baber/WOPTO huggingface dataset:
Patent GB-645690-A (GB)
Title: Improvements in and relating to antifriction ring elements
IPC: F16C17/18
Filed: 1946-09-20
Abstract: 645.690. Stuffing-boxes and substitutes for. TRIST, A. R. Sept. 20, 1946, No. 28211. [Class 122(v)] [Also in Group XXXIV] Seals, Fig. 11, consist of three rings A, B, C, pressed axially by springs W, W<SP>1</SP> and lubricated by an hydraulic differential X. Each ring has parallel faces and inner and outer members engaging the shaft and its housing respectively, the members having springs to counteract centrifugal force. The members may consist of spring blades d, e, Fig. 1, mounted between flanges b, c of the ring a, the free ends of the blades being formed as, or provided with, friction surfaces. In a modification, Fig. 3, the members g, h are cut from the body of the ring and are slightly thinner than the body, a disc being mounted on each side of the ring. In another form, Fig. 7, the friction surfaces consist of pads n<SP>4</SP>, o<SP>1</SP> on outer and inner cylinders n, o provided with tension and compression springs n<SP>1</SP>, p respectively. To centre the rings and steady their operation, rollers y are mounted either in pockets z in the ring or in the housing. The members k, l, Fig. 6, may be pivoted at k<SP>1</SP>, l<SP>1</SP> and engaged by tension and compression springs k<SP>2</SP>, l<SP>2</SP>. The members of Figs. 1 and 3 have their free ends either trailing or facing and the springs may be adjusted so that they respond to the same or different centrifugal forces, and in the latter case they may operate in sequence. The invention is applied to seals for the shafts of rotary or turbine pumps handling corrosive liquids. Large rings are made in two diametrically divided halves with interfitting joggles j<SP>1</SP> Fig. 9.
Patent GB-821502-A (GB)
Title: A new or improved raking machine
IPC: A01D78/00
Filed: 1955-11-29
Abstract: 821,502. Haymaking machines. HUEBNER, H. A., and WORREL, R. M. Nov. 29, 1955 [June 3, 1955], No. 28377/58. Divided out of 821,501. Class 6(3). A raking machine of the kind comprising rake wheels mounted for free rotation in echelon formation on a member which is disposed at an angle to the intended direction of advancement of the rake, is characterized by the fact that the frame of the machine is substantially X-shaped, having rake wheels 275 mounted on one diagonal member of the X and ground wheels 255 mounted at the extremities of the other such member. In the embodiment illustrated the frame comprises two parts 212 and 213, each comprising one portion adapted to support rake wheels and a second portion adapted to support a ground wheel, the forward portion 212 also comprising a tongue 217 having a draft connection 220 secured to its forward end. The two parts 212 and 213 are rigidly secured together at their elbow portions 229 and 241 so as to form an X-shaped frame as above. The manner in which the rake wheels are mounted on the machine is identical with that disclosed in Specification 821,501. Specification 802,201 also is referred to.
Patent GB-445282-A (GB)
Title: Improvements in and relating to inhaling apparatus
IPC: A61M16/10
Filed: 1934-10-04
Abstract: 445,282. Anaesthetic and like apparatus; valves. LLOYD, E. G., 12, Dartmouth Park Road, Kentish Town, and CATT, S. G., 19, Wood Lane, Highgate, both in London. Oct. 4, 1934, No. 28412. [Class 81 (ii)] [See also Group- XXIX] Apparatus for administering anaesthetic or other gases is characterized by a control device supplying gas from a source under pressure at a pressure slightly above atmospheric and in accordance with the patients' requirements, the device comprising a bellows 11 having a hinged top 20 and containing levers 22, 25, which, together with the bellows top, constitute a compound lever system tending to open the gas supply valve 18 against a spring 17. The bellows top bears on the lever 22 through an adjustable screw 21 which acts with slightly increasing mechanical advantage during collapse and with corresponding decreasing advantage during opening of the bellows. As shown nitrous oxide is supplied alternatively from cylinders 1 or 2 in a cabinet 4 the cylinders being connected by pipes 7, which may contain non- return valves preventing intercommunication, to a reducing valve 8 connected to the valve casing 16 by a pipe 9. The gas passes from the bellows 11 through a pipe 31 to a control valve 32 and thence by pipes 33, 34, to a mask catheter or nose-piece 30. The cylinders 1, 2, have primary control cocks 14 connected by rods 12 with handles 13 at the top of the cabinet. Oxygen from a pair of cylinders mounted behind 1, 2, passes through similar control valves to a valve casing 39 and bellows 37 similar to that described and mounted above or below the bellows 11. From the bellows 37 the oxygen passes by a pipe 42 to a control valve 43 and thence to the valve 32. The nitrous oxide may pass over a bottle containing volatile anaesthetic such as ether or etheyl chloride. Rods 50, 51 connected to the bellows top, carry indicators 49 showing the flow of the gases, and assist depression of the bellows by their weight or additional loading applied thereto. The collapse of the bellows owing to failure of the gas supply may be signalled by projections on the bellows arranged to contact with triggers or levers and to ring a bell. The cabinet 4 may have sliding or other front and back, and also if desired side, panels, and a top 44 divided into two outwardly hinging parts which when closed may cover the mask and connected parts housed within it, and when open may act as trays for instruments. Specification 445,283, is referred to.
Patent GB-1395539-A (GB)
Title: Photographic silver halide emulsion
IPC: G03C1/485
Filed: 1972-06-19
Abstract: 1395539 Silver halide emulsions EASTMAN KODAK CO 19 June 1972 [17 June 1971]  28604/72 Heading G2C A primitive silver halide emulsion in which the grains are substantially free of any chemically induced sensitivity, both on the surface and internally, contains a desensitizing concentration of a spectral sensitizing dye having a cathodic half-wave potential less positive than -1.0 and an anodic half wave potential more positive than +0.4. The dye is preferably a methine or polymethine dye and may be used together with a supersensitizer, e.g. a meso substituted benzthiazole- or naphthothiazolecyanine dye (see dyes C, G and I). The silver halide is predominantly bromide and the grains are monodisperse having a grain size of 0.8Á. The emulsion gives a direct positive image when imagewise exposed to light of relatively low intensity, followed by an overall exposure to light of relatively high intensity and developed with a surface or internal silver halide developer. Alternatively a direct positive image is obtained by imagewise exposure followed by development in the presence of a fogging agent; which is incorporated in either the photographic material or the developer solution.
Patent GB-1112810-A (GB)
Title: Improvements in or relating to countersunk screws or bolts
IPC: F16B35/06
Filed: 1966-06-27
Abstract: 1,112,810. Screws; nuts. BAUER & SCHAURTE. 27 June, 1966 [28 July, 1965]. No. 28800/66. Heading F2H. A countersunk screw for fixing ship plates, comprises a head having two sealing edges 5 and 6. The upper edge 6 deforms elastically, when the screw is tightened, as shown on the right of the Figure, and the lower edge 5 bites into the wall 16 of the screw-hole. A nut 9 used with the screw has a conical sealing face 10, and a cap 12 to seal the outer end of the screw.
Patent GB-619149-A (GB)
Title: Improvements in or relating to ultra-high-frequency electric circuits
IPC: H03F1/13
Filed: 1946-09-27
Abstract: 619,149. Valve circuits. PHILIPS LAMPS, Ltd. Sept. 27, 1946, No. 28912. Convention date, March 29, 1943. Drawings to Specification. [Class 40 (vi)] In a radio frequency circuit employing resonant parallel lines for tuning, the lines are made hollow so that supply voltage leads (e.g. heater or grid biass leads) may be run through them, and resonance of the thus formed coaxial lines with byepass capacitors connected across one end of these lines is prevented by terminating the other ends of the lines with resistors equal to the surge impedance of the lines, so that they always present a resistive impedance at the byepassed ends.
Patent GB-304839-A (GB)
Title: Improvements relating to acetylene cycle lamps
IPC: F21S13/00
Filed: 1927-10-31
Abstract: 304,839. Lucas, Ltd., J., and Edwards, W. H. Oct. 1927. Acetylene lamps; handles.-A cycle lamp which may also be used as a hand lamp has a slidable handle formed by a transverse member k, and a pair of vertical strip members j arranged to slide through a rotatable closure piece a at the upper end of the water chamber b so that the vertical members extend into the water chamber when the handle is not required. The dished closure piece a is held in position by a spring c acting against the rotatable head d of the valve stem e and has holes adapted in one position to register with holes i in the top of the water chamber for filling. When the closure piece a is turned so as to close the holes' i the handle can be pressed down so that the vertical members j pass through the holes i, the handle thus serving as a lock. Inturned ends L of the vertical members j take into pressed-up parts m of the closure piece in the raised position to allow of rotation to expose the holes i.
Patent GB-1179062-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices.
IPC: H01L21/00
Filed: 1967-06-23
Abstract: 1,179,062. Semi-conductor devices. TRANSISTOR A.G. 23 June, 1967 [8 July, 1966], No. 29054/67. Heading H1K. The source of a dopant to be diffused into a semi-conductor wafer is a glass layer formed thereon and including a compound of the dopant. After diffusion the glass layer is removed and electrodes are applied. The Specification describes the manufacture of a Si diode or transistor, a P-containing glass layer being formed on the wafer surface by spreading a solution of P 2 O 5  in alcohol or methyl glycol and heating to 1200 C. Alternatively a nitride of the dopant may be used, or the glass layer may be evaporated on to the wafer. The glass coating everywhere but on the diffusion area is then etched away using conventional masking or photo-resist methods, and the diffusion is carried out in an oxidizing atmosphere, which produces an oxide coating on the exposed surface. After removal of this oxide and the remaining glass layer, electrodes and a protective coating of oxide or lacquer are applied. To produce a transistor the process is repeated using B as the dopant.
Patent GB-1000743-A (GB)
Title: Process for the stabilisation of polyoxymethylenes
IPC: C08G2/00
Filed: 1964-07-15
Abstract: The terminal groups of polyoxymethylene diols are modified with epoxides in the presence of compounds containing labile halogen. Specified epoxides are propylene oxide, epichlorohydrin, styrene oxide and phenyl glycidyl ethers -compounds with more than one epoxide group per molecule may also be employed, e.g. butanediol diglycidyl ether.  Labile halogen compounds specified are triphenyl methyl chloride (particularly advantageous), alphachloromethyl ether, acetyl chloride, benzoyl chloride and chloroformic acid ethyl ester. The reaction may take place in the presence or absence of an inert medium at from 50 DEG  to 240 DEG  C.
Patent GB-1526919-A (GB)
Title: Flywheel having a cooling arrangement
IPC: H02K9/00
Filed: 1977-07-12
Abstract: The cylindrical part (6) of the cover surrounds the flywheel (2) and has fluid chambers (11), to which and from which fluid from a cooling-fluid circuit is supplied and removed. The cover furthermore has two flat parts (7) with a shaft gland (9) in front of the faces of the flywheel. In this way, the gaseous medium around the flywheel is cooled and, as a result, the heat which arises at the surface of the flywheel (2) due to the frictional losses is carried away in an effective manner. Acoustic and thermal insulation (10) of the flat parts (7) furthermore result in good soundproofing. <IMAGE>
Patent GB-445014-A (GB)
Title: Improvements in and connected with machines for making bricks and the like
IPC: B28B5/02
Filed: 1935-10-24
Abstract: 445,014. Feeding material in brick &c. making machines. CHAPMAN, W. G., 15, Rusham Park Avenue, Egham, and DUNNS' ENGINEERING WORKS, Ltd., Ten Acre Lane, Thorpe, near Chertsey, both in Surrey. Oct. 24, 1935, No. 29380. [Class 87 (ii)] In a brick &c. making machine in which a series of moulds pass under and are filled from a hopper, the amount of plastic material fed into a mould is controlled by the resistance offered by the material in a previous mould to a tamper or ram operating thereon. A frame 1 rockable about a rod 5 supports the mould while the material is compressed and is depressed against the action of a weight 11 if the resistance offered by the material is above a predetermined amount. Depending arms 13 on the frame are connected by an adjustable link 14 to a lever 15 which operates a vertically sliding shutter 6 on the hopper 2 ; the arms 13 are also connected by links 12 to a lever 7 carrying the weight 11. The tamping mechanism may comprise a pair of ram members depending from the ends of a beam which is rocked by an eccentric.
Patent GB-1003960-A (GB)
Title: Improvements in relating to slatted blinds or shutters
IPC: E06B9/36
Filed: 1962-07-31
Abstract: 1,003,960. Slatted blinds or shutters. A. KRULL. July 31, 1962 [Aug. 4, 1961], No. 29389/62. Heading E1J. A slatted blind or shutter comprises vertical slats 1 having end-pieces 2 connected together by flexible bands 6 which serve to pivot the slats in the extended position of the blind, which is achieved by operating a vertical rod 7 (Fig. 2) on the free end of the blind, the other end of the blind being attached to one window jamb by a flexible band 8. The slats are resiliently suspended on rollers 4 by bars 3 with flanged ends 12 (Fig. 8), the bars 3 carrying square plates 11 which slide in square holes 10 in the slat end-pieces 2. These end-pieces may extend the width of the slats (Fig. 1), with the slat connecting bands 6 attached by sleeves 6c to pivot pins 6a arranged at the slat edges, or the end-pieces 2 may be merely large enough to contain the mounting for the bar 3 (Fig. 10), when the connecting bands 6 have to form outward loops between the slats. The lower guide rail 5 (Figs. 6, 6a) carries a spring catch 5a which holds the blind in the stretched position, and the slats may be held at various angles to the rail by balls 13 (Fig. 8) carried by the plates 11, which engage in corresponding recesses in the flanges 12.
Patent GB-799767-A (GB)
Title: A test pattern attachment for a television camera
IPC: H04N17/00
Filed: 1956-09-26
Abstract: 799,767. Photo-electric measurement of light intensity; television. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 26, 1956 [Sept. 29, 1955], No. 29391/56. Class 40 (3). Relates to an accessory for use with a television camera, comprising a tubular body 1 adapted to fit in a lens mount 2 in the camera and containing an electric lamp 8 to illuminate a picture, such as a test pattern, in the form of a transparency which may be inserted in an aperture 4. In accordance with the invention, the current through the lamp is controlled by a potentiometer 6 and there is provided a milliammeter 9 connected with a photo-electric cell 11 which may be inserted in the light path to the camera to furnish a measure of the light intensity. The potentiometer may thus be adjusted to compensate for variations in the light due to supply voltage variations, ageing of the lamp, and cleanliness of the bulb, and possibly also cleanliness of the transparency, if this is included when the measurement is made. Reference is also made to an arrangement in which the photo-electric cell may be positioned beyond the projection lens 12 so that soiling of this may also be compensated for by the lamp adjustment. The photo-electric cell is pivoted about a shaft 15, to which a lever 16 is also secured, and is normally held out of the light path, if necessary by means of a spring, but may be inserted in the light path by displacing the lever through 90 degrees. Power for the lamp may be obtained from the camera supplies by means of spring contacts, such as 17, arranged to engage contacts on the camera case.
Patent GB-1208389-A (GB)
Title: Improvements in or relating to fluid pressure operated diaphragm switches
IPC: H01H35/34
Filed: 1969-06-11
Abstract: 1,208,389. Fluid actuation of switches. ROBERT BOSCH G.m.b.H. 11 June, 1969 [12 June, 1968], No. 29505/69. Addition to 1,196,005. Heading H1N. Better sealing of the diaphragm of a switch as in Specification 1,196,005 is obtained by providing the annular rim region of the diaphragm 8 with an axial extension in the form of a sealing lip 27 whose resistance to deformation is substantially less than that of the rest of the diaphragm. The housing shoulder 6<SP>1</SP> may be inclined slightly with respect to the shoulder 9 in order to improve the deflection of the diaphragm material outwardly towards the cylindrical inner wall of the housing 1.
Patent GB-1298675-A (GB)
Title: Electromagnetic horns
Inventor: PARKES ERIC BERNARD
IPC: G10K9/15
Filed: 1969-06-11
Abstract: 1298675 Diaphragm vibrator JOSEPH LUCAS (INDUSTRIES) Ltd 20 April 1970 [11 June 1969] 29514/69 Heading G5J A motor horn type vibrator has contacts 25, 26, which are adjusted by a bolt 27, whose head is fixed against axial movement by a member 28 enclosing the head, but leaving a portion exposed for a screwdriver. Rotation of the bolt can take place. The member 28 is made from a stepped sleeve, the smaller part being deformed to form flanges 29, the larger part being deformed over the head of the bolt. The moving contact 26 on a spring 24 is operated by a fibre washer 19 on a stepped armature 17. A moulded synthetic resin split nut 23 moves axially when the bolt is rotated to set the contacts. The winding 15 is on a synthetic resin former 14, and electrical contact is provided via a terminal, to member 21, bridge piece 22, or the contacts 25, 26 and spring 24 to the winding, whose other end is connected to another terminal. The member 28 may rotate with the bolt. An adjustable polepiece 16 is provided, and after fine adjustment with the bolt 27, the bolt 27 and the member 28 are sealed with paint which is used to coat the horn.
Patent GB-427490-A (GB)
Title: Improvements in chairs, beds, or the like
IPC: B63B29/12
Filed: 1933-10-25
Abstract: 427,490. Suspended seats and beds. AKHOONA, D. J., Dharampur, Surat, Bombay, India. Oct. 25, 1933, No. 29581. [Class 52 (ii)] A chair, bed, or the like, particularly for use on ships or rail vehicles, is suspended from a fixed frame which has arms 12 adjacent and parallel to the sides of the chair by means of chains 15, or equivalent members, having swivelling links 14, hung from the arms 12 and connected to transverse members 11 secured to and extending beyond the sides of the chair. The chains 14 may be replaced by rods provided with ball bearings at top and bottom. The back of the chair may be adjustable or may be arranged to swing backwards to form a sleeping cot.
Patent GB-682192-A (GB)
Title: Improvements in or relating to the welding or uniting of members
IPC: B23K20/02
Filed: 1949-11-18
Abstract: 682,192. Cold-pressure welding. GENERAL ELECTRIC CO., Ltd., and BENLOW, C. H. Nov. 3, 1950 [Nov. 18, 1949], No. 29588/49. Class 83 (iv). In cold pressure welding a tool or tools is or are used to form a line weld, parts of which lie at an angle to one another. The cold pressure welding of aluminium sheets is effected by a tool 1 having a wavy welding face 3, supported in a holder 5 and co-operating with an anvil 2. Both tools may have wavy faces. A cold welding roller may have a wavy or zig-zag welding rib. Welding by fusion; welding by pressure; riveted and bolted joints.-The Provisional Specification describes also the making of a line joint, parts of which lie at an angle to one another by means of pressure and fusion welding, or joining by means of adhesives, bolts or rivets.
Patent GB-665338-A (GB)
Title: Automatic protective device for an electric apparatus
IPC: H02H3/33
Filed: 1949-11-18
Abstract: 665,338. Protective cut-out arrangement. GRACIARENA, E., and EDERY, F. Nov. 18, 1949. No. 29606/49. Class 38 (v). A device for interrupting the supply to a load in the event of earth leakage, utilises the unbalance produced in the windings of a differentially-wound transformer to operate, via a valve amplifying device, a relay which in turn closes the circuit of the tripping coil of the main circuit-interrupter. For protecting a single-phase A.C. supply, Fig. 1, the unbalance produced in a low resistance differential transformer 22 in the protective interrupter group C, to which the load is connected at 26, is amplified to operate the main interrupter 27 by a group B which is supplied from an auxiliary interrupter group A connected to the supply at 1 such that when the load circuit is open no current flows to the group B. Group A comprises a pair of relays 3, 4 having armatures 6, 14 biassed to the open position. When the load circuit is closed current flows from 1a, through resistance 9, relay coil 10 of low ohmic value, terminal 11a, contacts 40 of interrupter 27, differential transformer winding 25a, the load, differential winding 25, terminal 11, and the supply line 1b. Coil 10 attracts the armature 6 thereby closing a circuit from 1a, through relay contacts 7 and relay coil 12 back to line 1b, and the armature 14 is attracted to close contacts 8, whereby a supply is established to the terminals 13, 13a of the amplifier group B and the resistance 9 is short-circuited. Unbalance from the transformer 22 excites a secondary coil 24 connected through terminals 19 to a "push pull" amplifier 17 supplied by a rectifier valve 18, the unbalance being transmitted through terminals 20 to an operating coil 35 of a relay 30. The armature 33 of relay 30 is also influenced by coils 36, 37 connected in shunt with the valve filament supply through terminals 21 to give the relay 30 greater sensitivity. When the coil 35 is energised it attracts armature 33 and closes contacts 32 to energise coil 31 whereby the armature 41 is moved downwardly and releases a spring biassed arm 42 to open the contacts 40. The contacts 40 are reclosed by pressing a button 39 on the arm 42. For a two or three-phase supply, the interrupter 27 has a corresponding number of contacts 40.
Patent GB-1525216-A (GB)
Title: Process for the manufacture of a hydroxy compound
IPC: C07C67/00
Filed: 1977-07-14
Abstract: 1525216 Ethynyl-#-ionol F HOFFMANNLA ROCHE & CO AG 14 July 1977 [15 July 1976] 29626/77 Heading C2C  Ethynyl-#-ionol is prepared by reacting #-ionone with acetylene in the presence of an alkali metal hydroxide in liquid ammonia at between about -40‹ C. and about + 30‹ C.