baber/WOPTO huggingface dataset:
Patent GB-735615-A (GB)
Title: Condition sensing apparatus
IPC: G01T7/12
Filed: 1953-10-21
Abstract: 735,615. Burner control by radiation-sensitive device. MINNEAPOLIS-HONEYWELL REGULATOR CO. Oct. 21, 1953 [Nov. 19, 1952], No. 29110/53. Class 40 (3). In a device operating safety devices in response to extinction of a furnace flame, the sensitive element feeds an amplifier, its operating voltage being derived from the amplifier output so that when the element is subjected to the condition its operating voltage is reduced. The invention is described with reference to the operation of a safety cut-out by a Gieger counter if a burner 10 fails to ignite. When heat from the burner is required thermostat 80 completes the circuit of relay 19 completing the circuit of a fuel supply valve 12 and a transformer operated ignition apparatus 11. If the fuel is correctly ignited Gieger tube 39, the voltage supply across which is derived from a potentiometer 63 in the output of an amplifier comprising stages 37, 38, 39 feeds a series of pulses to the input of tube 37. These pulses are amplified in stages 37, 38 and allow condenser 58 shunting anode resistor 57 to charge to an extent greater than when no flame is present. The potential developed across this condenser controls the current flow in potentiometer 63 the drop across which determines the potential applied to the Gieger tube. Hence the sensitivity of the Gieger is progressively reduced until it feeds no more pulses to the amplifier when its operating voltage rises again. However relay 66 which is intended to energize when no flame is present at the burner is never operated when a flame is present. If the flame fails, the drop across the potentiometer 63 is sufficient to operate relay 66 completing the circuit of a heater 26 for a bimetallic element 28, which then opens relay 19 cutting off the fuel supply. The contacts of the bimetallic element must be manually reset.
Patent GB-1338139-A (GB)
Title: Screwdrivers and like tools
IPC: B25B15/06
Filed: 1971-06-22
Abstract: 1338139 Screwdrivers E COOKE-YARBOROUGH 12 June 1972 [22 June 1971] 29136/71 Heading B3N A tool, particularly a screwdriver, has a spindle or shaft 1 driven through helical screw threads of different pitches to provide different torques and rates of rotation of the spindle or shaft. In the embodiment of Figs. 1 and 2 a nut 2 has a shaft 3 to which handle 6 is slidably attached. The handle has a finger 14 that engages groove 13 and is held in the position shown by springs 12 engaging a rib 11. In operation downward pressure on the handle causes the nut 2 to rotate the shaft 1 at a relatively high speed. When the resistance to turning builds up the effect of springs 12 is overcome and pressure on the handle rotates the shaft 1 by interengagement of finger 14 and groove 13. This latter turning is at a relatively higher torque. Springs 5 and 12 return the parts to their original positions. In a modification the groove 13 is on the inside of the handle and the finger 14 is on shaft 3. A further modification, Figs. 5 and 6 has a nut 22 engaging a shaft 3. A pin 24 projects through the nut and engages in a groove 25 in a sleeve 23 and with a collar 26. In operation pressure on handle 6 causes nut 22 to rotate shaft 3. When the resistance to turning increases nut 22 is forced up sleeve 23. Collar 26 similarly moves up the sleeve and is caused to rotate. A ratchet ring 31 is positioned in handle 6 and is engaged by a pawl 32 on sleeve 23.
Patent GB-925496-A (GB)
Title: Multiturn potentiometer
IPC: H01C10/24
Filed: 1961-08-14
Abstract: 925,496. Variable resistors. CLAROSTAT MFG. CO. Inc. Aug. 14, 1961 [Sept. 28, 1960], No. 29234/61. Class 37. A multi-turn potentiometer comprises a hollow cylindrical casing, a resistance wire consisting of a plurality of continuous turns in the form of a helix concentric within the casing, a helical groove formed in the casing throughout its length, a contact member mounted on a driver member, a portion of the contact member being disposed within the helical groove whereby rotation of the driver member causes the contact member to move longitudinally and traverse the turns of the resistance wire. In Figs. 1 and 2 a moulded cylindrical casing 10 has a helical resistance wire 11 embedded in the internal surface. The casing 10 also has a helical groove 12 with the same pitch at the wire helix 11 but arranged to lie between the turns of the wire, Fig. 2. The casing 10 is contained within sleeve 15 which has end covers which carry stops 43, 44. The sleeve 15 has a terminal block which carries the connections 16, 17, 18, 19 to the potentiometer. A shaft 24 at the axis of the cylinder, carries an irregular insulating member 29 with a U-shaped metal channel 34, Fig. 3, moulded into it. A section of a disc 36 carries a wiper 38 which is electrically-connected 42 to a metal block 35 which rides in metal channel 34. The edge of disc 36 fits into groove 12 and rotation of shaft 24 causes the rib 30 to rotate the disc and move wiper 38 along the resistance wire.
Patent GB-1503132-A (GB)
Title: Device for spraying molten material in a granulating towe
IPC: B22F9/08
Filed: 1976-07-14
Abstract: 1503132 Spray producers DZERZHIN FILIAL VSESOJUZ NI I KONSTRUKT INST KHIMICHE MASHINOSTROENIA 14 July 1976 29284/76 Heading B2F [Also in Division C7]  A device for spraying molten metal in a granulating tower comprises a rose having a chamber 13 with a perforated bottom 14 and divided into a central chamber 18, and the annular chambers 16, 17, each communicating with a feed pipe 19, 20, 21, the upper portions of which 22, 23, 24 extend at different heights into a pressure vessel 15 and are provided with float valves 25, 26, 27, such that one or more of chambers 18, 17, 16 are supplied with molten metal depending upon the height of metal in the vessel 15. The granulating tower may be provided with three such roses (Fig. 3, not shown), the pressure vessel 15 of which is supplied with molten metal from a pressure tank (37) in like manner the supply of metal to the separate chambers of the spray device. The vessel 15 has a jacket 33 with an inlet &c. for a heat transfer agent.
Patent GB-667232-A (GB)
Title: Improvements in or relating to resilient supports
Inventor: HUTTON PHILIP CHARLES
IPC: F16F1/393
Filed: 1949-11-16
Abstract: 667,232. Resilient mountings. SILENTBLOC. Ltd., and HUTTON P. C. Nov. 14 1950 [Nov. 16, 1949], No. 29327/49. Class 108 (iii). In a resilient mounting of the kind d comprising inner and outer rigid tubular members with a bushing of rubber or the like disposed there between, the outer member has a frusto conical or the like inner surface, the inner member has an approximately cylindrical outer surface and the rubber bushing has a radial thickness, in its undistorted state, which is greater than the radial dimensions in which it lies so that it is radially compressed between the inner and outer members, in a manner causing, the inner circumferential portions of the bushing as a whole when not under load to be displaced in the same axial direction as one another relatively to the adjacent outer circumferential portions. In the arrangement shown, in which a rubber bushing 4, having an externally frusto conical portion and lower and upper flanges 6 and 7 respectively, is radially compressed between an inner member 10 and a frusto conical and flanged outer member 1, the initially flat end faces of the bushing 4 in its undistorted state assume, in the assembled mounting, convex and concave surfaces 8a and 9a respectively. Under axial loading, the surface 8a is progressively engaged by a load carrying member 13. Rebound of the member 10 is checked by an abutment 14 secured thereto, which engages the lower flange 6. The diameter of the member 10 is greater than that of the bushing 4, in its undistorted state, in which the member 10 is forced after insertion of the bushing into the member 1. The bushing may or may not be radially compressed during insertion into the member 1 and may be bonded to the inner and or the outer members. In another arrangement, Figs. 4 and 5 (not shown), a cylindrical rubber bushing of initially larger diameter than that of its final form and having an upper flange only, is bonded to a cylindrical outer member, having a flange at its upper end. The bushing may also be bonded to the tubular inner member and the outer member is then converted to frusto conical form by swaging or the like.
Patent GB-834083-A (GB)
Title: Fuel vaporizer for a gas turbine engine
IPC: F23R3/32
Filed: 1957-09-18
Abstract: 834,083. Gas-turbine plant. AVCO MANUFACTURING CORPORATION. Sept. 18, 1957 [Oct. 2, 1956], No. 29363/57. Class 110 (3). [Also in Groups XI and XII] A combustion chamber of a gas-turbine engine comprises an inner annular flame tube and an outer annular air casing, air and fuel being admitted to the interior of the flame tube by means of a number of vaporizer units of T-shape disposed in circumferential assembly at the upstream end of the flame tube. The combustion equipment shown in Fig. 2 is disposed around the turbine assembly 11, 14 and comprises an annular flame tube having side walls 15, 16 and a closed upstream end wall 17 of U-section, disposed within an outer casing 18. Air under pressure from a compressor enters the space 19 between the flame tube and the outer casing and some enters the flame tube through scoops 21. Combustion products discharge from the chamber and act on the turbines 11, 14. A T-shape vaporizer is shown in Fig. 4 and comprises a cylindrical base portion 25 which is secured to the curved end wall 23 of the air casing, the base portion 26 having an air inlet opening 35 formed at one side thereof and having secured thereto a tubular shank 26 which projects into the combustion chamber. At the end of the shank 26 remote from the base portion 25 is disposed a transverse tubular cross-piece 28, at the ends of which are further tubular projections 29 disposed parallel to the shank 26. A division plate 37 is disposed within the shank 26 extending across the cross-piece 28, a target or impingement surface 38 being disposed at the upstream end of the division plate 37. The ends of the tubular portions 29 terminate in restricted outlets 39. A fuel injector 32 is disposed within the base portion 25 and directs fuel to impinge on the surface 38 whereby it is mixed with air entering through the inlet 35 from the jacket space around the flame tube. The air and fuel mixture is divided into two equal streams by the division plate 37, the vaporized fuel and air mixtures discharging from the outlets towards deflectors 42 mounted on the flame tube wall 17. Air inlet openings 43 are provided adjacent the deflectors. In a second embodiment, the combustion equipment is of the straightthrough flow type as distinct from the contraflow type shown in Fig. 2 and T-shaped vaporizers as described above are mounted in a transverse plate disposed across the upstream end of the annular flame tube.
Patent GB-392910-A (GB)
Title: Improvements in portfolios, wallets, folders and the like holders and containers
IPC: B42F7/02
Filed: 1931-10-22
Abstract: 392,910. Filing papers. OTTINGER, N., 31, Nassau Street, New York, U.S.A. Oct. 22, 1931, No. 29381. Addition to 381,571. [Class 146 (i).] The portfolio, wallet, or like holder according to the parent Specification is modified by the provision of folding or interlocking flaps 6, 11 attached to the blank which forms the obliquely cutaway side wall of the retaining pocket so that the container so formed can be opened out flat. The flap 6 folds upon the body wall 5 and interlocks with the flap 11 which folds about a line 13 by means of the flap 11a. The closure flap 7 has an integral part 16 which folds about lines a, b, the part 16 being inserted in the pocket while the part 32 overlaps the edge 8 which is thus held between the parts 23, 16. The end closure flap 10 is then folded over and interlocked by means of the flap 10a with the flap 7. A flap similar to the flap 7 with its integral part 16 may be provided in conjunction with a holder formed as in the parent Specification and having the pocket permanently formed as by gluing.
Patent GB-1302949-A (GB)
IPC: F16L27/04
Filed: 1970-06-24
Abstract: 1302949 Pipe joints G W WALTON 24 June 1970 [26 Sept 1969] 29394/72 Divided out of 1302948 Heading F2G The description is the same as that relating to Figs, 7 and 8 of Specification 1,302,948 but the claims are directed primarily to a ball- and-socket joint for a pipe-line with a seal between the ball-and-socket, and at least one trunnion positioned in an opening formed radially in either the ball or the socket, the trunnion being movable into a second opening formed in either the socket or the ball, respectively, so that the ball-and-socket can move relatively only about the axis of the trunnion; alternatively the trunnion may be moved out of the second opening to allow relative movement of the ball-and-socket about at least one other axis.
Patent GB-366468-A (GB)
Title: Improvements in grinding or abrading machines
IPC: B24B5/04
Filed: 1930-10-02
Abstract: 366,468. Centreless grinding. CHURCHILL MACHINE TOOL CO., Ltd., Broadheath, near Manchester, and ASBRIDGE, H. H., Claremont, Washway Road, Ashton-on-Mersey. Oct. 2, 1930, No. 29482. [Class 60.] Guides and rests.- In a grinding-machine having peripherally opposed grinding and regulating wheels the work is supported between the wheels by an arbor carried by a support to which is imparted movement in the direction of the axis of the work. The arbor d, which is a working fit in the work-piece c, is carried by a support e slidable on a slide member f; the member f is reciprocated on a base member by a connecting-rod h and crank i or by hydraulic or pneumatic means. The outer end of the arbor may be supported by a movable strut j ; the arbor may be of the socket type for grinding solid articles having parts of different diameters. Specifications 360,964, 366,466, and 366,467 are referred to.
Patent GB-383727-A (GB)
Title: Improvements in and relating to the manufacture and production of acetic anhydride
IPC: C07C51/56
Filed: 1931-10-24
Abstract: Acetic anhydride is produced by passing the vapour of acetic acid through a molten metal, upon or near the surface of which is a layer of a catalyst such as titanium oxide, aluminium oxide, titanium phosphate or zinc phosphate.  The catalyst may be supported near. The metal bath may be lead, zinc or an alloy thereof, and may be contained in an externally heated graphite crucible: (1) vapour of glacial acetic acid is passed through molten lead at 525 DEG  C. upon which floats titanium oxide; (2) the vapour is passed through molten lead at 500 DEG  C. upon which floats alumina; in this case the condensate contains 6 per cent of anhydride and 10 per cent of acetone.  Specifications 194,719, 230,063, 272,951, [all in Class 2 (iii), Dyes &c.], and 369,710 are referred to.
Patent GB-805674-A (GB)
Title: Production of organo-silicon compounds
Inventor: ANDERSON ROBERT CRAIG
IPC: C07F7/12
Filed: 1956-09-28
Abstract: Alkyl silanes and/or alkyl halosilanes are prepared by reacting silica, which may be in the free form or combined in the form of silicates, with an alkyl aluminium halide.  Suitable silicas are silica gels, fume silicas such as the "Aerosils," and diatomaceous earths such as kieselguhr, and natural and synthetic silicates such as bentonite, talc, china clay, albite felspar, olivine, wollastonite, mica, chrysotile asbestos, commercial anhydrous sodium silicates and residues obtained by extracting metal oxides from silicates.  The silica is preferably noncrystalline and of high specific surface area, and is preferably heated before use.  Suitable aluminium compounds are methyl aluminium dichloride, methyl and ethyl aluminium sesquichlorides, dimethyl aluminium chloride and iodide, and ethyl aluminium sesquibromide and sesquiiodide.  Fluorides may also be used.  The propyl and butyl derivatives may be used but give rise to olefinic by-products.  Aluminium trialkyls and aluminium halides may be present in the reaction mixture.  The alkyl aluminium halide may be formed in situ by the reaction of an alkyl halide and aluminium (which may be in the form of an alloy), in which case a catalyst is preferably employed, e.g. copper and copper alloys, aluminium halides, alkyl aluminium halides and compound aluminium halides.  The reaction, which may be batch or continuous, is effected at temperatures of 125-500 DEG  C., preferably under pressure, which may be autogenous.  A solvent is not normally used but, if desired, high boiling hydrocarbons may be present.  Mol. ratios of Si:Al of from 1:2 to 4:1 are generally employed.  Numerous examples are given in which there are prepared mixtures of silanes containing ethyl, methyl, halogen and hydrogen radicals attached to silicon, including methylethylsilanes.  Also prepared (Example 3), by treating the reaction mixture with water, is a mixture of tetraethylsilane, triethyl silanol and ethyl siloxanes.
Patent GB-204563-A (GB)
Title: Improvements in or relating to the heads of cycles and motor cycles
IPC: B62M7/10
Filed: 1922-10-31
Abstract: 204,563. BlÚcourt, J. P. P. de. Oct. 31, 1922. Collapsable cycles; heads.-In order to enable the front forks and handle-bar to be detached from the main frame for storage or for the purpose of substituting a front wheel frame carrying a light driving-motor for the ordinary front wheel frame, the tubular steering-head is made in two separable parts, one of which is fast with the main frame, the two parts being connected together by a clamping device to hold the front wheel frame in operative position. In the form shown in Figs. 2 and 3, the steering stem 1 is rotatably mounted in an outer tubular head 2 having a longitudinal slot 3 to receive a junction piece 10 of semi-circular cross-section on the main frame, the parts 2, 10 being held together by hinged clamping-jaws 4, one of which carries a pivoted clamping-bolt adapted to engage the other jaw and to be secured by a nut 15. In a modifica,tion, the outer tubular head is formed in two parts hinged together so as to open and receive an inner tubular head, the two hinged parts being then clamped together by a pivoted link carrying a locking-screw.
Patent GB-152884-A (GB)
Title: Improvements relating to jacquard machines for looms for weaving
IPC: D03C3/24
Filed: 1919-11-29
Abstract: 152,884. Ross, H. R., and Cunningham, R. Nov. 29, 1919. Jacquards. - In single-acting or double-acting loom jacquards having a repeat cylinder a, Fig. 1, and a cross-border cylinder and respective sets of needles a<1>, b<1>, the needles a<1> directly operate the hooks d whilst the needles b<1> operate levers f, Figs. 1 and 4, which can readily be inserted from above on fulcrum bars g between the needles a<1>, b<1> and which have cranked portions f<1> surrounding the hooks d. The levers are thus unaffected when the needles a<1> are operated, but are rocked when the needles b<1> are operated and then operate the respective hooks, the levers having doubled portions f<2> engaged by the eyes of the needles b<1> and cranked sidewards, as shown.
Patent GB-711847-A (GB)
Title: Improvements relating to sound reproducing and visual display apparatus
IPC: G09F27/00
Filed: 1950-12-06
Abstract: 711,847. Changing signs. PONTIFEX, C. E. C. Dec. 6, 1951 [Dec. 6, 1950], No. 29868/50. Drawings to Specification. Class 3(1) [Also in Groups XXXVIII and XL(c)] A display apparatus showing in succession different articles or pictures, is combined with a reproducer providing appropriate sound accompaniments, and control means are arranged so that, a controllable time after the cessation of the sound accompaniment relating to the particular display, the apparatus changes to the next display in readiness for the corresponding sound accompaniment. The control means, which includes a thermionic valve circuit incorporating a resistor-capacitor combination (see Group XL(c)) may, in addition, actuate record-changing apparatus carrying the sound accompaniment, this latter feature being, per se, the subject of Specification 711.897, [Group XL(c)].
Patent GB-283565-A (GB)
Title: The manufacture of chemotherapeutical compositions
IPC: A61K31/575
Filed: 1927-11-08
Abstract: 283,565. Chemical Works, formerly Sandoz. Jan. 15, 1927, [Convention date). Medicines for internal use. - Disazo dyes prepared from one molecular proportion of a tetrazo compound of the diphenyl series and two molecular proportions of an aminonaphthalene disulphonic acid, or an aminonaphthol disulphonic acid, in which the sulpho groups are in the 3- and 6-positions of the naphthalene-nucleus, are mixed with bile acids or their salts. The preparations possess a destructive action on certain blood parasites and are particularly applicable in the treatment of certain diseases of domestic animals. According to examples Chloramine blue 2B or Trypan blue is mixed with sodium cholate in water or water added, and the solution evaporated to dryness. The Specification as open to inspection under Sect. 91 (3) (a) refers to the natural acids of oxbile, glycocholic acid, choleinic acid, desoxycholic acid, taurocholic acid, cholalic acid, and apocholic acid as bile acid components, and includes examples according to which chloramine blue 2B is mixed with sodium taurocholate and glycocholate, Trypan red with sodium cholate, and Trypan blue with sodium choleinate and desoxycholate. This subject-matter does not appear in the Specification as accepted.
Patent GB-248855-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/06
Filed: 1924-12-15
Abstract: 248,855. Hesketh, B. Dec. 15, 1924. Condensers of the moving plate type have their plates provided with shaped mounting holes and carried by locking members so shaped that when the latter are passed through the mounting holes and turned, the plates are securely locked on the locking members. The spindle 1 carries a locking member 2 of circular section having three cut-away parts 3 and slotted at 4 to the same radial depth as the parts 3, so that, when the moving plates 5 are threaded on the spindle and turned, the projections 6 are held by the slots 4. Fig. 3 shows a condenser having two sets of triangular fixed plates 7, each co-operating with sets of moving plates arranged at 180‹ with respect to one another, the arrangement allowing simultaneous adjustment of capacity in two circuits having the spindle 1 as a common point. The plates 7 are held at their outward corners by locking members 2 and at their other corners by grooved ebonite or like bars 8, the bars and members 2 being held by screws 9 in coverplates 10 of ebonite or the like, The coverplates carry a bearing 11 for the spindle 1 and terminals 12 connecting with the fixed and moving plates respectively by the members 2 and bearing 11. The condenser is preferably enclosed by side walls (not shown) or ebonite or the like. The plates may be clamped on the locking members by means of a tool, such as is shown diagrammatically in Fig. 4, which forces the edges of the slots against the plates. The holes in the plates and the section of the locking member may be varied, and the requisite section may be given to the spindle itself so that the latter may form the locking member. Further, ther slots may be staggered so that the plates do not directly overlie one another and follow a law other than a straight-line law, for example, a square law. Further, the arrangement of Fig. 3 may be adapted for more than two circuits, each set of fixed plates having an insulated locking member.