baber/WOPTO huggingface dataset:
Patent GB-1452709-A (GB)
Title: Automatic safety gatevalve
IPC: F16K31/163
Filed: 1974-12-10
Abstract: 1452709 Valves ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES (ELF) 10 Dec 1974 [11 Dec 1973] 53362/ 74 Heading F2V A hydraulic safety gate valve has a gate 5 in a valve casing 1 and two pistons 14, 16 with piston rods 13, 15 arranged on a common axis orthogonal to the direction of sliding of the gate and means such as connecting rods 20, 21, 22, 23 for connecting the piston rods to a valve rod 7 whereby axial displacement of the pistons produces longitudinal movement of the valve rod. Equal length connecting rods may be pivoted on the valve rod at 19 and to respective piston rods at 24, 25. The piston rods are guided by bars 26a, 27a in ways 28 (29) Fig. 5 (not shown). The pistons may alternatively be contained in a single cylinder as in Figs. 3, 4, 6 (not shown). Springs 18a, 18b located between each piston and its cylinder end or between pistons as in Fig. 4 (not shown) operate the valve on loss of hydraulic pressure in the cylinders.
Patent GB-1166496-A (GB)
Title: Vehicle Suspensions
Inventor: WILLETTS ELWOOD HUGHES
IPC: B60G5/06
Filed: 1966-12-01
Abstract: 1,166,496. Vehicle suspension. E. H. WILLETTS. 1 Dec., 1966, No. 53868/66. Heading B7D. A vehicle suspension comprises a pair of levers extending radially from a common pivot axis and connected by an elastic bushing, connection means between the upper end of each lever and the vehicle frame, and connection means between the lower end of each lever and the vehicle wheels, at least one of the connection means comprising a shackle. In Figs. 1, 2 a rubber bushing 18 is bonded between a cylindrical member 19 extending through one lever 4 and a co-axial cylindrical member 20 extending between two spaced similar parts 3a forming the other lever 3. Wheel spindles 10, 10a project respectively from the lever 4 and from a tube 11 connecting the spaced parts 3a of the lever 3. A shackle 5 connects the lever 3 to a bracket 2 on the frame 1, la, and a hinge pin 34 directly connects the lever 4 to brackets 2a on the frame. In Fig. 4 tandem axles 21<SP>1</SP>, 21<SP>11</SP> are pivoted at each end to levers 22<SP>1</SP>, 22<SP>11</SP> which are interconnected by a rubber bushing 18<SP>1</SP> and each have an upwardly curved arm 45 connected by a shackle 52, 54 to a bracket 2<SP>1</SP> on the frame. In a modification, Fig. 5 (not shown), only one lever 22<SP>11</SP> has an arm 45 connected by a shackle to the bracket 2<SP>1</SP> and the other lever 221 has an arm pivoted directly to the frame.
Patent GB-1221256-A (GB)
Title: A device for making sausage-like briquettes
IPC: B30B11/22
Filed: 1968-11-15
Abstract: 1,221,256. Moulding cement briquettes. POLYSIUS A.G. G.m.b.H. 15 Nov., 1968 [2 Aug., 1968], No. 54259/68. Heading B5A. Cement briquettes are moulded by extruding cement paste 11 through orifices 4-9 in a circular plate 1, by means of a pressure member 3 which rotates about an axis 2 concentric with that of plate 1; the axes F4-F9 of the orifices 4-9 being inclined to the radial direction and intercepting the pressure applying surface 10 of member 3 at right angles thereto. The orifices may be lined with plastics inserts, or may be formed in bushes the axes whereof are normal to the surface of the curved plate.
Patent GB-1530670-A (GB)
Title: Endosseous implants
IPC: A61C13/30
Filed: 1976-12-30
Abstract: The implant contains a metallic base material (1) and a layer (4), which has been applied thereto by thermal spraying, of hydroxyapatite or a mixture of hydroxyapatite and ceramic materials. It is optionally possible for a layer, which is likewise thermally sprayed, of a binder and another layer of ceramic material to be present between the base material surface and the said layer. The implant has excellent strength properties, in particular high impact strength, and furthermore good affinity for tissues of living beings. <IMAGE>
Patent GB-1137890-A (GB)
Title: Improvements relating to compensating yarn brakes
IPC: D03D47/00
Filed: 1965-12-29
Abstract: 1137890 Yarn-tensioning apparatus GLANZSTOFF A G 29 Dec 1965 [29 Dec 1964] 55084/65 Heading DID [Also in Divisions F2 and H2] Means for keeping the tension constant in a yarn by producing a braking-pressure which is continuously variable in dependance on the position of a yarn feeler arm comprises a yarn guide roller associated with a reversing roller and braking means operating on the guide roller and actuated by the movement of a yarn feeler arm. In Fig.4, a yarn roller 3 is rotatably mounted on a shaft and has at one end an annular braking- surface 10 against which a pair of pivoted, spring- urged, brake shoes 14, 15 can be made to bear as a cam 17 is rotated. Also mounted rotatably on the shaft is a feeler arm 24; this has a yarn-guide 38 at one end and is connected at the other end by a spring 23 to a lever 19 connected to the cam and, by an adjustable spring 21, to a fixed part. When the yarn tension is at its lowest value, the arm is in its uppermost position, and spring 23 allows spring 21 to exert its maximum effect on lever 19 so that the cam is rotated fully to engage the brake. When the arm is pulled down by increased yarntension, the effect of spring 21 on the brake shoes is gradually weakened, until, with the arm in its lowermost position, the brake is fully released. In Fig.5, the roller has at one end a housing for a ring 27 of magnetic or electrically-conducting material and the arm is connected to a housing containing permanent of electromagnets 29 working on a thread 32 of steep pitch on the shaft. As the arm rotates, the magnets are moved correspondingly towards or away from the housing on the roller. The other end of the feeler arm is, in this case, anchored to a fixed part by an adjustable spring. The working tension is set by adjusting the gap between the roller housing and the magnets where these are permanent, or, in the case of electromagnets, by changing the magnetizing current. In another form, the width of the gap between the roller housing and the electromagnets is constant, and the exciting current of the electromagnets is varied according to the position of the arm. The roller may have a non-slip surface or may be used in conjunction with a reversing-roller. The apparatus is described in an arrangement where the roller is used in conjunction with a reversing roller the yarn being repeatedly looped around the two, and reaching the rollers via a fixed yarnguide. The reversing roller may be replaced by a second guide roller, in which case the yarn is prevented from slipping by providing a roughened surface on both rollers.
Patent GB-1279264-A (GB)
Title: Calender roll with heating passages
IPC: B29C43/24
Filed: 1969-11-11
Abstract: 1279264 Heated calender rolls KRAUSS MAFFEI AG 11 Nov. 1969 [29 Nov 1968] 55157/69 Heading B5A [Also in Divisions F2 and G3] Eccentricity of heated calendering rolls for thermoplastics is avoided by heating different parts of the roll surface to different temperatures to achieve concentricity. The roll 1 is heated by liquid or vapour circulated through longitudinally extending passages 6, via oblique bores 9, 10 respectively connecting to a centrally disposed outlet 13 and an inlet 12, the differential heating being achieved by differentially throttling the flow through different passages 6 in the region adjacent end closure plugs, at 7 and 8, and the connection with the bores 9 or 10. The differential throttling may be achieved by enlargement of the passages 6, by longitudinally or transversely grooving the passages 6, by threading the passages 6, or by constricting the passages 6 by means of tubular inserts, or by throttle devices associated with the closure plugs and preferably obstructing the inlet to the bore 9. Where single inlet and outlet bores 9, 10 are provided to an inter-connected group of passages 6, a throttle may be provided adjacent the inlet, or adjacent both the inlet and outlet bores. The throttle may comprise a cylindrical extension of an end closure plug partially obturating the passage 9 at an undulatory bevelled end thereof, and the alignment whereof is indicated by a mark exteriorly of the plug, or as shown in Fig. 6, may comprise the linearly bevelled end 25 of a member sealed at a packing 31 to the closure plug 28, to which it is connected by a bolt 26 and locking nut 27 permitting rotational adjustment of the throttle to partially or completely obturate the passage 9. The closure plug 28 is sealed within the passage 6 at a skirt 32 thereof which is pressed against the passage wall by two dished springs against which sealing pressure is exerted by a nut 36 on the plug 28.
Patent GB-1487950-A (GB)
Title: Process for preparing cyclic phosphinic acid esters
IPC: C07F9/30
Filed: 1974-12-20
Abstract: Phosphinic acid esters of the formula I <IMAGE> in which R3 denotes an alkyl group or an optionally substituted phenyl radical and R2 represents an H atom or has the meaning of R1, are prepared by reacting phosphonous acid monoesters of the formula II <IMAGE> in which R3 denotes an alkyl radical which is optionally substituted by chlorine and R1 has the abovementioned meaning, with allyl alcohols of the formula III <IMAGE> in which R2 has the meaning given under formula I, at temperatures between 100 and 190 DEG C in the presence of free-radical formers; the alcohol of the formula R3OH is simultaneously or subsequently eliminated and the reaction products are separated off. The resulting cyclic phosphinic acid esters are intermediates for the preparation of flameproofing agents and can also be used as fire resistant additives for lubricants.
Patent GB-1164805-A (GB)
Title: Improvements in or relating to Hydraulic Fluid Pressure Operated Double Acting Rams
Inventor: ALLBRIGHT DENNIS HOWARD
IPC: F15B21/0423
Filed: 1965-12-31
Abstract: 1,164,805. Hydraulic rams. DUNLOP CO. Ltd. Dec. 16, 1966 [Dec. 31, 1965], No.55336/65. Heading F1P. A double acting hydraulic ram capable of working in high ambient temperatures, e.g. for moving control members of a jet engine, is maintained cool by a continuous flow of working fluid, e. g., the pressurized fuel supply to the engine, through at least a portion of the ram cylinder 2 irrespective of the position of the piston 4 which latter is subjected to back pressure set up in the cylinder by a flow restrictor 16 in the fluid outlet 24. The ram has first and second inlets 18, 19 in fluid connection with restrictors 16, 23 respectively. In operation fluid is supplied to both inlets 18, 19 at pressures controlled by external valve means (not shown). Flow from inlet 18 passes to the outer end of piston 4, along an annular duct 11 formed by the piston rod 6 and a a tube 12 rigidly secured to the cylinder end 3, through apertures 14 in a guide disc 13, along the tube 12 and a bore 15 heading to the restrictor 16 whereby pressure is developed at the outer side of the piston. Fluid from inlet 19 passes along an external tube 20 to an annular cylinder space 21 surrounding the piston rod 6 and then through an external tube 22 and the restrictor 23 whereby pressure is developed on the inner side of the piston 4. Outward and return movement of the piston is determined by the pressure difference between the two sides and the piston is held stationary when said pressures balance. In a modification a second tube 25, Fig. 2 (not shown), is located within the duct 11 and extends from the inner side of the piston to which it is fixed to the end of the rod 6. The tube 12 extends into tube (25).
Patent GB-1245813-A (GB)
Title: Tone ringer systems
Inventor: GOLEMBESKI JOHN JOSEPH
IPC: H04M1/00
Filed: 1968-11-22
Abstract: 1,245,813. Substation circuits; transistor amplifiers; amplitude modulator. WESTERN ELECTRIC CO. Inc. 22 Nov., 1968 [24 Nov., 1967], No. 55513/68. Headings H4K, H3R and H3T. A tone ringer comprises an audio transducer coupled to line terminals via a bandpass filter operating in the audio-frequency range and via an oscillator which responds to high voltage low frequency signals received at the line terminals by oscillating at a frequency in the pass range of the filter. The ringer is thus capable of responding to conventional low frequency (20 Hz) ringing signals or to audiofrequency (440-480 Hz) tone signals and can be used with exchanges employing either type of signals. In the filter/oscillator circuit shown input signals are applied between terminals T and R. A low frequency or D.C. input signal of sufficient amplitude causes a Zener diode D1 to break down switching a transistor Q3 to conduction effectively reducing the emitter resistance of a transistor Q1. This increases the gain of the transistor Q1 to a level at which it oscillates as a phase shift oscillator. The resultant oscillations are transmitted to the transducer via an emitter follower transistor Q2 and output terminal 21. If the oscillator is tuned to oscillate at 460 Hz and a polarityprotecting diode bridge circuit is connected at the input terminals T and R then for a 20 Hz signal input to the bridge, the oscillator oscillates during each half-cycle of the 20 Hz signal, i.e. the 460 Hz signal is modulated by 40 Hz and has a spectrum which covers the 440- 480 Hz range. For an audio frequency input signal the circuit acts merely as an amplifier, a feedback path through a filter comprising capacitors C2, C3 and C4 and resistors R8 and R9 causing the circuit to act as a bandpass amplifier. Two such bandpass amplifiers tuned to different ends of the 440-480 Hz range may be each connected to receive the input signals and their outputs may be connected via an AND gate to the transducer so that it responds only to an input covering the whole range.
Patent GB-1382413-A (GB)
Title: Apparatus for cutting frames from sheet material
IPC: B26F1/38
Filed: 1970-11-25
Abstract: 1382413 Cutting apparatus H R TURNER 8 Feb 1972 [25 Nov 1970] 56024/70 Heading B4B Apparatus for cutting frames, e.g. for photographs, from sheet material, e.g. fibreboard, comprises a base board 10 for supporting the sheet 12, an arm 18 having a blade 32 for cutting the sheet, and means 14 for pivotally mounting the arm to the base board so that the arm can be moved in a plane parallel to the sheet with the blade following a predetermined curved path on the sheet. The arm 18 is formed with an elongated slot 20 adapted to fit over a screw-threaded pin 14 secured to the base board 10. A pin 26 in the arm is arranged to move in a groove 24 formed in a template 16 which shield in contact with the sheet 12 by a threaded wheel 22. The blade 32 is mounted in a block 28 which is adjustable along the arm 18 and clamped in position by a screw 30. In a modification the arm comprises a pair of rods (36), Fig. 3 (not shown), mounted in a block (34) in which is formed the slot 20. The carriage (40) for the blade 32 is slidable on the rods and provided with a hole (44) in which a pencil may be held for marking around the opening cut in the sheet. In a further modification, the shaped slot 24 formed in the template may be replaced by a plate (48), Fig. 4 (not shown), formed with a number of holes in a selected one of which a pin in the block 34 may be pivoted, the slot 20 then being dispensed with.
Patent GB-1173577-A (GB)
Title: Improvements in or relating to New Indole Derivatives, Process for Preparing same and Therapeutic Compositions Containing them
IPC: C07D209/36
Filed: 1966-12-14
Abstract: 1,173,577. Indole derivatives. SCHARPER S.p.A. PER L'INDUSTRIA FARMACEUTICA. 14 Dec., 1966 [20 Dec., 1965], No. 56073/66. Heading C2C. Novel indole derivatives of the general formula wherein R is hydrogen or an acyl group derived from a saturated aliphatic carboxylic acid, having from 1 to 8 carbon atoms and n is an integer from 3 to 5, are prepared by reacting a hydrazine derivative of formula R-NH-(CH 2 ) n CONH-NH 2  with 1-methyl-3- hydroxy - 5,6 - dioxo -2,3,5,6 - tetrahydroindole. The hydrazine derivative is prepared by reacting an aminocarboxylic acid of formula R-NH-(CH 2 ) n COOH or an ester thereof with hydrazine. 1 - Methyl - 3 - hydroxy - 5,6 - dioxo- 2,3,5,6 - tetrahydroindole is obtained by reacting silver oxide with 3,4-dihydroxy-α-(methylaminomethyl)-benzyl alcohol. Therapeutic compositions having a hemostatic, anti-fibrinolytic and capillary-protecting action and which may be administered orally, parenterally, rectally or topically, comprise, as active ingredient, at least one compound of the above general formula and a pharmaceutically acceptable carrier.
Patent GB-1363797-A (GB)
Title: Method for purifying water
IPC: C02F1/52
Filed: 1972-12-07
Abstract: 1363797 Water purification ITT INDUSTRIES Inc 7 Dec 1972 [14 Dec 1971] 56481/72 Heading C1C A process for removing sludge from polluted water, comprises aerating and nitrifying the water in a first reactor, allowing the larger particles to settle therein, pumping the soclarified water from the first reactor together with a precipitating agent to a second reactor, which second reactor has an upper and lower sludge layer with a clear water layer therebetween into which the clarified water is pumped and allowing the contents of the second reactor to flocculate and denitrify for a sufficient period of time for the flocculated sludge to separate into the upper layer and lower layer. The denitrification is enhanced by providing a bacteria colony on a carrier in the second reactor. Further, a denitrification energy source, e.g. methanol, may be provided. The process may be carried out in the apparatus shown in Fig. 1, wherein polluted water is aerated and nitrified in biological reactor 1 and then pumped to chemical reactor 2, being delivered via slots 12 in tube 11, into the water layer 13, which layer is between floating sludge layer 14 and sinking sludge layer 15. After separation, purified water is removed via pipe 19.
Patent GB-567085-A (GB)
Abstract: 567,085. Lamps for personal wear. CONCORDIA ELECTRIC SAFETY LAMP CO., Ltd., and BLEACH, C. C. July 22, 1943, No. 11965. [Class 75 (iv)] [Also in Group XXXVII] A lamp suitable for attachment to a miner's cap, belt, or headband, comprises a metal casing 1 having an inclined wall 10 supporting an insulating block 12 which carries a bracket 19 supporting an electric bulb holder 8 and a leaf spring contact or contacts 14, 15 bearing at their lower ends on the terminal or terminals 16, 17 of the bulb 9. The bulb 9 may be of the twin or multi-filament type. The upper end of the block 12 carries spring switch arms 24, 25 connected to the positive supply lead and movable alternately into engagement with the upper ends of the contacts 14, 15 by rectangular blocks 31, 32 of insulating material mounted 90 or 180 degrees apart on a steel spindle 29 rotated by a knob or handle 33. The negative supply lead runs through a groove in the block 12 to the bracket 19. The cable 37 containing both supply leads enters the casing 1 through a gland 38 and packing ring 39 enveloped in a rubber sleeve 41. The front glass 5 and reflector 4 are secured to the casing 1 by a threaded ring 3 and rubber packing 6. The casing may be fitted with an attachment clip 46.
Patent GB-1420743-A (GB)
IPC: C09J7/10
Filed: 1971-12-08
Abstract: 1420743 Adhesive coated sheet materials EVODE LTD 6 Dec 1972 [8 Dec 1971] 56992/ 71 Heading B2E Adhesive transfer tape comprises a carrier sheet having a release surface on both sides of the sheet and a pressure-sensitive adhesive supported on that release surface having greater affinity for the adhesive as an array of discrete mutually separate area disposed thereover, the adhesive being transferable to a second surface for which the adhesive has a greater affinity by application under light pressure to the second surface. The tape can be unrolled from a roll without inadvertent transfer to the reverse side of the sheet. The release surface may be obtained by coating the substrate with a release agent such as a silicone. Alternatively plastic films having an inherently low degree of affinity for adhesives, e.g. polyethylene may constitute the release surface. The differential release characteristics of the two substrates may be obtained by coating the reverse side with the larger quantity release agent than the side to be coated with the pressure-sensitive adhesive. Alternatively the film having inherent release characteristics can be coated with release agents such as silicone on one surface. It has been found that the differential release characteristics are preferably in the proportion 2.5:1. The adhesive may applied to the backing sheet by spraying with or without a stencil, by roller coating utilising a stencil, by roller coating using a gravure or etched roller, or by coating using raised or embossed roller, by screen printing or by pressure fed nozzles distributing discrete .blobs of adhesive on the carrier sheet. A preferred pressure sensitive adhesive composition is based on acrylic or methacrylic monomers. Copolymers of acrylic esters with methacrylic esters are useful as well as interpolymers of acrylic and/or methacrylic esters, with other monomer(s). Numerous suitable monomers are listed.
Patent GB-1206176-A (GB)
Title: Apparatus for use in manufacturing laminated heads or closures
Inventor: PECHACEK RAYMOND E
IPC: B21D51/24
Filed: 1967-12-16
Abstract: 1,206,176. Apparatus for pressure laminating. HAHN & CLAY. 16 Dec., 1967, No. 57243/67. Heading B5N. An apparatus for manufacturing laminated pressure vessel heads comprises (i) pressure ram 20 adapted to force outer curved layer 11 into contact with inner layer L-shaped as a partial sphere, (ii) support arm 40 having a curvature conforming to that of said inner layer and rotatable about pivot pin 47 at the centre of the inner layer, (iii) guide means at the other end of arm 40 to maintain it a predetermined distance from the inner layer during rotation, and (iv) means mounting ram 20 on arm 40 to permit longitudinal movement in a path conforming to the curve of arm 40 and rotational movement with arm 40. The layer L is preferably hemispherical with the outer layers sectorshaped: several thicknesses of outer layers may be provided. As shown, support arm 40 comprises two I-beams 4 (only the uppermost, 42, being shown) welded together with an opening between them to allow passage therealong of carriage 25 carrying hydraulic cylinder 23 for the actuation of ram 20 via a piston. Each I- beam is provided with flanges 42a, 42b which form a track along which carriage 25 moves by means of rollers 28, 29, 30. Upward movement is effected by winch 65 and cable 66 and downward movement by gravity (until stopped at the winch). The guide means for arm 40 comprises hook 75 which engages the inner surface of layer L or, as shown, a slot in connector ring C forming part of layer L, and riding wheel 70 on bracket 71. The ram can thus be moved to operate wherever layers are being welded together, platform 78 and movable seat 82 being provided for welders.
Patent GB-1178260-A (GB)
Title: Improvements in or relating to Railway Vehicles.
Inventor: HENKEL HANS-JOACHIM
IPC: E01B29/02
Filed: 1967-12-20
Abstract: 1,178,260. Wagons for laying permanent way. MINISTERIUM FUR VERKEHRSWESEN. 20 Dec., 1967, No. 57947/67. Heading B7L. [Also in Division E1] In a track-laying train wherein stacks of pro assembled track sections are supported on platform trucks P by rows of rollers which allow the sections to be moved along the train as laying proceeds, each truck P has two removable roller assemblies 4 spaced by tie-rods 5 and supported by longitudinal end roller 9 running on transverse rails 10 so as to allow lateral swinging movement when long sections, spanning two trucks, are negotiating curves. The roller assemblies may also be supported by swivel devices 8. Undesired movement of the track sections may be prevented by chains 11 and by hinged stops, Fig. 6 (not shown).