baber/WOPTO huggingface dataset:
Patent GB-1184101-A (GB)
Title: Synchronising Apparatus for Toothed Wheel Change-Speed Gears
Inventor: HAGENMEYER HERMANN
IPC: F16D23/06
Filed: 1967-02-23
Abstract: 1,184,101. Positive clutches. H. HAGENMEYER, [trading as GETRAG GETRIEBEUND ZAHNRADFABRIK HERMANN HAGENMEYER]. 23 Feb., 1967 [24 Feb., 1966], No. 8728/67. Heading F2C. In a split ring synchronizer, for a dog clutch 6, 7 of a motor vehicle change-speed gear, comprising a friction ring 9 with a slot opening, a spreader ring 110 within the friction ring to increase the self-servo action of the latter and having an external lug 114 engaging the friction ring slot and an internal lug 117 engaging a slot in a hub 4<SP>1</SP> secured to a pinion 4 and supporting the synchronizer and the dogs 6, the subtended angle at the axis of rotation of the synchronizer between the lugs 114, 117 is between 30 and 150 degrees. As shown, when the axially slidable clutch sleeve 7 is rotated in direction D relative to the hub 4<SP>1</SP> (Fig. 3), a roller 120<SP>1</SP> in a V-slot 119 between the ends of the spreader rings 110 is urged radially outwards to press the free end 9<SP>1</SP> of the friction ring more firmly against the sleeve 7. The upper limiting angle of 150 degrees between the lugs is determined as 180 degrees minus the sum of the friction angles between the materials of which the lugs 114, 117 and the parts co-operating with them are made, to prevent self-locking of the synchronizer once the dog clutch has engaged. In a modification (Fig. 2, not shown), the roller is dispensed with, and a portion of the spreader ring outer surface is pressed directly against the inner surface of the free end of the friction ring during synchronization. Here, the spreader rings (10) may be unbroken, or may have a radial or inclined sawcut (10<SP>1</SP> or 10<SP>11</SP>) therethrough in the section between the two lugs. Reference has been directed by the Comptroller to Specification 769,838.
Patent GB-860082-A (GB)
Title: Axle bearing adjustment means
IPC: F16C25/06
Filed: 1959-03-13
Abstract: 860,082. Differential gear. TIMKEN ROLLER BEARING CO. March 13, 1959 [July 30, 1958], No. 8757/59. Class 80 (2). [Also in Group XXXIV] In a differential gear, a device for adjusting the spacing between rear axle shaft sections 18, 20 comprises a divided block 56 having inclined abutting faces 66, 68 and screw and nut means for effecting relative movement of the block parts 58, 60 along the inclined faces in order to vary the distance between opposed parallel faces 62, 64 which abut the ends of the shafts 18, 20 respectively. The screw and nut means comprises a threaded member 74 having left and right-hand threads over its opposite end portions which engage correspondingly threaded bores 80, 76 in the block part 58 and a flange 78 on block part 60 respectively. A lock nut 84 is provided. The blocks have recesses 70, 72 which embrace a pinion shaft 46. Access holes 88, 86 are provided in housings 44 and 12.
Patent GB-649733-A (GB)
Title: Improvements in and relating to optical glass
IPC: C03C3/247
Filed: 1948-03-25
Abstract: 649,733. Glass manufacture. KODAK, Ltd. March 25, 1948,. No. 8878. Convention date, March 26, 1947. Addition to 649,511. Drawings to Specification. [Class 56] A fluophosphate glass has the following molecular composition: PbO or PbF 10-50 per cent; A1 (PO 3 ) 3  15-40 per cent; NaF or BaF 2  25-70 per cent. The Pb has the effect of lowering Abbe value and increasing the index of refraction. Preferred ranges of the molecular content, and percentages by weight of specific examples are given as:- PbO 10-30, 29, 35; A1 (PO,), 15-40, 51, 48; NaF 50-70, 20, 17; alternatively PbF 2  20-50, 33.0, 36.7; Al (PO 3 ) 3  15-40, 35.5, 29.9; BaF 2  25-50, 31.5, 33.4. Specification 649,734 is referred to.
Patent GB-992529-A (GB)
Title: Improvements in or relating to covers for periodicals
Inventor: DUNN HUGH MCCANDLISH
IPC: B42F7/04
Filed: 1963-03-06
Abstract: 992,529. Loose covers for books &c. DUNN & WILSON Ltd. Feb. 24, 1964 [March 6, 1963], No. 8910/63. Heading B6E. A loose protective cover for a periodical &c. comprises a transparent front 10 hinged to a back 11, and studs 15, or a strip of material, secured to the exterior of the front 10 to space the latter above the surface of a desk &c. when the cover is fully open to prevent damage to the cover or the desk. The front 10 may be of glass or " Perspex " (Registered Trade Mark), the back 11 of fibre board, and the studs 15, or strip, of synthetic resin. A spine 12 of sheet aluminium is interposed between the front 10 and back 11, and the three components are secured together by flexible strips of material which are gummed to the exterior and interior faces. An elastic cord 14 is threaded through holes 13 in the spine 12 to serve as a retaining means for a periodical &c.
Patent GB-1452885-A (GB)
Title: Method of the cyclic electrochemical processing of sulphuric acid- containing pickle waste liquors
IPC: C25C5/02
Filed: 1975-03-04
Abstract: 1452885 Regenerating pickle waste by electrodialysis; electro-depositing iron. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT 4 March 1975 8940/75 Heading C7B In the cyclic processing of pickle waste liquors containing a maximum 100g H 2 SO 4  and minimum 25g Fe<SP>++</SP> ions per litre, combined with the pickling of iron, by electro-chemical decomposition of FeSO 4  and electrodialytic separation of the acid and SO 4  components of the liquor, the ammonium, Mg or alkali metal (e.g. Na and/or K) sulphate concentration of the liquor is adjusted to 0À5-1À0 mol/l by introducing an appropriate ammonium, Mg or alkali metal salt, the acid content of the liquor is reduced to a maximum of 100g H 2 SO 4 /1, and the liquor is fed into and passed through first the cathode chambers of serially connected dual chamber diaphragm cells to reduce the Fe<SP>++</SP> content to 7-15g/l, then the anode chambers of the cells parallel with and in the same direction as the flow in the cathode chambers, the current density and temperature being maintained at 15-22 A/dm<SP>2</SP> and 70-90‹C. In the first cells, mallable Fe is electro-deposited on to Fe sheet cathodes which are occasionally replaced by new Fe sheets; in the last cells where the Fe<SP>++</SP> content of the catholyte drops below 25g/l, Fe powder is electro-deposited on to cathodes of Al, graphite or Pb. Na 2 SO 4  and/or K 2 SO 4 , as HSO 4 <SP>-</SP> producing additive, is preferably maintained in the steepers. Anodes may be of Pb sheet containing 1% Ag. The diaphragm is preferably a woven polyester or polypropylene web.
Patent GB-1445075-A (GB)
Title: Valve seat material for an internal combustion engine
IPC: F01L3/02
Filed: 1975-03-05
Abstract: 1445075 Sintered ferrous alloys SUMITOMO ELECTRIC INDUSTRIES Ltd and HONDA GIKEN KOGYO KK 5 March 1975 [7 March 1974 (3)] 9138/75 Heading C7A A sintered ferrous alloy containing:- Mo 3-15 Co 2-12 C 0À1-2 with Pb 0-15 and Glass 0À5-8 optionally contains 0À5-10% W and 0À5-8% Ni, the balance being iron with the usual impurities; and is suitable for valve seats in I.C. engines, particularly where the fuel is lead-free. The powders are mixed in the required proportions, pressed to form a compact of about 90% density and sintered at 1130‹C in a reducing atmosphere. The glass used has a low melting point (below 500‹C) and may contain B 2 O 3 , P 2 O 5 , ZnO and PbO as its main components.
Patent GB-716064-A (GB)
Title: Colour projection of invisible images
IPC: G03B42/02
Filed: 1952-04-10
Abstract: 716,064. Cathode-ray tubes; luminescent materials. SHELDON, E. E. April 10, 1952 No. 9172/52. Class 39(1) [Also in Group XL(b)] A cathode ray tube device 3 for generating television-type signals from an X-ray image comprises a plurality of structures each comprising a fluorescent screen 6, 12 which excites a corresponding photo-emissive screen 8, 14. An X-ray image of an object 2 incident upon the screen 6 produces a visible image which causes the emission of electrons from screen 8, these electrons producing a further visible image on the fluorescent screen 12. An electron image is finally formed upon the mosaic 16 which is scanned by an electron beam to produce video signals for application to the amplifier 22. A modification (Fig. 4, not shown) is described which is responsive to infra-red images. It is also stated that the apparatus may be modified to respond to atomic particles, e.g. neutrons, Photo emissive materials. It is stated that the screen 8, 14 may be composed of caesium oxide activated with silver caesium with antimony or bismuth, or antimony with lithium, potassium or rubidium. Luminescent materials. The following substances are stated to be usable in the fluorescent screens 6 when the exciting radiation comprises X-rays: silicates, selenides and sulphide of zinc, leadbarium sulphate, calcium tungstate, sodium iodide activated with thallium, sodium chloride with 10 per cent silver chloride, lithium iodide activated with thallium, and lithium zirconate. It is also stated that anthracene, naphthalene or terphenyl may be used. In the case where irradiation by neutrons is employed the screen material may comprise paraffin wax, cadmium, copper, lithium iodide activated with thallium, lithium zirconate or a material selected from the group boron, lithium, gadolinium uranium. Substances stated to be sensitive to infra-red radiation previously excited with ultra-violet radiation are alkali-earth selenides and sulphides activated by cerium and samarium or by copper and lead. Sulphides or selenides activated by europium may be used. Phosphors exhibiting a quenching effect when previously irradiated by ultra-violet light are stated to be ZnS : Cu : Fe and Cd (S : Se [Cu]). Substances which may be used for the screen 12 which fluoresces under the action of incident electrons are zinc silicate, zinc sulphide, lead-barium sulphate and calcium tungstate.
Patent GB-116175-A (GB)
Title: A New or Improved Combination Garden Tool.
Inventor: BRAND CHARLES EDWIN
IPC: A01B1/20
Filed: 1917-06-26
Abstract: 116,175. Brand, C. E. June 26, 1917. Hoes; rakes.-A combination garden implement comprises a stamped, forged, or cast metal plate, the sides of which are formed as a rake A, a Dutch hoe B, an ordinary hoe C, and a drill-maker or clod-chopper D. In a modification, only three tools are arranged on the plate, and in another, a cultivator replaces one of the tools shown. The tools may be formed integral with the plate or attached to it by riveting. If the implement shown is stamped, the teeth of the rake may be rounded or twisted to permit of the soil passing between them. The socket for the handle is formed in or secured to the centre of the plate.
Patent GB-842347-A (GB)
Title: Apparatus for moulding hollow bodies of plastic
IPC: B29C33/04
Filed: 1959-03-17
Abstract: 842,347. Centrifugal moulding of hollow plastic articles. BEYER-OLSEN, K., and STEFFENSSEN, O. March 17, 1959 [Mareh 24, 1958], No. 9192/59. Class 87(2). A two-part mould 31, 32 for moulding thermoplastic or thermosetting synthetic resin hollow articles mounted in journals 34, 36, to enable it to be rotated about a horizontal axis by a motor 41, and in journals 25 to enable it to be rocked about an other horizontal axis by an adjustable linkage 46, 47, 48 is heated by jets in a tubular gas burner 6 fixed to the frame 2 carrying the mould. The mould may be cooled by a similar tube (see Fig. 1, not shown), which supplies jets of cold air or water.
Patent GB-652760-A (GB)
Title: Hydrocarbon fuel suitable for jet combustion purposes
IPC: C10L1/24
Filed: 1948-04-01
Abstract: A hydrocarbon fuel for use in a jet combustion engine comprises a distillate hydrocarbon oil and an addition of a thiophene material in an amount corresponding to 0.1 to 2 per cent of thiophene.  The thiophene material may be thiophene; thiophene hydrocarbon or hydrosulphide substitution products such as thiophenedithiol and mono-t-butyl thiophene; thiophene tar, obtained as a distillation residue in the production of thiophene from the reaction products of aliphatic hydrocarbons and sulphur; or extracts of thiophene tar with hydrocarbons such as n-heptane and isooctane.  The hydrocarbon fuel may be isooctane or any distillate from heavy gasolines to heavy gas oils, a fuel of kerosene boiling range being preferred. Specification 595,814 is referred to.
Patent GB-314775-A (GB)
Title: Improvements in electric furnaces
IPC: F27D11/02
Filed: 1928-03-28
Abstract: 314,775. Birmingham Electric Furnaces, Ltd., and Lobley, A. G. March 28, 1928. Resistance furnaces. - A rotatable structure comprises a heating chamber i and a two-compartment conveyer a, b, which enters the heating chamber at one end and is provided with charging and discharging apertures e, g, at the other end. The work travels through the compartments a, b, in opposite directions and a substantial length of the conveyer is situated externally of the heating chamber so that the fresh charge is effectively preheated by the outgoing charge. The compartments a, b, contain nickel-chromium spirals a<1>, c<1>, of opposite pitch.
Patent GB-624488-A (GB)
Title: Improvements relating to valves for controlling the flow of high pressure fluids
IPC: F16K41/10
Filed: 1947-04-08
Abstract: 624,488. Valve accessories. PIRELLI SOC. PER AZIONI. April 8, 1947, No. 9354. Convention date, Oct. 18, 1945. [Class 135] In a high-pressure fluid control valve, the valve element 8 is interposed between the inlet orifice 3 and the base of a cup-shaped, elastically flexible sealing member 12, the walls of which expand to give sealing contact with the wall of the valve chamber and with the periphery of the thrust member 16, when the valve is open, and are unstressed when the valve is closed. A stem 17, joining the element 8 and the member 16, is shorter than the hole in the member 12 in its unstressed condition, thus causing said member to seal about the stem.
Patent GB-579091-A (GB)
Title: Improvement in electrostatic condenser and dielectric therefor
IPC: H01B3/18
Filed: 1944-05-16
Abstract: Regenerated cellulose film is immersed in water at a temperature of at least 40 DEG  C. for at least one minute in order to remove substantially all soluble impurities and to render it suitable for use as a dielectric in electrical apparatus such as electrostatic condensers.  The treated film exhibits a low power factor and a low power factor-temperature coefficient which may even have a negative value between temperatures of 20-50 DEG  or 60 DEG  C.  The sustained hot-water treatment removes entrapped impurities which are not removed by rapid treatment or by cold water treatment.  The treated film may have a power factor at 25 DEG  C. and at 60 cycles of 0.2 to 0.4 per cent.  While the preliminary dialysis may take place in tap water it is preferable to use distilled water for the final stage of the treatment.  Preferably, the water is used at 80-100 DEG  C.  The elimination of impurities is facilitated by applying an electrical potential difference across the film and the dialyzing bath.  The film may pass in contact with an anode surface such as an aluminium drum.  The cathode may be a carbon rod placed directly in the bath or in a porous cup. As shown in Fig. 9, film 31 passes <PICT:0579091/IV/1> through tank 34 containing running tap water at 95 DEG  C. and then through two more similar tanks containing running hot water.  The film then passes through tank 46.  Distilled water at 95 DEG  C. enters section 47 and flows over the partition 48 into section 49. As the film emerges from the bath, excess water is removed by squeeze rollers 36.  The film is then fed over a series of smooth-surfaced aluminium rollers 37.  High velocity air blowers 38, containing heating elements 39 direct heated air on to both sides of the film.  The dried film passes through an electrically heated oven 42.  If the film is to be used as a dielectric separator it may be passed through a solution of polystyrene in xylol and ethyl chlorobenzene.  The resulting coated film is flexible, and moisture-proof.  The film may be cut and placed between plate electrodes or it may be wound as a continuous web between ribbons of foil-like electrodes to form a roll-type electrostatic condenser (see Group XXXVI).
Patent GB-182204-A (GB)
Title: Improvements in dough kneading machines
IPC: A21C11/14
Filed: 1921-03-29
Abstract: 182,204. Engel, R. March 29, 1921. Rolling - machines. - In machines for kneading and shaping dough rolls of the kind in which a kneading-arm oscillates in a circular path and a vertically reciprocated notching or marking device co-operates therewith, the mechanism is driven from a vertically-reciprocated shaft 1 uniformly driven and housed in a fixed tubular column 2. A bracket 9 is fixed to the shaft 1 and carries a fixed sleeve 13 and pinion 14 thereon and a rotatable flanged sleeve 10 on which is pivotally mounted a set of kneading-arms 12 operated by a segmental pinion 15. The sleeve 10 and each kneading arm 12 are given an axial oscillation by a pin on the fixed arm 8 engaging an inclined slot in the sleeve 10. The marking-device is a star-shaped member 17 carried on a rod 16 and operated by a lever 18 pivoted at 25 to a link 19, which is connected to a rod 20 carried by the fixed part 8. The rod 20 is held in the part 8 by a spring-pressed pawl 22 but is freed therefrom on the upward motion of the arm 9 by a cam-shaped rod 26 which withdraws the pawl, Fig. 5. When the rod 20 is held, the upward movement of the shaft 1 causes the downward actuation of the marking-device 17 and this is withdrawn by a spring 31 on disengagement of the pawl 22. The basins 6 for the dough are pivotally mounted in arms on a sleeve 5 and are given an intermittent rotation bv a pin 38 on a fixed arm 37 which engages vertical grooves 35 during the upward movement of the shaft 1 and curved communicating grooves 36 during the downward movement. The grooves 35, 36 are separated by a step 7'. The basins engage the edge of a cam disc 4 so shaped as to allow each basin to tilt and discharge its contents after passing the kneading point. Stamps or covers 42 are adjustably carried by the bracket 9 on spring- pressed sleeves 40, Fig. 5, and are so positioned that during the reciprocating movement they shape the dough before and after the stamping process. The dough basins may be removed from their pivoted sockets for cleaning by releasing springs 34 which have right-angled bent ends engaging slots in the stems of the basins.
Patent GB-781695-A (GB)
Title: Improvements in and relating to devices for applying tubular dressings
IPC: A61F15/00
Filed: 1956-03-26
Abstract: 781,695. Tubular dressing applicators. SCHOLL MFG. CO., Ltd., [formerly SCHOLL MANUFACTURING CO., Ltd.]. March 26, 1956 [March 25, 1955], No. 9407/56. Class 81 (2). Tubular dressings of varying sizes are applied to an arm or leg &c. by a device comprising a metal sleeve 1, Fig. 1, and a single length of wire formed with loops 3 connected at their inner ends by bends 4, Fig. 3, engaging a groove in the sleeve. When the device is not in use, the loops are held parallel to one another by a rubber ring 6. In use, the loops may be splayed apart by an expansion member 10 freely mounted on the end of a threaded stem 8. The dressing is fitted over the parallel loops which are then opened out to allow them to be placed over the limb to be dressed. In another device, independent loops 15, Fig. 4, have their free ends 16, Fig. 6, brought together and engaged in grooves 20 on one side of an externally-threaded member 13 engaged in a threaded sleeve 11. The free ends 16 are held in position by a rubber disc 17 mounted in a cupped disc 18 secured to the member 13 by screws 19. The loops may be expanded as required by holding them in one hand and rotating the sleeve 11 in the appropriate direction by the other hand.
Patent GB-622792-A (GB)
Title: Improvements in rotary pumps, compressors, motors or the like
IPC: F04B19/02
Filed: 1947-04-09
Abstract: 622.792. Rotary pumps or engines. MEGATOR PUMPS & COMPRESSORS, Ltd., and McCOMBIE, F. W. April 9, 1947, No. 9481. [Class 110(ii)] The pump or engine described in Specification 592,432 is modified to dispense with spring means to force the sliding surface 3 against the co-acting, fixed, surface 11. When the pump is stationary a cut-away edge 18, on the part 3 bears against a stop, such as the shaft 5, but during operation the pressure of fluid in the delivery chamber 1 causes the part 3 to bear against the surface 11, running clearance being provided between the shaft 5 and the edge 18. Shims 19 may be provided to allow adjustment of the surface 11 relative to the part 3.
Patent GB-854533-A (GB)
Title: Feed mechanisms of the screw type for machine tools
Inventor: DIXON REGINALD JOHN
IPC: B23G7/00
Filed: 1958-03-25
Abstract: 854,533. Screw-cutting machine details. WICKMAN Ltd. March 17, 1959 [March 25, 1958], No. 9504/58. Class 83 (3). In a screwing or like machine-tool, the tool-spindle feed-mechanism comprises a lead-screw on the spindle engageable with a nut rotated at a greater speed than the spindle when feeding the tool, and at a less speed during retraction, the spindle being prevented by a pivoted latch, from moving axially into engagement with the nut, which latch is released by a cam on the nut when the starts of the, threads on the nut and screw are in alignment whereupon a spring moves the spindle axially to engage it with the nut. The spindle 3 is driven from either gear-train 44, 46, or 45, 47, through clutch 49 splined on a sleeve 8, which is splined to the spindle. The latch 17, pivoted in a slot 15 in a collar 14 on the spindle, engages a cam 13 secured to the nut 10, and in one position of the cam, axial movement of the spindle is prevented, whilst a second position disengages the latch from the cam and allows the spindle to move to the left. The spindle is connected by bearings 25 to a slide 26 movable on guides 27, the slide being connected to a cam 32 by a lever 33 and rod 31, and to clutch 49 by a claw 50 and a rod 36. In operation with clutch 49 in the position shown in Fig. 1, the cam 32 rotates and moves rod 31 to the left, thus compressing spring 35. The shaft 40 rotates the nut 10 in an anti-clockwise direction viewed from the right of Fig. 1, through equal gears 42, 43, until the part 21 of the cam 13 lifts the latch 17 and allows the spindle 3 and slide 26 to be moved to the left by the spring 35, the screw 4 thus engaging the nut 10. The spindle 3 is rotated at a lower speed than the nut 10 by gears 44, 46 and is fed through the nut to cause the tool 6 to operate on the work 7, which rotates at the same speed as the nut 10. When the operation is complete, a projection 29 on the slide 26 engages nuts 52 on the bar 37, moving it to the left and disengaging the catch 38, thus allowing a spring 51 to engage the clutch 49 with the gear 47. The spindle 3 is thus driven at a greater speed than the nut 10 to move the spindle to the right, and when the screw 4 and nut 10 are disengaged, a tension-spring 30 separates them. The latch 17 then locks shaft 3 in this axial position. The cam 32 moves the rod 31, and consequently the slide 26, a further small distance to the right, and the projection 29 abuts nuts 54 and moves the rod 36 to engage gear 46 and clutch 49. The catch 38 locks the rod 36 by spring means (not shown), and on further rotation of the cam 32, the spring 35 is compressed ready for operation on a new workpiece.