baber/WOPTO huggingface dataset:
Patent GB-588863-A (GB)
Title: Improved apparatus for producing a vacuum
IPC: F04F9/00
Filed: 1944-04-18
Abstract: 588,863. Vapour jet high vacuum pumps; liquid pumps. EDWARDS & CO. (LONDON), Ltd., W., TILLS, J. W., and LOVATT, J. B. April 18, 1944, Nos. 7123 and 7124. [Classes 71 and 102 (i)] The working fluid for a vapour stream vacuum pump is stored in a reservoir containing a liquid feed pump. A feed pump 16, Fig. 1, disposed near the bottom of a reservoir 10 for dibutyl phthalate or other working fluid, is secured to a wall thereof and driven by a spindle 14 rotated on a motor 12 mounted on the cover 11 of the reservoir. The pump delivers liquid past an adjustable pressure relief valve 19 to a pipe 22, 26 leading by a pipe 29, Fig. 2, to the jacket 31 of a tapering injector chamber 32. The chamber 32 is connected at one end 41 to a backing pump adapted to create a fore vacuum in the chamber, and at the other end 35 to the space to be exhausted. The chamber contains a vaporizing nozzle 34 fed from the jacket 31 through a coiled tube 33 where the liquid is flash vaporized by a low voltage high amperage electric current supplied through a conductor 42 by the low tension side 37 of a transformer 36, 36 immersed in the liquid in the reservoir 10. Condensed vapour returns by gravity to the reservoir 10. The flash vaporizer may comprise an inlet tube 67, Fig. 4, for the liquid which fills a chamber 66, excess escaping by a tube 68. A spraying nozzle 55 discharges the liquid against a core . 60 in a chamber 54 heated by an electric coil 62 and the vapour emerges through lower passages 49 to nozzles 52 in the conical base of the heated member 50 which houses the chamber 54 and upper passages 48 with a core 58. Reference has been directed by the Comptroller to Specification 552,904.
Patent GB-722341-A (GB)
Title: Improvements relating to turbine blades
Inventor: DAWSON LINDSAY GRAHAME
IPC: F01D5/28
Filed: 1952-03-19
Abstract: 722,341. Turbine blades. ROLLS-ROYCE, Ltd. March 11, 1953 [March 19, 1952], No. 7149/52. Class 110 (3). A turbine blade is formed from rod-like elements of a ceramic material disposed substantially parallel to each other and to the longitudinal axis of the blade, the elements extending throughout the length of the blade and within the blade profile. The ceramic elements may have a uniform circular, triangular or polygonal cross-section and may be bonded together by a high-temperature cement and the cement may be arranged to form a smooth surface for the blade. The ceramic elements 14 in the blades shown in Fig. 1 are of the same cross-section and form a blade of substantially solid cross-section, but the blade may be formed with a passage therethrough. In Fig. 4, the ceramic elements 17 on the convex side of the blade are of larger cross-sectional area than the remainder of the elements 18 of the blade. The elements may also be tapered along their length so as to form a blade of tapering cross-section, or they may be disposed with their axes skewed to the longitudinal axis of the blade so as to form a twisted blade. A tapered blade may also be formed by using a high-temperature cement non-uniformly between adjacent ceramic elements. The ends of the blades may be encircled by straps or collars 13 and a metal sheath 21, Fig. 4, may be disposed around the ceramic elements to form the profile surface of the blade and arranged to be substantially a non-load-transmitting portion of the blade. The blades in Fig. 1 are mounted in apertures formed in inner and outer coaxial annular members 10, 11. In one arrangement, the rods are about 0.060 in. in diameter and there are about 90 rods per blade. The rods 17 in Fig. 4 are about 0.125 in. in diameter and the rods 18 are 0.060 in. in diameter.
Patent GB-613510-A (GB)
Title: Improvements in and relating to sheafing or binding apparatus
IPC: A01D59/10
Filed: 1946-01-29
Abstract: 613,510. Sheafing-apparatus HAY, G. L. S. Jan. 29, 1946, No. 7221/45. [Class 6 (iii)] Sheafing or binding apparatus of the type which has a rotary chain driving wheel 1 operatively connected to oscillatary twine-carrying needles 14 and which is located above an inclined trussing table 2, has pivoted to the driving wheel 1 one end of a link 6 the other end of which has a lost motion connection with a slide 8 to which is fixed a cam 10 the latter being engageable with a follower 11 attached to the cranked end of a rod 12 disposed transversely of the planes of oscillation of the needles, to which rod are attached bifurcated tongues 13 extending above the table archwise over the needle paths, the bifurcations of which tongues are penetrated by the needles. The tongues 13 prevent more straw passing to the table 2 when a sheaf is being bound, but on completion of the binding and ejection of the sheaf by the parts 23, the tongues swing down to the table and allow the straw to pass over them ; the various parts being driven in timed relationship from the wheel 1.
Patent GB-679093-A (GB)
Title: Improvements in and relating to drip trays for refrigerators
IPC: F25D21/14
Filed: 1951-03-29
Abstract: 679,093. Refrigerators. BRITISH THOMSON-HOUSTON CO., Ltd. March 29, 1951 [April 11, 1950], No. 7304/51. Class 29 In refrigerators having the evaporator 5 extending the full width of the food storage compartment 4 and a meat pan 11 supported beneath one part of the evaporator, a drip tray 10 normally supported above the meat pan is shifted during defrosting to an inclined position beneath the other part of the evaporator as shown to collect drip water and ice falling from that part of the evaporator and direct it into the pan 11. During normal working the drip pan collects and retains condensation water particularly from the evaporator door 7. Fixed between brackets 18, 19 on the side walls of the food compartment is a frame 9 with a trough-shaped front cross member 12 positioned beneath the evaporator door and having an aperture 55 draining into the drip tray 10 during normal working. Side members 14, 15 and a central member 13 form guides in which the drip try and the next pan can slide, the central member being sloped to the right to direct defrost water from the drip tray 10 to the pan 11 during defrosting. The surface of the trough 12 slopes towards the drain 55. The guide members 13, 15 are provided with superposed slides for the drip tray and the next pan. The edge 61 of the drip pan is located below the top of its other walls and forms a mouth for water overflowing into the pan 11. A stop 54 and guides 57, 44 position the drip pan and meat pan.
Patent GB-1416663-A (GB)
Title: Drive for bunk feeder
IPC: A01K5/02
Filed: 1975-02-18
Abstract: 1416663 Discharging hoppers L J LOESCH and C E LOESCH 18 Feb 1974 [22 Feb 1973] 7311/74 Heading B8S [Also in Division F2] A linear, e.g. reciprocating, drive for a slide such as a pan 14, for distributing cattle feed F uniformly over a feed bunk B, comprises a roller chain 18 having, between guide rollers 19, a straight run, supported by a plate 23, and engaging rack teeth 21 on the slide, the pitch of the chain rollers being slightly greater than that of the rack teeth, so that drive contact therewith occurs only on the downstream end 18À2, and is discontinued as the receding link 18À5 becomes inclined to the rack. The chain rollers are also of smaller diameter than the tooth spaces of the rack to remain out of contact as, e.g. at 18À4. Any tendency of the chain to lift the slide 14 at the beginning or end of mesh is thereby avoided. The chain 18 is driven by a central sprocket 20, driven through a second chain by an electric motor 17, reversed by limit switches at stroke ends. The slide 14 reciprocates between side walls of a trough 13 having pivoted gates 16 to feed shoots 14À1.
Patent GB-138213-A (GB)
Title: Improvements in and relating to stiffeners or supports for soft collars
IPC: A41B3/08
Filed: 1919-03-24
Abstract: 138,213. White, W. D. March 24, 1919. Stiffeners.-Stiffeners or supports for soft collars, of the type comprising a T- shaped blank of material formed with prongs to engage the collar, have centrally-arranged notches 26, 27 within which is arranged a longitudinally-disposed strip of fabric 28, which will lie directly behind the opening formed between the adjacent edges of the front of the collar.
Patent GB-151663-A (GB)
Title: Improvements in or relating to hydraulic valves
IPC: F16K11/07
Filed: 1919-03-25
Abstract: 151,663. Vickers, Ltd., and Pearson, R. J. A. March 25, 1919. Piston valves.-A multiple-way piston valve, particularly applicable for use with hydraulic machinery, has a spacer tube fitted between a shoulder on the valve spindle and a cup-leather fitted on the reduced end of said spindle, said leather being adapted to co-operate with an open-ended perforated exhaust sleeve mounted in the casing. The larger part b<2> of the valve spindle has two sets of holes b<4>, b<5> preferably graduated in size and set in spiral or staggered formation, adapted when one set is moved past a cup-leather g, held in position by a perforated sleeve d, to permit fluid entering at m to pass the passage n. Fluid flows from passage n into the exhaust l<1> when the piston h is moved so as to uncover the holes e<1> in the sleeve e. The holes in the valve spindle and sleeve may be drilled obliquely or at an angle to the longitudinal axis to reduce scouring to a minimum, and the packings may be arranged so that equal pressures act on each side of the lips as they pass the ports.
Patent GB-438350-A (GB)
Title: An improved method of and apparatus for moulding articles from plastic-moulding compositions
IPC: B29C33/00
Filed: 1934-03-09
Abstract: 438,350. Moulding synthetic resin &c. HIGGINSON, G. S., 20, Buckingham Street, Strand, and VREDENBURG, J. C., 2, Charterhouse Square, both in London. March 9, 1934, No. 7549. [Class 87 (ii)] In moulding tubular articles from plastic moulding-compositions, e.g. synthetic resins, the material is displaced by the pressing force from a die cavity into the bore of a hollow matrix or punch which, as it advances into the die cavity, causes the material to flow in the opposite direction into a moulding space formed between a core and the interior of the punch. As shown in Fig. 1, the punch carries dowel pins 3 engaging with bores 7 in the die 6, and is formed with a stepped projection 2 which engages the stepped recess 8<a>, 8<b> in the die 6. The cavity in the punch consists of a tapered portion 4<a>, a hexagonally-shaped portion 4b and a lower skirt portion 4<c> and its face is inclined as at 5. The die carries a plug 9 having a screw-threaded mould recess 9<a> and is formed with an inclined surface 10 and an upstanding rim 9<b>. The core pin 11 may be integral with, or slidably removable from, the die 6 and is steadied by an aperture 13 in the punch. The arrangement facilitates uniform curing of a moulding powder and obviates warping due to the pressure. One or more core pins may be provided. The apparatus may have several die cavities and corresponding punch projections. In a modification, designed to produce a cotton reel, the punch is in two or more parts secured by top and bottom screwed locking rings, the lower whereof forms the inclined surface 5. According to the Provisional Specification, the punch parts may be hinged or hooked on a support such that they hang divergently en release, or they may be diverged by cams thereon engaging fixed projections on raising the punch. Articles other than tubular articles may be produced, and for moulding a number of small articles, the punch may be divided and formed with layers of separate cavities connected by channels wherein the material is forced from the die. On dismantling the punch, the articles are separated by breaking the connecting portions formed by the channels, and excess material is removed as by grinding.
Patent GB-181461-A (GB)
Title: Improved apparatus for the continuous washing and drying of blue prints and the like
IPC: G03D15/02
Filed: 1921-03-10
Abstract: 181,461. Hall, B. J. March 10, 1921. Continuous apparatus for developing, fixing, washing, and finishing.-An apparatus for the continuous washing and drying of blue prints or the like has rollers, brushes, or bands, partly immersed in water and revolving against the direction of feed of the prints, one side only of the paper being wetted, in order to facilitate the subsequent drying process. One form of the device is shown diagramatically in Fig. 4, wherein h<3> are driving chain-wheels carrying an endless chain h<1>. The paper enters at w and is attached by a clip to the endless chain h<1>. The rol ers A are partly immersed in the water tank B, in which water is circulated in the reverse direction to that of the paper, and the paper is pressed on to the wetted rollers by rollers d<1> Scrapers d<2> remove superfluous water from the paper. Subsequently, a tripping-piece releases the paper from the chain, whence it passes between the drying-drum E and endless apron J. The device mav include one or more additional rollers A revolving in a fixing- bath. Specification 181,460 [Class 34 (i) Drying gases &c.], is referred to.
Patent GB-386163-A (GB)
Title: Improvements in and relating to magnifier lenses for spectacles and the like
IPC: G02C7/06
Filed: 1932-03-15
Abstract: 386,163. Magnifying-appliances ; spectacle lenses. BAKER, W. E., 313, High Holborn, and HALL, S. J., 48, Tybenham Road, Merton Park, both in London. March 15, 1932, No. 7652. [Class 97 (i).] A lens unit for spectacles enabling magnification to be obtained in excess of that required for correct. ing visual defects, e.g. for inspecting gems &c., comprises a transparent support a for mounting in or on a spectacle frame, and a small magnifying lens b mounted on the support so that it will not interfere materially with freedom of vision and can be used as a magnifier when the eye is deflected to a specified position. The support a may be a spectacle lens for correcting visual defects, or, if there are no such defects, it may be a piece of plain glass. One surface b<1> of the lens b may have the same curvature as the surface a<1> of the lens a, Fig. 3, or these curvatures may be different, Fig. 4, the lens a then having a recess a<2> to accommodate the lens b. In a specific example described the lens b is about 6 mm. in diameter and is about 9 mm. above the horizontal axis of the support and about 3 mm. to one side of the vertical axis.
Patent GB-986878-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: SHAW WILLIAM
IPC: F02C7/047
Filed: 1964-02-24
Abstract: 986,878. Gas turbine engines. ROLLSROYCE Ltd. Feb. 24, 1964, No. 7674/64. Addition to 879,621. Heading FlG. A gas turbine engine comprises an air intake across which extend substantially radially a plurality of angularly spaced apart struts, a wall of the air intake forming the radially inner wall of an annular conduit which extends from adjacent the struts to the leading edge of the air intake. The engine is provided with ducts means by which air which has been compressed by compressor means of the engine and heated thereby is passed to passageways in the interiors of the struts, the heated air first passing radially inwardly through the passageways and then radially outwardly through adjacent passageways in the struts which are thereby heated. The heated air which has passed through the struts is supplied to the annular conduit so as to effect heating of the leading edge of the air intake. A portion of the air intake 11 of a gas turbine engine is shown in Fig. 1, the intake being defined by a wall 13 which constitutes the radially inner wall of an annular conduit 14. Air under pressure from the engine compressor is supplied through a duct 20 to two axially spaced annular manifolds 21, 22 thence passing through tubes 23 which extend into struts 12 which extend radially across the air intake duct 11. The air discharging from the tubes flows radially outwardly through the struts adjacent the leading and trailing edges thereof into an annular manifold 24 within which the manifolds 21, 22 are disposed. The air then passes through aligned ducts 26, 28 into the annular conduit 14 thus heating the air intake. The air from the conduit 14 discharges at 16 and then flows through an annular passage 31 and is utilised for heating other parts of the engine. In a second embodiment the air from the conduit 14 is discharged to atmosphere whilst in a third embodiment the air from the conduit 14 is caused to flow through an adjacent annular passage and back into the air intake 11.
Patent GB-250556-A (GB)
Title: Machine for closing bottles and similar containers by means of disks of cardboard or other material
IPC: B67B1/10
Filed: 1926-03-19
Abstract: 250,556. Jorgensen, A. M. April 8, 1925, [Convention date]. Stoppering. -A machine for inserting discs of cardboard &c. into the mouths of bottles &c. to close them, comprises a series of trays f rotatably mounted on arms e extending from a vertical spindle a. A plate h provided with mouthpieces i in the underside for receiving the bottle mouths extends above and in parallel relation to the arms e. Each tray f has a corresponding disc-supply tube m from which discs n are supplied to reciprocating slides k, Fig. 3. The slides are situated in guideways and receive the discs n when in the forward position relative to the direction of rotation of the machine. A spring-controlled arm t pivoted at s to the plate h is provided for each slide, and operates the slide by means of double lever x pivoted to the frame of the machine. The arm t is pressed backwards in engaging the lever x, and the disc n is carried by the slide k over the mouthpiece i, whence it is pressed by a piston o operated by an eccentric p into the mouth of a bottle &c. The lever x is counterweighted and is only operative when a bottle g is in a frame.
Patent GB-563844-A (GB)
Title: Improvements in or relating to air and like cleaners
IPC: F02M35/024
Filed: 1943-05-17
Abstract: 563,844. Air' cleaners. TALBOYS MANUFACTURING CO., Ltd., and SMITH, C. G. May 17, 1943, No. 7794. [Class 8 (ii)] [Also in Group II] An air cleaner comprises a casing of circular or polygonal section containing baffles b wetted by oil, e.g. by wicks c passing through a plate into an oil reservoir e as described in Specifications 547,607 and 552,950, with a preliminary centrifugal separator formed by radial slots r in the cover and in a disc n which is pressed into contact with lips on a closure plate g having a central air inlet. A nut w on a screwed rod t holds the cover in place and a nut v holds a baffle plate over the oil-wetted baffles. According to the Provisional Specification, a rectangular casing containing staggered baffies may be provided as described in Specification 552,950 having a closed air inlet header at one end and an outlet at the other, and on each side a chamber with louvred air inlets in the walls, containing a helical baffle.
Patent GB-1262101-A (GB)
Title: Polymerization process
IPC: C08F4/04
Filed: 1969-02-13
Abstract: 1,262,101. Polymerization process. NALCO CHEMICAL CO. 13 Feb., 1969 [29 Nov., 1968], No. 7820/69. Heading C3P. Water-soluble polymers are prepared by polymerizing one or more polar solvent-soluble monomers, which undergo polymerization exothermically, by means of the following steps: (A) forming a polar solvent solution of the monomer(s) and a polymerization catalyst while maintaining a temperature of at least 100‹ F. but below the polymerization temperature, (B) forming the thus prepared solution into a layer 1-30 mm. thick, (c) heating the layer by means of a heated gas in a closed atmosphere to a temperature sufficient to initiate polymerization, and (D) thereafter continuing the polymerization in said closed atmosphere by the exothermic heat of reaction while utilizing said gas as a coolant until the desired polymerization is completed. In a preferred embodiment, the solution is formed into layers by placing in metal trays coated with polytetrafluoroethylene, and the trays heated in a drier unit wherein the heated gas is air; alternatively, the layers can be formed on a conveyer belt which is moved continuously through a drying chamber. After polymerization, the temperature can be increased to remove the solvent from the polymer product. The process is suitable for the preparation of acrylamide polymers, e.g. polyacrylamide and acrylamide-acrylic acid copolymers, which polymers are useful as flocculating agents for suspensions of solid particles. Polymerization catalysts specified are azobisisobutyronitrile, ammonium persulphate, and ammonium persulphate/sodium metabisulphite. In examples polymerization is effected in aqueous solution.
Patent GB-372478-A (GB)
Title: Improvements in cooking ranges
IPC: A47J37/12
Filed: 1931-03-14
Abstract: 372,478. Frying-ranges. NUTTALL, H., Castle Works, Bridge Street, Rochdale. March 14, 1931, No. 7869. [Class 126.] In a frying-range provided with a heater 1 above the level of the furnace and connected to it by a duct, so that hot gases circulate through the heater for the purpose of maintaining cooked food in a rack or tray 3 warm, the gases are drawn forcibly through the heater by means such as a fan. In the construction shown, the heater 1 tapers in depth towards the front, the gases passing to it from the furnace through a conduit 5, thence round a baffle 11 in the heater, and leaving by a conduit 9 to which an exhaust fan (not shown) is connected. The heater 1 is connected to the conduits 5, 11 by telescopic joints, so that it may be adjusted vertically to vary the heating effect on the food above it.