baber/WOPTO huggingface dataset:
Patent GB-729509-A (GB)
Title: Improvements in or relating to apparatus for measuring heights or distances by reflection of radio waves
IPC: G01S1/02
Filed: 1952-12-19
Abstract: 729,509. Frequency-modulated radar. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN.Dec. 19, 1952 [Dec. 22, 1951], No. 32242/52. Class 40 (7). In a device for determining distances by reflection of radio waves, for example an altimeter, the transmitted wave C1 (Fig. 1) is changed periodically in frequency between two constant values F and F<SP>1</SP> whereby the beat signal C3 obtained by mixing the transmitted wave with the reflected wave C2 is of pulse form the duration t of which is proportional to the distance. As illustrated in Fig. 2, the frequency of the transmitter oscillator 1, for example a klystron, is varied in frequency between F and F<SP>1</SP> by a rectangular modulating signal from 2 having a frequency 1/2T. The oscillations are applied to the aerial 4 over waveguide 3 and 3<SP>1</SP>, and also combine with the reflected signal in mixer 6. An intermediate amplifier 7 is tuned to the difference frequency and supplies the resulting pulse-form signal to a limiter 8 and amplitude detector 9. The distance is then indicated by a milliammeter 11, to which the pulses are applied through a simple RC integrating network' 10. The network may be dispensed with if the indicator has a sufficiently great time constant. A recording meter may be employed: To provide simultaneous measurement over different ranges, the modulating frequency is changed in rapid sequence to a number of harmonically related values, e.g: 750 kc/s., 75 kc/s. and 7.5 kc/s. for the three ranges 0-100 metres, 0-1000 metres and 0-10,000 metres. The change may also be effected automatically by contacts carried by the indicator which change the frequency appropriately when the pointer approaches the maximum or minimum of the scale indication. Figs. 3 and 4 (not shown) illustrate forms of construction for the mixing stage.
Patent GB-936809-A (GB)
Title: Improvements in mine cage stops for mine cars and proving mechanism therefor
Inventor: LINES CYRIL
IPC: B66B17/20
Filed: 1960-09-20
Abstract: 936,809. Transferring vehicles into lift cages. QUALTER, HALL & CO. (SALES) Ltd. Aug. 17, 1961 [Sept. 20, 1960], No. 32286/60. Class 78 (4). A system for retaining a mine car 6 in a lift cage and for proving that it is properly positioned therein before winding employs safety stops 9 or 56 which are additional to the normal end stops (not shown) and are operated by mechanism associated with a signal circuit. The wheel-engaging safety stops 9 or body-engaging safety stops 56 are mounted on the deck 4 of the mine cage and are normally held by a spring-loaded plunger 10 in the full line position blocking movement of the car, but are retractable into the broken line position in which they may be retained by catch elements 26, 27. In the lift shaft is a retractable skid 11 which co-operates with the plunger 10 to control the operation of the safety stops and associated catches and also provides signals, through a switch 54, of the position of the safety stops on the cage deck. In use, when a loaded deck 4 arrives in the position shown the extended plunger 10 pushes the skid 11 towards the shaft wall and thereby effects upward movement of shoulder 53 on angle lever 45 attached to the skid. This closes switch 54 to signal the arrival of the cage. Subsequent depression of this lever 45, by the actuation of a fluid pressure cylinder or equivalent electrically powered device 52, retracts the safety stops which, when the car 6 is run off and the cylinder 52 de-actuated, are held retracted by the interengagement of the catch elements 26, 27. When a replacement car is run on, its wheels re-position the stops by their action on the upstanding portion 24 of a pivoted lever 25 which carries the catch element 26. The consequent outward movement of the plunger 10 again actuates switch 54 so that a signal is given when the replacement car is correctly positioned on the cage deck. A plurality of pairs of wheel-engaging stops 9, each pair having an associated plunger and catch elements may be arranged along the length of the deck 4 with all the stops keyed to a common horizontal shaft 20. In this arrangement although each catch 23 is released when a wheel runs over its upstanding end 24, none of the stops move in nor is any signal given until all the catches have been released, i.e. all wheels are correctly positioned.
Patent GB-160568-A (GB)
Title: Improvements in and relating to golf balls and the process of making the same
IPC: A63B37/00
Filed: 1919-12-24
Abstract: 160,568. Roberts, F. T. Dec. 24, 1919. Balls.-A golf ball comprises a hollow core having a wall the thickness of which is equal to or greater than the diameter of the hollow at the centre of the core and formed of parts AA<1>, Fig. 1, vulcanized together and having a winding of tensioned elastic band B. The elastic winding is applied in narrow zones and in different directions upon the core and the whole is enclosed within a cover D. The core parts are placed in mould-plates 50, 51, Fig. 8, contained within a pressure chamber 32 having an inlet 30 for compressed air, a relief valve 66 and a screwed spindle 44, the lower end of the spindle engaging with a screw 54 which connects the mould-plates. Compressed air having been supplied to the chamber, the mould-plates are closed by means of the hand-wheel 48 so as to entrap compressed air within the core. The pressure within the chamber is relieved and the mould-plates are removed in their closed position to the vulcanizing-chamber. The apparatus for entrapping the air within the core is the same as that described in Specifications 4623/14, [Class 87 (ii), Moulding plastic &c. substances], and 8756/15.
Patent GB-1355461-A (GB)
Title: Pyridine-n-oxides and the manufacture thereof
IPC: C07D213/89
Filed: 1972-07-11
Abstract: 1355461 Aminopyridine-1-oxides UPJOHN CO 11 July 1972 [23 July 1971] 32415/72 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein "lower alkyl" contains 1-6 C atoms; M is C 1-6  alkyl, NH 2  or NR 1 R 2 ; R 1  is H, C 1-6  alkyl or C 3-6  alkenyl and R 2  is C 1-6  alkyl or C 3-6  alkenyl; or NR 1 R 2  is a 5-7 membered saturated ring optionally containing as ring-member O, S or N-alkyl, optionally being C 1-6  alkyl-substituted, and having a total of up to 15 C atoms. The compounds are prepared by replacing the 4-nitro group in a 2-C 1-6 -alkyl-6-M-4-nitropyridine-1-oxide by reacting it with an acyl chloride, and reacting the (e.g.) 2-C 1-6 -alkyl-4-chloro-6-M-pyridine-1-oxide with R 1 R 2 NH. Therapeutic compositions having hypotensive activity comprise compounds of the above formula, which may be administered orally, parenterally or rectally, or (e.g.) by nasal inhalation.
Patent GB-929804-A (GB)
Title: Improvements relating to electrical discharge apparatus
Inventor: HEMMINGS ROBERT FREDERICK
IPC: H05H1/02
Filed: 1960-09-21
Abstract: 929,804. Thermonuclear apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1961 [Sept. 21, 1960], No. 32437/60. Class 39 (4). In apparatus of the kind in which an electrical discharge is produced around a toroidal container formed with inner and outer walls, the outer wall 2 having sufficient conductivity to allow stabilizing currents to flow and the inner wall 1 having sufficient resistance to avoid short-circuiting the discharge E.M.F., insulating cooling liquid is circulated through the space between the inner and outer walls, the insulating liquid being at a static pressure intermediate between that of the discharge space and that of the atmosphere. The liquid is preferably an insulating oil having a low vapour pressure. In the drawing the liquid is insulated through the space by a pump 11 and passes through a cooler 13. A reservoir 15 is maintained under vacuum so that there is little pressure difference across the weak walls of the thin metal liner 1.
Patent GB-762443-A (GB)
Title: Process for polymerising cyclic lactams of ªÏ-amino-carboxylic acids
Inventor: HAMANN ADOLF
IPC: C08G69/18
Filed: 1954-11-09
Abstract: Lactams of o -aminocarboxylic acids containing seven or more ring atoms are polymerized in the presence of an alkali metal hydroxide by submitting the starting material in the molten state to intensive washing and irrigation with an anhydrous gas at a temperature below that at which polymerization occurs and then polymerizing at a higher temperature without gassing.  The gassing operation and the polymerization may be carried out continuously.  Preferred temperatures for the gassing operation are in the range 100 DEG  to 150 DEG  C.  Specified lactams are e -caprolactam, enantholactam, heptane acid lactam and c -octane acid lactam, whilst the gases used include hydrogen, nitrogen, carbon monoxide, methane or mixtures thereof or dry air free from carbon dioxide.  The examples describe the polymerization of e -caprolactam in a stream of nitrogen with (1) caustic soda, (2) caustic potash in a continuous process.
Patent GB-304427-A (GB)
Title: Improvements in or relating to air nozzles, particularly adapted for cooling and drying casks and such like
IPC: C12C11/00
Filed: 1927-12-02
Abstract: 304,427. Charriagton & Co., Ltd., and Reavenall, A. C. Dec. 2, 1927. Drying in the open.- A nozzle for drying casks &c. comprises an outer member a' attached to an air supply conduit A, and an inner member a<3> moving up and down against a spring a<2> and entering the cask. The spring bears against a flange a<4> on the inner member a<3> and against a washer a<5> or a seat on the member a. and returns the inner member to normal position after depression.
Patent GB-1177668-A (GB)
Title: Radial Cam Actuating Devices.
Inventor: SIMONS WALFORD JOHN LOUIS
IPC: H01H19/62
Filed: 1967-07-14
Abstract: 1,177,668. Cams ; valves. ROTAX Ltd. 3 July, 1968 [14 July, 1967], No. 32555/67. Headings F2K and F2V. [Also in Division H1] Microswitches 16 (or fluid control valves) are actuated by spring-loaded levers 17 when the latter are engaged by the ears 20 of respective circlips 19 carried in grooves (18, Fig. 1, not shown) in a shaft driven via reduction gearing (14) by an electric motor (15). The grooves and/or the circlips may be tapered in crosssection to enhance the resistance to relative movement between the circlips and shaft, but the circlips may be readily adjusted to.vary the timing of operation.
Patent GB-453317-A (GB)
Title: An improved method of manufacturing cast iron alloys
IPC: C21C1/08
Filed: 1935-11-25
Abstract: In making cast iron alloys by a method in which briquettes containing iron alloys are added to molten iron, the briquettes comprise both alloys such as ferro-chromium containing the metals which are to be present in the cast-iron product and also alloys such as iron-silicon-manganese or silicon-calcium containing oxygen-binding metals.  The oxygen-binding constituents are in pieces of larger size than the alloying constituents and are enclosed in more readily melting material, for example cement, than that in which the others are enclosed for example a mixture of cement and calcium carbonate.
Patent GB-320794-A (GB)
Title: Improvements in and relating to apparatus for measuring ultraviolet radiations
IPC: G01J1/58
Filed: 1928-11-08
Abstract: 320,794. Croad, A. K., (Hanovia Chemical & Manufacturing Co.). Nov. 8, 1928. Comparison photometers. - The intensity or amount of ultra-violet radiation from a light source is measured by comparison of such radiation with light emitted from a light source of variable intensity, by projecting ultra-violet rays on to a fluorescent screen in an opaque container. The light from the screen is then compared with the light from the source of variable intensity through a colour filter. The opaque casing 5 is divided by a light proof partition 6 having its upper portion 7 bent forward. An electric lamp 15 provided with current through a variable resistance 13 illuminates a ground glass screen 18 and the ultra-violet radiations are received on a fluorescent screen 20 on the opposite side of the partition 6. The upper edges of the plates 18, 20 are observed through the opening 22 which is fitted with a colour filter 23. The apparatus is calibrated so that the ultra-violet intensity may be read directly from the ammeter 17.
Patent GB-506893-A (GB)
Title: Improvements in or relating to the manufacture of flexible hose
IPC: B29D23/00
Filed: 1938-11-10
Abstract: 506,893. Flexible hose pipes. SOC. ITALIANA PIRELLI. Nov. 10, 1938, No. 32751. Convention date, Nov. 10, 1937. Drawings to Specification. [Class 99 (ii)] In the manufacture of a hose pipe comprising one or more layers of natural or artificial rubber or the like reinforced by spiral windings of textile threads, non-reinforcing threads are interlaced with the reinforcing- threads so as to form a network which becomes laid on the hose during the winding-on operation. The reinforcing-threads may be formed by two or three threads twisted together. The interlacing of the,threads and winding of the network on to the hose can be effected by an ordinary braiding-machine.
Patent GB-995591-A (GB)
Title: Packaging film and a method for its preparation
IPC: B29C41/24
Filed: 1963-08-19
Abstract: Transparent packaging film is made by extruding a continuous film of molten thermoplastic polymer on to a continuous preformed sheet of material different from the thermoplastic film, pressing the film against the sheet at the point where they are brought into contact, and contacting the film with a chill roll maintained at a temperature below the melting point of the film and having an overall surface roughness of 4-20 micro inches due to the presence of 2X104 - 12X106 hemispheroidal indentations, of diameter 50-1500 micro inches, per square inch of roll surface, the indentations being separated by highly polished areas having a mirror finish.  In an Example, molten polyethylene containing 0,2% erucamide as lubricant is extruded downwardly into the nip of two rolls between which a sheet of regenerated cellulose is passing.  (Specification 688,637) One of the rolls is a chromium plated chill roll at 65  DEG C. bearing the required number and size of indentations, so that the polyethylene coating of the sheet is impressed with nodules corresponding to the indentations.
Patent GB-1277155-A (GB)
Title: Improvements in or relating to devices for continuously tensioning metal strips
IPC: B21B1/22
Filed: 1970-07-07
Abstract: 1277155 Tensioning CREUSOT-LOIRE 7 July 1970 [30 July 1969] 32897/70 Heading B3E [Also in Division F2] A device for continuously tensioning metal strip 1 consists of a group of retaining rolls 3 over which the strip will pass and which when driven will exert forces on the strip opposite to its direction of movement f, a group of driving rolls 5 over which the strip will pass and which when driven will exert forces upon the strip in its direction of movement and disengageable coupling means by which one or more of the rolls 2, 4 of said groups respectively can be individually and selectively uncoupled from its or their drive means while at least one of the rolls of that group remains coupled to the drive means. Between the groups of rolls is situated a planishing unit or a rolling stand 6 or a combination of both. The group of rolls 4 are driven faster than the retaining rolls 2 by a shaft 8 and gearing 7 (Fig. 2, not shown) which tension the strip but in the event of the strip slackening and forming a loop between the roll groups selected rolls of each group in the region of the loop are disconnected from their drive means by a dog coupling (Division F2) and the tension is re-established.
Patent GB-837966-A (GB)
Title: Improvements in resilient platforms for the seats and backs of chairs and the like
Inventor: COX LEONARD
IPC: A47C7/32
Filed: 1957-10-22
Abstract: 837,966. Spring upholstery. COX Ltd., T. Oct. 21, 1958 [Oct. 22, 1957], No. 32928/57. Class 52(4) A resilient supporting surface for the backs or seats of chairs &c. has a central octagonal plate 1 connected by four tension springs 4, to the chair frame 6. eight shorter springs 7 are secured to the attachment links 5 of springs 4 and are connected in pairs by inextensible wires 8 having legs 9 connecting with the plate 1 by inturned ends 10, 10. Further tension springs 12, 12 lie in the plane of the surface and another tension spring 13 lies slightly above the plane.
Patent GB-398059-A (GB)
Title: Improvements to ladies' handbag frames
IPC: A45C13/04
Filed: 1932-11-22
Abstract: 398,059. Handbags. BROWN, A. F., 10, Silver Street, Halifax, Yorkshire. Nov. 22, 1932, No. 32946. [Class 133.] An inner frame forming the mouth of a pocket or compartment is pivotally attached to metal pieces A, B, projecting inwardly from the sides of one section of the mouth frame of a handbag.
Patent GB-1084852-A (GB)
Title: Improvements in formwork for concrete structural elements
Inventor: STEPHENS DAVID HUW
IPC: E04G13/02
Filed: 1964-08-13
Abstract: 1,084,852. Shuttering for casting columns & beams. JOHN LAING RESEARCH & DEVELOPMENT Ltd. July 23, 1965 [Aug. 13, 1964], No. 32964/64. Heading, E1S. Shuttering for casting columns and beams is formed in two longitudinal halves 10, 11 each half being backed by packing contained by a semi-cylindrical outer skin 22, to stiffen the shuttering and insulate the concrete while setting. The two halves are connected by hinges 15. The packing may be a rigid setting foamed synthetic resin or foamed rubber.
Patent GB-726311-A (GB)
Title: Device for slitting longitudinally webs of paper or other flexible material
Inventor: HORNSTEIN VICTOR
IPC: B26D1/22
Filed: 1953-11-27
Abstract: 726,311. Slitting paper &c. webs. JAGENBERG-WERKE AKT.-GES. Nov. 27, 1953, No. 32971/53. Class 31 (1). A device for slitting longitudinally a web 1 of paper or other flexible material passed between a smooth counter cylinder 2 and a disc knife 3 is characterized in that the disc knife co-operates with a second disc knife 4, Fig. 1, or with a guide roller 4<SP>1</SP>, Fig. 2, also applied against the counter cylinder and acting as a distance sustainer. In the form shown in Fig. 1, the disc knives, which are freely rotatable, are supported at the ends of a lever 5 freely movable around a fixed pivot 6, the weight of the disc knives being balanced by a counterweight 7 or by a spring. The disc knives may lie in the same slitting plane or in different slitting planes. More than one pair of disc knives may be provided. In the form shown in Fig. 2, the disc knife 3 and guide roller 4<SP>1</SP> are mounted respectively in separate levers 5, 5<SP>1</SP> movable about a fixed pivot 6. To accommodate irregularities in the thickness of the web, the lever 5<SP>1</SP> is provided with a stop 8 which coacts with an adjustable stop 9 provided on the lever 5, the stops being maintained in contact by means of a tension spring 10 connecting the levers.
Patent GB-1535144-A (GB)
Title: Moulded safety pin
IPC: A44B9/12
Filed: 1977-08-05
Abstract: 1535144 Safety pin D V BAGNASCO 5 Aug 1977 [27 Aug 1976] 32972/77 Heading A3H [Also in Division B5] Base 10 is moulded of resilient plastics and terminates at one end in a flexible extension 16 to which a pin 20 is attached. At the other end the pin is held in a detent 22, pin guide 24 which forms an integral part of the base 10 forming an arch over the detent 22.
Patent GB-1018365-A (GB)
Title: Improvements in gas blast circuit breakers of the axial-blast type
IPC: H01H33/70
Filed: 1964-08-13
Abstract: 1,018,365. Gas blast switches. GENERAL ELECTRIC CO. Aug. 13,1964 [Aug. 16, 1963], No. 33017/64. Heading H2B. The circuit-breaker of Specification 987,295 is modified by associating with the upstream arcing electrode 70, Fig. 2 (not shown), a magnetic coil 80 in series with the electrode so as to create a radial field in the region 90 of stagnant gas close to the surface 86 of the electrode and so cause the arc root to move around the surface. The centre of the surface 86 is cut away at 87 and further openings 88 in the cylindrical shell 85 of the electrode provide a flow of gas therethrough so as to keep the arc root away from region of minimum radial field. Alternatively the centre opening 87 may be plugged by an insulating (e.g. P.T.F.E.) member 100. In a further modification the shell 85 is slotted at 107 and provided with an insert 105 of arc resistant material such as " Elkonite " (Registered Trade Mark), the remainder of the electrode being of copper.
Patent GB-190431-A (GB)
Title: Improvements in and connected with motor vehicle or other power transmission mechanism
IPC: F16H15/10
Filed: 1921-09-14
Abstract: 190,431. Rowlands, P. O. Sept. 14, 1921. Variable-speed gearing.-In friction gearing in which one of the coacting surfaces is of india-rubber, or of one of its compounds, the said surfaces while in motion are kept supplied with water or equivalent fluid for the purpose of increasing the useful life of the rubber. A metal roller 6 coacting with a disc 1 faced with a mat of rubber 1<a> dips into water 13 in a casing 8. The water is carried to the working surfaces.
Patent GB-895163-A (GB)
Title: Improvements in butterfly valves
Inventor: MOORE WALTER LANCELOT
IPC: F16K1/228
Filed: 1957-10-23
Abstract: 895,163. Valves. BOVING & CO. Ltd. Oct. 9, 1958 [Oct. 23, 1957], No. 33041/57. Class 135. The conically dished closure disc 1 of a butterfly valve has a channel-section rib 4 extending diametrically across the disc and housing a spindle 3 which is offset so that the disc has an unbroken sealing periphery. Sealing is effected by a hollow, rubber packing ring 19 mounted in a groove formed between the periphery of the disc and a removable ring 18 and having a connection 21 with the upstream side of the disc. Instead of a hollow sealing ring a packing ring that is distorted by the pressure of the upstream fluid may be used. Also, the packing ring may be situated in the housing instead of in the disc. The downstream side of the disc has a cover plate 2. The housing consists of a short cylinder 11 welded to plates 10, 9 of which the latter has a spherically formed valve seat which may be faced with stainless steel. Between the plates 9, 10 are bracing webs 12 and bearings 7 for the spindle 3 which is operated by a screw- and-nut mechanism (not shown) engaging the end of an arm 15.
Patent GB-673647-A (GB)
Title: Improvements relating to suction cleaners and impellers therefor
IPC: A47L5/22
Filed: 1948-12-22
Abstract: 673,647. Centrifugal fans. BRITISH THOMSON-HOUSTON CO., Ltd., and STENT, T. F. Dec. 1. 1949 [Dec. 22, 1948], No. 33071/48. Class 110(i) [Also in Group XXXV] In a vacuum cleaner in which an impeller is mounted on the shaft of an electric motor which is itself insulated from the cleaner body, the accessible surfaces of the impelter are electrically insulated from the motor to prevent the possibility of electric shock on failure of the motor winding insulation. In a preferred form, shown, the fabricated or diecast metal impeller 2, having a screwed-in pulley 3 for a belt driven brush, is secured to the motor shaft 8 through a disc 9 of resin or resin bonded paper having a screwed nut at its centre and rivetted to the impeller. Alternatively the major part of the impeller could be of insulating material or a metal impeller could be covered with an insulating layer. Specification 669,558, [Group XXXV], is referred to.
Patent GB-1312790-A (GB)
Title: Combinaed radial and thrust rolling bearings
IPC: F16C19/30
Filed: 1970-07-08
Abstract: 1312790 Bearings NADELLA and A PITNER 8 July 1970 [9 July 1969] 33086/70 Addition to 1050399 Heading F2A A combined radial roller bearing and thrust bearing assembly comprises a radial flange 3 connected to a cylindrical ring 1 which forms the outer race of the radial bearing and adapted to transmit thrust exerted by the shoulder 14 to an element A through a flange 2 which is part of a sleeve D, the skirt portion 7 of which surrounds the thrust bearing. Thrust is transmitted through an annular face 3a so as to avoid concentration of force in the marginal zones of the thrust elements. The sleeve D may be a force fit on the ring 1, and may be bonded to the flange 3. A seal may be provided between the skirt portion 7, suitably extended, and the surface 15.