baber/WOPTO huggingface dataset:
Patent GB-1216679-A (GB)
Title: Improvements in or relating to the production of glass having desired surface characteristics
IPC: C03B18/14
Filed: 1967-10-23
Abstract: 1,216,679. Treating glass surfaces. PILKINGTON BROS. Ltd., D. G. LOUKES and W. R. MALTMAN. 19 March, 1968 [23 Oct., 1967], No. 48049/67. Heading C1M. In a method of producing glass having desired surface characteristics, a face of the glass is brought into contact under oxidizing conditions with a material which modifies the glass while it; is sufficiently hot to be modified under those conditions, the glass temperature being above the melting point of the material, the oxidizing conditions being regulated to control the migration of an element from that material into that face of the glass. Preferably the modifying material is a molten metal or molten metal alloy. Flat glass 42 is produced by the development of continuous ribbon 30 by the- "float" method. To impart desired characteristics to that surface of the ribbon not in contact with the " float." " bath a body of molten metal ormetal alloy 31 is located in contact with thatsurface of-the-ribbon. The body 31 clings to a locating member 32 comprising integral side and walls 34-36 and a roof 38 defining an enclosed space above the molten body. 30 which is isolated from the " float " chamber atmosphere. An oxidizing atmosphere, e.g. 1% O 2 , 99% N 2 , or one containing steam, hydrogen and nitrogenis controllably passed through the enclosed space above the body 30. Where the resultant glass sheet 42 is to be used for a mirror molten bis muth, or a copper/bismuth alloy in which the copper migrates into the glass surface may-be used. Alternatively alkali metal alloys, e.g. lithium/tin or sodium/tin may -be used to give controlled entry of lithium or sodium into the glass surface. Titanium alloys are also used In an alternative: embodiment a molten layer 43 of an oxide constituent metal is floated on the surface of the molten metal or metal alloy body 30, and is confined in a conducting member. A controlled current is passed through the body 30 and the molten layer 43 to control the oxygen movement in the layer 43. Thus with molten bismuth the layer 43 would be bismuth oxide. Where desired, after the migrant element has been taken up by the glass surface the metallic stratum may be developed by exposure to a reducing atmosphere. In the case of " float " glass this can be the. " float" tank atmosphere. The invention may be used to treat any form of glass sheet, pressed glassware; e.g. hollow glass blocks, electrical insulators and television tube face plates.
Patent GB-1067175-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02D1/04
Filed: 1962-12-21
Abstract: 1,067,175. Regulating I.C. engines. T. PATERSON and J.A. HOWARD. Dec.18, 1963 [Dec.21, 1962] No.48362/62. Heading F1B. [Also in Division G3] In a governor-controlled fuel injection pump in which the governor sleeve 15 and pump delivery control rod 10 are interconnected by link 20 so as to move in opposite directions along parallel paths, the parts are arranged so that acceleration or deceleration in directions parallel to the paths does not cause undesired movement of the control rod 10. Rollers 12, 13 are mounted on the ends of spindles 31, 32 which move in slots 35, 36. Other rollers (not shown) are mounted on spindles 31, 32 between the spaced side walls of channel 11 and thrust against inclined surfaces in the base of channel 11 which are parallel to slots 35, 36. With increasing speed rollers 12, 13 move outwardly on plate 14 and the inner rollers cause member 11 to move to the right against adjustable spring 25. Pivoting of link 20 causes movement of control rod 10 to the left to adjust the delivery of the pump plungers to the corresponding cylinders. The inertias and arrangements of the governor parts, link 20 and control rod 10 are such that parallel acceleration or deceleration forces tend to cancel each other out. An abutment plate on control rod 10 co-operates either with a maximum fuel lever 26 or an excess fuel lever 27.
Patent GB-1538820-A (GB)
Title: Diaphragm shut-off valve
IPC: F16K7/07
Filed: 1977-11-21
Abstract: The diaphragm (12) of the shut-off valve can be moved by an opening mechanism (20-26). The outer side (28) of the diaphragm (12) can be subjected to a vacuum. The opening mechanism (20-26) is a piston (20) which can be subjected to the vacuum in the vacuum line (10). The arrangement is such that it is first of all the outer side (28) of the diaphragm (12) and only then the piston (20) which is subjected to the vacuum. The subjection of the outer side (28) of the diaphragm (12) to the vacuum is brought about by relieving the diaphragm (12), allowing it to be moved rapidly even by a weak opening mechanism (20-26). It is advantageous to relieve the diaphragm (12) before the opening mechanism (20-26) is actuated. <IMAGE>
Patent GB-1327784-A (GB)
Title: Terminals for electrically conductive surfaces
IPC: H01R12/55
Filed: 1970-10-12
Abstract: 1327784 Terminals WALTER PREH GmbH 12 Oct 1970 48447/70 Heading H2E A soldering terminal, mechanically attachable to a plate 1 supporting a layer resistor, comprises a soldering lug 3 integral with a resilient contact member 6 adapted to bear against a silvered surface 2 of the resistor. The contact member comprises an arm 6 with a protuberance 8 which bears against the surface 2, the terminal being attached to a tenon 7 extending from the resistor by securing clips 5, 5<SP>1</SP>. The lug 3 can be immersion soldered to a printed circuit. In another embodiment (Fig. 2, not shown) the clips 5, 5<SP>1</SP> are omitted and the terminal is attached by a twist lug (9) which is passed through an aperture (10) in the resistor and then twisted.
Patent GB-1235931-A (GB)
Title: Improvements in or relating to arc-suppressive switching devices
IPC: H01H9/02
Filed: 1968-10-14
Abstract: 1,235,931. Arcing suppressing. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 14 Oct., 1968 [24 Oct., 1967 (2); 28 Dec., 1967 (2)], No. 48519/68. Heading H1N A switch, e.g. a thermal switch is provided with a semi-conductor element 5 disposed between contact-carrying plates 1, 2, the fixed contact plate 1 having a U-shaped end containing the semi-conductor element 5 which is also U-shaped and fits on the end of the moving contact-carrying plate 2. The plate 2 may be a bi-metallic strip and the element 5 which serves to suppress arcing between contacts 3, 4 has a non-linear resistance characteristic. The element 5 may be a thermistor or a selenium, germanium, silicon or cuprous oxide rectifier.
Patent GB-956841-A (GB)
Title: Locating means for the piston rings of i.c. engines
IPC: F16J9/24
Filed: 1962-12-24
Abstract: 956,841. Piston rings; cotters; bolt-hole bushes; securing bolt-like pins. KARL SCHMIDT G.m.b.H. Dec. 24, 1962 [Dec. 27, 1961], No. 48580/62. Headings F2H and F2T. Rotation of a piston ring d in its groove is prevented by a sleeve a which is expanded in a hole b in the piston c so that it is frictionally held therein by a pin h pressed into the sleeve, to latter projecting from the hole and engaging a recess in the ring. Axially extending notches i in the pin close when it is inserted in the sleeve and cause it to be frictionally held therein. The sleeve is axially split at f and has circumferential ribs e which bite into the piston material.
Patent GB-1120566-A (GB)
Title: Variable threshold logic gate
IPC: H03K19/084
Filed: 1966-10-31
Abstract: 1,120,566. Logic circuits. MOTOROLA Inc. 31 Oct., 1966 [30 Nov., 1965], No. 48743/66. Heading H3T. A variable-threshold logic circuit comprises a plurality of inputs to a transistor which is coupled to an output inverter transistor via a series resistor so that adjustment of the supply current alters the voltage dropped across the resistor and hence controls the amplitude of the input signals necessary to make the output transistor conduct. In Fig. 1 a transistor 10 normally passes a small current but is driven into heavy conduction when signals are present at all the inputs 8. Current is supplied from a constant-current transistor 12 of magnitude adjustable by resistors 16, 17, and variation of these alters the voltage dropped across resistor 11 when transistor 10 conducts heavily. Increase in current due to conduction of transistor 10 causes a corresponding decrease in current through diode 5 until at a certain point this is cut off and the base potential of the output transistor 13 starts to rise. Eventually transistor 13 conducts and produces an output at 19, the combination of diodes 8, transistor 10 and transistor 13 acting as a NAND gate. The diode 5 is formed on the same integrated substrate as transistors 12 and 13 and serves to protect the base-emitter junction of transistor 13 from excess reverse bias and also to prevent transistor 12 from going into saturation. Temperature compensation is achieved by (a) matching the diodes 8 to the base-emitter junction of transistor 10, (b) matching the base-emitter junctions of transistors 12 and 13, (c) making resistors 11 and 14 equal, and (d) fabricating the whole circuit on one monolithic chip. The variable threshold makes the circuit insensitive to noise. The threshold can be adjusted by altering the supply voltage instead of resistors 16, 17. Two circuits as in Fig. 1 can be cross-coupled to form a bi-stable circuit (Fig. 3, not shown), using the inputs of the two sides as A.C. set and reset terminals respectively. Further diode-transistor AND gates are included in the feedback paths to provide D.C. set and reset inputs. The circuit of Fig. 1 can also be modified to act as a line driver for capacitive loads (Fig. 4, not shown) by the addition of two transistors and a diode in series (42, 48, 41) fed from transistor 13 which now acts as a phasesplitter. These additional components are temperature-compensated by the inclusion of the base-emitter path of a further transistor (43) between the base of transistor 12 and the potential divider 16, 17.
Patent GB-1116095-A (GB)
Title: Improvements in or relating to explosively-actuated repeating-action power tools fordriving fasteners
IPC: B25C1/18
Filed: 1965-11-17
Abstract: 1,116,095. Cartridge-actuated tools. ETEM, ETABLISSEMENT DE TECHNIQUES MODERNES. 17 Nov., 1965 [20 Nov., 1964], No. 48752/65. Heading B4C. A cartridge-actuated tool for driving fasteners such as nails, pins or studs, comprises a control means 25, 26, 28 for producing a step-by-step displacement of a magazine loader 20 and including a slidable firing unit 1, 2 actuated by the operator. The magazine is in the form of a block 20 held in a breech-block 18 by means of a pivoted latch 23, Fig. 5 (not shown), the breech block being provided with teeth 19 adapted to co-operate with a spring-loaded pawl 26 slidable in a member 25 which is pivoted in the tool housing. The member 25 is provided with a lever 28 which engages with a slot 6a in a sleeve 6 mounted in a hand-grip 1 surrounding a spring-loaded firing pin 2. In operation, upon applying the front end of the barrel against a workpiece and pressing on the hand-grip, the lever 28 is moved so as to cause the pawl to index the magazine along and bring a loaded chamber 31 into line with the firing pin. In a modification, the barrel 16 is loaded by springs 39, Fig. 10 (not shown) against the magazine in order that various sized magazines may be used.
Patent GB-1088199-A (GB)
Title: Improvements in or relating to tuner units
IPC: H03J5/12
Filed: 1965-11-17
Abstract: 1,088,199. Push-button tuning mechanisms. R. HOPT. Nov. 17, 1965 [Nov. 21, 1964], No. 48830/65. Heading H3Q. A push-button device for actuating tuner units of radio apparatus, particularly television receivers, comprises one or more push buttons 2 each of which operate simultaneously more than one tuning unit (e.g. UHF and VHF), and a switch for operatively connecting one of these tuner units into the circuits of the apparatus, the or each push button 2 having a cylindrical part (14, Figs. 2, 3, not shown) and a cap 13 rotatable but non-displaceable thereon and having a projection (pin 11) extending therefrom and so positioned that, on depressing the push button, the projection 11 either displaces or moves idly past a switching member (flap 4 pivoted about 6) to operate (by movement of arm 7) the said switch, depending on the angular position of the cap relative to the cylindrical portion. The cap is urged into either of two end positions in which a radial projection 19 on the cylindrical part abuts one of a plurality of longitudinal fingers (16) of the cap, by a spring 21 acting between pins 22, 23 on the cylindrical part and the cap, respectively. The fingers (16) terminate in claws (15) which engage behind a shoulder of the cylindrical part (14) to hold the cap 13 thereon. The cap may be of resilient synthetic resin material.
Patent GB-1434570-A (GB)
Title: Outrigger support mechanism
IPC: B66C23/78
Filed: 1973-10-22
Abstract: 1434570 Outrigger support mechanism KOEHRING CO 22 Oct 1973 [1 Nov 1972] 49097/73 Heading B7J An outrigger support mechanism comprises a frame 32, a hollow beam 34 telescopically received within the frame and a support arm 24 pivotally connected at 36 to the beam. An hydraulic piston-and-cylinder arrangement 38 secured to the frame and beam at 40 and 44, respectively, projects and retracts the beam. A second, independently operable, hydraulic piston-and-cylinder arrangement 42 secured to the beam and the support arm at 44 and 46, respectively, pivots the support arm between its stowed and operative positions. A ground engaging pad 26 is pivotally mounted on the support arm. The frame contains two beams in side-by-side relationship with the arms at opposite ends of the frame.
Patent GB-1073695-A (GB)
Title: Automatic record player
IPC: G11B17/28
Filed: 1963-12-13
Abstract: 1,073,695. Juke boxes. J. FOUFOUNIS. Dec. 13, 1963 [Dec. 13, 1962], No. 49282/63. Heading G5R. A juke box comprises a fixed linear or toroidal record magazine and a record player which moves until stopped opposite a selected record. In Fig. 1 the playing apparatus is mounted on a carriage 3 movable perpendicular to the plane of the drawing alongside a fixed record magazine. The magazine is provided with a pair of rods 11 and 12 for each record, the rods being displaceable longitudinally to select one or both sides of a record. The carriage 3 is driven from motor 14 via pinion 18 and rack 17 until a rod 11 or 12 engages a lever 36 or 37 and thereby releases a spring-loaded bar 28. When the bar 28 moves, one end 28b engages an aperture 6a in the magazine to lock the carriage in position, and the other end removes a finger 28a from a notch in a cam 26 to allow the cam to rotate. Rotation of the cam moves a slider 33 which restores the rod 11 or 12 to its original position and rotates a lever 15 which moves the selected record from the magazine to the turntable (not shown). The cam also moves a slider 34 which causes one or other of twin pick-ups 16a to engage the selected side of the record, the direction of the necessary rotation of the pick-up support being determined by whether lever 36 or lever 37 started the operation; if it was lever 37 a reversing switch or mechanism (not shown) reverses the direction of rotation of motor 14 or turntable. When the cam 26 has rotated 180 degrees a cam follower enters the notch in the cam vacated by finger 28a and disengages a clutch (not shown) thereby removing the drive from cam 26 and pinion 18. At the end of a record an end of the pick-up arm 16 engages a lever 54 which re-engages the clutch to allow cam 26 to start turning again. When slider 34 is thereby withdrawn a rod 48 rides up a ramp 48a on the slider and thereby restores the arm 16 to its initial position. A manually operable rod 57 can cause movement of lever 54 to stop the playing of a record. Manual operation of a cam if acting on levers 36 and 37 allows the playing of a record to be repeated.
Patent GB-1081325-A (GB)
Title: Production of mucochloric acid
IPC: C07C51/235
Filed: 1964-12-04
Abstract: Mucochloric acid is prepared by reacting with chlorine in an aqueous medium a compound (other than mucochloric acid or 2,2,3,3-tetrachloro - butanediol - 1,4) free from carbon-carbon triple bonds and comprising a group containing not more and not less than four carbon atoms in a straight chain, of which the two outer carbon atoms of the said four carbon atoms either each bear at least one substituent, which is not bonded to the straight chain by a carbon-carbon bond, or are combined with each other via at least one oxygen atom, sulphur atom or nitrogen atom in a C1- 4 alkyl imino group to form a heterocyclic ring, at least one of said outer carbon atoms bearing at least one hydrogen atom.
Patent GB-1153930-A (GB)
Title: Process For The Separation Of Mixtures Of Organic Compounds By Adduct Formation
Inventor: MAAS RUDOLF JAKOB
IPC: C07C9/14
Filed: 1967-10-31
Abstract: 1,153,930. Separating hydrocarbons. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 31 Oct., 1967 [2 Nov., 1966], No. 49428/67. Heading C5E. A process for the separation of a mixture of organic compounds part of which can form solid adducts with urea- or thiourea comprises contacting the mixture with solid ammoniate of the adducting agent under ammonia pressure, the ammoniate being decomposed during the contact to form solid adducting agent which forms solid adducts with the adductable compounds, separating the adducts from the non-adducted part of the mixture, and decomposing the separated adducts. Excess of adducting agent may be used. Formation of ammoniate, decomposition of ammoniate, formation of adduct and decompositon of adduct may be effected at the same temperature by variation of ammonia pressure. The process can separate n-paraffin (e.g. waxes) from petroleum fractions.
Patent GB-1284927-A (GB)
Title: Improved dental or surgical operating light
IPC: F21V8/00
Filed: 1969-10-08
Abstract: 1284927 Dental mirrors MC KESSON CO 8 Oct 1969 [18 Oct 1968] 49489/69 Heading A5R [Also in Division F4] A dental instrument such as a mirror 34 is attached to the free end 32 of an elongated flexible fibre-optic bundle 36 which can be used by the dentist to direct a spot of light into the patient's mouth. The other end 56 of the bundle is disposed at the focus of a converging lens 48 which directs light from the quartz-iodine source 50 of the main dental lamp 3 (see Division F4) into the bundle through a right-angled reflecting prism 46. The lens 48 is fitted into the back of the main reflector 24 of the lamp. A clip (29) is provided on the lamp frame 26 to support the free end of the bundle when it is not in use.
Patent GB-1062290-A (GB)
Title: A power-operated strapping tool
Inventor: SANSUM ROBERT DAVID
IPC: B65B13/18
Filed: 1965-02-12
Abstract: 1,062,290. Sealing. GERRARD INDUSTRIES Ltd. Feb. 8, 1966 [Feb. 12, 1965], No. 49584/64. Heading B6P. [Also in Division F2] In a power-operated strapping tool, jaws 57 for crimping a sleeve-type seal about the metal strapping are connected by toggle links 56 to the rod 54 of a piston 42 in an air cylinder 41. Admission of air through a valve 43 operated by a thumb lever causes the piston to move downwards to close the jaws.
Patent GB-1523870-A (GB)
Title: Presses
IPC: C14B5/00
Filed: 1975-10-31
Abstract: 1523870 Platen presses; registration BRITISH UNITED SHOE MACHINERY CO Ltd 31 Oct 1975 [16 Nov 1974] 49669/74 Headings B6C and B6J [Also in Division B4] A press for use in, e.g. punching holes in shoe uppers comprises an upper presser member 39 carrying a tool means, e.g. a punching assembly 40 and movably mounted relative to a lower presser member 6 associated with a workpiece supporting means 14 such that the supporting means and punching assembly can be brought into registration, the punching assembly and the supporting means each having an abutment 42 and 20 respectively so that when they are moved to bring them into alignment, the abutments come into engagement thereby to maintain the tool assembly and a workpiece on the supporting means in correct registration, and means, e.g. a ram, 36 for effecting a relative movement of approach of the presser members. The punching assembly comprises a number of punches arranged to project through holes in a spring- loaded stripper plate when the stripper plate is pressed upwardly by contact of plunger 44 with bosses 46 on the supporting member or carrier 14; the lower surface of the stripper plate is formed with ridges corresponding to stitch marking on the workpiece and are arranged to be pressed into an ink pad 30 on the lower presser member 6. The workpiece supporting member 14 is guided in slideways 12 and loaded by a spring 18. A locat ng plate having an aperture corresponding to the shape of the workpiece, e.g. a shoe upper, is clamped on the member 14 by clamps 28. In operation, the ram is moved along the upper presser member 34 by a motor and then lowered to bring the ridges on the stripper plate into contact with the ink pad. The ram is then raised and moved until the abutments are engaged, any overtravel of the transverse movement of the ram being accommodated by the sliding movement of the carrier 14 and the spring 18. The ram is then lowered to effect a punching stroke. In modifications, a second carrier 14 can replace the ink pad 30 such that the press can effect pressing strokes at both stations A, B; if required, an inking roller can be positioned between the two stations A, B. The punching assembly may be replaced by any other tool, e.g. a cutting-out knife or an embossing punch. The cutting surface on the carrier 14 may be made of a self-sealing material.
Patent GB-1408443-A (GB)
Title: Hanging display curtains
IPC: G09F23/00
Filed: 1972-10-30
Abstract: 1408443 Curtains W R HOBBS 30 Jan 1974 [30 Oct 1972] 49926/72 Heading A4S [Also in Division G4-G6] A curtain for use in advertising or display consists of a sheet of metallised plastics such as polyvinyl chloride, with a number of vertical parallel slits such that the strips so defined may be moved by air currents to provide a shimmering effect, the surface of the curtain bearing printed display matter.
Patent GB-1519607-A (GB)
Title: Digital control of a loudspeaking telephone system
IPC: H04B1/40
Filed: 1975-12-05
Abstract: 1519607 Transmission systems NORTHERN TELECOM Ltd 5 Dec 1975 [12 Dec 1974] 50016/75 Heading H4R A loudspeaking telephone system has a transmit and a receive channel, means for generating a control voltage dependent on comparative signal levels in the channels and two identical, digitally controlled attenuators, one in each channel, one attenuator responding to the digital representation of the control voltage and the other to its complement so that the total attenuation and hence the total gain in the loop is constant. In the embodiment, Fig. 1, A/D converter 30 converts the analogue control voltage VC obtained from the generator G by comparison of the signal levels of the microphone, transmit and receive signals S M , S T  and S R  respectively, into a binary signal which directly controls the attenuator 10 in the transmit channel and through a complement generator 50 the attenuator 20 in the receive channel. The A/D converter 30 is a tracking type converter i.e. it monitors its output and it adjusts the output in accordance with the input. In the embodiment, Fig. 3, the control voltage VC added with the complement of the output, converted by D/A converter 38 is monitored by comparators 32, 33 which through a logic circuit 40 control an up/down binary counter 37 whose output is the digital representation of the input Vc. Comparator 32 steps up the counter 37 when the converted output is less than the input Vc and comparator 33 steps down the counter when the converted output is more than Vc. The output of counter 37 controls, directly, the attenuator 10 (R11-R20) through FETs Tl to T5. The complement generator 50 (inverters 51-55) controls the attenuator 20, which is identical to attenuator 10, through FETs not shown. The timing of the A/D converter is controlled by a clock signal generated by a clock generator (Fig. 4, not shown). An end limit decoder 36 prevents the counter 37 from exceeding its limits (all '0's or all '1's) to prevent a "jump" in the attenuation of attenuators 10 and 20.