baber/WOPTO huggingface dataset:
Patent GB-971360-A (GB)
Title: Combined lamp-socket and lens for a lighting fixture for sewing machines
IPC: D05B79/00
Filed: 1963-09-11
Abstract: 971,360. Lamp holders. SINGER CO. Sept.11, 1963 [Sept. 18, 1962], No. 35845/63. Heading H2E. [Also in Divisions D1 and F4] A light device, especially for use within the frame of a sewing machine, comprises two longitudinally disposed interfitting elements of moulded light transmitting material forming a lamp receiving socket, one of the elements having an integral extension forming a lens for the lamp, and a single mounting bracket embracing the elements and forming the sole means of securing the parts in assembled condition. In the form shown, the device consists of two socket portions 17, 19, Fig. 3, the portion 17 having an extension 18 formed with a Fresnel lens 41. The lower portion 17 has on inner wall 25 formed with slots 29 to receive ears 30 on a wafer of insulating material supporting rivets 32 to which the electric leads 22 23 are attached, the wafer being pressed towards the forward end of the slots 29 by a spring 24. The inner walls of both portions are formed with bayonet slots 26, 39. The portions are held together by a clamping member 20 which also carries a lug 45 by which the device is secured in a cavity in a sewing machine. The wall 12, Fig. 2, of the cavity has a ledge 44 which is engaged by a lip 43 on the part 18 when the device is in operative position, the lug 45 being bent so as to press the lip into engagement with the ledge. For changing the lamp, the device is pivoted downwards by means of a thumbpiece 42.
Patent GB-804152-A (GB)
Title: Wire-tie rod construction
IPC: E04G17/07
Filed: 1956-11-23
Abstract: 804,152. Tie rods for shuttering. WILLIAMS, C. I. Nov. 23, 1956 [April 19, 1956], No. 35870/56. Class 20(2) A wire tie rod comprises an inner rod 15 formed with a double lead thread and outer tie rods 20 each having an integrally forged conical member 19 into which the inner rod is screwed. The inner rod may have a crimp 16 and ears 17. At the foot of the conical member 19 is a semi-spherically or conically shaped head having an annular rear face which abuts against sheathing 12. The outer ends of the outer rods 20 may have heads 24, Figs. 3 and 4 (not shown), compressing a flattened portion formed by cold forging in an upsetting machine, bounded by flanged surfaces against which are guided surfaces 28 of the wedge show in Fig. 5. The slot 36 is inclined so as to increase the wedging action to an extent measurable by markings formed in intaglio or embossed with suitable dies on the wedge which may be cast in malleable iron, steel or semi-steel, made from pressed steel or of brass or aluminium. The outer tie rod may, alternatively to the head 24, have a threaded end secured by a steel jack tie, Fig. 7 (not shown). Specification 790,481 is referred to.
Patent GB-871330-A (GB)
Title: Improvements in and relating to bistable superconductive storage elements
IPC: H01L39/00
Filed: 1957-11-19
Abstract: 871,330. Super-conductive circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 19, 1957 [Nov. 19, 1956], No. 35995/57. Class 40 (9). A bi-stable element comprises a non-magnetic support 10 carrying a thin sheet of superconductive material 12 formed with holes 14, 16, 18 in which two or three super-conductive magnetizing coils 22, 24, 26 are mounted. The coils are connected to a common pulse source 20. If magnetic flux is linked with a hole by means of a super-conductive magnetizing coil, the flux is maintained or trapped by the circulating currents set up around the hole. In a field of strength equal to or greater than a critical value, the magnetizing coil ceases to be superconductive and recovers its normal resistance. The linked flux is sufficient to drive the magnetizing coil resistive. If the magnetic flux is initially linked with holes 14, 16 a pulse from current source 20 transfers the flux from holes 14, 16 to 16, 18. A further pulse restores the flux to 14, 16. The two states of this bi-stable element are sensed by means of zig-zag sensing wires 38, 34 mounted in the holes 14, 18. The sensing wires are connected in parallel to a current source 32. The sensing wire in a magnetic field is resistive and the other is superconductive corresponding indications being given by the loads 40, 36. If the three holes are arranged in a triangular fashion, Fig. 5, flux may be linked with holes 14a, 16a and with 18a, 16a to represent two stable states. The magnetizing coil 24, Fig. 4, or 24a, Fig. 5, may be omitted.
Patent GB-770284-A (GB)
Title: Improvements in actuator devices for power transmitting chains, conveyor chains or the like
IPC: F16H7/06
Filed: 1953-12-29
Abstract: 770,284. Driving gear for conveyer chains. GREBE, K. Dec. 29, 1953 [Dec. 29, 1952], No. 36094/53. Class 78 (1). [Also in Group XXIV] In an intermediate sprocket drive on to the straight run of a conveyer chain the actuator elements on the sprockets and the abutments on the chain are so arranged that the engagement between them occurs mainly over the peripheral section of the sprocket beyond the tangent point. This is effected in Fig. 2 by inclining the abutment faces 31, 32, 33 of the chain and providing actuator elements 1, 2, 3 of the sprocket of circular form. In Fig. 3, the teeth of the chain 21, 22, 23, 24 are square, but two sprockets having actuator elements 1 2, 3 and 10, 11, 12 respectively, and axes offset along the direction of the chain, are provided. Each sprocket relieves the other sprocket of the drive before the tangent point. The sprockets are coupled to rotate together, by, for example, connecting links 8, Fig. 6. The abutment faces of the teeth of the chain may also be oblique as in Fig. 2.
Patent GB-332502-A (GB)
IPC: A62B7/14
Filed: 1929-11-25
Abstract: 332,502. Drager, O. H., (Assignee of Drager, E.). Dec. 15, 1928, [Convention date]. Respirators. -In respirators wherein the inhaled air is enriched by oxygen supplied automatically to an injector by the movements of a breathing bag the operation of the oxygen-supply device is ensured by the provision of a non-return valve, on the suction side of, and opening towards the injector, and so loaded as to open only under the suction action produced by the injector. In the open-circuit apparatus shown in Fig. 1, for use at high altitudes, in which the collapse of the breathing bag 5 during inhalation opens the valve 10, through the agency of the lever 6, and allows oxygen supplied at 4 to pass to an injector 1, 2, 3 atmospheric air is only admitted through a variable sector valve 13, when a spring loaded valve 18 provided in the air-inlet 11 is opened by the action of the injector. In the closed-circuit apparatus shown in Fig. 2, a spring loaded valve 49 is provided between the breathing-bag 32 and the injector 38, 39 which is supplied with oxygen from a cylinder 35 through a passage 37 and a valve 34 opened by the expansion of the breathing bag during exhalation, the gases passing thence through an absorbent canister 41 and an inhalation-bag 44 to the mouthpiece 30. In each case the valve is so loaded that the pressure change produced by breathing only is insufficient to open it.
Patent GB-1060016-A (GB)
Title: Epoxy resins
Inventor: KUBENS ROLF
IPC: H01B3/30
Filed: 1965-08-23
Abstract: Glycidyl esters of cycloaliphatic polycarboxylic acids, the cycloaliphatic rings of which are free of epoxy groups, prepared by reacting the cycloaliphatic polycarboxylic acid with an epihalohydrin in the presence of a soluble sulphonium salt and/or a thioether and dehydrohalogenating with caustic alkali in at least one step, the first step being carried out in the presence of excess epihalohydrin and of the sulphonium salt and/or thioether, are cured with a cycloaliphatic polycarboxylic anhydride or a cycloaliphatic polyamine.  The curable compositions may also contain fillers, pigments and accelerators. They are useful as coating compositions and as casting resins in the manufacture of electrical insulators.
Patent GB-664491-A (GB)
Title: Improvements relating to fluid pressure relieving apparatus
IPC: F16K47/10
Filed: 1946-12-06
Abstract: 664,491. Fluid-actuated. valves. CLOUDSLEY, J. L. Jan. 5, 1948 [Dec. 6, 1946], No. 36222/46, Class 135 [Also in Group XXXII] In fluid pressure relieving apparatus of the kind in which fluid is enabled to pass relatively freely from one chamber to another through a port or passage but is restricted in passing in the opposite direction, the restricted flow takes place between the inner periphery of a dished resilient annular disc of the Belleville washer type, or a member moving therewith, and a co-operating circular valve seating surface. The invention is especially applicable to shock absorbers and Fig. 1 shows the piston 11 of a hydraulic shock absorber containing a recuperating valve formed as an aperture disc 8 urged against a seat 10 by Belleville washers 9, the upper of which forms a valve closure at 9a against an apertured plate 8a. The aperture in the disc 8 is of such size as to limit the downward displacement of the upper washer from the plate 8a. Fig. 2 shows a further assembly for a hydraulic shock absorber comprising a piston 11 with an apertured end plate 12 and an apertured plug 15. The plug 15 guides a slidable flanged part 18 which in turn guides a recuperating valve 24 and a pair of Belleville washers 22, 22t. The valve face 20 of the part 18 seats against a valve seat member 21 guided in peripherally slotted ring 28 resting on a screwed ring 26 with notches 27. The seat member 21 guides a further pair of Belleville washers 32, 32<SP>1</SP> held in place by a cap screw 36. A plate spring 47 loads the whole assembly of the seat member 21 against the valve part 18. The space between the washers 22, 22<SP>1</SP> has access to the interior of the part 18 through an aperture 39, whilst the space between the washers 32, 321 acts as a dashpot and is connected with the interior of the part 18 through the spring-loaded check valve 42. Liquid also escapes from the latter space through a helical groove 45 and a groove 46 formed in the bottom of the ring 28 or alternatively through the groove 45 and a port 46<SP>1</SP>. In this form, the movement of the valve face 20 away from the seat 21 is hydraulically limited by an interchangeable end plate 481 threaded on a boss 48 or where the end plate is integral with the boss by a separate loose ring 48x. Specification 526,945 is referred to.
Patent GB-522686-A (GB)
Title: A new or improved material suitable for covering wall or other surfaces and for other purposes
IPC: D06N7/00
Filed: 1938-12-13
Abstract: 522,686. Wall coverings &c. MORTON, Sir J. Dec. 13, 1938, No. 36261. Drawings to Specification. [Class 140] An opaque material suitable for wall coverings &c. comprises a fabric of open mesh which is impregnated with a clear or transparent filmforming substance so as to fill the interstices and constitute a coating on the face of the fabric and an opaque layer of colouring matter applied to the reverse side so as to form a complete backing the colour of which shows through the film substance. The open mesh fabric may be woven, knitted, laced &c. and from cotton, jute, hemp, silk, artificial silk &c. may be patterned white, dyed or printed. The film-forming substance may be a cellulosic or cellulose, derivative material applied in aqueous solution and coagulated, or cellulose derivative or synthetic resinous materials applied as solutions in organic solvents or as aqueous dispersions. After applying the film- 'forming material, the fabric is dried and is then coated with a solution or dispersion of cellulose derivative or synthetic resin containing colouring matter and fillers. Examples are given.
Patent GB-1030082-A (GB)
Title: Apparatus for finishing gear wheels
IPC: B23F19/10
Filed: 1964-09-07
Abstract: 1,030,082. Gear-finishing. G. KEHR. Sept. 7, 1964 [Sept. 7, 1963], No. 36505/64. Headings B3B, B3D, B3K and B3T. Apparatus for finishing gear-wheels comprises a plurality of tools, for operating on the gears as they are carried round on a turntable 13, the tools including, in order, cutters 21a for removing burrs at the leading edges of the teeth, a milling cutter 21b for milling the leading edges of the teeth and brushes 21c for fine deburring and cleaning. The turntable is indexed by a motor 14 and rollers 16a, 16b or any other means. The tools are carried on adjustable supports 20 on a ring 19. Except at the milling-station B and the loading station E, the gears are rotated by a chain 24 driven by a motor 27. The milling cutters are carried by an adjustable slide 29 on a support 20. The slide 29 carries an upper slide 32 fed to a working position by a pneumatic device 33 in association with a dash-pot. The slide 32 carries a cutter-slide 36 which is reciprocated by a pneumatic device 37 as limited by stops 40, 40a and a dashpot 41. The milling-cutters 21b machine the upper and lower faces of the gear between displaced tooth spaces for a time determined by a delay device. The gear is indexed by a spring-pressed plunger 57 and a pawl 62 which is actuated by a lever 65 when the slide is withdrawn. Reciprocations of the slide 36 continue until terminated by a pre-set electrical counting-device. A time delay then allows for withdrawal of the slide 32. If a tooth is not properly positioned, the plunger 57 is pushed back and stops the machine. The milling cutters 21b are adjustable transversely, axially and vertically and are rotated by compressed air motors at 60,000 r.p.m.
Patent GB-514146-A (GB)
Title: Improvements in contact eyeglasses
IPC: G02C7/04
Filed: 1938-12-16
Abstract: 514,146. Contact spectacle lenses. ZEISS, C., [Firm of]. Dec. 16, 1938, No. 36634. Convention date, Dec. 20, 1937. Drawings to Specification. [Class 97 (i)] The lens has a bowl-shaped corneal portion and an annular scleral portion whose interior sections in perpendicular meridional planes constitute arcs of circles of different radii. The two arcs forming the sections of the two sides of the scleral portions in one of the planes may be concentric or have different centres on either side of the lens axis.
Patent GB-1397774-A (GB)
Title: Sliding windows
IPC: E06B3/46
Filed: 1972-08-07
Abstract: 1397774 Sliding windows CRITTALL-HOPE Ltd 7 Aug 1973 [7 Aug 1972] 36722/72 Heading E1J A window comprises sliding wings each with upwardly and downwardly projecting locating means 22, a channel section main frame containing guide blocks 32, 34, 36 behind which the means 22 are engaged when the window is closed. The window is opened by release of lock (38), movement of wing C towards jamb 8, forward movement of the edge remote from jamb 8 and then sliding by the wing in front of wing B. Wing B is then movable toward jamb 8. Wings C and A have guides (42) engaging wing B when .the window is closed, and handles (46). Flange 27 is detachable for removal of the wings.
Patent GB-1364064-A (GB)
Title: Demodulating circuits for differential phase-modulated data signals
IPC: H04L27/227
Filed: 1971-08-05
Abstract: 1364064 Digital transmission; phase modulation SIEMENS AG 5 Aug 1971 [24 Sept 1970] 36755/71 Heading H4P In a differential phase-modulated data transmission system where the receiver develops from the carrier a sampling pulse for each modulation period which samples the phase of a reference frequency and adjacent samples, which are in binary form, are compared to recover the original data, the phase of the reference frequency is adjusted to the mean phase of the carrier appearing over a plurality of preceding modulation periods. A received carrier passes through a variable gain amplifier RV for squaring in a limiter BV. A reference oscillator RO provides a frequency n times the carrier frequency to drive a divider counter FT1 which provides in binary coded form the n possible phase values to a gate G. Generator TG primes gate G for a sampling period within each modulation period and upon the zero transit of the squared carrier the reference phase then appearing is gated into a store SP. Decoder D.C. compares adjacent phases in store SP to obtain the original data. In the reference frequency generator RO a synchronizing circuit adjusts the frequency divider FT2 to maintain the phase of the reference frequency equal to the mean phase of the carrier appearing over a plurality of preceding modulation periods.
Patent GB-1126309-A (GB)
Title: Process for diffusing gold into a semiconductor material
IPC: H01L21/00
Filed: 1967-08-10
Abstract: 1,126,309. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 10 Aug., 1967 [19 Sept., 1966], No. 36794/67. Heading H1K. A diffusion source for providing gold recombination centres to reduce the minority carrier lifetime in the body of a semi-conductor device comprises a gold halide or cyanide. The gold halide or cyanide (e.g. AuCl or AuCl 3 ) is heated in the presence of the semi-conductor body to form elemental gold by thermal decomposition, the elemental gold then diffusing by gaseous diffusion into those parts of the semiconductor body exposed thereto. It is stated that it is known to diffuse gold into a semi-conductor device from a coating plated on to the substrate or non-active side of the device; in the present process however the gold may be diffused directly from the gaseous phase into the active side of the device through a suitable mask (e.g. of SiO 2 ), thus permitting a more precise control of the localization of the gold recombination centres within the device. In practising the invention, silicon wafers having oxide masks thereon are placed together with a quantity of gold halide or cyanide in a quartz ampoule which is then evacuated and sealed, the sealed ampoule then being heated for a period of from 5 to 120 minutes at a temperature of at least 700‹ C., preferably at least 850‹ C. The thermal decomposition of the heated gold compound creates a gold vapour pressure at the exposed surfaces of the semi-conductor devices considerably in excess of that which can be achieved by heating elemental gold to similar temperatures. In one embodiment, Fig. 1 (not shown), gold is diffused through an annular window in a silica mask into the base region of a silicon planar transistor. In a second embodiment, Fig. 2 (not shown), the whole surface of a PNPN silicon thyristor, except for the one face constituting the P-type anode emitter, is coated with a silica layer. Gold is diffused through the anode emitter and part of the way through the adjacent N-type base region, none being diffused into the gate or cathode emitter.
Patent GB-1506178-A (GB)
Title: Hammer arrangement
IPC: B02C13/28
Filed: 1974-08-23
Abstract: 1506178 Impact pulverizers HENRY BALFOUR & CO Ltd 23 May 1975 [23 Aug 1974] 37038/74 Heading B2A An impact pulverizer 1 of the kind having beaters 9 secured to a rotor shaft 5 to cooperate with respective anvil members (not shown) has the beaters so arranged that axially adjacent beaters do not come into cooperative relation with their respective anvil members successively. Moreover the beaters are stated to be arranged in a sequence such that the sum of the squares of the distances between successively operating beaters is a maximum, the distance between a pair of successive beaters being taken as the unit. The arrangement in practice may be a double start spiral, the successively operating beaters alternating between the two spirals. The beaters may include known means for blanking off and thus shortening their operative length.
Patent GB-780173-A (GB)
Title: Improvements in writing pads or tablets
Inventor: PEARCE HOWARD REGINALD
IPC: B43L1/12
Filed: 1954-12-29
Abstract: 780,173. Writing tablets. LESWICK, Ltd. Dec. 23. 1955 [Dec. 29, 1954], No. 37531/54. Class 146(2) In a writing tablet of the kind in which a semi-transparent sheet 3 of paper is arranged above a plate covered with a dark adhesive layer 2 and protected by a sheet of transparent celluloid 4 all bound together at their two ends into a unitary structure, the frame 7 which slidably accommodates these parts has a strip 8 interposed between the adhesive layer 2 and the sheet 3. The frame 7 is of U-shape in formation and in cross-section to form a channel in which the sheets may slide. A flat frame 5 may be placed between the sheets 3 and 4 to limit the writing area.
Patent GB-1281705-A (GB)
Title: Improvements relating to apparatus for self-examination of the mouth
IPC: A61B1/24
Filed: 1969-07-25
Abstract: 1281705 Mouth mirrors FLOXITE CO Inc 25 July 1969 [26 July 1968] 37586/69 Addition to 1191928 Heading ASR In a modification of apparatus for selfexamination of the mouth disclosed in Parent Specification, wherein a concave mirror 1 is mounted relative to a light source so that the mouth illuminated by the light source may be viewed in the mirror without light from the source passing directly into the eyes, the mirror has a radius of curvature of about fourteen inches. The mirror may be provided with a frame 7 having a collar 5 fitting onto the front end of a torch. In other embodiments, Figs. 6 and 7 (not shown), the frame is removably mounted on the torch by magnetic means.
Patent GB-1457163-A (GB)
Title: Magnetic video tape recording and or reproducing apparatus
IPC: G11B15/665
Filed: 1974-08-29
Abstract: 1457163 Automatic tape loading SONY CORP 29 Aug 1974 [30 Aug 1973] 37898/74 Heading G5R A video magnetic tape recorder has a tape guiding means to wrap a tape loop around a rotary head drum (1), Fig. 1 (not shown), and to unwrap the loop from the drum, and timing means operative to deenergize an electrical drive means of such guiding means if a loading or unloading operation takes longer than the normal time. If the tape loading or unloading operation takes longer than the normal time this is taken as an indication of a malfunction liable to produce overload in a D.C. motor 24 driving the tape guiding means. The tape guiding means may be of the type disclosed in Specification 1,402,236, wherein elements mounted on a ring (21) rotated by motor 24 about video head drum (1) extract a loop (L) of tape from a twinreel cassette (4) and wrap it around drum 1. When a cassette-containing holder (3) is lowered to an operative position switch 57 is closed whereby, with switches 55, 62, 63, 68, 69 in the position shown in Fig. 2, transistor 61 conducts to energize motor 24 from terminal 60 to effect tape loading during which operation a capacitor 77 is charged. When ring (21) reaches its final position it operates switch 55 which opens contact 55a and closes to contact 55b thereby disabling a transistor 82, discharging capacitor 77 and turning off transistor 61 to stop motor 24. If, however, loading takes longer than the time for capacitor 77 to charge to a level to turn on transistor 82 the latter turns off transistor 61 and thereby motor 24. When an eject button is actuated switches 62, 63 move to their other positions to reverse motor 24 and switches 68, 69 also move to their other positions to render transistor 61 conductive, to energize motor 24 to unload the tape, and to render transistor 73 conductive whereby motor 24 goes slower so that the normal unloading time is longer than the normal loading time. When ring (21) reaches its initial position, the cassette holder (3) is raised by a spring so that switch 57 opens to stop motor 24. If unloading takes longer than the time for capacitor 79 to charge to a level to turn on transistor 82 the latter turns off transistor 61 and motor 24. The rotation of the video heads (1b) by a second motor, which is also operative to drive the cassette reels, e.g. to rewind the loop into the cassette during unloading, causes a pulse generator 58 to provide a signal at terminal 88 whereby a transistor 89 is normally conductive during unloading. If, however, such signal ceases, indicating that the loop is not being rewound into the cassette, transistor 89 turns off thereby turning on transistor 82 to turn off transistor 61 and motor 24. A warning light may be connected in the collector-emitter circuit of transistor 82.