baber/WOPTO huggingface dataset:
Patent GB-977268-A (GB)
Title: Improvements in master cylinders for hydraulic braking systems
Inventor: REYNOLDS DESMOND HENRY JAMES
IPC: B60T11/20
Filed: 1962-09-29
Abstract: 977,268. Master cylinders. GIRLING Ltd. Sept. 12, 1963 [Sept. 29, 1962], No. 37003/62. Heading F2F. In a tandem master cylinder communication between a reservoir and the pressure space between the two pistons is controlled by a valve tiltable by one of the pistons, and communication between the second pressure space and the same or another reservoir is controlled by a valve adapted to engage a seating around a port in the cylinder end wall and coupled to the floating secondary piston. In one embodiment the first valve is tilted by a flange on the main piston when the latter is in the brake off position, while in the embodiment shown tilting is effected by the secondary piston 46. The second valve 34 has an extension 36 entering into a bore 38 in a forward extension of the piston 46 and is retained therein by a clip 41. A spring 49 between the clip and a valve cage 35 maintains the valve extended towards the reservoir port 32 which is thus closed when the pistons move forward on brake application. The invention is applicable to master cylinders having two or more secondary pistons.
Patent GB-1480811-A (GB)
Title: Internally pressurised load supporting mast
IPC: E21B15/00
Filed: 1974-08-23
Abstract: 1480811 Propelling and guiding elevators BAKER OIL TOOLS Inc 23 Aug 1974 37278/74 Heading B8L [Also in Division E1] A workover rig for pulling or snubbing well pipe, e.g. on an offshore platform 13, includes a vertical mast 11 and lift means 24 which are moved up and down the mast 11 by a linear hydraulic actuator 56 acting through a pulley system, the pressure fluid for the actuator 56 passing through the legs of the mast 11 to compensate for the load on the mast. As described the mast 11 consists of front and rear legs 16, 17 and 14, 15 and is pivoted at 19 to a frame 20 mounted on a skid member 12. The mast is raised by piston and cylinder 91 until the front legs 16, 17 rest on pads 22. The front legs 16, 17 are then connected, through frame 110, to the top 130 of the well casing so that loads imposed on the mast are transmitted to the well easing rather than the platform 13. The lift means 24 (Fig. 8) consists of a cross head 25 having rollers 26 which run up and down the front legs 16, 17. The cross head 25 carries a rotary table 33 and a pipe gripping assembly consisting of a slip bowl 37 and a snubber bowl 38. Similar pipe gripping means (not shown) are mounted at the top of the well casing. The cross head 25 is connected to vertical cables by clamps 29, 30. The mast carries crown pulley sheaves 41, 42, equalizer sheave 84, and base pulley sheaves 79, 80. The hydraulic actuator 56 consists of a piston and cylinder device, the piston rod being fixed to the top of the mast, and the cylinder being movable and guided by rollers 70. The cylinder carries pulley sheaves 74, 75, 76, 77. The cable system (Fig. 7) consists of a single cable which is anchored at 89 and passes around sheave 77, then base sheave 79, crown sheave 47, sheave 76 and then over equalizer sheave 84 to the opposite side which is identical to the first side. The lifting means 24 is clamped to the vertical runs of cable between the crown and base pulleys 41, 42 and 79, 80. This arrangement produces a double purchase whereby the stroke of the lifting means 24 is double that of the cylinder 56. The arrangement also allows the pipe to be snubbed into the well. Pressure fluid is supplied to the rod end of cylinder 56 through passages in the front legs 16, 17 and to the head end of cylinder 56 through passages in the rear legs 14, 15, the fluid pressure in legs 14 to 17 compensating for the compressive loads imposed on the legs during operation of the rig. The rig may be used in combination with a pair of winches 180 (Fig. 15) having cables 183, 184 which pass over additional pulleys 188, 189 provided at the top of the mast. The cables 183, 184 carry pipe elevators 190 and are used to transfer pipe between a pipe store and the rig as shown in Fig. 15. Each pipe elevator 190 (Fig. 10) consists of a cylinder 197 having a handle 200 and and axial opening 198 equal to the diameter of the pipe. A recess 199 receives the box end of the pipe to support the pipe.
Patent GB-786240-A (GB)
Title: Roadway section for bridges and similar supporting structures
IPC: E01D19/12
Filed: 1955-12-30
Abstract: 786,240. Floors; metal girders. AKT.-GES. FUR UNTERNEHMUNGEN DER EISEN-UND STAHLINDUSTRIE. Dec. 30, 1955 [Dec. 31, 1954], No. 37377/55. Classes 20(2) and 20(4) A light metal roadway section for bridges and similar structures comprises hollow boxes 2, Fig. 1, of completely enclosed section supported on transverse beams 1, cap plates 3, which are wider than the boxes 2, have their edges welded thereto and have downwardly bowed upper surfaces and stiffening walls 4, which extend at right angles to the boxes 2 with their b�ttom edges level with the bottom edges of the boxes and welded both to the boxes 2 and the plate 3. The walls 4 have lugs 9 by which they may be bolted to the beams 1, the adjacent wall 4 being cut away at 10, Fig. 6, to accomodate the lugs. Holes 6 are provided in the side walls of boxes 2 and in the stiffening walls 4, through which bolts such as 8 are passed to secure the members 2, 3 in place. Each outer edge of the roadway is formed by a hollow box whose outer wall 5 extends upwardly and is bent outwardly at its top edge. The hollow boxes may be filled with concrete.
Patent GB-326802-A (GB)
Title: Improvements relating to sliding doors, screens and the like
IPC: E05D15/06
Filed: 1928-12-19
Abstract: 326,802. Henderson, Ltd., P. C., and Henderson, P. C. Dec. 19, 1928. Sliding doors.-The hanger a of the rollers c of a pivoted sliding door f running in an overhead tubular track d has a bore a<1> communicating with a tube b terminating in a cup b<1> closed by a cap b<11> to receive grease for lubricating the roller bearing. A spigot d<1> on the hanger a is received in a tubular part e of the bracket e<1> and secured by an abutment d<11>. In the construction shown in Fig. 3 the roller support g has rollers h mounted at both ends, each roller bearing having a lubricating tube i with cup l and closure cap k. The support g carries a stem p connected to a U-shaped plate r secured to the door f<1>.
Patent GB-1328708-A (GB)
Title: Catalysts for use in reforming hydrocarbons and a process using such catalysts
IPC: F03B13/12
Filed: 1971-08-10
Abstract: 1328708 Reforming catalyst COMPAGNIE FRANCAISE DE RAFFINAGE 10 Aug 1971 [14 Aug 1970] 37523/71 Heading B1E [Also in Division C5] A reforming catalyst comprises a porous refractory inorganic oxide of specific surface greater than 15 m<SP>2</SP>/g, a pore volume greater than 0.1 cos/g and having acidic sites on which is deposited 0.02 to 2 percent of each of a platinum group metal, lead and/or tin and rhenium.
Patent GB-1479550-A (GB)
Title: Raster film and a method for manufacturing a screen stencil while using this raster film and a screen stencil manufactured in this manner
IPC: G03F7/12
Filed: 1975-09-15
Abstract: 1479550 Half-tone screens STORK BRABANT B V 15 Sept 1975 [24 Sept 1974] 37745/75 Heading G2M [Also in Division B6] A raster film for use in a photomechanical process for producing a screen stencil comprises a film having a number of differently shaped apertures 1, arranged so that the maximum difference between the largest and the smallest distance between adjacent edges of the apertures is less than half the average value of the distance between apertures, and so that a line 4 in any direction passes, on average, through the same number of apertures. The maximum difference between areas of individual apertures is preferably less than half of the average value of the area of each aperture. The smallest radius of curvature of the circumference of each aperture is preferably not less than half of the smallest dimension of that aperture.
Patent GB-1116768-A (GB)
Title: Engine/automatic transmission/differential drivelines
IPC: F16H47/08
Filed: 1966-08-24
Abstract: 1,116,768. Motor vehicle transmissions. FORD MOTOR CO. Ltd. 24 Aug., 1966 [22 Oct., 1965], No. 37880/66. Heading B7H. [Also in Division F2] In a motor vehicle transmission, the output from an engine 10 is connected to the input of a torque converter 12, the output from the torque converter is connected by reduction gearing to the input of automatic 11y-controlled variable-ratio planetary gearing 16, and the output from the planetary gearing is transmitted to the driven road wheels without further reduction. The torque converter 12 comprises an impeller 44 driven by an extension 40 of the engine crank-shaft, a stator 48 held by a one-way brake 50, and a turbine 46 connected to a sprocket 60 driving through a chain 64 a larger sprocket 62 on a drum 66 forming the input to the planetary gearing 16. The output shaft 30 of the planetary gearing is connected directly to the planet carrier of differential gearing 32 driving axle shafts 34, 36. The planetary gearing 16 provides four forward ratios and reverse. A first planetary train 18 comprises a sun-wheel 80 connected by a oneway brake 94 to a shaft 102, a pair of intermeshing planet pinions 84, 86 on a carrier 82 connected by a one-way brake 96 to the shaft 102, and an annular gear 88. A second planetary train comprises a sun gear 128 on the shaft 102, a planet gear 126 on a carrier 130 connected to the output shaft 30, and an annular gear 124 connected to the annular gear 88. In first gear a clutch 72 is engaged to drive the sun gear 80 from the input drum 66 and a brake 106 is applied to hold the shaft 102, the carrier 82 reacting on the one-way brake 96. In second gear a clutch 74 is engaged to drive the planet carrier 82 and the brake 106 applied, the sunwheel reacting on the one-way brake 94. In third gear both clutches 72, 74 are engaged to look the first planetary train and the brake 106 is applied. Fourth (direct) gear is obtained by additionally engaging a clutch 110 to lock both trains and releasing the brake 106. For reverse, a brake 120 is applied and the clutch 72 engaged, the one-way brake 96 engaging and acting as a clutch between the carrier 82 and the sun-wheel 128. Friction clutches 108, 110 are engageable to provide engine braking in first, second and reverse gears. The friction clutches and brakes are fluid pressure engaged and spring disengaged. The gear shifts are automatically dependent on vehicle speed and torque demand.
Patent GB-1193074-A (GB)
Title: Improvements in or relating to Press Tools.
Inventor: MCGEE EDWARD CHARLES
IPC: B21J15/10
Filed: 1966-08-24
Abstract: 1,193,074. Riveting. PRESTINCERT Ltd. 3 Aug., 1967 [24 Aug., 1966], No. 37892/66. Heading B3U. A press-tool for forcing eyelets, bushes, rivets &c. 86 into sheet material 87 comprises a punch 3 reciprocable in a housing 8 which has an aperture in its wall through which the eyelets &c. are fed from a shoot by a feed member arranged to be moved out of the aperture by engagement with the punch during the operative stroke of the punch. The feed member may be a pawl 12 pivotally mounted in the housing and urged into the aperture by a spring 15. The eyelets are fed by gravity down the shoot (62), Fig. 2 (not shown), from a feeding bowl, e.g. a vibrating-bowl feeder. The lower end (47) of the shoot is rigidly connected to the housing and is pivoted to the rest of the shoot by a pivot pin (50). In operation an eyelet &c. 86 is fed into the bore by the pawl and held in the bore by a spring 81 mounted in the wall. The punch and housing descend together until the bottom of the housing abuts the sheet whereupon the punch forces the eyelet into the sheet. The shoulder 91 on the punch retracts the pawl during the descent and the shoulder 94 hits the shoulder 95 to press the teeth 89 on the bottom of the housing into the sheet to stake the eyelet. The eyelets &c. may be forced into preformed holes or they may be self-piercing inserts which co-operate with the die 85 to remove a piece of sheet material.
Patent GB-1090479-A (GB)
Title: Separation of hydrogen from other gases
Inventor: BETTERIDGE WALTER
IPC: C01B3/50
Filed: 1965-09-06
Abstract: 1,090,479. Separation of H 2  on Pd. absorbents. INTERNATIONAL NICKEL Ltd. Sept. 1, 1966 [Sept. 6, 1965], No. 37950/65. Heading B1L. Hydrogen is separated from gaseous mixtures by sorption on palladium sponge or powder at high pressure after which unabsorbed gases are discharged and the hydrogen is desorbed by reduction of pressure, the process being carried out batchwise under conditions such that sorption and desorption are rapid. The preferred temperature range is 170-250C and cycle time less than 60 sec. The Pd sponge may have a bulk density of 9-10g/ cm<SP>3</SP> and be prepared by decomposition of pure Pd(NH 3 ) 2 Cl 2 . Specified partial pressures for the H 2  component of the mixture are 12 and 14 atmospheres. In Fig. 6 mixture from reservoir 4 passes via valve 7 to container 2 having heated jacket 3 and Pd mass 1 within, whence it passes by valve 22, flow controlling valve 12 reservoir 10 and valve 21 to e.g. a second apparatus of the same sort via a compressor. After a predetermined time valves 7, 22 and 21 are closed while valve 13 is opened, 16 being closed. H 2  evolved from the Pd pushes back piston 14 in vessel 11 which is thus under atmospheric pressure. The valves are then switched once more and the Pd absorbs more H 2  from more mixture while device 19 causes H 2  to be transferred via open valve 16 to reservoir 17. Applications disclosed are the removal of H 2  from mixtures also containing N 2  and from certain residue gases from petroleum refining, and a mixture containing H 2 , N 2  and CH 4  from NH 3  synthesis.
Patent GB-1001945-A (GB)
Title: Substituted benzhydrols
IPC: C07D311/76
Filed: 1962-10-09
Abstract: Compounds of formula <F\1> (wherein R1 represents a straight or branched chain alkyl group having less than 7 carbon atoms and R2 represents a hydrogen or halogen atom or a straight or branched chain alkyl or alkoxy group containing less than 5 carbon atoms (are prepared by reducing a benzophenone derivative of formula <F\2> wherein R11 and R111 represent hydrogen atoms or alkyl groups having a combined total of less than five carbon atoms, for example by lithium aluminium hydride.  Benzophenone derivatives of the second general formula above are prepared by treating a compound of formula <F\3> with bromine and heating the product formed.
Patent GB-1046270-A (GB)
Title: Improvements in venetian blind assemblies
IPC: E06B9/305
Filed: 1963-09-27
Abstract: 1,046,270. Venetian blinds. O. VELLE. Sept. 27, 1963, No. 38177/63. Heading E1J. In a venetian blind assembly the ladder tapes 2 are wound around the tilting shaft 8 a plurality of times and are fixed thereto at a point intermediate the turns. The ends 1 are secured to by inserting into a slot in the shaft and clamping the ends therein by closing the slot. Alternatively, the ends of the tapes may be clamped by a split pin or between an arcuate plate and the bottom of a dovetailed recess into which the plate fits.
Patent GB-877997-A (GB)
Title: Vertical shear for cutting metal articles
IPC: B23D35/00
Filed: 1959-11-12
Abstract: 877,997. Shearing. BALDWIN-LIMA HAMILTON CORPORATION. Nov. 12, 1959 [Dec. 4, 1958], No. 38365/59. Class 83 (4). In a shear for angles &c. 180 wherein at least one of a set of knives 34, 64 is reciprocated by means 14, 16 on a frame 10, the knives are on a sub-press mechanism which may be withdrawn transversely of the path of reciprocation. A slide 20 in the frame is driven hydraulically or by means of the crank and connecting rod 14, 16. The knife-set is supported in a carriage 30 which may be withdrawn along rails 80, 81 as described below and replaced by another 31, Fig. 4, having different knives. Location of the carriage 30 in the frame is by wedges and pins 122, 124, Fig. 7, on the frame engaging wings 118 on the carriage. The upper knife 34 for severing three angles 180 is on a slide 36 in vertical guides 38 in carriage 30, being biased upwardly as by a fluidpressure unit 40, 45 at each of the four corners of slide 36. The cylinder of each unit or (as shown) the piston rod moves relatively to the slide 36, bearing on replaceable seatings 48 on the carriage 30. The lower knife may be fixed or mounted on a slide 66 in guides 68 in the carriage to compensate for different sizes of work. Adjustment is by contact with a slide 130, Fig. 3, in the frame 10 operated by a wedge 140 movable by a cylinder 148 against a stop-screw 150 which is adjustable by a worm 154. Extensions 187 of the upper slide 36 engage slideways 186 on slide 66. Strippers 60 retained in the slide 36 by nuts 63 are biased towards the work by springs 61. A depressible table receives the severed stock, and inclined plates 76 deflect falling metal. Operation.-To change the knife-set, the supply line 52, Fig. 4, for cylinders 40 is disconnected from an accumulator 58 and connected to an inoperative pump 178 having a valve 177 which is opened to allow the upper knife-slide 36 to move a short distance away from slide 20. Slide 130 also is lowered to clear the bottom of the carriage 30, which is then drawn along rails 80, 81 by a screw 100 driven by an electric motor and gear-box 96, 98 having a brake 99. A nut 102 on the screw has a pin 104 engaging an opening 112 in the carriage, which has ears 198 to facilitate removal of the carriage by a crane. The auxiliary pump may move the upper knife of the dismounted carriage to permit alignment; alternatively. a single source of pressure may replace the accumulator and pump units 58, 178. Check valves 194 in the connections prevent release of fluid during disconnection. A bleedvalve may be provided on the slide 36 to lower the blade without the auxiliary connection 172.
Patent GB-354671-A (GB)
Title: Improvements in detachable treads for horse-shoes
IPC: A01L7/00
Filed: 1930-12-22
Abstract: 354,671. Horseshoes. BERG, R., 10, Dusni, Prague. Dec. 22, 1930, No. 38539. [Class 67.] A rubber or like tread 2, preferably ribbed as shown, is reinforced with pivoted metal links 3 and is secured to the shoe by countersunk screws 5, which at the heels pass through heads on the end links, while at the points 6 they act as pivot pins for the links. The heads of the screws have square slots for the reception of a tool. At the points 8, the links 3 are pivoted on sleeves 15 which serve as sockets for spring-pressed calks 12.
Patent GB-340753-A (GB)
Title: Improvements in or relating to small screw propelled vessels
IPC: B63H1/28
Filed: 1929-12-17
Abstract: 340,753. Screw propellers. TUTIN, J., 26, Fenchurch Street, London. Dec. 17, 1929, No. 38575. [Class 114.] In propeller installations where the propeller is movable about a vertical axis for steering the propeller support and carries behind the propeller a fin or plate which is shaped to act as a counter-propeller, the screw propeller 1 is supported on a casing 2 and adapted to be turned about an axis x, y and at its after end is secured by rivets 11, 12 a plate or fin the upper and lower portions 4, 5 of which are bent oppositely towards points 14, 15. In one modification the fin is supported on a horizontal fore and aft hinge pin. In another modification the fin is supported on a vertical axis and in a further modification is secured at the bottom to a propeller skeg and at its upper end to a band encircling the propeller support. The fin may have a central enlargement in the form of a cavity adapted to receive the nut and like after projection on the propeller shaft. Specification 315,119, [Class 114, Ships &c. Propelling &c.], is referred to.
Patent GB-1219433-A (GB)
Title: Improvements in shoes
IPC: A43B1/14
Filed: 1968-08-13
Abstract: 1,219,433. Boots &c. ONITSUKA CO. Ltd. 13 Aug., 1968 [29 Aug., 1967], No. 38577/68. Heading A3B. [Also in Division D1] An athletic shoe comprises an upper formed from woven or knitted elongate members made of rolled or folded synthetic resin film. The members can be of square or circular section and may be twisted. The resin can be polyamide or polyester. The shoe upper has good ventilation through the holes between the members, is not moisture-absorbent and is strong and stain resistant.
Patent GB-902408-A (GB)
Title: Improvements in or relating to equipment for electric traction systems
Inventor: PROUD STANLEY HARRY RUSSELL
IPC: B60M1/18
Filed: 1957-12-13
Abstract: 902,408. Section insulators. BRITISH INSULATED CALLENDER'S CABLES Ltd. March 13, 1959 [Dec. 13, 1957], No. 38802/57. Class 36. The runners of a section insulator, of the kind having a massive insulator body, are yieldably supported relative to the massive body so that they can yield to upthrust from the pantograph without imparting lift to the body. A section insulator comprises a tension insulator 9 and a compression insulator 12, each pivotally connected at their ends to L-shaped end members 5 and 6 to which the ends of the contact wire 4 are clamped. The " approach" runners 18 and " departure " runners 22 are each clamped to a section of the contact wire by means of a fitting 19, Fig. 5 (and Figs. 3 and 4, not shown), which includes a cross-arm 39 which clamps the T-section runners and which pivots, on the portion of the fitting clamped to the contact wire, by means of a pin 42 in a bearing 37 mounted in a synthetic rubber bush 38. This resilient bearing thus permits both rocking movement and yielding movement to take place. The divergent arms of runners 18 are clamped at the ends of bracket arms 21 which are resiliently pivoted to the end fitting 6 whilst the arms of runners 22 diverge and then converge and are clamped along arms 56 carried on a fitting resiliently pivoted to the end fitting 5. The compression insulator 12 is rotatably mounted in thrust bearings and is connected at each end by pairs of rods 70 and 92 to the pivoted arms 21 and 56 carrying the runners, so that tilting of one pair of runners about the axis of the insulator is transmitted, by rotation of the insulator 12, to the other pair of runners. In an alternative embodiment (Figs. 14 and 15, not shown), this mutual tilting is effected by hydraulic links, whilst vertical yielding of the runners relative to the insulator body is permitted by mounting the pivoted brackets in spring-loaded guides and vertical movement of a bracket at one end is imparted to that at the other by means of links which rotate the insulator body. A further embodiment (Fig. 16 and 17, not shown) utilizes this latter method of effecting vertical lift of the runners but includes a third, rotatable, insulator body which is used in conjunction with rods, as in the first embodiment, to effect mutual tilting. Specification 902,409 is referred to.