baber/WOPTO huggingface dataset:
Patent GB-243820-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/04
Filed: 1924-09-08
Abstract: 243,820. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Sept. 8, 1924. Cylinders receiving liquid fuel. - Air compressed by an annular projection 17 on the piston in a corresponding recess 15 in the cylinder head passes at the end of the instroke to the combustion space 13 through an annular clearance formed between the projections 17, 14. The head of the piston is concave and the combustion chamber is conical, the fuel being injected from the apex of the cone through a series of orifices 23 directed parallel to the walls of the combustion chamber. The fuel which impinges upon the piston head is carried into the combustion space 13 by the compressed air issuing from the annular space 15. The fuel injector is provided with an air relief valve 19.
Patent GB-516095-A (GB)
Title: Improvements in or connected with saws
IPC: A61B17/14
Filed: 1938-07-18
Abstract: 516,095. Saws. SHERA, A. G., and WILKINSON, K. July 18, 1938, No. 21258. [Class 145 (ii)] [Also in Group VI] A circular saw 13 particularly for use in post-mortem and other surgical work, is carried by a shaft 10 rotatable by an electrically or other power driven shaft in a closed oil or grease bath formed by a casing 1 which constitutes the handle. The handle is reduced and screw-threaded at each end 1a and 1b where ball bearing races 2 and 3 for the shaft 10 are frictionally held in internal recesses 1c and 1d. On the rear end 1b is screwed a cap 4 with a central aperture and a threaded tubular extension 4a to which a flexible shaft is connected. On the front end 1a is screwed a member 7, having a central countersunk hole 7a, and a threaded extension 7b to which is screwed a cap 8 having a central hole and which retains the sealing washer 9 against the extension 7b. The shaft 10 is positioned by shoulders 10a and 10b and has a slot 10c to receive a member on a driving shaft. On the forward end of the shaft 10 is screwed a short shaft 12 on the threaded and reduced end 12a of which the circular saw 13 is held by an externally threaded nut 14. On the nut 14 is screwed a flanged member 15 constituting a depth gauge. A bar 17, engaged at its rear end in an undercut recess 1f is located in a slot between two lugs 1h and clamped therein by a clamping screw 16. ,The forward end of the bar carries the guard 18 which encloses the upper half of the saw. A thumb lever 16a is attached to the screw 16 for quick removal of the guard.
Patent GB-919509-A (GB)
Title: Ornamental breast cup for bust covering garment
IPC: B65G21/06
Filed: 1961-06-13
Abstract: 919,509. Ornamental brassieres. KORMAN, B. June 13, 1961 [June 24, 1960], No. 21283/61. Class 141. [Also in Group VIII] A breast cup is made up of two or more complementary flat laminated segments S1, S2. The flat segments are formed from an inner layer 11 of cotton, rayon, nylon or silk tricot, a padding layer 13 of foam rubber or cotton, a layer 12 of satin, cotton, rayon, nylon or silk, and a layer 14 of thin lace. Satin border strips 16 and motifs 18 backed with a film of thermoplastic cement are bonded to the fabric by a hot iron. In another embodiment (Figs. 8-10, not shown) the backing layer 11 and padding layer 13 are omitted. The thermoplastic cement may comprise cellulose nitrate and a thermoplatic resin compatible therewith, both dissolved in solvent for uniform film deposition on the satin.
Patent GB-216749-A (GB)
Title: Improvements in and relating to wireless receivers
IPC: H04B1/08
Filed: 1923-08-22
Abstract: 216,749. Rope, C. G. Aug. 22, 1923. Receiving sets, construction of; crystal detectors.-In a receiver of the kind in which all the essential parts for reception are mounted on or in conjunction with the listener's head-set, one earpiece constitutes the telephone and the other contains or carries the receiving set. A casing a contains the tuning coil b connected to a ring of tapping studs d co-operating with a contact blade f operated by a spindle e. A crystal holder h, rotatable by a knob h', co-operates with a catswhisker member i adjustable by knob j<1> and cam j. According to the Provisional Specification, where no ear-pieces are used the receiving set may be mounted on any convenient part of the head band.
Patent GB-1261743-A (GB)
Title: Method of and apparatus for forming bundles of fibres
Inventor: ELLIOT IAN ROBERTSON
IPC: C03B37/028
Filed: 1969-04-25
Abstract: 1,261,743. Drawing glass fibres from rods. RANK ORGANISATION Ltd. 10 April, 1970 [25 April, 1969], No. 21319/69. Heading C1M.  A bundle of fibres is formed by melting the aligned ends of spaced parallel rods 1A to 1H, as in a furnace 2, and drawing the melted ends downwardly into fibres 3A to 3H while the rods are fed axially into the furnace, and forming the fibres into a bundle, as on a drum, the rods 1A to 1H being of lengths progressively decreasing from a chosen maximum to a chosen minimum and the rods being simultaneously moved transversely in a body in the direction from the longest rod to the shortest rod, each rod being removed as soon as it becomes the chosen minimum length and afresh rod of maximum length being placed in the position vacated by the preceding rod 1A of maximum length as soon as such rod has moved transversely a chosen distance, i.e. to .the position of rod 1B, the rate of transverse movement being in a constant ratio to the rate of axial feed. As shown, transverse feed is by a conveyer 8 which is perpendicular to the axes of the rods and combined axial and transverse feed is by a conveyer 7 oblique to the rod axes, conveyer 7 being driven by a motor 9 and conveyer 8 through gearing 10 to have the same transverse speed as the transverse component of conveyer 7. 'The fibres are gripped by holders of conveyer 7 and pass through those of conveyer 8. Removal of minimum length rods 1H and insertion of fresh rods 1A may be by automatic means. The conveyers 7, 8 may have a linear path as'in Fig. 3 or a circular path as in Fig. 5. When a fresh rod is placed in position 1A, the end of the fibre 3A may be enlarged and to prevent this enlargement being bundled, a photo lens system (11, 12) is provided so that when actuated by the enlargement, a relay (13) is operated to control a cutter mechanism 14 to remove the enlargement and a blowing means 15 is then operative to blow the free end of the fibre 3A towards the fibres 3B to 3H. The initial rods may be of glass coated with glass of a lower refractive index or the drawn fibres may be coated with any required coating before' being brought together in a bundle, such coating being for instance .either opaque or transparent but with a lower refractive index than the fibres.
Patent GB-604225-A (GB)
Title: Improvements in or relating to electrical equipment on aircraft
IPC: B64D15/12
Filed: 1945-08-21
Abstract: 604,225. Variable-pitch propellers. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. Aug. 21, 1945, No. 21354. [Class 114] [Also in Group XXXV] Electrical equipment for aircraft comprises two dynamo-electric machines e, g and 27, 28 arranged behind and in front of the propeller hub respectively. The machine 27, 28 is driven as a generator by a fixed sun-wheel 14 and a rotatable sun-wheel 24 by a pinion 121 carried by shafts z which pass coaxially through pitch-changing shafts w and carry rear pinions 131 meshing with the fixed sun-wheel 14. The rear machine e, g serves as a motor for pitch-changing purposes and afterwards as a generator, the clutch s coupling. the armature g with part r of the rotating gear casing q. By means of a clutch 36 the front machine may be used as a motor for starting purposes. The two machines can thus provide all necessary current for de-icing, lighting, pitch-changing, &c. in the aircraft. The invention is equally applicable to contrarotating propellers. Specifications 603,438 and 603,450 are referred to.
Patent GB-772709-A (GB)
Title: Improvements in tyre repair apparatus
IPC: B29C73/30
Filed: 1955-07-25
Abstract: 772,709. Vulcanizing. UNITED STATES RUBBER CO. July 25, 1955 [Sept. 14, 1954], No. 21422/55. Class 70. [Also in Group XXXIV] Vulcanizable compound is injected into a puncture P in a tyre casing T through an opening 29 in one jaw 11 of a clamp 15 which comprises two relatively movable jaws 10, 11 presenting opposed surfaces 12, 13 between which the punctured portion of the type T may be clamped. As shown, the clamp 15 is of C-shape with the jaw 10 detachably secured to its lower end 14, and its upper end 21 formed with an internally screw-threaded opening 20 for axial adjustment therethrough of a screwthreaded hollow shaft 18. The hollow shaft 18 which has a detachable jaw 11 rotatably mounted on its lower end, is internally screw-threaded for axial adjustment therein of a screwed rod 32 formed with a clamping and pressing pin 33 at its lower end. The opening 29 through the concave face 13 of jaw 11 opens into the bore of a hollow shank 25 which has a side opening 26 to receive the nozzle 27, 30 of a screw-operated injector gun 28, Fig. 4. In operation, the jaws 10, 11 are centred over the puncture P either by means of the pin 33, which is long enough to project right through the opening 29 into the puncture, or by a cranked awl inserted via the opening 26 to align the opening 29 with the puncture. The jaws 10, 11 are then clamped over the puncture, rotation of the jaw 11 with the shaft 18 being prevented by guides 24 projecting upwardly from the jaw 11 to straddle the clamp end 21. The gun nozzle 30 is then inserted into the jaw opening 29 and clamped therein by the pin 33 of rod 32. The vulcanizable compound which is then injected into the puncture spreads into a recess 31 in the convex face of the lower jaw 10 to form a cap. After removal of the gun 28, the rod 32 is operated to project the pin 33 through the opening 29 to exert pressure on the compound in the puncture, whilst the jaws 10, 11 are heated to a vulcanizing temperature of about 298‹F. by means of electric resistance elements 35, 37 embedded therein.
Patent GB-614529-A (GB)
Title: Improvements in trowels
IPC: E04F21/06
Filed: 1946-07-19
Abstract: 614,529. Trowels. LANE & WHITTAKER, Ltd., and LANE, W. H. July 19, 1946, No. 21607. Addition to 599,241. [Classes 61 (i) and 61 (ii)] [Also in Group XXII] The trowel of the parent Specification with separately formed handle stem welded on to the blade has the stem 2 formed with a flat foot 2a which is welded to the rear end of the flat upper face of the blade 1.
Patent GB-126254-A (GB)
Title: Improvements in Chains.
Inventor: HOLLIS THOMAS
IPC: F16G13/14
Filed: 1918-12-24
Abstract: 126,254. Hollis, T. Dec. 24, 1918. Sheet-metal chains.-In chains of the type shown, the central part of each link is provided with lateral projections 5, and is bent laterally to a curvature which is preferably the same as that of the end of the eye 4 of the adjacent link with which it engages.
Patent GB-756673-A (GB)
Title: An improved structure of aerofoil shape for use in aircraft
IPC: B64C27/473
Filed: 1953-08-05
Abstract: 756,673. Aircraft framework. CLEMENS, R. Aug. 4, 1954 [Aug. 5, 1953], No. 21624/53. Class 4. [Also in Group V] A structure of aerofoil shape for aircraft, such as a wing aileron, rudder, elevator or helicopter rotor blade, comprises a leading portion 2 and a trailing portion 3, the leading portion having a steel skin 4, a spar 5 of fibre - reinforced plastic of high density, a massbalance rod 6, a duct 7 of resinous material and a root member 8 made of the same material as the spar 5 but embodying steel laminµ 9 and a metal cruciform member 10 comprising trunnions 11 and a duct 12 joined with the duct 7 to convey air or gaseous or liquid fuel to propulsion means mounted on the blade. The laminµ 9 are U-shaped to wrap around the trunnions 11 though they may be separate strips united by bolts passing transversely through the root fitting. The trailing portion comprises a steel shin 13, thin walled tubes 14 of pliable material forming lightening cavities and a resinous, solidified foam filler 15. Ribs 26, bonded at their forward ends to the spar 5 and at their trailing ends to a trailing edge member 25, may be provided. The leading portion 2 is constructed separately under pressure in a die (not shown) and when removed from this die the portion 2 is placed in a further heated die 23 with the roughly pre-formed skin 13 and tubes 14 which are filled with compressed air to prevent them from collapsing when the foaming filler 15 is injected under pressure. The interior faces of the die 23 conform to the required aerofoil contour and the filler 15 forces the skin 13 against the die face thereby causing it to take the correct contour. When the filler 15 has solidified the air is released from the tubes 14 and the completed blade removed from the die. Although the materials used join by natural fusing characteristics, additional adhesives may be applied where necessary to facilitate bonding. In an alternative construction the portions 2 and 3 may be made entirely separately in which case the trailing portion 3 would have a spar (not shown) connecting the forward edges of the ribs 26 and secured by adhesive to the spar 5.
Patent GB-490712-A (GB)
Title: Improvements in or relating to magnesium alloys
IPC: C22C23/02
Filed: 1937-08-05
Abstract: An alloy especially for vehicle and aircraft construction comprises more than 8 and less than 14 per cent of aluminium and either 4-14 per cent of cadmium, or 4-14 per cent of bismuth or 5-14 per cent of thallium or more than 6 and up to 14 per cent of zinc the remainder being magnesium.  The alloys may be heat treated by quenching from 380-420 DEG  C. and tempering at 200-230 DEG  C., a cold stretching being preferably effected between the two steps.
Patent GB-1530956-A (GB)
Title: Nip roll for treating web material and method for manufacturing same
IPC: D06B23/02
Filed: 1976-05-25
Abstract: 1530956 Rollers CLUPAK Inc 25 May 1976 [30 May 1975] 21647/76 Heading F2U [Also in Divisions D1 and D2] In a nip roll 20, comprising an outer cover body 24 of resilient, generally incompressible material, secured to the outer surface of an inner rigid cylindrical member 22, and a series of reinforcement elements 26, composed of material of a higher tensile modulus of elasticity than that of the resilient cover body, which are embedded within the cover body, and are each disposed at an acute sloping angle relative to a tangential plane in an associated portion of the periphery of inner member 22, the arrangement is such that the mutual engagement of the nip roll 20 against a radially-opposed roll 12 can cause displacement of the reinforced resilient cover 24, 26 in an asymmetric manner, to one side only of the nip, whereby in unidirectional rotation surface portions of the cover at the exit side of the nip may be caused to have an instantaneous velocity which differs from the velocity of corresponding portions at the entry side of the nip, and longitudinal forces may thus be exerted on a web material passing through the nip. In one embodiment, Fig. 2A, the direction of rotation shown results in a reduction of velocity at the exit from the nip, and the recoil of disdisplaced resilient cover material 28 returning to its former position causes the web material 18 to become compacted longitudinally. In another embodiment, Fig. 5, with reversed rotation the web material 18 becomes stretched longitudinally, and a paper web may be shredded in this manner. These two embodiments employ a rigid opposed roll 12 whose periphery has a constant velocity, and scuffing, gouging or tearing of a web may result from the disparity in velocity between rolls in contact with its opposite surfaces, but those effects may be avoided in a further embodiment, Fig. 4, in which the nip is formed between two identical resilient rollers 20, of opposite hand in constructional orientation. The cover 24 may be composed of natural or synthetic rubber, and the reinforcement 26 may be of a variety of alternative materials. A method of manufacture is described, and may include the addition of other un-reinforced rubber layers prior to curing.
Patent GB-532335-A (GB)
Title: Improvements in fireplaces or grates
IPC: F24B1/195
Filed: 1939-07-26
Abstract: 532,335. Open fireplaces. HARRISON. Ltd., G. K., and MOLYNEUX, J. July 26, 1939, No. 21675. [Class 126] A fireplace or grate comprises a horizontal or sub. stantially horizontal fire grid or fret 5 removably supported on ledges 6 above a well or ash pit 4 permanently closed at the front and an auxiliary fireback 9 also resting on the ledges 6 is spaced away from the rear wall 2 of the fireplace to form a flue 10 open at its upper end and communicating with the ash pit at its lower end. The fire back 9 is prevented from falling forwardly by projections 12 on the sides of the fireplace. The upper parts of fireback 9 and rear wall 2 are inclined forwardly. A tapering throat 15 is mounted above the fireplace and extends into the chimney. Part of the air entering at the front of the fireplace is drawn through the fire into the well 4 and then passes through the flue 10 to mingle with the gases rising from the fire. According to the Provisional Specification the opposing surfaces of the flue 10 may be formed with flutings of semi-circular section.
Patent GB-206592-A (GB)
Title: Improvements in heating tanks or radiators for incubators
IPC: A01K41/00
Filed: 1922-08-09
Abstract: 206,592. Slade, M. W. Aug. 9, 1922. Heating by circulation of fluids.- The tank or radiator of an incubator is constructed as a self-contained water-circulating system to which water from a boiler is admitted by a thermostatically-controlled valve. The flow and return pipes d, e of the tank a are connected by a cross-pipe h, and baffles l having graduated apertures l' are fitted to equalize the flow through the tank. A valve f controlled by a thermostat g, Fig. 1, regulates the amount of water passing from the boiler c into the circulating system. The transverse pipe h allows circulation to continue when the valve f is closed, the pipe e being exposed to the atmosphere for instance in a flue a'. A pipe i allows circulation in the boiler to continue when the valve is closed. According to the Provisional Specification the tank may be connected directly to a boiler that is regulated by any known method.
Patent GB-1441082-A (GB)
Title: Glass ceramic material and process for its production
Inventor: BROEMER HEINZ
IPC: A61L27/12
Filed: 1974-05-16
Abstract: The material contains     from 20 to 60% by weight of SiO2   from 5 to 40% by weight of P2O5   from 2.7 to 20% by weight of Na2O   from 0.4 to 20% by weight of K2O   from 2.9 to 30% by weight of MgO and   from 5 to 40% by weight of CaO In addition, it may contain from 0.05 to 3% by weight of fluorine as fluoride. The material is produced by melting a glass batch containing a calcium phosphate and the remaining components as oxides. The material recrystallises in the apatite structure. In this form, it has good organ compatibility and is particularly suitable for prosthetic purposes (bones and teeth). However, it can also be used as a porous sinter material and as a filler.
Patent GB-662390-A (GB)
Title: Bale density controlling mechanism
IPC: A01F15/08
Filed: 1949-08-22
Abstract: 662,390. Baling press. DEHN, F. B. (Minneapolis-Moline Co.). Aug. 22, 1949, No. 21759/49. Class 94(i) A bale density controlling mechanism for hay balers having a baling chamber through the end of which the bales are ejected by the pressure of succeeding bales includes bale engaging members for frictionally engaging three adjacent sides of the bales, and yieldable means for exerting forces on said members urging them into contact with the bales. A discharge end extension of a baling chamber A has a swingably-supported inclined top plate 17 adapted yieldably to engage the top of a bale pushed thereunder, and two side shoes 55 adapted yieldably to engage the sides of the bale. The top plate 17 is suspended at its inner end by a pair of long pivoted links 19 and at its outer end by a pair of short pivoted links 23, and is urged back against the direction of travel of the bales and to a more inclined position by an adjustable tension spring 27. Each side shoe 55 is pivoted at 57 to an upright carrier bar 38 pivoted at its lower end at 41 to the main frame, the upper ends of the bars being inter-connected across the top of the baling chamber extension by an adjustable tension spring 42. The arms 38 are also linked to the main frame by rods 50 to resist rearward thrust thereon and are linked by loosely-mounted bars 48 to the plate 17 so that movement of the plate upwardly and in the direction of bale travel will move the bars 38, and thus the shoes 55, outwardly against the action of the spring 42, a certain amount of lost motion being, however, permitted.
Patent GB-876593-A (GB)
Title: Improvements in or relating to power transmission shafts
Inventor: BASTOW DONALD
IPC: F16D3/84
Filed: 1958-07-08
Abstract: 876,593. Shaft couplings shafts; machinery guards. BIRFIELD ENGINEERING Ltd. July 7, 1959 [July 8, 1958], No. 21781/58. Classes 80 (2) and 80 (4). In a telescopic propeller shaft for use between an agricultural tractor and a trailer implement, wherein inner and outer tubes 1, 2 are drivingly connected to Hooke's joint forks 4, 3 respectively, longitudinal, re-entrant portions 5, 6 engaging each other are formed in the walls of the inner and outer tubes to enable the shaft to transmit torque whilst accommodating variation in its length. The tubes are fabricated from strip material welded along the centre of one of the re-entrant portions of each tube. The welds are arranged in portions engaging each other, weld flash occurring at 8, 9 respectively of the outer and inner tubes. The innermost sections of the re-entrant portions 5, 6 are arranged to clear each other, those of the portions 6 being flattened, thereby accommodating the weld flash at 8. A circular reinforcing tube 12 is welded around the free end of the outer tube 2 as shown, or may extend over the greater part of the outer tube length. The re-entrant portions extend the entire length of the tubes to tightly engage corresponding recesses 10 formed in the forks. To ensure correct phasing of the forks 4, 3, the re-entrant portions of each tube are not equi-spaced about the axis of the tubes. A surrounding, fixed telescopic guard comprising inner and outer tubes 14, 15 spot-welded to flared sections 16, 17 is supported by bearings, the balls of which engage the sections 16, 17 and inner races 21 mounted around the outer ends of the tubes 1, 2, bearing cages 19 being fixed to the sections 16, 17. The outer joint forks 23, 24 are splined to their corresponding shafts and are releasably axially locked thereto by spring- loaded transverse pins 26. The propeller shaft may be provided with a torque limiting clutch, such as that described in Specification 876,592, arranged at the side of one of the joints remote from the shaft 1, 2.