baber/WOPTO huggingface dataset:
Patent GB-779537-A (GB)
Title: Method of producing sulphuric acid by the contact process
IPC: C01B17/76
Filed: 1955-06-07
Abstract: In the production of sulphuric acid from air and elementary sulphur, or material containing elementary sulphur, by the contact process, the air required in the process and the sulphur trioxide produced in the contact reaction being passed respectively through a drying tower and an absorption tower, both of which are sprayed with sulphuric acid from a single forerun container and from both of which acid is recycled to the forerun container, the amounts of water removed from the air by the acid in the drying tower is insufficient to maintain constant the concentration of the acid in the forerun container at the value required for introduction into the absorption tower, the balance being added to the acid fed to the drying tower.  In the example, the concentration of acid from the absorption and drying towers is 99.3 and 97.5 per cent respectively, giving a concentration of 98.5 per cent in the forerun container.  The concentration of acid sprayed into the drying tower is reduced to 98.0 per cent by the addition of water.
Patent GB-542338-A (GB)
Title: Improvements in manufacture of leather articles
IPC: C14B1/00
Filed: 1940-11-12
Abstract: 542,338. Boots &c. lasting; brassiers; gloves; hats. MARX, G. S. Nov. 12, 1940, No. 16401. Convention date, Oct. 12, 1939. Addition to 541,000, [Group XVI] [Classes 17 (i), 63 and 141] [Also in Groups XVI and VIII] Shaped leather articles such as boot and shoe uppers, slippers, hats, brassieres and gloves are moulded from a sheet of leather which has not been dried after a chrome tanning treatment and the process is carried out by holding-means which is applied circumferentially to grip the sheet against an aperture in a plate while the sheet is forced by a last or frame through the aperture, the shaped article being dried while in contact with the frame so as to cause it to preserve its shape. For making a shoe upper the wet leather 5' is pressed by a last 8<SP>1</SP> through an aperture 2<SP>1</SP> in a table 1<SP>1</SP> against which the sheet is slidably held by a ring structure 7<SP>1</SP>. The last is lowered to a position below that shown in Fig. 2 and its lower surface presses the leather into contact with a block 9. The leather is then bent inwards over the sole portion of the last by plates 13 and similar lateral plates arranged under the table 1<SP>1</SP> and wires 15 connected to these plates at positions corresponding to the toes and heels. The block 9 is then raised by lever mechanism 11 and a supplementary holding-ring 12 is then caused to grip the sheet 5'. The flange is then trimmed by means of a knife 17, which may be shaped to conform to the outer periphery of the last, or may be a cutter traversed by driving means 18 on the ring 12. A clamp 19 may then clamp the cut edge while the shaped upper dries. Finally the block 9 is removed and the top opening of the shoe formed by cutting. Gloves are made by forming two sections having substantial mirror image relationship by a process similar to that described and subsequently joining the sections.
Patent GB-766793-A (GB)
Title: Manufacture of composite sheets or articles made from fibrous material
Inventor: SANDERSON HAROLD
IPC: B27D1/08
Filed: 1953-06-15
Abstract: 766,793. Composite; hand tool handles. , SANENWO.OD PRODUCTS. Ltd. June 8, 1954 [June 15, 1953], No. 16420/53. Classes: 61 and 145 [Also in Groups VIII and XIV] Composite sheets or articles of fibrous material are made by saturating dry veneer-like strips or sheets with an aqueous solution of a plastic synthetic resin material, drying the saturated strips, and forming a stack consisting of the saturated strips, of dried veneer strips that have not been saturated with the aqueous solution and of preformed films of synthetic resin having a phenol, cresol of urea basis or of paper, cotton or other fabric sheets impregnated or coated with the synthetic resin, one of the films or sheets always being interposed between adjacent non-saturated strips; the stack is subjected to pressure between dies heated to about 165‹C. so that the water in the solution is converted to steam, the dies are retracted from each other to allow surplus steam to escape from the pressed mass and pressure is again applied for a longer period than the initial pressing in order to consolidate the mass. The plastic material may consist of a solution of 2“ lb. phenol, 2 lb. 40 per cent formaldehyde and 0.7 lb. sodium hydroxide boiled with a little water, cooled and then mixed in the proportion of 20 1b. of water to 9 1b. of solution or 40 per cent by volume of plastic material and 60 per cent of water. One or more layers of wire mesh may be included in the superimposed strips or exposed metal inserts may be placed on the stack of strips before pressing. Fig. 1 shows a domestic tray composed of one sheet of wood 16 saturated with the plastic material, two adjacent non-saturated sheets of wood 17, 18 with a layer of impregnated cotton fabric 20 and a layer 19 of wire mesh. Fig. 3 shows a table knife blade 26 gripped in jaws 27 with the tang 28 positioned centrally in the cavity of a pair of dies 29, 30 and within a mass 31 of the composite material, the heat and pressure of the dies forming the handle and bonding it to the tang; a roughened surface, or holes 33, may be provided on the tang to ensure adherence of the handle. The Provisional Specification also de. scribes a process which omits the non- saturated sheets and preformed films or impregnated fabric sheets and is similar to that claimed in Specification 702.326 [Group VIII] but adds the features of drying the sheets initially to remove all natural moisture, drying the saturated sheets to about 10 per cent moisture-and using a pressure of about 2200 lb. per sq. in. for consolidating the stack. Specification 596,256 (Group XXII] also is referred to.
Patent GB-969176-A (GB)
Title: Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators
IPC: F22B37/42
Filed: 1963-04-26
Abstract: 969,176. Forced flow steam boilers. BROWN BOVERI/KRUPP REAKTORBAU G.m.b.H. April 26, 1963 [April 26, 1962], No. 16496/63. Heading F4A. In a supervisory apparatus for detecting and, if desired, initiating the disconnection of a damaged tube system in a forced flow steam boiler comprising a plurality of parallel-connected tube systems, an electrical circuit is associated with each system, each circuit including means for producing a potential proportional to a measured variable, for example, flow rate or pressure, of the associated system and a potential measuring instrument, the circuits being connected in parallel so that a defective system can be located by a fall in the potential reading of the associated instrument relative to the others. Fig. 1 shows the apparatus applied to a generator with four tube systems. Flow rates in the systems which are normally equal are represented by voltages generated by variable sources Q 1  . . . Q 4 . The sources are respectively series-connected with diodes D 1  . . . D 4 , each diode being in parallel with a respective high resistance voltmeter J 1  . . . J 4 . A voltmeter J 5  is connected across the parallelconnected circuits. If a tube in the system associated with circuit 4, for example, becomes defective the potential of source Q 4  increases and since diode D 4  is connected in the direction of flow the reading of instrument J 4  falls whilst those of instruments J 1  . . . J 3  rise to indicate in each case the voltage difference of the sources. The instrument readings thus indicate the location of the defective tube system. The absolute value of the potential in the faulty measuring circuit is indicated at J 5 . In a modification the pressures in the tube systems actuate variable potentiometers to generate the voltage signals and limit switches actuated by these signals initiate optical or acoustic warning signals and, if desired, automatically disconnect the faulty tube system. The invention is of particular application to a steam generator located in the same vessel as a nuclear reactor and heated by the reactor coolant.
Patent GB-544107-A (GB)
Title: Improvements in electric lighting fittings
IPC: F21V17/00
Filed: 1940-11-14
Abstract: 544,107. Mounting reflectors. BRITISH THOMSON-HOUSTON CO., Ltd., and WIDNALL, F. Nov. 14, 1940, No. 16500. [Class 75 (ii)] A reflector 6 is secured against an annular metal and asbestos heat baffle 9 on the crown member 2 of an electric light fitting by an annular split ring 7 of wedge-shaped cross-section or fitted with wedge shaped lugs 8 which engage between a flange 5 on the reflector and the inwardly turned edge 4 of a depending rim 3 on the crown member 2. Specification 489,652 is referred to. According to the Provisional Specification the reflector may be provided with a channel-shaped rim surrounding an outwardly extending flange on the crown-member and secured to it by an outwardly expanding locking rim.
Patent GB-555929-A (GB)
Title: Improvements in or relating to the electrodeposition of tin or tin lead alloys
IPC: C25D3/60
Filed: 1942-11-23
Abstract: 555,929. Electrodeposition of tin and tin-lead alloys. STEVENS, A. H. (Leek, N. L.). Nov. 23, 1942, No. 16544. [Class 41] Tin and tin-lead alloys are deposited from an acid solution in the presence of a sulphone of phenol, cresol, resorcinol, or naphthol. The acid may be selected from the mono- and polysulphonic acids of benzene, phenol and cresol, the related chloro- and nitro-sulphonic acids, fluosilic or fluoboric acids, benzene disulphonic acid being preferred. The sulphone is preferably the phenol compound (C 6 H 5 OH) 2  SO 2 .
Patent GB-256935-A (GB)
Title: Improvements in or relating to electrical distribution systems
IPC: H02H3/40
Filed: 1926-07-01
Abstract: 256,935. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Crichton, L. N., and Goldsborough, S. L.). Aug. 13, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cut-out arrangements.-The protective relays 6 of a, high voltage transmission circuit 2 have their voltage windings 8 energized through a potential transformer 10 from the low-tension side of a. load transformer 5 thereby obviating the use of high voltage instrument transformers. Owing to the impedance drop in the transformer 5 it is necessary to correct the voltages derived from the transformer 10 in order to obtain a voltage exactly proportional to the voltage of the circuit 2. This is effected by current transformers 11 impressing, through transformers 12, 13, current upon impedances each comprising a resistor 15, these impedances being adjusted so that the voltage drop there across is. proportional to that in the transformer 5. These impedances are included in circuit between the secondaries of the transformer 10 and the windings 8. The current windings 7 of the relays are energized in the usual manner from current transformers 9 and closure of any relay causes opening of the circuit-breaker 3. The circuit 2 is supplied from a low voltage substation 4 and a generator 1. The relays may be of the type described in Specification 216,531. In a modification, a second set of relays is used to afford protection against ground faults, their voltage windings are similarly energized, but the impedance 14, 15 are energized by current transformers placed in circuit with the primary windings of the load transformer instead of in the line conductors. In the case of a load transformer being provided with a third winding for the supply of another circuit such as a local circuit a double compensation is effected by providing current transformers in circuit with both the primary and the main secondary windings, each current transformer supplying an impedance 14, 15, and corresponding pairs of impedances being connected in series.
Patent GB-334218-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1929-05-29
Abstract: 334,218. Automatic Telephone Manufacturing Co., Ltd., Gillings, C., and Rice, T. G. May 29, 1929. Automatic exchange systems. -A finder switch, taken into use over a chain start lead, is provided with a plurality of sets of wipers, the'set to be used being determined before the switch starts hunting. Two groups of switches serve two groups of lines, one group over each wiper set, and a first group switch is called upon to serve the second group only if all the switches in that group are engaged. In the embodiment described a Strowger type switch with two sets of wipers serves two groups of lines. Hunting is controlled over one wiper set only, a relay connected up prior to the commencement of hunting determines which set of wipers is to be used. A line served over the upper wiper set is indicated in Fig. 1. When a call is originated LR operates, removing the earth from the contact of the calling line and energizing 1A. Relay 1A operates D (Fig. 1) to connect up the upper' wiper set and energizes relay A which in turn connects up relay B to connect holding earth to the test conductor. Relay 1A also places earth on the contact of the level calling in bank VA (Fig. 3). Relay G pulls up (via V and R) completing a circuit for the vertical magnet VM, and G and VM interact until the wiper VW reaches the marked bank (the first in the example given) when T operates and locks, connecting relay G to the rotary test wiper and changing over to the rotary magnet RM. Relay G remains operated in series with T until RM operates to step the wipers on to the first rotary contacts. Relay G and magnet RM then interact until the calling line is reached when G fails to pull up and H, being no longer shorted, operates and switches through the calling line. Relay CO pulls up, removing the battery connections from the calling line and releasing 1A. Relay HR pulls up and is held throughout the conversation. The relay HR connects the start and discriminating leads S and D, Fig. 3, on to the next finder in the group and when all the finders in the group are busy a chain circuit of leads S and D is completed and relay AB is operated. Should another call now be made in the A group, relay AW operating in series with one of the relays 1A - - 10A will energize AY connecting the start and discriminating leads to the B group switches and operating relay LH to common the vertical banks VA and VB. The call then proceeds as previously described. Relay AY breaks the circuits of relays 1B - - 10B to prevent a " B " group call from seizing a finder whilst the vertical banks are joined. Similarly the B group lines can use the A group switches but in this case, as relay D, Fig. 1, is not operated, relay BY connects up the start lead only. To provide a minimum of vertical hunting movement the multiple of the finder switches is " slipped." A switch hunting for predetermined potential is also described. Specification 333,928 is referred to in the Provisional Specification.
Patent GB-594211-A (GB)
Title: Improvements in and relating to lathes and the like
IPC: B23Q3/12
Filed: 1945-06-29
Abstract: 594,211. Mounting chucks. DEAN, SMITH, & GRACE, Ltd., PRIDGEON, H. and BINNS, A. June 29, 1945, No. 16591. [Class 83 (iii)] The spindle-nose of a lathe &c. is provided with a number of radial bores to receive spring- loaded eccentric-headed plungers registering with corresponding radial bores in a chuck, whereby rotation of the plungers locks the chuck to the machine-spindle. The nose is flanged as at 2 and houses the plungers 4. The chuck body 11 is spigoted on the spindle and has an annular extension 13, which may be integral with the body, provided with radial bores corresponding to the eccentric heads 7 of the plungers. Each plunger is formed with a helical recess engaged by a snug 9 located in the flange of the spindle-nose,. which causes the plunger when rotated to rise and engage the corresponding hole in the chuck. A button 10 relates the chuck to the spindle-nose to facilitate alignment of the radial bores.
Patent GB-978641-A (GB)
Title: Improvements relating to vessels and supporting structures therefor
Inventor: CLIFFORD FRANK
IPC: B65D90/12
Filed: 1961-05-08
Abstract: 978,641. Tanks &c. WHESSOE Ltd. June 18, 1962 [May 8, 1961], No. 16607/61. Heading E1T. In a structure comprising a vessel 1 having an internal load 7 the load 7 is mounted on a ring 8 supported within the vessel by support members 9 whilst the vessel itself is supported in an elevated position by like support members 6. The support members 6, 9 are arranged in alignment as shown, are secured to the ring 8, vessel 1 and rigid foundation 4 by pivoted means, see Fig. 2 (not shown) and are collectively arranged on the surface of a cone having its apex at or near to the centre of gravity of the unit 1, 7. For details of the support members Figs. 3, 4 and 5 (not shown) should be referred to. Specifications 813,621, 813,622 and 813,624 are referred to.
Patent GB-111331-A (GB)
Title: Improvements in Slabs for General Building Purposes.
Inventor: GRAY JAMES
IPC: E04C2/32
Filed: 1916-11-22
Abstract: 111,331. Gray, J., White, H. R., and Hewer, F. Nov. 22, 1916. Piling.-In light slabs for piling &c., reinforced with steel, the reinforcements comprise longitudinal members A, Fig. 1, in different planes, bonded together by triangulated lateral members B, the cement or pitch concrete, gypsum, or glass conforming to the planes of the lateral reinforcements. The sides and ends may be suitably shaped for jointing. Jointing faces of the slabs may be grooved to receive an asbestos cord, and the joint may be provided with a capping. Flanges may be provided, held together and to an angleiron stringer by bolts E, Fig. 6, cast in bosses.
Patent GB-254748-A (GB)
Title: Method of producing groats from the soft endosperm of grains of cereals
IPC: A23L7/10
Filed: 1926-07-03
Abstract: 254,748. Bartmann, L. July 3, 1925, [Convention date]. Moulds.-To form groats the paste obtained by steeping grain and then expelling the endosperm from the husks is forced into one or several layers of metal gauze or into perforations in metal sheets and is dried therein. After drying the sheets are beaten or otherwise treated to shake out the shaped particles of endosperm.
Patent GB-400883-A (GB)
Title: Means for mounting stamps, snapshots, postcards and the like in albums or the like
IPC: B42F5/06
Filed: 1933-06-13
Abstract: 400,883. Photograph &c. mounts. FRAMPTON, C. H., 11, Friars Street, Ipswich, Suffolk. June 13, 1933, No. 16824. [Class 11.] Stamps, photographs, postcards, &c., are mounted in albums in such a way that they are transferable from one side to another and the mounting means are invisible when the stamp &c. is being viewed. For stamps, wedge-shaped mounts of thin paper are used, the mounts being gummed along the top edge c, Fig. 3, attached to the back of the stamp d by the gummed portion and then folded over and passed through a pair of parallel slots in the album page, in such a manner that the folded-over gummed portion does not overlap the top slot but the tapering shank is wedged in the top slot. For photographs &c. the mounts are larger and made of stouter paper or card, and the lower slot in the album page is shorter than the upper slot.
Patent GB-310698-A (GB)
Title: Improvements relating to smoothing irons
IPC: D06F75/02
Filed: 1928-06-11
Abstract: 310,698. Kirby, J. I. June 11, 1928. Portable spirit stoves. - In an iron provided with a loosely fitting cover 5 which on inversion of the iron as shown serves as a support for a heater 7, the legs 3 supporting the handle 6 are provided with apertures 11 to receive a pair of curling irons. The heater may comprise a porous block soaked in methylated spirit.
Patent GB-492074-A (GB)
Title: Improvements in or relating to sealing devices for rotating members
IPC: F16J15/40
Filed: 1937-06-17
Abstract: 492,074. Stuffing - box substitutes. MERCIER, J. June 17, 1937, No. 16854. [Class 122 (v)] In a sealing device for rotating shafts comprising two sealing members 2, 3, one or both of which are movable relatively to the other and enclosing a chamber 7 containing lubricant, a projection 4 on one member projects into a low pressure space 10 whereby high external pressure acting in the full crosssection of one of the members results in a higher pressure per unit area exerted by the lubricant. The shaft may be in two parts 21a, 21b, connected respectively to the two sealing members or may be secured to one member and slidable through the other in which case the shaft takes the place of the projection 4. Alternatively the shaft may pass through both sealing members, one of which is stationary and the other movable. In this case a number of projections 4 are provided around the shaft on one member to engage hollow projections on the other. The projections may be replaced by a single annular projection on each member. The sealing members may have sealing lips of the kind described in Specification 473,449. Specification 434,000 also is referred to.
Patent GB-883194-A (GB)
Title: Improvements in drawing instruments having straight edges or guide edges for drawing pens
IPC: B43L7/00
Filed: 1959-05-19
Abstract: 883,194. Drawing instruments. HUGHES, H. R. May 19, 1960 [May 19, 1959], No. 16861/59. Class 97(3). A ruler 1 or other instrument having a guide edge to enable a pen to draw straight or curved lines has a flat surface on which the instrument is supported and an outwardly projecting raised guide edge 2 the underside 3 of which is inclined upwardly away from the guide edge 2 so that it will retain by surface tension or capillary attraction any ink which floods from the pen. The ruler 1 may be formed from a flat metal strip, stiffening ribs 6 being provided one of which may be shaped to form finger engaging ribs between the ends of the ruler 1. The guide edge 2 may be upwardly curled, as shown, or, if the ruler 1 is of plastics material, may be left plain.
Patent GB-964071-A (GB)
Title: Improvements in or relating to hay balers
IPC: A01F15/10
Filed: 1963-04-30
Abstract: 964,071. Baling machines. SPERRY RAND CORPORATION. April 30, 1963 [Jan. 15, 1963], No. 16905/63. Heading B5F. In a hay baler comprising a reciprocable carriage 22 having a feed finger 26 for feeding hay across a platform 20 and through an opening 16 in the side of a bale case 10, the feed finger is adjustable vertically to vary the spacing from the platform in accordance with the crop to be handled. The carriage has two adjustable fingers 26 which are curved as shown and secured by releasable clamps 32 to a transverse shaft 24. Stops 40, 41 limit pivoting of the shaft 24. Further feed fingers 27 are pivoted on a shaft 25, both pairs of fingers being spring loaded to the positions shown.
Patent GB-529833-A (GB)
Title: Improvements in and relating to a door-holding and door-checking device
IPC: E05C17/20
Filed: 1939-06-09
Abstract: 529,833. Stays for hinged articles. SCHONITZER, R. I. June 9, 1939, No. 16917. [Class 65 (i)] A stay for a car door &c. comprises a bar 10 pivoted to the door at 14 and carrying a yieldable resilient block 27 adapted, when the door is open, to be gripped and held by a pair of rigid walls 31 of a socket inside the car panel 16, the distance between these walls being less than the corresponding cross dimension of the block, so that part of the block is displaced into the other cross dimension. The arm 10 passes through a resilient pad 45 at the base of the socket, and may be bent at the end as shown. The block 27 is mounted on the arm by a plate 56 and cotter 55 at one end, and a pair of plates 57, 58 at the other end having tongues engaging a slot 61 in the bar to permit the block to slide along the bar.