baber/WOPTO huggingface dataset:
Patent GB-597535-A (GB)
Title: Improvements in or relating to electric current switches with magnetically controlled contacts
IPC: H01H37/48
Filed: 1945-08-13
Abstract: 597,535. Thermal switches. HOLLISTER, F. L., and COLEY ELECTRICAL INSTRUMENTS, Ltd. Aug. 13, 1945, No. 20704. [Class 38(v)] A switch of the type wherein the moving contact lever carries an armature co-operating with a permanent magnet to hold the contacts in engagement, and a small mechanical movement is provided by a thermal or electromagnetic device or Bourdon tube to force the contacts apart, comprises a channel-section lever 40 mounted on pivots 41 and carrying the moving contact 38 and armature 39 at one end. Also mounted on the pivots 41 is a smaller channel-lever 42 carrying a blade-spring 44 between insulating strips 43, the whole assembly forming a resilent pivoted lever. The right-hand end of the blade is bowed at 46 and riveted to the lever 40 and its left-hand end is fastened to a support 32. The operating force from a cradle 48, (as shown, encircling the lever 40 and secured to the rod element 13 of a differential thermostat) is applied to the spring through an adjustable screwed pillar 49, so that as the left-hand end of the spring is forced down, the right-hand end of the lever is forced up to open the contacts. The contacts are surrounded by a mica insulating tube 47, so that they can be placed close to the shaped poles of the magnet 23, and a magnetic-keeper which diverts a strong blow-out flux across the contacts. A cylindrical cover enclosing the switch-mechanism may be mounted on the extended screw 49 as an adjusting knob.
Patent GB-267080-A (GB)
Title: Improvements in or relating to chromium plating
IPC: C25D5/40
Filed: 1926-08-23
Abstract: 267,080. Metals Protection Corporation, (Assignees of Pierce, H. C.). March 5, 1926, [Convention date]. Chromiuin, depositing; metals, pickling.-Iron, steel or nickel articles are anodically treated in the plating or another bath before electroplating with chromium. In an example, the article is cleaned in an alkaline bath, preferably while connected as a cathode, in order to remove oxides. It is then mixed in cold water and suspended by an iron wire in a chromium plating bath of ordinary composition. It is first connected as anode, the current being regulated so as to cause slight gassing; the current is reversed after a suitable period. The article may also be connected alternately as cathode and as anode during the preliminary treatment; in this case the last anodic treatment should be sufficiently long to remove the previous deposit. The current density in the final plating may be 40-200 amps. per sq. ft. When the articles to be coloured by buffing after plating, the current density should be lowered to the minimum value shortly before completion.
Patent GB-1317127-A (GB)
Title: Canister
IPC: B65D43/02
Filed: 1971-04-19
Abstract: 1317127 Portable containers; caps for containers DART INDUSTRIES Inc 19 April 1971 [3 Feb 1970] 20861/71 Headings B8D and B8T A receptacle 14 for food comprises a flange 22 provided with a plurality of recesses 32 so that a flange 31 of a cover 12 may be grasped to facilitate cover removal. The flange 22 which serves as a handle may extend radially beyond the flange 31 to protect the cover 12 and prevent the receptacle rolling should the receptacle be placed on its side (Fig. 4). The receptacle also comprises one or more side wall(s) 16, an integral bottom 18 and a rim 24 for engaging within a cover groove 27 to form a hermetic seal. The cover flange 31 may have a finger engaging dependent rib. The receptacle may be compression or injection moulded from polythene, blends of polythenes and polypropylene.
Patent GB-1412236-A (GB)
Title: Light fittings
IPC: F21V21/04
Filed: 1974-05-13
Abstract: 1412236 Clamps EDISON HALO LTD 13 May 1974 20977/74 Heading E2B [Also in Division F4] A lighting fitting (see Division F4) which is adapted to be moved into or out of a square aperture in a false ceiling is supported by two U-shaped wires 8 the bases of which are pivoted on opposite sides of the frame surrounding the aperture and the arms of which extend parallel to opposite sides of a square lamp surround 4 slidable within the frame. The wires are attached to the surround 4 by two clamps, each of which comprises a bolt 13 on which are mounted two identical bushes 11, 12 formed with grooves 17, 18 to receive one arm of each wire. A washer 16 is disposed between the bushes, and a stiff card washer 21 prevents the bushes from falling off the bolt before the clamping nut 15 has been placed in position. The nut is tightened until the friction between the wires and the bushes is sufficient to hold the lighting fitting in any desired position of adjustment.
Patent GB-294253-A (GB)
Title: Improvements in or relating to urea-formaldehyde condensates
IPC: C08G12/12
Filed: 1928-07-19
Abstract: 294,253. Budd Manufacturing Co., E. G., (Assignees of Smidth, L.). July 21, 1927, [Convention date]. Grant of Patent opposed. Condensation products of formaldehyde with urea and thiourea.-Urea is condensed in aqueous solution with formaldehyde, which is preferably slightly acid, at a relatively low temperature, e.g. at 25-50‹ C., the mixture is distilled in vacuo at a higher temperature, but preferably below 100‹ C., and thiourea is added either before or after the distillation. The mixture is then distilled again at a still higher temperature, e.g. 100-200‹ C. The viscous product may be poured into a. mould and allowed to cool, and the brittle soluble product so obtained may then be heated, e.g. at 70-90‹ C., for a considerable time, when it becomes tough and insoluble. Alternatively, the brittle soluble product mav be ground, mixed with fillers &c., and moulded under heat and pressure, or the viscous product obtained after the second distillation may be subjected directly to high pressure and temperatuure.
Patent GB-597453-A (GB)
Title: Improvements in work positioners
IPC: B23K37/04
Filed: 1945-08-20
Abstract: 597,453. Uniting by fusion ; work-holders. BURGESS, A.F. (Harnischfeger Corporation). Aug. 20, 1945, No. 21208. [Classes 83 (iii) and 83 (iv)] A work positioner, particularly four electric welding, comprises a base 8 with an upright 9 and a screw-shaft 19 alongside the upright, the shaft being universally connected at 20 to the base at one end and being engaged at the other end by a nut in a casing 23 universally mounted at 25, 27 on a frame 12 which carries a work table 33 and is vertically adjusted in the upright by a motor 31 worm-geared to the nut and carried by the casing. The screw-shaft is provided at its ends with extensible leather boots 32 to prevent contact of the welding electrode with the shaft. A frame 12 is provided with guide rollers 15 and canting of the frame is prevented by large bearing rollers 16<1> at the top and bottom thereof, the lower roller being carried by a box with vertical pivots 18. A table, which has a flange 331 for preventing contact of the electrode with the gear 35, is provided with a shaft 36 rotatable in a trunnion block 38 provided with trunnion shafts 39 mounted in bearings 40 on the outer ends of each arm 14 of the frame 12. The table may be tilted about the trunnion axes by securing to the block 38 lever arms 41 which may be pivoted by a pin 43 through one of the holes 42 to the end of a screw 44 with protecting boots 56, which may be traversed by a nut 46 rotated by a motor 55 and worm gear in a casing 47 pivoted at 50 in ears 51 to the frame 12. The table may be rotated by spur gear 35, 59, worm gear mounted in a housing 61 secured to a frame 62 supporting the table, belt gear 65, adjustable variable speed gear 68 and belt gear 71 from a motor 74. An operator's platform 77, 76 is connected to levers 82 passing over the shafts 39 and also to links 84 pivoted to brackets 87 on the arms 14. Keys 79 on the shafts 39 work in arcuate slots 80 in the hubs 81 of the levers 82 so that when the table reaches an angular position such as shown in Fig. 4, the keys 79 engage the hubs of the levers 82 and swing up the platform out of the way of the table.
Patent GB-737957-A (GB)
Title: Steroid ketals
IPC: C07J75/00
Filed: 1953-07-31
Abstract: The invention comprises a 3,20-cyclic diketal of a 4-chloro- or 4-bromo-pregnane-3,20-dione and the preparation thereof by mixing together an alkane-1,2-diol or an alkane-1,3-diol and a steroid 4-halo-3,20-dione having a pregnane carbon skeleton in the presence of an acid catalyst, e.g. m- and p-toluene sulphonic acids, naphthalene sulphonic acid, benzenesulphonic acid, ortho-chlorobenzenesulphonic acid, hydrochloric acid and sulphuric acid, at a temperature between about 20 DEG  and 200 DEG  C., to cause conversion of the 3- and 20-ketone groups to ketal groups. Examples disclose the production of 4 - chloro - 17a  - hydroxypregnane - 3,11,20-trione 3,20-ethylene glycol diketal, 4-chloro-11b , 17a  - dihydroxypregnane - 3,20 - dione 3,20-ethylene glycol diketal, 4-chloropregnane-3,20-dione 3,20-ethylene glycol diketal, 4-chloro-17a -hydroxypregnane-3,11,20-trione 3,20-propane-1,2 and 1,3-diol diketal, 4-bromo-17a -hydroxypregnane-3,11,20-trione 3,20-propane-1,2-diol diketal, 4 - bromo - 11b ,17a  - dihydroxypregnane - 3,20 - dione - 3,20 - propane - 1,2 - diol diketal, 4 - bromopregnane - 3,11,20 - trione 3,20 - (3 - methyl - pentane - 1,2 - diol) - diketal, 4 - bromo - 12 - hydroxypregnane - 3,20 - dione 3,20 - propane - 1,3 - diol diketal and 4-chloro-11a ,17a  - dihydroxypregnane - 3,20 - dione 3,20-ethylene glycol diketal.
Patent GB-307731-A (GB)
Title: Process for the manufacture of a latex-mixture having high adhesive properties
IPC: C08L7/02
Filed: 1928-07-23
Abstract: 307,731. Nederlandsche Gutta-Percha Maatschappij. March 12, 1928, [Convention date]. This subject-matter, with drawings, was laid open to inspection under Sect. 91 of the Acts, March 13, 1929. Indiarubber &c. adhesives; attaching rubber to other articles.-An adhesive suitable for use in attaching rubber to other articles such as leather soles &c. consists of a mixture of hevea latex and a latex of low rubber and high content of cholesterine-like products, such as that of jelutong. According to the Specification as open to inspection under Sect. 91 (3) (a) rubber is attached to other articles particularly leather soles, wooden backed floor tiles &c. by forming mating grooves and ridges, preferably parallel to the edge, to increase the adhesion of rubber solution or latex. A layer of leather with projecting pins or studs may be embedded in a rubber sole by this means. For facilitating attachment by solution or latex, a sheet of unvulcanizable rub. ber is applied to the vulcanizable mix, and united by vulcanization. This subject-matter does not appear in the Specification as accepted.
Patent GB-121947-A (GB)
Title: Improvements in Saddle Operating Gear for Lathes.
Inventor: KELLENBERGER LEONHARD
IPC: B23Q5/14
Filed: 1918-12-19
Abstract: 121,947. Kellenberger, L. Dec. 29, 1917, [Convention date). Turning. - Saddle - operating mechanism comprises change gears h, i driven through gears on swing- ing levers k, l, and in line with the splined shaft e and the lead-screw d respectively, combined with a worm or other wheel n mounted loosely on the same shaft as a hand-wheel w, to which shaft it may be coupled when desired. The wheels n or w may traverse the saddle c through a pinion engaging a wheel t splined to a shaft on the end of which is a pinion that can be slid into engagement with the raok v. The wheel t may also be slid on the shaft, to engage a pinion f' for driving the screw of the cross-slide. A segmental cam e<1> mounted on the shaft b' of the split-nut-controlling handle a' ensures the traversing pinion being moved out of engagement with the rack before the nut is engaged with the leadscrew. Guards z for the slides b, running on rollers z<1> at either side of the headstock a, may be attached to the saddle. The saddle apron o and saddle c may be in one piece.
Patent GB-787554-A (GB)
Title: Process for the conversion of polyethylene terephthalate into dimethyl terephthalate
IPC: C07C69/82
Filed: 1956-07-10
Abstract: Polyethylene terephthalate is converted into dimethyl terephthalate by the treatment of molten polyethylene terephthalate in the presence of ortho- or meta-phosphoric acid with superheated methanol vapour which is at a temperature of 220-245 DEG  C.  The process may be carried out (a) by passing the superheated methanol vapour through a melt of polyethylene terephthalate which contains a small amount of phosphoric acid, the dimethyl terephthalate formed passing together with excess methanol vapour to a cooled receiver or (b) by melting the polyester on a melting grid under nitrogen, pumping the melt through a perforated metal plate into a cylinder in which the molten threads fall freely while being contacted with phosphoric acid and superheated methanol vapour and recovering dimethyl terephthalate from the bottom of the cylinder.  In an example, a procedure as described under (b) above is detailed.
Patent GB-439580-A (GB)
Title: Improved dance floor powder
IPC: C09G1/08
Filed: 1934-07-21
Abstract: Dance-floor powders are rendered invisible on the floor by incorporating a small proportion of wax or fat dyed or stained brown. For example, a small proportion of hard paraffin or stearine coloured by 1--3 per cent of brown dye or stain is mixed into French chalk or boracic acid.
Patent GB-908646-A (GB)
Title: Improvements relating to ovens containing rotary spits
Inventor: RAMSAY JAMES
IPC: A47J37/04
Filed: 1960-06-17
Abstract: 908,646. Rotary spits; mounting spit rods. GAS COUNCIL. June 16, 1961 [June 17, 1960], No. 21376/60. Class 28 (1). In a rotary spit oven comprising a number of rotatable spit rods mounted on a powerrotated assembly, e.g. as described in Specification 908,645, the spit rods are connected to the assembly at one end by means of spigot and socket joints and at the other by drive-transmitting releasable catch mechanisms. As shown, the right-hand end of a spit rod 7 has a spherical ball 8 fitting detachably into a socket 9 in a boss 10 welded on a disc 6, which, together with a further coaxial disc 5, is rotated by a powerdriven shaft 4. Connection of the left-hand end of the spit rod 7 is effected by means of a sleeve 11 which engages over the end of a stub shaft 14 rotatably mounted in a bearing bush 15 welded to the disc 5, the ends of a diametric cross-pin 16 through the stub-shaft engaging in slots 17 in the left-hand end of the sleeve 11. Movement of the sleeve 11 is restricted by a grub-screw 12 sliding in a slot 13 and to allow transmission of the drive from a wheel 17a the right-hand end of the sleeve and the left-hand extremity of the rod 7 may be square sectioned; alternatively, both the shaft and rod ends and the entire sleeve 11 may be of square crosssection. With sleeve 11 slid back, the rod 7 can be swung clear and then withdrawn entirely to impale chickens, joints of meat, &c., which are held in position on the rod by slidable, clampable forks 22, 24. The rod is then replaced in the oven, the ball end being fixed in position first.
Patent GB-953901-A (GB)
Title: Improvements in or relating to a process of making polypropylene film
IPC: B29C48/10
Filed: 1961-06-13
Abstract: 953,901. Making polypropylene films. HERCULES POWDER CO. June 13, 1961 [June 20, 1960], No. 21382/61. Drawings to Specification. Heading B5B. Partially oriented stereoregular polypropylene film that is further orientable by stretching in the longitudinal and/or transverse directions is made by extruding molten stereoregular propylene in the form of a flat or a tubular film, cooling the film to a temperature of 110 to 160 C., preferably 115 to 140 C., stretching the extruded film in the longitudinal and/or transverse direction while it is maintained at a temperature of 110 to 160 C., and then rapidly cooling the stretched film to a temperature not above 40 C. The melt may be extruded on to a first roll having a surface temperature of 110 to 160 C. and rotating at a peripheral speed greater than the linear rate of extrusion to stretch the extruded film; and the film thus formed may be further stretched and cooled by drawing it on to a second roll having a surface temperature not above 40 C. and rotating at a peripheral speed greater than that of the first roll. The melt may bo extruded to form a film into a bath of an inert liquid maintained at 110 to 160 C. and stretched while immersed in the bath. If the extruded film is tubular in form, it is stretched by being inflated. The stretch ratio may be from 2: 1 to 8: 1.
Patent GB-1458414-A (GB)
Title: Composition and method of treatin ulcers
IPC: A61K31/00
Filed: 1974-05-14
Abstract: 1458414 Composition for treating ulcers SYNTEX (USA) Inc 14 May 1974 [25 May 1973] 21402/74 Heading A5B A composition comprises from 10 to 40% wt. sucrose; 10 to 40% wt. glucose; 12 to 20% wt. amino acid mixture containing at least all of the essential amino acids, or pharmaceutically acceptable salts thereof; and 7.5 to 12% wt. pharmaceutically acceptable lipid having a polyunsaturated to saturated molecular ratio of at least one, the composition having an aqueous solution osmolality of from 400 to 1500 milliosmoles per Kg. at a concentration of 0.1 to 0.5 g. of the composition per ml. and wherein at least 50% of the composition is composed of the sucrose, glucose, amino acid mixture and lipid. Other ingredients such as non-essential amino acids, zinc salts, e.g. zinc sulphate, medicaments, vitamins and antacids may also be present.
Patent GB-275427-A (GB)
Title: Improvements in petrol or like taps
IPC: F16K5/04
Filed: 1926-08-31
Abstract: 275,427. Whittington, R., (trading as Whittington & Sons, T.). Aug. 31, 1926. Ro t a r y cylindrical valves; materials, special. -A petrol or like tap comprises a transverse rotary plug 3 mounted in a seating of cork &c. in the form of discs 10 on each side of the plug 3 with hollow plugs 12 screwing into or onto the casing 1 for compressing the seatings and for forming the pipe connections. The rotary plug is held by a spring 4, and the casing is recessed to provide abutments for the pin 8 in the open and closed positions of the tap.
Patent GB-892354-A (GB)
Title: Method of suppressing corrosion of magnesium metal articles and the articles therebyobtained
Inventor: BOTHWELL MARVIN RALPH
IPC: B32B15/01
Filed: 1960-06-17
Abstract: An article of Mg or alloy containing at least 75% mg is protected from the atmosphere or from a galvanically incompatible metal article by a layer of Al interposed therebetween, said Al containing less than 0,05% Fe, less than 0,1% Cu, less than 0,1% Ni, less than 0,1% of Fe+Cu+Ni, up to 1% Mn, up to 15% Mg, up to 3% Si, and Zn up to 2,5% plus 0,5 times the Mg content.  The Al should also contain, in all, less than 0,5% of Bi, Pb, Cr and Ti.  The Al layer may take the form of a cladding or coating applied to the Mg article or to the incompatible metal (e.g. by rolling, bonding with adhesive, dipping, spraying, electrodeposition, vapour deposition, decomposition of Al-bearing compounds, or impacting with finely-divided Al powder) or may be in the form of a shim, strip or panel which is riveted or bolted between the Mg and the other metal.  U.S.A. Specification 2,901,409 is referred to.
Patent GB-643080-A (GB)
Title: Glass forming apparatus
IPC: C03B23/09
Filed: 1947-08-06
Abstract: 643,080. Gas burners. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 6, 1947, No. 21459. Convention date, March 15, 1941. [Class 75(i)] [Also in Group XXIII] In apparatus for forming the ends of tubular glass bulbs (see Group XXIII), gas burners are mounted on sleeves 18 continuously rotated within axially movable supporting units 1 and surrounded by a water jacket; each burner comprises end plates 23, 25 and a variable number of interme d i a t e rings 24, all with inner peripheral nozzles 1 3 6 ; gas is supplied through ports 87, round the sleeve 18 (between seals 128) and through a channel 91.
Patent GB-516171-A (GB)
Title: Improvements in devices for breaking joints between pipe sections
IPC: E21B19/16
Filed: 1938-06-14
Abstract: 516,171. Winch clutches. SCHREIBER, J. H. June 14, 1938, No. 21480/39. Divided out of 516,116, under which a Specification was laid open to inspection, under Sect. 91 of the Acts, Dec. 17, 1938. [Class 78 (v)] [Also in Group XXI] Means for breaking joints between pipe sections by means of a jerk-line attached to one of the sections comprises a driving member rotating continuously, a movable member attached to the jerk-line and so guided that on movement of said movable member the jerkline is wound on the driving member, and means for optionally effecting a driving connection between the movable member and the driving member. The device is constructed as set out in the abridgment of Specification 516,116.
Patent GB-485435-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G11/08
Filed: 1937-08-04
Abstract: 485,435. Delivering materials from hoppers. SEELEMANN, A. F., and PFULLER, (nÚe SEELEMANN), M., (trading as SEELEMAN & SOHNE, G. A.). Aug. 4, 1937, No. 21493. Convention date, Aug. 4, 1936. [Class 78 (i)] [Also in Group XVIII] In a weighing-apparatus for discharging a uniform stream of material the scale pan is formed by a moving conveyer d on to which the material from a supply hopper b is directed (for example by a conveyer c and guide v), the weight of material on the conveyer d causing the conveyer to move laterally or to actuate a deflecting device so as to direct a portion of the stream to an elevator g for return to the supply hopper. The lateral movement of the conveyer d is produced by a pin-and-slot connection t between a counterbalancing pendulum-lever e and the suspension means m of the conveyer. When a deflecting device is used, this is caused to swing across the stream and deflect a portion to the elevator. A number of the weighing devices may be arranged to deliver various materials to a common receptacle, for example a mixing chamber.
Patent GB-295650-A (GB)
Title: Means for controlling electrically driven transporting machines, such as winding engines and hoists
IPC: B66B1/12
Filed: 1928-07-24
Abstract: 295,650. Akt.-Ges. Brown, Boveri, et Cie. Aug. 16, 1927, [Convention date]. Systems for maintaining defined speed; controlling extent of travel automatically. - The driving-motor 1 is compensated against accidental changes of speed by a tachometer generator 4 feeding an electromagnetically actuated quickacting resistance regulator 6 connected to an exciter field belonging to the dynamo 2 which supplied the driving-motor. This speed regulation comes into action as soon as the motor has been started by moving the operator's handle 11 to one extreme position. The travel of the motor then acts through cam mechanism 8 upon two slowly working resistance controllers 7 and 5, the controller 7 increasing the strength of another exciter field belonging to the dynamo 2 while the controller 5 simultaneously counteracts increase of current in the electromagnetic winding of the speed regulator 6, which would otherwise follow from the increased speed of the tachometer generator. The combined effect is that the speed of the wind or hoist is increased and afterwards diminished according to a law determined by the previous setting of the cam mechanism 8, the departures therefrom being automatically corrected by the quick-acting regulator 6. Limit switches 13 determine the extent of travel in conjunction with an electromagnetically controlled brake 15. The maximum speed is set by a handle 10 which adjusts a slotted member 9 so as to arrest the resistance varying controllers 7 and 5 in any selected position. The handle 10 also gives the operator the power of superseding automatic control of speed by manual control over the whole or part of the range of travel of the motor.