baber/WOPTO huggingface dataset:
Patent GB-420621-A (GB)
Title: Improvements in or relating to the construction of water-borne vessels and the propulsion thereof
IPC: B63H5/14
Filed: 1933-10-11
Abstract: 420,621. Ships. MOLLER, O. P., 31, Glendale Avenue, Edgware, Middlesex. Oct. 11, 1933, No. 28122. [Classes 113 (ii) and 114] Ships' hulls are formed with one or more submerged fore and aft conduits 11 open at the stem and stern and with a propeller or propellers 18 situated slightly within or astern the aft end of the conduit. The opening at the ends may be flared in the thwart ship and also in the vertical direction and these openings may be provided with grills to prevent access of rolled matter. Rudders may be provided fore and aft the conduits. The conduits may be divided by watertight doors 24-26, Fig. 8, and by way of pipe 27 water may be removed from the conduit for inspection purposes or compressed air supplied through the pipe 28 for the purpose of raising the hull.
Patent GB-409587-A (GB)
Title: Improvements in or relating to quick-action electric switches
IPC: H01H35/26
Filed: 1933-10-12
Abstract: 409,587. Snap-action switches. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Oct. 12, 1933, No. 28143. Convention date, Nov. 3, 1932. [Class 38 (v).] Pneumatic actuation.-In a snap-action switch of the kind in which a control member e displaces a resilient member m having two positions of equilibrium through the medium of an intermediate resilient member, means are provided for varying the effective strength of either of said resilient members independently of the other. In the arrangement shown, the switch controls the circuit of a refrigerating plant, the control member e being pivoted at f and moved against the action of a spring g, to close a circuit p, s, in response to the pressure in a pipe c. The intermediate resilient member comprises a pair of leaf springs i, k secured to a pin h on the member e, and arranged one on each side of the snap-over spring m. The effective strength of the springs i, k is varied by an adjustable slide l. One of the bearing pieces n for the snap-over spring m is adjustably mounted in position, so that the effective strength of the spring m can be varied.
Patent GB-727280-A (GB)
Title: Improvements in waterproofing and plasticising compounds for cement, concrete and the like
IPC: C04B28/02
Filed: 1952-11-08
Abstract: A waterproofing and plasticizing compound for concrete comprises a saponified pinewood resin and a colouring medium, e.g. red iron oxide or monastral blue.  Specifications 572,817 and 727,259, [Group V], are referred to.ALSO:A water-proofing compound for concrete, as claimed in Specification 572,817, containing a colouring medium. Preferred colours are red iron oxide and monastral blue.  The water-proofing compound is a saponified pinewood resin. Specification 727,259 is also referred to.
Patent GB-283309-A (GB)
Title: Improvements in or relating to electrical connecting devices
IPC: H01R33/46
Filed: 1926-11-10
Abstract: 283,309. Bray, A., and Bray & Co., Ltd., G. Nov. 10, 1926. Two-part couplings.-In lamp-holders and other couplings having a contact unit comprising a plunger slidable in a metal guide against the action of a spring, an additional resilient conductor is provided to contact with the exterior of the plunger and with its guide to make a good electric connection between them. This device may comprise a split ring a, Fig. 1, embracing the plunger b and adapted to bear on the annular surface c' at the mouth of the guide under the action of the spring d, or it may comprise a wider split band a, Fig. 2, adapted to press at one end on the plunger and at the other end on the wall of the guide e. In the case of a solid plunger i, Fig. 3<a> having an external spring d, the device may comprise a flat ring a adapted to be pressed by the spring d against the end h of the socket e, the ring having upstanding and inwardly bent ears a<1> resiliently pressing on the plunger.
Patent GB-244065-A (GB)
Title: An improved air pump
IPC: F04B27/00
Filed: 1925-11-10
Abstract: 244,065. Worthington Pump & Machinery Corporation, (Assignees of Jorgensen, O. E.). Dec. 3, 1924, [Convention date].. Valves, arrangement of. - A double-acting pump is provided at each end with a passage leading to a common rotary valve having segments which connect the ends with common suction and discharge cylinders alternately. Two such cylinders may be disposed in line, with simultaneous discharge strokes to a common discharge. The pump may supply the scavenging air for internal-combustion engines. Fig. 1 shows cylinders A, A<1> separated by a partition a, their pistons being driven through a common piston rod by a crank-shaft G driven through toothed wheels 10, 11 from the crank-shaft H of an internal-combustion engine. An air inlet chamber I surrounding the cylinders connects with inlet passages K, K<1>, which communicate through the valve chambers with passages k, l, k<1> l<1>, leading to the cylinder ends. The rotary valves r, r<1> make one revolution for two revolutions of the pump crank-shaft, and are driven from a cam or other shaft M of the. engines, and connected by bell cranks 13. Fig. 4, and links 14. Specification 193,396, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-1511046-A (GB)
Title: Production of shaving foil
IPC: C23F1/02
Filed: 1975-07-05
Abstract: 1511046 Etching process GILLETTE CO 23 June 1976 [5 July 1975] 28426/75 Heading B6J A dry cutting shaver foil having apertures separated by bars 2, of the kind disclosed in Specification 1,508,235 (Division B4), is made by cleaning a strip of metal, e.g. steel, coating it on each face with a photoresist 11, 12, exposing each face to radiation, e.g. ultraviolet, through suitable masks to produce after development the masking areas 11a, 12a, spray etching to form recesses 6 and to partly form apertures to depth 14, removing the masking areas 11a and further etching to remove more metal to complete the formation of the apertures and the bars 2. In the example, the back face is etched first and then completely masked with adhesive tape 13 before the front face is etched.
Patent GB-249589-A (GB)
Title: Improvements in methods of sealing jars and the like containers and improved sealingcapsule therefor
IPC: B65D55/08
Filed: 1924-11-29
Abstract: 249,589. Sutcliffe, J. W. Nov. 29, 1924. Stoppers, b a y o n e tjoint; capsules and like closures.-Jars, bottles, &c. are sealed by a metal band or strip weakened by serrations in or adjacent to its lower edge so that the edge may be bent under the flange of the jar by moderate pressure. A cap, provided with indentations which engage short threads on the bottle neck, is scaled by a band having its lower edge scalloped as shown in Fig. 3 or castellated, the band being either endless or provided at its ends with connecting means by which it may be formed into a ring. When the weakening is effected by perforations these may be circular as shown in Fig. 8 or square.
Patent GB-791885-A (GB)
Title: Improvements in vapour generators
IPC: F22B1/22
Filed: 1955-10-07
Abstract: 791,885. Water-tube steam boilers. FOSTER WHEELER, Ltd. Oct. 7, 1955 [Oct. 8, 1954], No. 28699/55. Class 123(2) A pressure - fired, water-tube boiler comprises a gas-tight vertical cylindrical metal casing 12 housing in its upper part a steam and water drum 14 from opposite ends of which downcomers 15 connect to a lower header 16 disposed parallel to the drum in the bottom of the casing. A number of steam generating tubes 18 extend from the header 16 below a circular floor sheet 17 of refractory material and then upwardly in contact to form a circular arrangement of tubes and are connected to the drum 14 at the top, the tubes defining, with an arcuate wall 20, a combustion chamber 19. The chamber is fired by burners disposed in openings 21 in the wall 20, the tubes 18 adjacent each end of the wall being offset to provide gas outlet openings 26, 27 into annular passages 33, 34 partially surrounding the combustion chamber and being defined between a curved metal partition 23 disposed outside the tubes 18 and arcuate sheet metal walls 31 adjacent the casing 12. The gases flowing from the passages 33, 34 discharge through an outlet flue 37. Radial platens of vertical steam generating tubes 45 are disposed in the gas passage 33, the tubes extending between vertical headers 47, 48 which are connected to the drum 14 and the header 16 respectively. The passage 34 contains similarly arranged tube banks constituting two steam generating sections 50, 51 and a superheater section 52, the latter being connected between the drum 14 and a final outlet header 63. The gases leaving the boiler flow through a gas turbine and an economizer, the turbine, driving a compressor supplying combustion air to the burners. In a modification, the gases leave the combustion chamber through a single outlet and travel almost wholly around the chamber in an annular passage containing steam generating and heating tubes to reach the outlet. In a further modification, the gases travel in one direction around the chamber in an open annular pass defined by the combustion chamber tubes and an outer circular row of steam generating tubes and are then turned for flow in the opposite direction through a second annular pass surrounding the open pass and containing steam generating and heating tubes.
Patent GB-895949-A (GB)
Title: Improvements in or relating to gear cutting machines
Inventor: HOPKINS JACK ROWLAND
IPC: B23F23/06
Filed: 1957-09-12
Abstract: 895,949. Gear-cutting. SYKES Ltd., W. E. Sept. 9, 1958 [Sept. 12, 1957], No. 28810/57. Class 83 (3). A gear-cutting machine comprises fluidcontrolled means 13 for adjustably linking a tail-stock 42 to the cutter head 1. In operation, with the saddle 2, carrying the tail-stock assembly, in a withdrawn position, fluid pressure means are operated to clamp a gear 30 between centres 38, 40. The centre 40 is carried on a slide 8 urged towards the head 1 by the fluid-pressure operated wedge 13. The wedge 13 reacts against a stop 16 on a support 9 attached to the cutter-head and carrying a stop 20 which determines the position of the centre 40 in its innermost position. When the saddle 2 has been fed in increments to the final cutting position, the pressure to the wedge 13 is increased to hold the tail-stock firmly. When the teeth have been cut on the gear, the saddle and centres 38, 40 are withdrawn. The gear 30 is retained on a magazine 28 by spring clips 31. A piston 24 is then raised, by fluid-pressure, to carry the magazine 28 and a supporting sleeve 21 upwardly until a rack 34 engages a gear 35 on the sleeve. When the rack is moved hydraulically to index the magazine, a fresh workpiece is moved into position. The magazine is then lowered and a new cycle commences. The magazine may be automatically loaded and unloaded by conveyer means.
Patent GB-1155781-A (GB)
Title: Improvements in or relating to Optical Instruments
IPC: G02B27/32
Filed: 1966-06-28
Abstract: 1,155,781. Autocollimators. LORD CORP. June 28, 1966 [July 26, 1965], No.28892/66. Heading G2J. An instrument for measuring the angular displacement of a signal reflector 24, Fig. 1, relative to a reference reflector 19, comprises a first projection system including a light source 14 and a reference reticle 13 for producing an image 13<SP>1</SP> in the field of an eye-piece 10 after reflection from reflector 19, a second projection system including light source 21 and reticle 20 for producing an image 20<SP>1</SP>, after reflection from reflector 24 and an arrangement for indicating or measuring the displacement between the images 13<SP>1</SP>, 20<SP>1</SP>. To distinguish between the images 13<SP>1</SP>, 20<SP>1</SP>, red filter 42, and green filter 43 are provided in the projection systems and filters 26, 27, block the unwanted images from the respective mirrors 19, 24. By moving reticules 13, 20, the images 13<SP>1</SP>, 20<SP>1</SP>, may be made to coincide with the eye-piece reticule, which as shown, is an image 12 of a reticule 12<SP>1</SP> projected by a third projection system having light source 46. The reticules 13, 20, are moved by micrometer wheels which may be calibrated for visual reading or may have electrical pick-ups such as differential transformers or helical potentiometers. Alternatively there may be strain gauges on flex plates supporting and guiding the moving reticules or rotation coding of the micrometer wheels is used to drive a digital computer and printer. For automatic operation, after "locking on" visually, a photosensitive reticule is used whose error signal drives a servomotor to reduce such error to zero. In a further embodiment, the reticules 13, 20, are fixed and the distance apart of images 13<SP>1</SP>, 20<SP>1</SP>, is read from an eye-piece, Fig. 6 (not shown) having a pair of reticules (35, 38) for alignment with the images 13<SP>1</SP>, 20<SP>1</SP>, respectively one reticule being movable by a screw (30) and the other by a micrometer screw (39) which is calibrated to give the differential reading directly.
Patent GB-974145-A (GB)
Title: Method for the preparation of cyanic acid vapour from urea
IPC: C01C3/00
Filed: 1962-07-27
Abstract: Cyanic acid vapour is produced by heating urea within five seconds by vaporizing the urea in an exclusively or mainly indirectly heated bed of sand, fluidized by a stream of gas, at a temperature from 250 DEG to 400 DEG  C. under substantially anhydrous conditions and either maintaining the mixture of cyanic acid and ammonia at above 170 DEG C. or chemically removing the ammonia.  The ammonia may be removed by adding hydrogen chloride at above 170 DEG  C. and separating the ammonium chloride as a solid after cooling. The fluidizing gas may be nitrogen or ammonia.  The urea can be introduced either from above or from below by means of a gas.
Patent GB-1474438-A (GB)
Title: Clapper-type check valve
IPC: F16K15/03
Filed: 1974-07-01
Abstract: 1474438 Valves ACF INDUSTRIES Inc 1 July 1974 [24 Sept 1973] 29053/74 Heading F2V A clapper-type check valve has alternative mechanical means for opening the valve. A bowl-shaped valve member 30 is connected to a U-shaped pivot arm 54 by a ball-and-socket joint. The arm is keyed to a shaft 66 which in turn is keyed to a dog 94 in engagement with a dog 98 keyed to a shaft 92. A worm-wheel 114 attached to the shaft 92 is driven by a worm 116 rotated by a hand wheel (not shown). The dogs terminate in segmented lugs such that relative motion is permitted between the shafts 66 and 92. The valve may thus be opened mechanically or allowed to operate as a normal free-swinging check valve. A rod 110 attached to the shaft 66 carries a pointer 112 to indicate the positions of the closure member. A vane 37 on the valve member serves to prevent rotation about the ball-and-socket joint when the valve is in the open position.
Patent GB-479625-A (GB)
Title: Improvements in and relating to resinous compositions
IPC: C09D11/10
Filed: 1936-10-26
Abstract: Oil - resistant materials are prepared comprising plastic polymers of chloroprene and an alkyd resin prepared by the interaction of a polyhydric alcohol containing at least three hydroxyl groups and a dibasic acid, a dihydric alcohol, and a dibasic aliphatic acid.  In examples, compositions are prepared containing (1) polychloroprene, litharge, sulphur, rosin, anti-oxidant, zinc oxide, benzol and alkyd resin; (2) polychloroprene, benzol, rubber cement (a solution of rubber in naphtha), sulphur and alkyd resin; (3) polychloroprene, magnesium oxide, sulphur, rosin, cottonseed oil, benzol, red iron oxide and alkyd resin; (5) polychloroprene, litharge, sulphur, rosin, antioxidant, zinc oxide, cumar resin, mineral oil, phenol-aldehyde resin and alkyd resin.  The alkyd resin used in each example is prepared from glycerine, ethylene glycol, phthalic anhydride and adipic acid.  The compositions may be used in the preparation of printers' blankets, rolls and matrices. Specifications 365,140 and 413,666 are referred to.  The Specification as open to inspection under Sect. 91 refers in general to the use of any alkyd resin.  This generalization does not appear in the Specification as accepted.
Patent GB-603191-A (GB)
Title: Improvements in or relating to thermostatically controlled electrical heating apparatus
IPC: H01H89/04
Filed: 1946-11-30
Abstract: 603,191. Two-part couplings combined with switches. PRECISION-ELECTRIC, Ltd., and CHEETHAM, A. S. Nov. 30, 1946, No. 29081/45. [Class 38 (i)] A thermostat is formed as a unit with a plug for direct coupling by pins or sockets to an immersion heater or other heating apparatus carrying co-operating sockets or pins, one of which is connected permanently to a supply lead and the other through the heating element to the other supply lead. As shown, the thermostat is in the casing w secured to a base q from which pins t project into the end of a water heater unit being received in sockets _p therein connected to the mains and heaters b, the circuit being completed by the thermostat contacts when the plug is in position.
Patent GB-1507158-A (GB)
Title: Device for forming a mortar joint packing between a vessel outlet and a removable closure
IPC: B22D41/34
Filed: 1975-07-10
Abstract: 1507158 Mortar joint for molten metal outlet closure METACON AG 10 July 1975 [12 July 1974] 29122/75 Heading F4B A vessel 11 for molten metal has an outlet bore 18 and sliding closure 10. Before the sliding closure is fitted, a cylindrical expendable sheath 23 is fitted into the bore 19 of the baseplate 15 and mortar material 21 is deposited on the plate. The sheath 23 has the same diameter as the bores 18 and 19. When the sliding closure is fastened to the vessel, the top end of the sheath 23 enters the outlet bore 18 and the mortar is evenly distributed to form the joint 30 without any material entering the bores 18 and 19. The sheath 23 is made of a material such as cardboard that will burn up at high temperature. If the outlet bore (18<SP>1</SP>), Fig. 3 (not shown), has become worn, some of the mortar 21 penetrates the gap (33) when the sliding closure is secured. In a further application of the invention the upper portion 23a (Fig. 2) of the sheath may be made with a smaller diameter than the bore 18 of a new member 14 to provide additional mortar over the lower portion of the bore.
Patent GB-455735-A (GB)
Title: Adherent greases and method for manufacturing the same
Filed: 1935-10-22
Abstract: Strongly - adherent lubricating grease is obtained by incorporating a dispersion of natural rubber into a previously prepared grease obtained from lubricating oil and a lime soap. 0,1--5,0 per cent of rubber is suitable, and is added as latex or as a dispersion in oil. The soap may be 3--30 per cent of the product, and may be prepared from tallow, horse fat, or other animal fat, cottonseed, coconut, or other vegetable oil, fish oils, or fatty acids, e.g. oleic, stearic, or those obtained by oxidizing waxes or heavy oils.  There may also be added, an antioxidant e.g. 0,001--0,1 per cent of aldol, a -naphthylamine, or other aromatic amine or hydroxy-compound; a filler, e.g. chalk or graphite; wax; petrolatum; dye; and glycerine, glycols, or higher alcohols.  0,25--5,0 per cent of water is present. In an example, a grease composed of lime soap 12,0 lb., solar red oil 85,75 lbs., glycerine 1 lb., water 0,75 lb., and rubber 0,5 lb. is prepared by heating hydrated lime, fat, and most of the oil to form the primary grease, cooling to 200 DEG  F., and adding water if necessary, cooling to below 100 DEG  F., and adding a dehydrated dispersion of latex in the remainder of the oil.  The preparation of lubricants by heating together (1) lubricating oil, aluminium soap, e.g. stearate, and latex; or (2) solar red oil, lime soap, glycerine and water, with or without rubber, is also described.  Specification 401,295 is referred to.
Patent GB-291589-A (GB)
Abstract: 291,589. Callender's Cable & Construction Co., Ltd., Watson, J. r., Hunter, P. V., and Wilson, A. E. May 5, 1927. Cables. arrangement of parts of; cores; processes for making.-Electric cables of the type in which the conductor has freedom of movement within the dielectric as described in Specification 290,806, the space surrounding the conductor is produced by applying tension to the conductor and reducing its diameter after the dielectric is wound on. According to one application of the invention the conductor comprises wires C, Fig. 1, stranded with or round a compressible or deformable material D which may be a non-conductor such as jute, paper, string &c. or a conductor. The dielectric which may be paper is shown at A and the lead sheath at B. In order to support the dielectric after the reduction of the conductor diameter, a tubular sheath E, Fig. 7 may be interposed and may consist of metal, or non-metallic strip with or without a metallized inner surface. The invention may be applied to concentric or multi-core cables. The space between the conductor and the dielectric contains oil under normal working conditions.
Patent GB-906629-A (GB)
Title: Improvements in and relating to friction elements for clutches and brakes
IPC: F16D65/12
Filed: 1960-08-24
Abstract: 906,629. Friction linings for brakes. JURID WERKE G.m.b.H. Aug. 24, 1960 [Aug. 24, 1959], No. 29223/60. Class 103 (1). [Also in Group XXIV] A brake friction element comprises a series of segments, each consisting of a backing plate 3 with a layer of sintered friction material 2 on one side only, the rear surfaces of the backing plates being secured together, either in staggered formation, Figs. 3 and 4, or in back-to-back pairs, Figs. 5 and 6.
Patent GB-1313804-A (GB)
Title: Wide range dimension measuring apparatus
IPC: G01B3/00
Filed: 1971-06-22
Abstract: 1313804 Caliper gauges TOYODA KOKI KK 22 June 1971 [1 July 1970] 29262/71 Heading G1M [Also in Division G4] A machine tool caliper gauge comprises a "C"-shaped measuring head 1, Fig. 5, movable by fluid pressure in a cylinder 3, a block 12 slidably mounted on a rod 7 between the jaws 5, 6 of the head 1 carrying a first caliper member 16a adjustably mounted on a track 15, a member 35, Fig. 3, slidably received in a bore 32 in the block 12 and carrying a second caliper member 16b,  the block 12 being partially supported by a set of weights 31 connected to a screw 27 thereof by a flexible cable 30, and the rod 35 similarly supported by weights 52. In use, air under pressure is supplied to chambers 25, 47 to move pistons 22, 43 against coil springs 24, 46 to separate the calipers 16a, b respectively by a maximum amount, piston 22 pushing rod 23 against slidable rod 17 attached to the block 12, and piston 43 pushing rod and spar assembly 44-45 carrying member 16b. The head 1 is moved adjacent the object S to be measured and the air is slowly exhausted from chambers 25, 47 to allow the coil springs 24, 46 to cause contacting of the gauge 16 with the object S. A cylindrical bore 14 Fig.5 between rod 7 and block 12 is maintained pressurized with air to partially support the block 12 in position on the rod 7 and the weights 31, 52 are arranged to provide the desired contact pressure of the calipers 16 with the body S. Read is provided via a magnetic scale and head 40, 41, Fig. 3, (see division G4).
Patent GB-891057-A (GB)
Title: Fastening device
IPC: F16B37/04
Filed: 1960-08-24
Abstract: 891,057. Screw fastenings. BOEING AIRPLANE CO. Aug. 24, 1960. [Sept. 8, 1959], No. 29304/60. Class 89(1). A nut 1. for engagement by a bolt C for securing a plate B to a plate A is held in position on plate A prior to the bolting by means of cage 3 co-operating with a sleeve 2. The sleeve has a head or flange 21 on one side of the plate A and is engaged by teeth 32 of the cage 3 on the other side, which teeth bite into the sleeve to hold the assembly in position. The nut 1 is located in the cage by lugs 11 engaging in slots 34. Alternatively, the nut may be integral with the cage and interengaging ratchet teeth may be provided on the cage and sleeve to effect the securing thereof, the sleeve being axially slit to provide resilience. An upturned lug 36 on the cage prevents its rotation.