baber/WOPTO huggingface dataset:
Patent GB-790644-A (GB)
Title: Phenolic oxo-aldehyde resins
IPC: C08G8/28
Filed: 1955-05-02
Abstract: Phenol-aldehyde resins are made by reacting phenols with oxo-aldehydes.  Oxo-aldehydes are defined as aldehydes made by the oxonation of olefins with carbon monoxide and hydrogen.  Specified phenols are those of the general formula C6H3OHRX, where R is a hydrogen atom or an alkyl group containing 1 to 20 carbon atoms and X is hydrogen or an hydroxy group, e.g. phenol, o-, m- or p-cresol, ethyl phenol, propyl or iso-propyl phenol, butyl phenol, tertiary-amyl phenol, resorcinol, dodecyl phenol, pentadecyl resorcinol, mixed phenols from coal tar or petroleum phenols. Preferred oxoaldehydes are those of the general formula X-CHO, where X is an alkyl group containing 4 to 9 carbon atoms. Acid or basic catalyst, e.g. hydrogen chloride gas, boron trifluoride or sodium hydroxide may be used for the condensation reaction.  In the examples, an iso-octyl aldehyde is condensed with (1) phenol at a temperature of 100-110 DEG  C., hydrogen chloride gas being passed into the reaction mixture; (2) phenol at 100 DEG  C., boron trifluoride gas being passed into the reaction mixture; (3) phenol at 85 DEG  C. or 100-110 DEG  C. in the presence of aqueous caustic soda; (4) tertiary butyl phenol at 95-100 DEG  C. using hydrogen chloride gas as catalyst; (5) dodecyl phenol at 100-110 DEG  C. using hydrogen chloride gas as catalyst; (6) resorcinol at 20-30 DEG  C. using hydrogen chloride gas as catalyst; (7) resorcinol at 40-50 DEG C. in the presence of aqueous caustic soda; (8) pentadecyl resorcinol with benzene as solvent at 80 DEG  C. using gaseous hydrogen chloride as catalyst; (9) para-cresol at 100-110 DEG  C. using gaseous hydrogen chloride as catalyst.  The products may be used as modifiers for rubber or synthetic rubber or as plasticizer resins.
Patent GB-1509343-A (GB)
Title: Cylinder head gasket assembly
IPC: F16J15/12
Filed: 1976-03-30
Abstract: 1509343 Cylinder head gaskets GOETZEWERKE FRIEDRICH GOETZE AG 30 March 1976 [2 April 1975] 12764/76 Heading F2B A cylinder head gasket 12 has depressions 21, 22 in its surface 23, 24 enclosing areas which seal core holes 15, 16 of an associated cylinder block 18 or cylinder head 17, the depressions 21, 22 lying on the edges 19, 20 of the core holes 15, 16 and thus reducing damage to the gasket when it is pressed against such edges 19, 20. Fig. 2 shows a metallic gasket 12 with the depressions 21, 22 formed by metal removal. Fig. 1 (not shown) illustrates a gasket 4 of asbestos sheet with a metallic facing 7 and an embedded support, with the depressions 10 pressed into it.
Patent GB-613468-A (GB)
Title: Improvements in high vacuum condensation or diffusion pumps
IPC: F04F9/00
Filed: 1946-04-29
Abstract: 613,468. Diffusion pumps. DISTILLATION PRODUCTS, Inc. April 29, 1946, No. 12801. Convention date, May 11, 1945. [Class 71] In a multi-jet vacuum condensation or diffusion pump wherein an organic working liquid is fractionated in a plurality of boilers or in a plurality of compartments 161, 181, 201, Fig. 1, in a single boiler 42 such that the low vapour pressure components of the working fluid exert their pumping action towards the low pressure side 14 and the high vapour pressure components act towards the high pressure side 70, means serving positively to limit liquid flow into at least one boiler or compartment are provided for maintaining the working fluid at an approximately constant level in at least one of the boilers or compartments. In the construction shown in Fig. 1, the levels in the concentric compartments 181, 201 of the boiler 42 are maintained from the compartments 16<1>, 18<1> respectively by float valves 56, 60, the compartment 16<1> being supplied from a reservoir 64. The system to be evacuated is connected to the low pressure side 14 of the pump; the high pressure side being connected by a conduit 70 to a backing pump. In a modification, wherein float valves 118, 122, Fig. 4, maintain the levels in boilers 102, 104 supplied by a boiler 106, the latter is supplied with condensate liquid by an exhaust pump 126. The low pressure side 98 of the diffuser tube 90 in which are mounted jets 92, 94, 96 is connected to the system to be evacuated and the high pressure side 100 is connected to a blocking pump. In a further modification, adjustable overflow pipes 178, 194, Fig. 5, aided by transfer pumps 182, 196 maintain the level in boilers 172, 188, the former being supplied with preheated liquid condensate from the base of diffuser tubes 140, 142, 144 by a force pump 168. Non-volatilizable heavy constituents collect at the base of the boiler 206 and pass into a boiler 200 where any vapours generated pass back into the boiler 200. Specifications 473,978, 514,749, 514,766, 514,767, 514,768 and 566,814 are referred to.
Patent GB-557948-A (GB)
Title: An improved electrically operated speedometer
IPC: G01P3/46
Filed: 1942-09-11
Abstract: 557,948. Speed indicators. STERN, H. Sept. 11, 1942, No. 12830. [Class 40 (i)] The voltage or current generated by the lighting dynamo which is structurally combined with a wheel of a bicycle is measured to give an indication of the speed of the bicycle, the measuring instrument being calibrated in miles per hour. As shown in Fig. 2, the dynamo 6 is connected alternatively over a switch 2 to the lamp 3 and an ammeter 1 which may be provided with a limiting resistance. In Fig. 3, a voltmeter 1 and the lamp 3 are arranged in parallel circuits and a switch 8, 8<SP>1</SP> serves to bring a compensating resistance 9 into the voltmeter circuit when the lamp is disconnected. An adjustable resistance 10 enables the voltmeter to be used with dynamos and lamps of different characteristics and with wheels of different diameter. Instead of the resistance 9, the voltmeter may have two scales for use when the lamp is on and off. The instrument may have an additional scale graduated in volts or amperes.
Patent GB-791470-A (GB)
Title: Self-aligning bearing
IPC: F16C33/20
Filed: 1956-04-26
Abstract: 791,470. Cylindrical journal bearings. CLEVITE CORPORATION. April 26, 1956, No. 12836/56. Class 12 (1). A self-aligning bearing for a rotatable shaft 25 comprises two flanged housing members 14, 15 having their outer flange portions connected together in face-to-face relationship and inner portions forming a truncated spherical portion which supports and holds together the two parts 21, 22 of the bearing. The abutting faces of the bearing parts have annular complementary grooved and projecting portions 28, 29 and a groove 30 is provided radially inwardly of the engaging faces. The groove 30 may be filled with oil retaining material such as felt to which oil or grease may be supplied through a fitting 31. A collar 35 secured to the shaft 25 is located in the groove 30 and acts as a thrust bearing. The housing is made of metal and the bearing parts of plastic material, preferably nylon. In a modification, the bearing is split longitudinally.
Patent GB-205125-A (GB)
Title: Manufacture of weather-proof articles of ferrous alloys
IPC: C22C38/22
Filed: 1922-05-06
Abstract: 205,125. Skelley, J. M., and Continuous Reaction Co., Ltd. May 6, 1922. Alloys. - Stainless or weatherproof iron alloys suitable for making articles liable to be exposed to varying atmospheric conditions contain 12-24 per cent of chromium, 0.4-3 per cent of molybdenum, 0.85 per cent or less of carbon, and 1.3 per cent or less of silicon. The preferred percentage of carbon depends upon and increases with the percentages of chromium and molybdenum. According to the first Provisional Specification, the carbon may be as high as 1 per cent and the silicon as high as 1.75 per cent; and according to the second, the chromium may be as low as 11 per cent.
Patent GB-591265-A (GB)
Title: Improvements relating to valve mechanism for fluid pressure operated apparatus
IPC: B60T13/24
Filed: 1943-08-11
Abstract: 591,265. Fluid-pressure brakes. TOMLINSON, A. V. (Bendix-Westinghouse Automotive Air Brake Co.). Aug. 11, 1943, No. 12983. [Class 103 (i)] [Also in Group XXIX] In a control mechanism for brakes of the kind in which a manually-operable member controls the brakes through lost-motion connections directly and/or by fluid pressure relay apparatus including a self-lapping valve mechanism giving " feel " to the operator, and in which the valve mechanism is supported in a casing connected to the remotely-controlled device and having two substantially parallel bores therein with a manually-operable plunger slidable in one and the valve mechanism positioned in the other, movement of the manually-operable plunger relatively to the casing actuates the self-lapping valve mechanism through a lever pivoted in the casing and pivotally connected to the plunger, the end of the lever acting on a valve-actuating pressure-responsive member through the medium of a spring. In an embodiment, a servo-cylinder 4 is connected in the neutral position shown to atmosphere through a conduit 20, port 23, port 24, and filter 26. When a pedal 2 is depressed, a plunger 10 connected thereto pulls a lever 29 pivoted at 30 to the casing 6 in a clockwise direction, and the lower end of the lever presses on a cap 27. A graduating spring 12 transmits this motion to a cylindrical member 22 which, in its turn, contacts and moves interconnected ballshaped valves 14, 15 so that port 23 is closed and port 13 opened. This cuts off communication between the servo-cylinder and atmosphere and allows air under pressure to flow from the reservoir 5 through conduit 18, port 13, and conduit 20, to the servo-cylinder. The piston of the latter moves to the right and actuates a brake rod 3 through the medium of a lever 39, the upper end of which is connected to the casing 6 through a rod 38. The movement of the lever 39 moves the casing to the left so that the lever 29 now pivots about its pin and slot connection 31 with the plunger 10 to relieve the pressure on the cap 27 to allow the valves 14, 15 to assume an equilibrium position in which both ports 13, 23 will be closed. If the power supply fails, actuation of pedal 2 will cause a flange 42 on plunger 10 to compress a spring 32 until a sleeve 41 contacts the casing 6 to move the rods 38, 3 directly. The pressure of the fluid against member 22 and and the resistance of spring 12 imparts " feel " to the operator. A removable plate held in by a lock ring 11 allows of access to the interior of the casing.
Patent GB-647480-A (GB)
Title: Improvements in or relating to pivot centres for articulated locomotives and like vehicles
IPC: B61G5/02
Filed: 1947-05-14
Abstract: 647,480. Bearings. BEYER PEACOCK & CO., Ltd., and HADFIELD, J. May 14, 1947, No. 12993. Divided out of 647,476. [Class 12 (i)] [Also in Group XXXII] A pivot centre bearing for articulated locomotives and other vehicles, comprises coengaging male and female members 1 and 2, 3, wherein the male member and the cavity of the female member are axially tapered whereby a tilting movement in a vertical plane, accompanied by a partial withdrawal of one member relative to the other is possible. The members, although not hemispherical; may be tapered with a curved generatrix. The vertical dispositions of the members may be reversed. from those shown. The bearing-blocks may be used in a pivot centre having wear adjustment mechanism of the type described in Specifications 647,476 and 647,519, [Group XXXII], from which latter Specification the invention was divided.
Patent GB-796240-A (GB)
Title: Hose and method of manufacture thereof
IPC: B29D23/00
Filed: 1956-04-27
Abstract: 796,240. Hose pipes. NAAMLOOZE VENNOOTSCHAP VERENIGDE TEXTIEL EN OLIEFABRIEKEN AFD. P. H. KAARS SIJPESTEYN. April 27, 1956 [June 3, 1955], No. 13057/56. Class 99(2). A hose comprises a woven outer hose to which is bonded an inner hose consisting of a seamless knitted stocking coated with rubber or plastic. The knitted stocking is arranged on an inflated carrier and covered with a layer of rubber or plastic by spreading, dipping or spraying. After drying, the carrier is deflated and the stocking stripped off and turned inside out. A layer of rubber solution is applied to the inside of the woven outer layer and the stocking drawn into the outer layer to which it is bonded by vulcanization effected by steam introduced under pressure into the interior of the hose.
Patent GB-1082791-A (GB)
Title: Transmission line power attenuators
Inventor: THURNELL DUNCAN PHILIP
IPC: H03K17/74
Filed: 1963-04-03
Abstract: 1,082,791. Variable attenuators. JOSEPH LUCAS (INDUSTRIES) Ltd. July 2, 1964 [April 3, 1963], No. 13148/63. Heading H1W. [Also in Division G3] A power attenuator for a transmission line such as a waveguide 27 comprises a variableimpedance semi-conductor diode 18 which absorbs or reflects a proportion of the power flowing in the line and which is connected in a bridge network determining the bias applied to, and hence the impedance of, the diode 18. As shown, the four arms of the bridge network include the diode 18, resistors 15, 16 and a variable resistor 19. The input to the bridge is derived from an oscillator 5 by way of one secondary winding 8 of a transformer 7; the output from the bridge is applied over an amplifier 23 to a phase-sensitive detector 24 having another input from secondary winding 9 of transformer 7. The output from detector 24 is applied over a variable D.C. source 25 and inductor 26 to bias the diode 18. The arrangement is such that for any given setting of source 25 and resistor 19 the detector 24 produces an output which biases diode 18 to change its impedance until an equilibrium condition is reached; the bias across the diode will then automatically vary to maintain the diode impedance substantially constant despite, for example, temperature changes. The diode 18 could be replaced by a varactor diode, a capacitance-sensitive bridge then being necessary. For a magic-tee waveguide two diodes with their associated circuits could be connected in opposite arms, and positioned so that attenuation is high when the impedance of the diodes are balanced and low when the impedances are unbalanced; alternatively the diodes can be positioned so that the power loss from the input waveguide to the output waveguide is at a minimum when the diode impedances are unbalanced.
Patent GB-470201-A (GB)
Title: Machine for throwing projectiles by centrifugal force
IPC: F41B3/04
Filed: 1936-05-06
Abstract: 470,201. Centrifugal guns. LANDI, A. MOLLICA-. May 9, 1936, No. 13176. [Class 92 (ii)] Relates to centrifugal machine guns of the kind in which the projectiles are fed to a central chamber in a rotating cross-bar 1 which is longitudinally bored to form one or more barrels 3 for the discharge of the projectiles. According to the invention, a fixed spiral ring 14 is provided within the central chamber and the projectiles are fed eccentrically through a passage 4, Fig. 5 to the inside of the ring, and running thereon gather speed and finally leave by a tangential opening 21 leading to the bore of the cross-bar. In the form shown, the cross-bar.is driven by a motor 10 and the projectiles are fed to the ring 14 by a helical conduit 15 leading from a hopper 22. The ring 14 is carried by a casing 13 enclosing the cross-bar and having an exit opening 19 for the discharge of the projectiles, the direction of discharge being adjusted by turning the casing by a handle 20.
Patent GB-1434669-A (GB)
Title: Optical line scanning sysem
IPC: G06K7/016
Filed: 1974-03-25
Abstract: 1434669 Copying by scanning RICOH KK 25 March 1974 [22 April 1973] 13194/74 Heading H4F A line scanning system includes a rotating scanner body 26 carrying a plurality of equiangularly spaced scanning elements 44, 44<SP>1</SP>, the image of a line 14 on a document being projected on to body 26 at B; body 26 also carries a timing member 50 which carries a single set of timing marks 52 which co-operates with equiangularly spaced sensing heads 54, 56 to provide synchronizing signals, the number of sensing heads 54, 56 being equal to the number of scanning elements 44, 44<SP>1</SP>, each sensing head being associated with a respective element. Inaccuracies in the positioning of the scanning elements 44, 44<SP>1</SP> may be compensated for by moving the respective sensing heads 54, 56, e.g. sensing head 54 may be positioned at 55a instead of 55 if scanning element 44 is positioned at 44a. The scanning elements 44, 44<SP>1</SP> may be light fibres or pin-holes co-operating with a centrally placed photo-detector. Each sensing head 54, 56 includes a lamp (58, Figs. 4, 5, not shown) and a photo-detector. Frame scanning is carried out by moving the document at right-angles to the line 14.
Patent GB-119070-A (GB)
Title: Improvements in or relating to Stop Motions for Knitting Machines.
Inventor: JACKSON RICHARD
IPC: D04B35/10
Filed: 1917-09-15
Abstract: 119,070. Jackson, R. Sept. 15, 1917 Circular machines; stop-motions.-Comprises a stop-motion controlled by the wound yarn on the bobbin and consisting of a gravity-actuated dropper or spring lever provided with a pin, finger, or point adapted to engage with and be retained in a set position by the coils of yarn, which dropper or lever is released by slackening of the retaining-coils and automatically operates drive-controlling mechanism; also in a circular machine, supplementary means for effecting stoppage during reciprocatory knitting. As shown in Fig. 1, the dropper 1, connected by a cord 23 to the drive-controlling mechanism, is provided with a finger 7 normally housed in a slot 6 in the bobbin 5 and retained by the last few coils of yarn 8. Upon slackening of the coils as the bobbin runs out, the dropper falls and actuates the drive through the cord 23. Modifications are described in which the finger rests against the bottom or the outside of the coils of yarn and moves upwardly or inwardly. Fig. 4 shows a further modification, in which an ordinary bobbin is employed, the dropper being furnished with a point 14 adapted to be inserted between or beneath the coils. The cord 23 may be connected to a lever 15, Fig. 7, adapted to engage teeth 20 on a clutch member 19 to effect stoppage; or to a lever 26, Fig. 10, normally holding a pin 28 on a drive controlling lever 29 out of range of a cam 33. The supplementary stopping-means comprises a roller 40, Fig. 8, carried by a spring plunger 37 normally held up by a bolt 42, which roller, when lowered by the release of the bolt, engages with the pulley 34 of the reciprocatory drive and moves it out of range with the gear 35. The bolt 42 may be actuated directly by the cord 23 or indirectly by the lever 29, Fig. 10, or a lever 48, Fig. 7, operated by the moving clutch member, the levers 29, 48 being connected to the bolt 42 by links 47, 45 and a lever 46. Reference has been directed by the Comptroller to Specifications 950/83 and 8061/88.
Patent GB-729622-A (GB)
Title: Improvements in or relating to sea or other defensive walls
IPC: E02B3/12
Filed: 1953-05-12
Abstract: 729,622. Sea walls. DOBBIE, C. H. May 12, 1954 [May 12, 1953]. No. 13264/53. Class 68(2). A method of strengthening and preventing erosion and destruction of sea or other defensive walls built of earth, clay or the like consists in applying a layer 11 of impermeable material across the top of the wall and incorporating in the rear face of the wall a series of louvre elements 14 also of impermeable material, these elements being arranged in rows along the wall and spaced one above the other.
Patent GB-438121-A (GB)
Title: Improvements in or relating to the collection of material in pneumatic conveyance and like systems
IPC: B65G53/60
Filed: 1934-05-03
Abstract: 438,121. Dust separators. DOD, G., 35, Little Peter Street, Manchester. May 3, 1934, No. 13346. [Class 8 (ii)] [See also Group II] Dust-laden air fron pneumatic conveyer: &c. is passed into a cyclone separator c and the effluent air flows into a secon dary settling cham ber b which is, at one part at least, o the same diameter as the main cham ber a in which the separated dust fron the outlet c<2> of the cyclone together with that separated in the chamber b is received The dusty air enters the collecting chamber by a pipe a<1> and enters the cyclone by pipes c<1>, the air outlet pipes d of the cyclone deliver into ducts h in the chamber b, and the air passes to outlet pipes e shielded by a baffle cone f. In modifications (1) the air may be directly delivered to a cyclone located around the outlet of the chamber b ; (2) the cyclone may be supported from and above the collecting chamber, the air from the cyclone flowing into the secondary chamber in the upper part of the main collector, and the dust being delivered into the lower part of the collector. Specifications 21839/14 and 13306 /15, [both in Class 8 (i.i.)], are referred to.
Patent GB-734977-A (GB)
Title: Improvements in or connected with racks or stands for gramophone discs or like shaped articles
Inventor: DAVIS LEW
IPC: G11B33/04
Filed: 1953-05-13
Abstract: 734,977. Rack stands. SELCOL PRODUCTS, Ltd. May 12, 1954 [May 13, 1953], No. 13347/53. Classes 52 (2) and 52 (3). A stand for gramophone record discs or like articles comprises a base frame with opposed walls 1, 2 connected by end bars 4 from which walls rise a series of spaced arcuate bars 5 integral with the base, the whole being formed of polystyrene or like plastic by injection moulding. Inclined faces 3 on the walls 1, 2 may have index numerals moulded thereon. The stands can be superposed in nested relation for storage.
Patent GB-630520-A (GB)
Title: Improvements in rotary pumps or motors
IPC: F04C14/20
Filed: 1947-05-19
Abstract: 630,520. Rotary pumps and engines. WILCOX, J. S. May 19, 1947, No. 13430. Convention date, June 11, 1946: [Class 110(ii)] A pump (or engine) of the roller vane type has arc-shaped members 32 which are movable outwardly to alter the capacities of the working chambers and one or more end plates 52 movable inwardly to compensate f o r wear of parts. The casing 20 contains an end plate 29, secured in position by a ring 31, the plate 29 having an extension 30 forming a bearing for the rotor 27. The input to the pump is through a manifold 41, and passages 37, 42 and delivery through slots 43, in the cavity ring 28, and passages 38 leading to the boss 23. The members 32 are controlled by hydraulic pressure or mechanical means to vary the capacities of the working chambers. Delivery fluid through a pipe 66, may be used. Each member 32 has curved legs 51 which fit in shoulders in the ring 28. The latter has curved portions 45 of parabolic, semi-elliptical or other smooth curve that guide the rollers 36 on to arc-blocks 33, which may be of hardened material. The blocks 33 are pressed radially inwards. The members 32, Fig. 10, have notches 98 into which fit teeth on the movable end plate 52. The blocks 33 are similarly notched so that the plates 52 may be moved inwards under pressure to compensate for wear of the moving parts. Sealing rings 59, 61, 63 and 49 are provided. A hole 60 allows fluid under pressure to pass to the rear of the end plate 52. The roller ends may have recesses 35. As open to inspection the rollers may have a metal core coated with rubber or the like. or may have a centre bar with rounded ends on which fit loose caps so allowing for slight irregularities of the end plates. Fig. 16 (not shown) has vanes 71 in slots 72 the vanes being drilled to receive rollers 73 that project through the upper surface of the vanes. In further modifications a roller may have projecting pegs at the ends on which fit caps of rubber or the like material or the roller may be of hard steel or a steel alloy and made into a simple magnet. The latter may be used in conjunction with a ferrous ring 28 and a non-ferrous rotor 27. In another form the roller may have a smaller roller, an idler, within.