baber/WOPTO huggingface dataset:
Patent GB-684437-A (GB)
Title: Improvements in or relating to safety-pins
IPC: A44B9/18
Filed: 1950-11-07
Abstract: 684,437. Safety pins. KUMMLI, J., MINDER, A., AALST, D. J. VAN, and OBERLAENDER, L. Nov. 7, 1950 [Noc. 7, 1949], No. 27169/50. Class 43. In a safety pin of the kind wherein the pointed leg 1 passes through a slot 3b in one side wall 3a of a point guard 3 carried by the other leg 2, a locking cap 4 is slidable on the guard 3 and is provided on its side wall 4b with a flange 5, which projects through the slot 3b almost to the opposite wall 3c of the guard 3, said flange in the inner, locking position of the cap 4 lying in the path of the point 1a but in the outer position of the cap giving free passage to said point, outward movement of the cap being limited by the flange 5 engaging part of the guard 3, e.g. the end of the slot 3b or the wall 3c if the guard has sloping walls. The flange 5 comprises a portion cut out of the side wall 4b of the cap 4 at its lower edge and inwardly bent, so that a slot 4a for passage of the point 1a is formed. The cap 4 is held in its locking position by the engagement of a boss 7 thereon with a hole 6 in the guard 3.
Patent GB-602633-A (GB)
Title: Improvements in or relating to lock closures
IPC: A45C13/06
Filed: 1945-10-17
Abstract: 602,633. Hasp fastenings. ASSELT, G. J. VAN, and LIGTHART, H. K. Oct. 17, 1945, No. 27200. Convention date, Oct. 8, 1941. [Class 44] In a hasp fastening of the type comprising a base plate with a locking arm pivotally connected thereto, and a catch plate with a hook adapted to receive the locking arm, the base plate 1 has a pair of lugs 3 spaced apart to receive the locking arm 6 between them, the pivot pin 5 bridging the lugs 3 engages in a slot 7 in the arm 6, and the edge of the catch plate 2 is folded over to form hooks 10, 11, with a slot 8 between them into which fit the lugs 3 of the base plate 1, so that the locking arm 6 may be turned to engage within the hook 11 on one side of the slot 8, and may then slide longitudinally to engage both hooked parts of the catch plate. The base plate 1 may consist of two parts hinged together.
Patent GB-1139574-A (GB)
Title: Improvements in the manufacture of adiponitrile
Inventor: LETTS JOHN AITKEN
Filed: 1965-06-28
Abstract: 1,139,574. Manufacture of adiponitrile. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 May, 1966 [28 June, 1965], No. 27274/65. Heading C2C. The still residues remaining from the manufacture of adiponitrile by heating adipic acid and ammonia under pressure in the presence of a dehydrating catalyst and distilling the product, are converted to adiponitrile by heating in the liquid phase in admixture with a boron phosphate catalyst. The process is suitably effected at 190-290‹ C., preferably under reduced pressure, and 1 part by weight of catalyst is suitably employed per 10 to 100 parts by weight of the residues. The catalyst employed may be that obtained by sintering a mixture of boric and phosphoric acids. Reference has been directed by the Comptroller to Specification 956,063.
Patent GB-408215-A (GB)
Title: Improvements in or relating to the manufacture of titanium compounds
IPC: C01G23/00
Filed: 1932-10-01
Abstract: An alkali metal titanate having the formula M2O.5TiO2 is obtained by reacting together, as by heating to, say 800--1000 DEG  C., a titanium ore such as rutile or an artificial titanium compound such as the oxide with the requisite quantity of an alkali metal compound such as sodium or potassium carbonate or sodium sulphate, or in the presence of carbon sodium bisulphate or potassium sulphate.  By digesting the titanate with sulphuric acid at say 200--220 DEG  C. and leaching with hot water, the titanium is brought into solution as sulphate from which other titanium compounds may be prepared by known methods.
Patent GB-984548-A (GB)
Title: Improvements relating to gas governors
Inventor: PINKESS LESLIE HAYDN
IPC: G05D16/06
Filed: 1962-07-17
Abstract: 984,548. Valves. EVERED & CO. Ltd. Oct. 17, 1963 [July 17, 1962], No. 27387/62. Heading F2V. In a gas governor, the peripheral margin of the movable valve member or of the seat with which it co-operates, is formed of a resilient material and is so dimensioned or constructed that it has sufficient elastic deformability to allow the valve member to be assembled into its working position and disassembled through the valve seat. The rigid valve head or stem 52, Fig. 4, may have an elastic sealing washer 57 located in a groove in the head or stem. This washer may be thickened at the root 56 and may be bonded to the head or stem 52. Alternatively a resilient seating ring 65, Fig. 5, is adapted to deform sufficiently to allow assembly and disassembly of the rigid valve head 62 therethrough. In another modification, a flat annular seating ring is assembled in a groove in the valve body. As shown in Fig. 1, the valve member is connected to a diaphragm 24 which is subject to the outlet pressure at 18 and loaded by a weight 32.
Patent GB-1011179-A (GB)
Title: Apparatus for reading information recorded on a magnetic record medium
IPC: G11B11/10
Filed: 1964-07-02
Abstract: 1,011,179. Kerr-effect read-out system. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 2, 1964 [July 16, 1963], No. 27308/64. Heading G5R. The nicols 22, 28 are crossed, so that an unmagnetized portion of the coating 12 produces no significant output at the cell 32 and for NRZ use, a birefringent crystal 27 of NH 4 .H 2 .PO 4  or of K.H 2 .PO 4  is energized by transparent electrodes 37, 38 from an oscillator 29 to modulate the Kerr rotation at a lower amplitude than the Kerr excursions. The magnetic digital pattern, Fig. 3a, whose idealized light input to the cell 32, Fig. 3b, according to known methods, produced in practice an output greatly overlaid with noise, Fig. 3c, now, as a result of the modulation, produces the idealized waveform of Fig. 3d and the 180 degrees phase-reversals at the magnetic polarity boundary transitions are readily distinguished by a phase detector (Fig. 4, not shown) driven by the same oscillator as is the modulator crystal to realise the output waveform, Fig. 3e.
Patent GB-170190-A (GB)
Title: Improvements in amplifiers for sound reproducing machines
IPC: G10K13/00
Filed: 1920-09-27
Abstract: 170,190. Booth, J. W. Sept. 27, 1920. Sound magnifying and directing appliances.- A sound amplifier for gramophones comprises a trumpet-like member B mounted upon a sounding-box A, and communicating with it by holes 17, 18. The two parts are connected at the front edge of the mouth 11, at the sound-holes by a flange 22, and at the rear as shown. The bottom plate 16 of the trumpet is preferably raised at the back above the top face of the sounding- box. Radiating sound-bars 23 and a sound-post 24 may be fitted. A sliding gate-valve 13 may also be provided. A. modification includes an inclined board to deflect the sound towards the outlet end of the amplifier. The appliance is preferably made of tin-plate and wood, and insulated by felt or rubber cushions from the machine or casing.
Patent GB-449732-A (GB)
Title: Improvements in and relating to thread rupturing arrangements in machines for winding cops, spools and the like
IPC: E03D9/08
Filed: 1935-10-04
Abstract: 449,732. Winding yarns &c. REINERS, W., 214, Bahnstrasse, GIadbach, Munich, Germany. Oct. 4, 1935, No. 27483. Convention date, Nov. 28, 1934. [Class 120 (ii)] In a cop or like winding machine in which the cops 10 are supported between stub spindles 2 and counter-heads 9, the threads or varns are ruptured between the cops and the spindles on the completion of a set, by engaging the supply thread with the spindles and imparting relative rotation to the cops and spindles. As shown in Fig. 1, a length of thread 7 is wound on the neck 6 of each stub spindle 2 at the completion of the winding, the thread of each cop passing therefrom through one of a series of notches in a collar 8 adjacent the neck. When the cops are doffed by the retraction of the heads 9 and engagement of the cops by spring jaws 14, the threads are broken between the cops and the necks of the spindles by giving a small rotation to' the spindles; the jaws 14 are then opened to release the cops which fall into a container. In another arrangement, each spindle has a notched ring rotatably mounted thereon adjacent the collar 8 so that, when the few turns of threads have been wound upon the neck 6, the threads from the completed cops pass across notches in the collars 8 and in the rings which are then engaged by rockable levers to prevent them rotating while the stub spindles are rotated to rupture the threads.
Patent GB-1273416-A (GB)
Title: Non-depolarizing curarising pharmaceutical composition of brief effect
Inventor: ARENDARVK ALEXANDR PROKOFIEVIC
Filed: 1969-05-30
Abstract: 1,273,416. Injectable muscle relaxants. INSTITUT FARMAKOLOGII I KHIMIOTERAPII AMN SSSR. 29 June, 1970 [30 May, 1969], No. 27495/69. Heading A5B. [Also in Division C2] Non-depolarizing muscle-relaxant sterile injectable pharmaceutical compositions of brief effect comprise 1, 10-bis-(N-methyl-N-(1-adamantyl)-amino) decane dimethiodide, preferably present in an amount of 0.2 to 0.3% by weight, together with a solvent such as distilled water or a physiological solution.
Patent GB-769109-A (GB)
Title: Improvements in and relating to dental stands
IPC: A61G15/16
Filed: 1954-09-23
Abstract: 769,109. Dental stands. PERKINS, A. E. Aug. 29, 1955 [Sept. 23, 1954], No. 27505/54. Class 81(2) A dental stand comprises a rectangular cabinet 1 having a flat top 2, serving as a work table, and carrying an adjustable lamp 6 and drill stand 7. It also has a shelf 4 for accessories and controls. At one side there is a projection carrying a cuspidor 14 and shelf 15, and a water tube 18 and saliva extractor 20. The various feeds and drives to the accessories are enclosed within the cabinet.
Patent GB-206833-A (GB)
Title: Improvements relating to expansion devices for liquid containing tanks and the like
IPC: H01F27/14
Filed: 1923-11-02
Abstract: 206,833. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Dann, W. M.). Nov. 10, 1922, [Convention date]. Transformers.-Tanks for oil-immersed electrical apparatus such as transformers and circuit breakers are connected to an expansion device comprising superposed connected compartments 6, 7 partly filled with liquid, the lower compartment being provided with a removable receptacle 12 containing an agent, such as phosphorus for removing oxygen and moisture. Specification 196,611 is referred to.
Patent GB-1463696-A (GB)
Title: Olefin polymer moulding compositions showing accelerated  degradation under the action of light
IPC: C08K5/56
Filed: 1974-06-21
Abstract: 1463696 Photodegradable polyolefin compositions BASF AG 21 June 1974 [22 June 1973] 27591/74 Heading C3P Moulding compositions comprise (1) a thermoplastic olefin polymer and (2) as prodegradant 0À01 to 3 weight per cent of bis(cyclopentadienyl iron dicarbonyl). The olefin polymer may be a polyethylene, polypropylene or polybutene-1. The compositions may be used to make foamed or unfoamed containers or sheets, or agricultural mulching films.
Patent GB-517494-A (GB)
Title: Improvements in or relating to twin lens and reflex type photographic cameras
IPC: G03B13/20
Filed: 1938-09-23
Abstract: 517,494. Photographic cameras. KODAK, Ltd. Sept. 23, 1938, No. 27743. Convention date, Sept. 23, 1937. [Class 98 (i)] In a photographic twin lens camera, the view-finding image is received on a field lens 17 and transmitted from there to the observation opening 22 by means of a semitransparent mirror 23 and a mirror 21. The camera 10 has an objective 11 with a focussing lever 13, and a finder lens 16, the focussing being inter- 'connected by means of a cam 33, a cam follower 34 and a pin and slot arrangement 36, 37 which automatically correct the finder lens for parallax. The field lens 17, which may be provided with an image-receiving surface or be of the brilliant type, is surrounded by a hood of members 18, 19, 20 hingedly connected together. A cover member 25 is hinged at 26 to the front member 20, and ,an arm 27 and knob 28 are connected to the mirror 23 so that the latter and the cover member 25 can be swung down against the member 2b. A portion 29 of the mirror 15 is rendered non-reflecting by unsilvering or cutting out, and a beam of light passing through a window 30, a right-angled prism 31 and a lens 32 is combined with the light from the main finder lens 16 to give a multilated image for rangefinding. The adjustment of one of the finder images is connected to the focussing mechanism of the objective. Parallax in view finding is corrected by providing a cam 33 on the focussing mechanism to engage a cam follower 34 on the ring 35 supporting the finder lens. The ring 35 is vertically adjustable in pin and vertical slot arrangement 36, 37. Both range-finder and view-finder are therefore compensated for parallax. Specification 517,495 is referred to.
Patent GB-829240-A (GB)
Title: Improvements connected with seals for hydraulic rams
IPC: B66F3/25
Filed: 1957-09-04
Abstract: 829,240. Piston packing. TANGYES Ltd., and REYNOLDS, L. A. Aug. 11, 1958 [Sept. 4, 1957], No. 27853/57. Class 122 (1). Packing for an hydraulic ram a comprises a rubber or like U-section sealing-ring b and a backing-ring located between the sealing-ring and a shoulder a<1> on the ram and comprising an outer expansible continuous metal ring d and an inner rubber or like ring e. Hydraulic pressure on the ring b acts to compress the inner ring e which thereby urges the outer ring d into contact with the cylinder c and prevents extrusion of the ring b between the ram and the cylinder. The inner and outer rings may be bonded to one another and the inner ring e may be integral with the sealing-ring b.
Patent GB-468776-A (GB)
Title: Improvements in or relating to the control of electric converting apparatus
Filed: 1935-10-09
Abstract: 468,776. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 9, 1935, No. 27871. Void. Convention date, Oct. 9, 1934. [Class 38 (ii)] A device for the supervision of the operation of a converting arrangement having a multi-anode discharge device comprises one or more oscillatory circuits which, in response to a change in the form of the ripple in the output, due to failure of one or more of the anodes, bring signalling or control devices into operation. In the form shown in Fig. 2 the choke 5 in the D.C. circuit of a rectifier is bridged by a number of series resonance circuits 8, 9, arranged to resonate, e.g. at frequencies of one, two and three times the supply frequency. Connected in circuit with each resonance circuit through a current transformer 16 is a relay 12, a rectifier 13 being preferably connected in circuit Failure of e.g. one anode will cause a ripple of the supply frequency to appear which will cause the appropriate resonance circuit to oscillate and a signal to be given. If desired the signal relay can be connected directly across the condenser 8. If a single oscillatory circuit is used, its resonance frequency is arranged and its damping adjusted so that the signal relay responds at the three frequencies. To avoid faulty release due to the normal ripple frequency a parallel resonance circuit tuned to this frequency may be connected in circuit with the series resonance circuit. In a modification, the series resonance circuit may be connected between the secondary starpoint of the supply transformer and the cathode. In a modification, Fig. 6, in which the grid circuits include discharge devices 21, supervision is obtained by means of parallel resonance circuits 8, 9 connected in series in the grid control circuit. Instead of a separate control relay being associated with each circuit the secondary windings associated with the various resonance circuits may be connected in series and a single relay used.
Patent GB-998088-A (GB)
Title: Ball race tension control device
Inventor: BARLOW GEORGE EDWARD
IPC: B65H54/54
Filed: 1961-08-02
Abstract: 998,088. Winding yarn. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 20, 1961 [Aug. 2, 1961], No. 28066/61. Divided out of 998,087. Headings DID and D1J. A device for winding yarn e.g. of polyethylene terephthalate, nylon or polypropylene from a source delivering the yarn at constant speed comprises a bobbin carrier 2 journalled in a pair of opposing ball or roller bearings 3,4 of the thrust, angular contact or deep groove type, means for applying an adjustable, predetermined loading between the balls or rollers and the surfaces on which they run such that an adjustable torque is transmitted through the bearings from the driving shaft 1 to the bobbin carrier 2. As shown the bearing 3 is located by a step in the shaft 1 while the inner race of bearing 4 is engaged by a spring urged sleeve 5 whereby the bearings are loaded. The spring 6 is adjustably compressed by means of a nut 7 on the shaft 1, a lock nut 8 also being provided. The package carrier is preferably made of a plastics material or aluminium. A graph of torque against axial loading is given and an example is given of a specific winding operation.
Patent GB-819668-A (GB)
Title: Improvements in or relating to roofing or siding sheets
IPC: E04D3/362
Filed: 1956-09-14
Abstract: 819,668. Structural metal sheets; roofs; walls. COOKSON, W. Nov. 7, 1957 [Sept. 14, 1956], No. 28188/56. Classes 20(2) and 20(4) A metal roof or wall sheet has adjacent one edge a corrugation comprising two walls 8, 9 the wall 9 remote from this edge having an inwardly projecting groove 12, the opposite edge of the sheet having an inturned lip 15 at the same level as the groove 12 to engage the groove 12 in a corrugation of an adjacent sheet. An intermediate corrugation with two grooves 19 may receive the top 29 of a flat right angled purlin clip. Alternatively the ends of a U-shaped clip may snap into the grooves. The edges 11 of the sheets may be nailed to the purlin.
Patent GB-801881-A (GB)
Title: Improvements in or relating to thermal responsive devices
IPC: G01K5/44
Filed: 1954-09-30
Abstract: 801,881. Temperature-responsive actuating-elements. STANDARD - THOMSON CORPORATION. Sept. 30, 1954 March 3, 1954, No. 28193/54. Class 64(2) To calibrate a temperature - responsive actuating element, the element is kept at the desired operating temperature and the peripheral wall 10 of a casing 9 containing an expansible material 24 and a vacuum is indented until an elastic body 12 is distorted and an actuating rod 34 in a cavity therein starts to move out of the casing, i.e. when the material 24 completely fills its space in the casing. The indentations 38 may also provide a greater area for heat transfer. The casing 9 is closed by an apertured disc 20 which retains a flange 16 of the body 12 and to which the body may be stuck. A collar 21, with a central hole tapered outwardly from the element to seal on the rod 34, is stuck to the disc 20 to prevent entry of liquid into the cavity in the body 12. Specification 801,882 is referred to.
Patent GB-750185-A (GB)
Title: Gate valves
IPC: F16K3/20
Filed: 1953-10-13
Abstract: 750,185. Gate valves. SEAMARK, L. M. C. Oct. 12, 1954 [Oct. 13, 1953], No. 28228/53. Class 135. In a gate valve, the gate is held in the closed position under a pressure greater than the fluid pressure within the valve casing and such pressure is applied through slidably mounted members, such as the pistons 17, which, in the closing movement of the gate, cause a pressure to be applied on opposite sides of the gate in a direction transverse to its opening and closing movements. As shown, the gate 6 which is hollow and of rectangular cross-section is reciprocated by an axially-fixed screwed spindle 13 rotatably mounted in the valve cover 2. The spindle 13 co-operates with a flanged nut 15 received in a transverse slot 14 in the gate. The flange 15a of the nut in the closed position bears on flanged pistons 16 mounted for vertical movement against springs 20 in a gate supporting member 5. The pistons 17 have axial passages 21 which when closed by the flange 15a cause fluid pressure to be applied through branched channels 22 to grooves in resilient rings 24 on each side of the valve. The rings 24 are mounted in grooves in the supporting member 5 and exert pressure on sealing rings 25 engaging the gate. Screw-pins 26 engage slots in the pistons to limit the vertical movement of the pistons. The gate has a bore 6a which is aligned with a through bore 3 when the valve is open. Downward movement of the gate is limited by an adjustable screw stop 10 arranged between legs 11 on the valve casing. A sealing strip 31 is mounted in compression between tne valve cover 2 and the casing 1. In a modification the pistons 17 are mounted in the valve casing proper and not in the supporting member 5.
Patent GB-323273-A (GB)
Title: Improvements in and relating to the control of the working steam in high-pressure locomotives with interstage superheating
IPC: F01K7/02
Filed: 1928-10-02
Abstract: 323,273. Marks, Sir G. C., (Schmidt'sche Heissdampf-Ges.). Oct. 2, 1928. Compound engines; steam supply, methods of.-In a locomotive having a high-pressure firebox boiler 1, a multitubular low-pressure boiler or feed heater 6, and a heater 3 in which interstage steam is heated by high pressure steam superheated in superheaters 2, 5 before and after passing through the heater, to prevent overheating of the superheaters when the steam supply valve 10 is closed, the steam is allowed to pass through a valve 14 under the control of the driver into the water space of the low-pressure boiler. Low-pressure steam from the boiler 6 may be mixed with the interstage steam before it enters the heater, the supply of low-pressure steam being regulated by a valve 13 operated by the driver either directly or by connecting the valve lever to the engine valve-gear lever.
Patent GB-704056-A (GB)
Title: Tracer controls for machine tools
Inventor: GUSHING NAGLE VINSON
IPC: B23Q35/18
Filed: 1952-11-10
Abstract: 704,056. Copy-turning. MONARCH MACHINE TOOL CO. Nov. 10, 1952, No. 28279/52. Class 83 (3). [Also in Group XXIX] A copying machine tool, such as a lathe, comprises a headstock 16 and tailstock 20 supporting work 12 between centres, a carriage 28 fed longitudinally by a lead screw 30, a tool slide 32 movable on the carriage and an air-discharge head 44 attached to the slide, the tracer-head being supplied with air through a regulator 48 and orifice 50 and, by the deflections of its feeler in engagement with the pattern 42, varying the escape of air to atmosphere so that the variation of pressure in ,the space 58 of a diaphragm-controlled valve 56 controls the supply of hydraulic fluid to the tool-slide piston 38. The tool slide is at a fixed or adjustable angle to the carriage movement. Specification 660,112 is referred to.
Patent GB-509660-A (GB)
Title: Improvements in or relating to means for trapping or cutting yarns in dubling or twisting machines
IPC: D01H13/16
Filed: 1938-09-30
Abstract: 509,660. Take - up and yarn - trapping means for twisting &c. machines. OWENS & CO., Inc., H. Sept. 30, 1938, No. 28490. Convention date, Aug. 10. [Class 120 (ii)] In spinning, doubling, twisting, winding or like machines operating upon two or more strands or yarns, cutting or trapping means for individual yarns actuated upon slackening or breaking by guide means engaged by individual yarns, in the manner as described in Specification 475,748, are operated by yielding means simultaneously to break all the yarns upon slackening or breaking of any one. In the arrangement shown in Fig. 3, a pivoted plate 58 operates through spring means 48a on the trapping-means 26a when actuated by one of the yarn fingers 30a, and in the arrangement shown in Fig. 7, the plate 58 is slotted to engage the pivot to provide the desired yield. The fingers 30a are adapted to take up normal slackness and are provided with involute operating-surfaces to raise the plate 58 at constant speed.