baber/WOPTO huggingface dataset:
Patent GB-1389424-A (GB)
Title: Cathode-ray tube-yoke platform-yoke combination and method of assembling the combination
IPC: H01J29/82
Filed: 1972-05-23
Abstract: 1389424 Electron beam magnetic deflecting apparatus RCA CORPORATION 23 May 1972 [14 Jan 1972] 24105/72 Heading H1D A magnetic deflection yoke is mounted on a platform which is secured to a cathode-ray tube by means of an adhesive. In Fig. 3 the platform 29 is provided with four spaced recesses 36 into which adhesive 39 is injected through respective passageways 37 to secure it to the neck of the tube. Four pairs of circumferentially extending lugs 43 on the platform 29 are adapted to be secured with adhesive 42 within troughs 45 provided in a housing 32 for the deflection yoke 31. The adhesives are preferably hot-melt thermoplastic materials and should remain solid at the respective operating temperatures of 50‹ and 100‹ C. but melt below the temperature (150‹ C.) at which damage to the yoke or tube would occur. In manufacture the yoke 31 is supported within its housing by flexible hooks 41 and mounted in a test rig around a colour tube with its attached platform 29. Whilst the tube is operating, the yoke is adjusted axially to align the colour centres, rotated until the raster is aligned with horizontal and vertical axes, translated vertically to superimpose the vertical and horizontal raster lines for each colour, and translated horizontally to equalize the raster size of each colour; the yoke may also be tilted to optimize the above conditions. The tube and yoke are then moved to a vertical position with the neck downwards whilst adhesive 42 is injected into the troughs 45 and also into passages 50 to secure the housing 32 to the platform 19 and also to the yoke 31. After the adhesive has solidified the tube may be retested before being removed from the test rig. In a modification (Figs. 4 and 5, not shown) the platform has a continuous circumferential recess bounded by thin side walls which can flex to allow thermal expansion or contraction. In a further modification (Figs. 6 and 7, not shown) the deflection yoke is adjustably mounted on bolts which extend from the platform.
Patent GB-457355-A (GB)
Title: Improvements in poppet valves
IPC: F01L3/02
Filed: 1935-08-29
Abstract: 457,355. Valve accessories. BULLOCK, F. E., Cotherstone, Warwick Avenue, Coventry. Aug. 29, 1935, No. 24112. [Class 135] The head a of a poppet valve is secured to a separate valve stem b by means of an intermediate divided conical bush c in a similar manner to that described in Specification 422,723 for the attachment of a spring abutment collar to a valve stem. The valve head a has a recess a<1> tapered to fit to the bush c and tappered in such a direction that the bush tends to grip the stem in service. The bush c has an inner annular rib c<1> loosely engaging a corresponding groove b<1> in the stem so as not to prevent the firm grip of the bush on the stem above and below the groove. A metal plate d pressed into position to engage the undercut upper edge of the recess a<1>, bears on the upper end of the bush but not on the stem. When used in internal-combustion engines, the head a may be of some heatresisting metal or alloy such as silichrome or nickel steel whilst the stem b is of mild steel.
Patent GB-615015-A (GB)
Title: Improvements in or relating to devices for actuating well pipe slips
IPC: E21B19/10
Filed: 1946-08-14
Abstract: 615,015. Apparatus for controlling well pipe slips. BYRON JACKSON CO. Aug. 14, 1946, Nos. 24141 and 24142. Convention dates, Oct. 25, 1945, and April 9, 1946. [Class 85] Pipe slips are inserted and removed from the master bush of a drill table by a ram vertically reciprocating the arm from which they are supported. The arm 40 from which the slips 79 are pivotally supported is itself pivotally mounted on a swivel plate 36 mounted on a base 14 secured to a power cylinder 4 and a guide cylinder 5. The operating portion of the power cylinder consists of a closed tube 12 which is sub-divided into two chambers 24, 25 by a piston 23 secured to concentric tubes 16, 17, which are welded to the base. The passages formed by these tubes permit fluid to enter either of the chambers 24, 25 so that the arm 40 is vertically reciprocated, the distance being limited by a rod 88 carrying a stop-nut which engages a bracing plate 6, but being sufficient to ensure that the slips are lifted clear of the drill table. Movement of the arm 40 is normally prevented by a spring- operated latch 41, which is carried on the base 14 and engages a pin 46, which pin will shear if excessive upward strain is placed on the arm 40. The slip-carrying end of the arm is forked, forming a circular portion 55, the remainder of the circle being completed by a portion 56 pivotally attached to the portion 55 and locked thereto by a pin 58. These portions rotatably support portions 67, 68 of the slip carrier on rollers 65. A guide plate 85 is provided on the drill table for assisting the slips into the master bush. To prevent the slips being lowered if the fluid pressure on the ram fails, a locking device is fitted and comprises a block 103 through which passes a tube 128 secured to a rod 88. The block is constrained in position within a housing 102 by springs 104, 105 acting on one side, and the pressure in the chambers 24, 25 acting on the other side. Thus, should the fluid pressure fail when the slips are in the raised position, the springs move the block and prevent the tube 128 from passing through a hole 126. When the carrier ring is opened to pass around. a drill tube, the slip carrying portions 67 and 68 are positively attached to the portions 55, 56 by U-shape locking members. The pivot 75 of each slip arm 78 has flattened portions thereon which enable the arm to be removed when brought into alignment with the slots in the brackets attached to the carrier ring.
Patent GB-1270041-A (GB)
Title: Electromagnetic voltage regulator switches
IPC: H02J7/22
Filed: 1970-05-20
Abstract: 1,270,041. Electromagnetic relays. DUCELLIER & CIE. 20 May, 1970 [21 May, 1969], No. 24332/70. Heading H1N. An electromagnetic switch of the kind used for voltage regulation has a biasing spring blade 5 mounted on the armature 4 and engaging an adjustable cam 10 similar to that of Specification 832,393 is provided with a compensating bimetal strip 11 mounted on the armature 4 and disposed in spaced relationship to the spring blade without any point of contact therewith but linked thereto at their free ends by an attachment member 12. The member 12 fits in notches 5b, 5c, 11b, llc, of the spring and bimetal strip.
Patent GB-1523431-A (GB)
Title: Variator with a profiled driving belt
IPC: F16H9/12
Filed: 1977-06-10
Abstract: The driving device has a driving belt (3) with metal transverse elements which has a trapezoidal cross-sectional profile and runs between pairs of tapered metal belt pulleys (1, 2). The spacing of the belt pulleys (1, 2) is variable. The lateral end faces of the transverse elements of the belt (3) and/or the surface areas of the belt pulleys which come into contact with the transverse elements during operation have a porous structure. The thickness of the porous surface layer is at least 1/2 mm. The porous surface prevents the formation of an oil film at the points of contact between the belt and the belt pulleys, which could lead to unwanted slip. This driving device is preferably used as a power transmission with a variable transmission ratio. <IMAGE>
Patent GB-677442-A (GB)
Title: Process for the manufacture of substituted compounds derived from naphthalene
IPC: C07C45/69
Filed: 1949-09-22
Abstract: 5 : 8-Dialkoxy-2-tetralones are prepared from benzoquinone and 2-alkoxylbutadiene by carrying out a diene synthesis in neutral medium to give a 6-alkoxy-tetrahydro-naphthaquinone, treating the latter with an alkylating agent in an alkaline medium to form a 1 : 4 : 6-trialkoxy - dihydronaphthalene and hydrolysing the latter with acid; the alkoxy groups have not more than five carbon atoms. In the example, 1 : 4 - diketo - 6 - methoxy - 1 : 4 : 5 : 8 : 9 : 10 - hexahydronaphthalene is made from quinone and 2-methoxybutadiene and is converted successively into 1 : 4 : 6-trimethoxy-5 : 8-dihydronaphthalene and 5 : 8-dimethoxy-2-tetralone.  According to the Specification as open to inspection under Sect. 91, any substituent may be present in the 6-position that can be decomposed to give a keto group; the corresponding substituted butadiene is used as starting material.  It is also stated that 5 : 8-diacyloxy-2-tetralones such as 5 : 8-diacetoxy-2-tetralone may be made by an analogous process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-598860-A (GB)
Title: Apparatus for treating packaged filamentary material with liquid
IPC: D06B5/16
Filed: 1945-09-21
Abstract: <PICT:0598860/IV/1> An apparatus for use in the liquid treatment of filamentary packages in submerged condition, comprises a vessel 2 for the liquid, one or more hollow arms 3 the outer fluted surface of which supports a plurality of packages 5 internally, and through which the liquor may flow from the inner to the outer surface of the packages, or vice versa, the arms being constructed and swingably mounted on a horizontal axis 15 for submerging the supported packages in the liquid or alternatively swinging the supported packages clear of the liquid.
Patent GB-949143-A (GB)
Title: Sheared mink fur
IPC: C14B15/00
Filed: 1962-06-26
Abstract: Mink is shaved until the guard hairs and under hairs are between one quarter and one half of an inch in length.  Preferably they are cut to a uniform three-eighths of an inch.
Patent GB-956766-A (GB)
Title: Improvements in or relating to control means for washer boxes
Inventor: HIRST ARTHUR ALGERNON
IPC: B03B5/24
Filed: 1959-07-17
Abstract: 956,766. Valves. COAL INDUSTRY (PATENTS) Ltd. July 18, 1960 [July 17 1959], No. 24657/59. Heading F2V. [Also in Division B2]. In means for controlling automatically, in response to the feed or cessation of feed, the pressure of air supplied to a washer box of the air pulsated type for washing coal (see Division B2), an actuating pressure is supplied to a diaphragm motor 42, 43, 48 connected to a blow-off valve 38 which regulates the outlet pressure of a positive displacement blower. The motor is biased in opposition to the actuating pressure by a spring 10 and is connected through an adjusting nut 17 to a spindle 21 which moves under the actuating pressure to close the blow-off valve plate 38 on to a seat 20. The spindle acts through a compression spring 50, adjustable by shims 101-103 and engages an abutment X which is part of an assembly loosely mounted on the spindle 21 and including a sleeve 22 connecting the valve plate 38 to an adjustable loading weight 11. This weight may be replaced by a loading spring. Under idling conditions of the washer box, when the actuating pressure on the diaphragm is reduced to a minimum, e.g. to atmospheric pressure, the forces acting on the valve and motor are arranged to be in balance at a position wherein an idling delivery pressure of the blower is maintained within 10% above or below a predetermined pressure.
Patent GB-519933-A (GB)
Title: Improvements relating to products derived from molten metal
IPC: B22D11/06
Filed: 1938-08-22
Abstract: 519,933. Building up articles by spraying. MERLE, J. M. Aug. 22, 1938, No. 24668. Drawings to Specification. [Class 83 (iv)] A continuous product or an article of any desired shape is made by impacting metal particles which have crystallized spontaneously from molten metal which has been rapidly cooled below the freezing point. These products may be made by using the apparatus described in Specification 519,932.
Patent GB-765364-A (GB)
Title: A new or improved wire forming machine
IPC: B21F45/00
Filed: 1954-08-25
Abstract: 765,364. Making swivels. VINCENT, C. B. Nov. 25, 1955 [Aug. 25, 1954], No. 24689/54. Classes 83 (2) and 83 (4). [Also in Group XXIII] Bending.-A wire-forming machine' comprises a stationary circular table with means for feeding wire or strip to a region adjacent the centre and a number of angularly-spaced tools actuated by cams carried by a ring arranged to rotate or oscillate angularly about the periphery of the table. The machine described is for making swivels. The circular table 1 is carried, preferably in a vertical position, by extending from brackets 3 upstanding from a base 4 housing a driving-motor 6. Around the table is a ring 5 which is a running fit on the outside edge of the table and which is formed with three T-section slots by which tool-actuating cams are clamped to the ring. An annular T-section slot 25 is formed in the front face of the table to take carriers 26, 27 and 28 for the wire-working tools. Through a belt 10, worm 12 and worm-wheel 13, the motor 6 drives a shaft 14 which carries a crank disc with a diametral slot in which is clamped a crank-pin 18 having a slide 21 fitting between two bars 20 extending across the back of the ring 5. Thus, rotation of the disc causes an oscillation of the ring about the table, relatively slowly in the direction of the working stroke with a rapid return. Wire is fed to the centre region of the table by pawl-driven intergeared rollers which may also alter the cross-section of the wire if required. In operation, the ring 5 begins to move in the direction of the arrow from the position shown in Fig. 1 so that a stop 80 engages a roller 43 which, through a ratchet and gears 37, 38 rotates the feed rollers to feed the wire stock 81 to the position shown in Fig. 4 (a) adjacent three pins 70, 71 and 72 projecting from the centre of the table. A cam 65 then racks a lever 62 so that the wire is clamped by a finger 66 while a saw 48 makes an oblique cut, Fig. 4 (b), under the action of a cam 55 rocking a saw-carrying frame 50. The finger 66 then releases the wire as a tool 82 on the slide 30 shapes it, as shown in Fig. 4 (c), under the action of a cam 83 engaging a roller 84. Tool 82 continues to hold the work while two further tools 85, 86 on slides 31, 60 bend the ends round pins 70, 72, Fig. 4 (d), under the action of cams 87, 88. A final closing action, Fig. 4 (e) is effected by an arm 90 pivoted to a carrier 28 and actuated by a slide 32. The return stroke of the ring withdraws all the tools while a cam 77 momentarily withdraws the pins 70, 71 and 72 to allow the completed swivel to fall clear.
Patent GB-278179-A (GB)
Title: Balanced stop valve device
IPC: F01B25/00
Filed: 1926-10-06
Abstract: 278,179. Cockburn,s, Ltd., and Mac- Nicoll, D. Oct. 6, 1926. Stop valves; closure members.-A stop valve device comprises oppositely movable coaxial lift valve members of equal area adapted to functionas pistons, pilot valves being provided to connect the spaces behind the pistons with that between the main valve members. The valve members 11, 12 which co-operate with seats 8 secured to a partition 5 by flanged rings 9 and studs 10 have skirts 13, 14 slidably fitted in cylindrical recesses 15, 16 formed in the covers 17, 18 and are carried by spindles 19, 20 having right and left-handed threaded parts 19<1>, 20<1>. The threaded parts of the spindles are engaged by elongated nuts 25, 26 secured to toothed wheels 39, 40 and supported by non-rotatable sleeves 33, 34 acted on by springs 31, 32 housed in casings 27, 28. The wheels 39, 40 are engaged by pinions 41, 42 on a common actuating shaft 43 provided with a hand-wheel 46. Rotation of the spindles 19, 20 is prevented by collars 49, 50 engaging guide surfaces 47, 48 on the covers 17, 18 and a nut 53 is fitted to the spindle 19<1> to limit the movement of the hand-wheel. Passages 54<1>, 55<1> leading to the recesses 15, 16 and a passage 66 leading to the space between the main valve members are controlled by a double faced lift valve 56 mounted on a screwed spindle 58 actuated by a non-reciprocating nut 62 and hand-wheel 63.. The double faced valve may be replaced by two separately actuated valves. According to the Provisional Specification, the pilot valves may be arranged to seat on the main valves which are actuated by levers connected together by a screwed operating spindle having threads of opposite hands. In a modification the pilot valves are arranged externally of the stop valve casing and are operated from connections with the actuating spindle. Non-return valves may be arranged between the cylindrical recesses and the inlet and outlet sides of the stop valve.
Patent GB-620506-A (GB)
Title: Improved filter-carrier for sprayers
IPC: B05B15/00
Filed: 1946-08-20
Abstract: 620,506. Filters. MEISTER, U. Aug. 20, 1946, No. 24818. Convention date, Oct. 6, 1942. [Class 46] [Also in Group XXIX] A filter 7 enclosed in the handle 1 of a sprayer has at its lower end a frusto conical bottom piece 8, resting in a like shaped cup 2" formed in the filter chamber, the piece 8 having helical grooves 9 or fins through which the liquid enters from 3. The bottom piece may be separate from the filter. The grooves or fins may be formed in the cup 2<SP>11</SP> instead of in the piece 8.
Patent GB-741938-A (GB)
Title: Selective signalling equipment incorporating synchronised distributors
IPC: H04Q9/04
Filed: 1952-10-03
Abstract: 741,938. Electric selective signalLing systems. STANDARD TELEPHONES & CABLES, Ltd. Oct. 3, 1952 [Oct. 10, 1951], No. 24849/52. Class 40(1) In a multichannel A.C. operated selective signalling apparatus each receiving terminal circuit comprises a pair of parallel branches respectively including in series indicator lamps 7, 17; slow acting relays 8, 16; normally closed switches 9, 15, and oppositely poled halfwave rectifiers 13, 14. The junction of the lamps is connected to the junction of oppositely phased secondaries 5, 12 of an A.C. fed transformer 20, while the opposite junction of the rectifiers is connected to a contact 3 of a multiple commutator all of whose contacts are connected to other similar receiving circuits and whose slider 4 is connected to a line 2. Series assisting rectifiers 10, 19 in series in the normally open contacts 11, 18 of relays 8, 16 interconnect the relay and lamp junctions of the parallel branches while the junction of the two rectifiers is connected to the free end of secondary 12 and the free end of secondary 5 is connected to a common return line 1. Each transmitting terminal circuit comprises a parallel branch system identical to that of the receiving terminal circuit, in which the components are denoted by primed references and switches 9<SP>1</SP>, 15<SP>1</SP> are normally open, connected to a contact 3<SP>1</SP> of the commutator whose slider 4<SP>1</SP> is connected to the free end of line 2. Closure of transmitter switch 9<SP>1</SP> in the right-hand branch allows positive A.C. halfcycles to pass through lamp 7<SP>1</SP>, relay 8<SP>1</SP>, rectifier 13<SP>1</SP>, switch 9<SP>1</SP>, line 2, rectifier 13, switch 9, relay 8 and lamp 7 so that relays 8, 8<SP>1</SP> operate and close local lamp illumination circuits over contacts 11, 11<SP>1</SP> in which by the presence of oriented rectifiers 10, 10<SP>1</SP> the lamp current is allowed to flow in the same direction as the relay energization current without interfering with the independent transmitter-receiver circuit constituted by the left-hand branches which is operable on negative A.C. halfcycles over the same line pair by closure of switch 15<SP>1</SP>. Fusion of either indicator lamp 7, 7<SP>1</SP> or 17, 17<SP>1</SP> breaks the appropriate relay operating circuit and thus extinguishes the corresponding remote lamp without interference with the alternative signalling circuit. The transmitters and receivers are interchangeable and . equivalent; switch pairs 9, 15 and 9<SP>1</SP>, 15<SP>1</SP> being respectively open at the transmitter and closed at the receiver, so that two circuits are available for each bar of the commutator, whose sliders are synchronously driven by a stepping switch or motor over the range of contacts 3, 3<SP>1</SP> in such manner that the change-over takes place at zero voltage of the exciting A.C., to reduce sparking at the contacts.
Patent GB-146020-A (GB)
Title: Improvements in open hearth furnaces
IPC: F27B3/26
Filed: 1919-10-10
Abstract: 146,020. McLain, D., and Carter, F. Oct. 10, 1919. Open-hearth furnaces.-In a reversible furnace heated by liquid fuel, air from one or other of the regenerators 13 passes into the furnace through the corresponding vertical air-port 18 and strikes against the furnace roof, which it tends to cool and at the same time becomes further heated before impinging on the bath of molten metal. Inclined oil-burners 20, inserted through apertures 19 in the end walls of the furnace and arranged across the path of the air, direct the fuel to the centre of the furnace where it meets the air. The working-chamber is preferably made high and narrow with contracted ends having the ports 18 extending to the full width.
Patent GB-440506-A (GB)
Title: Improvements relating to percussive tools
IPC: E21B6/06
Filed: 1934-08-30
Abstract: 440,506. Percussive drills. CONSOLIDATED PNEUMATIC TOOL CO., Ltd., 170, Piccadilly, London, and SLATCHER, A. G., 13725, Dexter Boulevard, Detroit, Michigan, U.S.A. Aug. 30, 1934, No. 25000. [Class 124] The ratchet ring 15 of a percussive drill twist mechanism has an annular groove on its outer surface which engages the wedge 23. This is pressed forward by the spring 25, the pressure of which can be adjusted by the screw 22.
Patent GB-643256-A (GB)
Title: Improvements in electric furnaces
IPC: H05B3/64
Filed: 1948-09-25
Abstract: 643,256. Electric furnaces. ELLIS, C. C., SIMS, C. W., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. Sept. 25, 1948, No. 25079. [Class 39(iii)] A small electric furnace of refractory material has a resistance winding 2 of strip material crimped or corrugated transversely of its length and wound on the surface of the chamber, the whole being covered with cement 3 to enclose the strip.
Patent GB-585856-A (GB)
Title: Improvements in or relating to pens or hutches
IPC: A01K1/035
Filed: 1944-12-14
Abstract: 585,856. Doors for pens or hutches. WILKINS, E. H. J. Dec. 14, 1944, No. 25088. [Class 5 (ii)] [Also in Group XXV] In a pen or hutch, for rabbits, pigeons, poultry, and the like, provided with a vertically sliding door with vertical wire bars, one of the bars, preferably centrally located, is provided with a catch adapted to snap under a fixed horizontal member of the pen when the door is closed, to prevent it from being lifted by an enclosed animal or bird. Fig. 1 shows a door 15 slidable on vertical side wires 18, 19, the wire 22 of the door having an inwardly directed ratchet-shaped kink 23 adapted to snap under the fixed horizontal wire 14 forming part of the fixed wire closure to the upper part of the pen front. In a modification the kink is replaced by a loop in the wire.
Patent GB-722637-A (GB)
Title: Improvements in or relating to sprag and carrier assemblies and one-way engaging devices employing the same
Inventor: GAMBLE DAVID EDWIN
IPC: F16D41/07
Filed: 1952-10-07
Abstract: 722,637. One-way clutches. BORG-WARNER CORPORATION. Oct. 7, 1952, No. 25105/52. Class 80 (2). A cage 30 for the sprags 33 of a one-way clutch is formed of resilient material. The sprags are received in apertures in the cage the resiliency of which is arranged to tilt the sprags into engagement with driven and driving members A, B. The lateral edges 34, 35 of the sprags may be recessed Figs. 3, 4 (not shown) for the reception of corresponding retaining projections of the cage member 30. The end surfaces 38, 39 are formed arcuate about centres spaced widthwise of the sprags so that the diagonal lengths differ causing the wedging angle to increase as the grip tightens.