baber/WOPTO huggingface dataset:
Patent GB-968097-A (GB)
Title: Aerial navigation system with beacon identification
IPC: G01S13/76
Filed: 1961-02-24
Abstract: 968,097. Radio-navigation. STANDARD TELEPHONES & CABLES Ltd. Feb. 24, 1961 [March 1, 1960], No. 6870/61. Heading H4D. In a radio beacon of the type described in Specification 926,921 which radiates a directional pattern rotating at the rate of f1 revolution per second together with an omni-directional reference wave (F) modulated by a signal of frequency f1 synchronized with the pattern rotation and by a signal of frequency f2 (F2 >f1, but not a harmonic thereof) discrimination, at a particular beacon, against responses, which are intended for other beacons, from mobile craft equipped to receive the beacon signals and to transmit reply signals thereto is provided by making the frequency f2 characteristic of and different for each beacon and by modifying the known responder equipment on the mobile craft such that in response to interrogation by a beacon the reply signals consist of two successive feelers spaced apart by the duration of one period of the frequency f2. Fig. 1 shows a beacon station comprising a known V.O.R. (V.H.F. omni-range) beacon arrangement 1 together with an electromagnetic generator 31, 32 driven at the rate of f1 (30 c.p.s.) rotations per second and providing a signal input to amplifier 33 of 600 c.p.s. The output from this amplifier is supplied directly and via a 90 degrees phase shifter 34 to a resolver 35, the armature of which is rotated by a motor 36 in such direction and at such speed that the resolver supplies an output signal f2, e.g.=602 c.p.s. This latter signal is then employed as the additional modulation of the reference wave transmitted by the beacon. At a mobile craft (e.g. an aircraft) the received beacon transmission is supplied to a filter 53 (Fig. 2), which separates out the frequency F and supplies it to a frequency discriminator 54 from which the reference signal f1 is derived, a filter 55 which provides the pattern rotation frequency f1 and a filter 58 from which the frequency f2 is derived. The two signals of frequency f1 are supplied to a known form of automatic direction indicator 70, or to a known manual type 80 (Fig. 3), both of which operate to maintain the phase difference between the two signals at zero and supply an output signal to a pulse generator 57 in phase with the signal of frequency f1 from filter 55. The pulse output of generator 57 is then supplied to an " OR " gate 67, the output of which is fed to an AND " gate 60 which receives as a second input a pulse from a generator 59 to which the signal of frequency f2 from filter 58 is applied. On coincidence of pulses from generators 57 and 59 gate 60 supplies an output pulse which, in addition to causing the transmitter 61 to radiate a response pulse (suitably shaped by device 63), triggers a mono-stable circuit 68 to its unstable state in which it prevides a signal to hold gate 60 open so that the next pulse from generator 59 initiates a further response pulse which is transmitted by 61.
Patent GB-678038-A (GB)
Title: Coil-retaining device
IPC: G11B15/67
Filed: 1950-03-20
Abstract: 678,038. Sound film apparatus. ALLEN, H. H. March 19, 1951. [March 20, 1950] No. 6888/50. Class 40 (ii). [Also in Groups XVII and XXV] A coil-retaining device for a band of film used in sound-recording apparatus comprises a collar 1, Figs. 1 and 3, adapted to surround the convolutions of the coil 6 at a point on the circumference thereof with sufficient clearance to permit movement, and a clamp 8 pivoted to the collar and movable into the position of Fig. 3 in which it compresses the turns of the coil against the inside of the collar. This clamp is preferably a resilient cam formed of spring wire. In the form shown in Figs. 4 and 5, the collar is a U-shaped member 14, closed by a pin 16, on which is pivoted the wire clamp 19. In another similar form, a sheet of springy sheet brass bent to spiral formation is pivoted to the pin.
Patent GB-1187007-A (GB)
Title: Composite Refractory Article.
IPC: C22C49/14
Filed: 1969-02-10
Abstract: 1,187,007. Soldering. UNION CARBIDE CORP. 10 Feb., 1969 [9 May, 1968], No. 7013/69. Heading B3R. [Also in Divisions B5 and C1] A refractory composite article comprises a plurality of carbon fibres coated with silver, silver-aluminium alloys or their mixtures, and bonded by an aluminium base matrix. The coated fibres are contacted with solid aluminium base material, e.g. foil heated to, e.g. 550‹ C. in vacuo, pressed and cooled. The fibres can be randomly orientated but are preferably parallely arranged.
Patent GB-1501633-A (GB)
Title: 8-aza-4,9-dioxa-2,3-benzobicyclo-(4.2.1)octanes and method for preparation thereof
IPC: C07D498/08
Filed: 1975-06-25
Abstract: 1501633 Dioxa-bicyclo-octanes CM INDUSTRIES 25 June 1975 07014/77 Divided out of 1501632 Heading C2C Novel compounds I in which R<SP>1</SP> is C 1-4  alkyl and R<SP>4</SP> is halogen, are prepared by treating a compound II with a basic agent in a dipolar aprotic solvent. Compounds II are prepared by condensing a R<SP>4</SP>-substituted salicylaldehyde with a 1-chloro- 2 - hydroxy - 3 - C 1-4  alkylamino - propane in the presence of a dehydrating agent.
Patent GB-217300-A (GB)
Title: Improvements in machines for vapourising and spraying water, insecticides, scents, or other liquids
IPC: B05B1/34
Filed: 1923-03-12
Abstract: 217,300. Reason, H. L. March 12, 1923. Air - pressure sprayers; spraying- apparatus. - Apparatus for spraying water insecticides, perfume, &c. comprises a container 1 for the liquid to be sprayed, a pump 7, and an outlet pipe 16 secured near the centre of the side of the container to allow a stream to pass when the pump is operated, and a dip pipe 22 so arranged that when the apparatus is turned about a horizontal axis it permits liquid to pass to the sprayhead 29 but when it is turned into the position shown communication therewith is interrupted.
Patent GB-1199012-A (GB)
Title: A process for the manufacture of Polyene Compounds
Inventor: WEEDON BASIL CHARLES LEICESTER
IPC: A01N37/42
Filed: 1967-02-14
Abstract: 1,199,012. Polyene compounds. F. HOFFMANN-LA ROCHE & CO. A.G., and B. C. L. WEEDON. 14 Feb., 1968 [14 Feb., 1967], No. 7094/67. Heading C2C. The invention comprises aldehydes of the general formula in which R<SP>1</SP> is oxo, C 1 -C 7  alkylenedioxy or dialkoxy and R<SP>3</SP> represents CHO. They may be prepared by reducing an acetylenic compound of formula in which R<SP>2</SP> is a protecting group and R<SP>4</SP> is C 1 -C 7  alkylenedioxy or dialkoxy, with an alkali metal (e.g. Li) aluminium hydride to yield an olefinic compound of formula removing the protecting groups R<SP>2</SP> and R<SP>4</SP> by acid hydrolysis, reintroducing the R<SP>4</SP> group, if desired, and oxidizing the alcohol product, e.g. with manganese dioxide or chromic acid, to the desired aldehyde. Suitable protecting groups R<SP>2</SP> are those of formula in which R<SP>5</SP> is a C 1 -C 7  group and R<SP>6</SP> and R<SP>7</SP> each represent a C 1 -C 7  alkyl group or together form a trimethylene group. The acetylenic compound referred to above may be obtained by protecting the hydroxy group of cis-3- methyl - pent - 2 - en - 4 - yn - 1 - ol (e.g. by treating with isopropenyl methyl ether) and reacting the resisting alcohol of formula with a 2,6,6 - trimethyl - 4 - (C 1 -C 7  alkylenedioxy) - 2 - cyclohexen - 1 - one or a 2,6,6- trimethyl - 4,4 - dialkoxy - 2 - cyclohexen - 1 -one by means of a metal-organic reaction, e.g. by a Grignard reaction. Those aldehydes, in which R<SP>1</SP> is an alkylenedioxy or dialkoxy group may also be prepared by reacting a 2,6,6-trimethyl- 4 - (alkylenedioxy) - cyclohex - 2 - en - 1 - one or a 2,6,6 - trimethyl - 4,4 - dialkoxy - cyclohex- 2-en-1-one with cis-3-methyl-pent-2-en-4-yrrl-ol by a Grignard reaction, oxidizing the hydroxymethyl group of the resulting acetylenic alcohol and reducing the triple bond to a double bond. Those aldehydes in which R<SP>1</SP> is an oxo group may be prepared by this method with the additional step of hydrolysing with an acid the product at any stage. The aldehydes described above may be oxidized to give compounds of Formula (I) in which R is a C 1 -C 7  alkyl group. The oxidation may be carried out by means of silver oxide at 0-50 C. and the product may be converted to an ester by means of a diazoalkane, a C 1 -C 7  alkanol or an alkyl halide.
Patent GB-207103-A (GB)
Title: Improvements in tires
IPC: B60C7/12
Filed: 1923-03-12
Abstract: 207,103. Escher, C. March 12, 1923. Spring wheels.-Between an outer rim 17, carrying a tread member 18, and an inner rim 12, carried by the felly 11, there is interposed an annular cushion member 16, or two such members side by side with means such as the ring 30 and pins 31, for preventing relative circumferential movement, the members 16 being secured to the inner rim by radial bolts 20 passing through countersunk holes 19 in the cushion members, disposed centrally of the cross-section thereof. Angular rings 22, 23, secured to the outer rim 17 and to the cushion member, prevent relative movement. In a modification, a band carrying the outer tread is pressed over a rim with inwardly turned side flanges secured to the cushion member and having holes in register with the countersunk holes therein.
Patent GB-568603-A (GB)
Title: Improvements in or relating to control devices for constant speed units of aircraft
IPC: B64C11/30
Filed: 1943-05-06
Abstract: 568,603. Linkwork. TAMPIER, R. J. C. May 6, 1943, Nos. 7165/43 and 10641/44. [Class 80 (iii)] [Also in Group XXIX] In a constant speed unit controlling a variable-pitch propeller on an aircraft, which is associated with a device for feathering the propeller, the spindle 3. Fig. 4, of the constant speed unit carries a composite arm 1 which is actuated from the pilot's control lever 19 to rotate through an angle showing a mechanical advantage over the movement from 19a to 19b of lever 19 during the feathering operation. The arm 1 has a cylindrical upper end housing a spring which presses the foot of an L-shaped lever 9 against a stop. The lever 9 is pivoted at 10 on the arm 1 and is formed with a cut. away portion constituting an abutment surface 18 for a stop 17 carried by the connecting rod 15. When lever 19 is moved from 19c to 19a, arm 1 moves'as a whole and turns the spindle 3 through a comparable angle ; this movement controlling the speed of the engine. At point 19a, stop 17 contacts surface 18 and, during the further movement of lever 19 to point 19b, corresponding to the feathering operation, lever 9 will be held stationary relative to rod 15, but will pivot on arm 1 so that the latter is swung through an angle larger than that covered by lever 19. In a modification. Fig. 9, arm 1 is replaced by a lever 22 with a forked upper end in which is pivoted a further lever 23 connected to rod 15. The upper end of lever 23 carries a roller 25 which runs against a cam surface 26 bolted to the casing of the constant speed unit. During the first movement of the operating lever 19, levers 22, 23 move together, but the end part 20 of the cam surface causes them to move relatively to each other during the " feathering " movement of lever 19 to give the greater angular movement of spindle 3.
Patent GB-265406-A (GB)
Title: Improvements in cigarette ash trays
IPC: A24F19/00
Filed: 1926-03-15
Abstract: 265,406. Perrett, I. G., and Greene, J. A.. March 15, 1926. Ash-trays ; cigarette rests.- An ash tray is provided with a cigarette rest constituted by a number of sharp undulated concentrically disposed edges b, c, which may be integral with the tray, as shown, or may be formed of wire or of vertically arranged strips of thin sheet metal or other material.
Patent GB-374443-A (GB)
Title: Improvements in valves and valve gear for engines and pumps
IPC: F01L15/08
Filed: 1931-03-07
Abstract: 374,443. Valves; valve gear. SOC. ANON. INGO, 33, Via San Gregorio, Milan, Italy. March 7, 1931, No. 7188. Convention date, March 7, 1930. [Class 7 (vi).] A curved.slide valve A arranged between the piston and cylinder is provided with a port H which registers with the inlet I, the exhaust O being controlled by the piston. The valve is provided with lugs E which engage a pin C carried by an extension B on the connecting-rod F. The valve slides in a recess in the cylinder bore or in a recess in the piston ; or the valve may be flat and slide in a recess without the cylinder bore.
Patent GB-673421-A (GB)
Title: Improvements relating to aircraft
IPC: B64C27/26
Filed: 1950-03-22
Abstract: 673,421. Aircraft. TUCKER & SONS. March 22, 1950, No. 7207/50. Class 4. An aircraft capable of functioning as an aeroplane during normal flight, and as a helicopter when taking-off and landing, comprises a vertical post 7 rotatably mounted on the fuselage and a pair of wing sections 5, 6 mounted on spindles 9 projecting from the post whereby the angle of incidence of each wing section can be varied or reversed, means, such as a roller 18 engaging a recess 19 in a cam 20 carried by the post 7, for releasably locking the post against rotation, and an engine and propeller unit 22, 24 mounted on each wing section, one or each of the propellers being of the reversible-pitch type. For aeroplane operation the roller 18 is moved into engagement with the cam recess 19 by a hydraulic ram, to prevent rotation of the post 7, and the wings adjusted to the same angle of incidence by hydraulic power units. To enable the machine to operate as a helicopter the post 7 is released, the wings are set at opposite angles of incidence by the power units, and the pitch of one of the propellers 24 reversed.
Patent GB-706662-A (GB)
Title: Improvements in and relating to glass tubulatures for feeding mercury
IPC: H01J9/395
Filed: 1952-03-20
Abstract: 706,662. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. March 20, 1952 [March 21,1951], No. 7213/52. Drawings to Specification. Class 39(1) [Also in Group XXIII] A glass .exhaust tube through which mercury is passed into the envelope of an electric discharge device, is coated internally with an oxide of titanium, antimony or tin so as to provide a surface which is resistant to wetting by the mercury. The coating is carried out whilst the tube is being formed (see Group XXIII).
Patent GB-143670-A (GB)
Title: Improvements in and relating to sound recording and reproducing machines
IPC: G11B3/46
Filed: 1919-03-24
Abstract: 143,670. Lewis, A. March 24, 1919. Tool arms and mountings; securing tools to arms or levers.-The needle of a gramophone sound-box is held in position without the aid of the usual screw clamp, by placing it in two oppositely-directed V-shaped slots one above the other, and the weight of the sound-box acts on the upper end of the needle by means of an inclined plane tending to thrust the needle into the narrow parts of the V-slots. The stylus lever C is secured to a vertical bar D the upper end of which has a conical bearing in the upper bracket E, and the lower end has a vertical knife-edge pressed into a slot in the lower bracket E by an adjustable spring E<1>. As shown in Fig. 1, the brackets E are mounted on the tone-arm B; but they may be mounted on the sound-box case A. A frame F secured to the bar D has an inclined surface G resting on the upper end of the needle H, which is inserted in an inclined direction through V-shaped slots in the lower member of the frame F and in the stylus lever C respectively. These slots are oppositely tapered and are so arranged that the weight of the sound-box bearing on the upper end of the needle causes it to wedge itself in the slots. A tubular guide may be provided on the frame F to facilitate insertion of the needle.
Patent GB-1417764-A (GB)
Title: Vibration damped transducer head assembly
IPC: G11B21/21
Filed: 1973-02-14
Abstract: 1417764 Vibration damping XEROX CORP 14 Feb 1973 [14 Feb 1972] 7247/73 Heading F2S [Also in Division G1] A transducer head 27 (Fig. 3) supported by a cantilever arm 28 for linear movement over a scale 26, has a mechanical damping assembly 31 to minimize vibration. The damping mass 31, made of non-magnetic stainless steel, has a thinner portion 31b attached to the arm 28 through a sheet 32 of energy-absorbing material, using a rubber base adhesive for fixing the mass 31 and the sheet 32, and a thicker portion 31a overhanging the head 27 and in line with the direction of movement of the assembly.
Patent GB-107219-A (GB)
Title: Improvements in Processes for Converting Cellulose into Glucose.
Inventor: KOCHER RUDOLPH ALFRED
IPC: C13K1/02
Filed: 1916-05-23
Abstract: 107,219. Kocher, R. A. May 23, 1916. Glucose is prepared from a cellulose-containing substance, such as sawdust, by subjecting the material to the action of hydrochloric acid gas in a closed container, the water present being insufficient to render fluid any substantial part of the mass throughout the process; the pressure, temperature, and other conditions are such that the gas forms with the water a solution of approximately 40 per cent strength or over. The reaction may be carried on at a temperature of 15-16‹ C. or at a higher temperature, such as 40 or 60‹ C., with a correspondingly increased pressure, the time being shortened at the higher temperature. The excess of hydrochloric acid is withdrawn from the mass when the conversion is completed either by forming a partial vacuum in the vessel or by blowing through a current of air. The glucose may be dissolved out of the mass with water, or, if it is desired to ferment it, the mass may be treated with water and fermented without separating insoluble matters. Hydro-, hydrato-, and oxycellulose may be hydrolysed to glucose by the above described method. Specifications 268/80, [Class 1, Acids, alkalies, &c.], 11407/84, and 11557/84 are referred to.
Patent GB-1359671-A (GB)
Title: Connectors for printed circuit boards
IPC: H01R12/71
Filed: 1972-04-25
Abstract: 1359671 Electric couplings FERRANTI Ltd 25 April 1972 [18 March 1971] 7347/71 Heading H2E A connector 10 for interconnecting printed circuit boards 16, 16<SP>1</SP> comprises an insulating body 11 having grooves 22 receiving contact members 12. Each contact member has contacting portions 29 which are extensions of a central coil-spring 28. In use, the connector is clamped to the opposing contact-carrying edges 14, 14<SP>1</SP> of major surfaces 15, 151 of the boards as shown; the contacting portions 29 connecting opposing contacts 13, 13<SP>1</SP>. The contact members are held biased by the abutments 25 co-operating with arms 27 which are received in slots 24. A V-shaped notch 26 accommodates the coil spring as shown. The connector holds the boards together by dowels 18 and bores 17, and is clamped in place by means of screws 20 cooperating with a base member, or another similar connector, on the reverse faces of the boards.
Patent GB-1024411-A (GB)
Title: Improvements in or relating to arc welding
Inventor: PUMPHREY WILLIAM IOWAL
IPC: B23K35/30
Filed: 1964-02-21
Abstract: A wire for use in automatic CO2 gas shielded welding of fully austenitic steel has the following composition:- .C.0.05-0.2% .Cr.22-27% .Ni.16-21% .Si.0.8 maximum .Mu.0.5-5% .S.0.04% maximum .P.0.04% maximum .Mo.1.4% maximum the balance being iron.  The shielding gas may be pure CO2 or a mixture of at least 75% by volume of CO2 with an inert gas.  Up to 3% of oxygen may also be present.
Patent GB-217963-A (GB)
Title: Steel and process for manufacture thereof
IPC: C21C7/00
Filed: 1923-03-15
Abstract: 217,963. Thompson, W. P., (Commercial Steel Co.). March 15, 1923. Alloys.-Molten baths of steel or steel alloys are subjected, just before pouring, to a sudden shock by the explosion of an explosive material consiting of an intimate mixture of fuel and an oxidizing agent. The explosive material may be added in one charge or in successive charges either by introducing into the bath the mixture enclosed in inflammable envelopes such as paper bags or by introducing them into a blast of air or gas, the latter if desired forming the fuel of the mixture. The mixture becomes ignited below the surface of the bath and causes a. violent reaction. large quantities of gas being liberated, and when the action has subsided, the metal is poured into a ladle or mould. The process may be carried out in an open-hearth or electric furnace, or in a converter. One example of an explosive mixture used contains 2 to 4 pounds of pulverized charcoal, about 4 ounces of potassium chlorate, and about 8 ounces of barium dioxide, this quantity being sufficient for one ton of metal. The mixture mav also be introduced in heat-resistant enclosures, forced below the surface bv means of rods or passed down a tube of heat-resistant material inserted in the bath. To prevent any change in the carbon content of the bath, tungsten concentrates or chrome ore or a mixture of these ores may be added to the bath before treatment.
Patent GB-894821-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/14
Filed: 1957-03-06
Abstract: 894,821. Disc brakes. JOHNSON, E. W. June 6, 1958 [March 6, 1957; March 25, 1957; Jan. 27, 1958; March 3, 1958], Nos. 7475/57, 9750/57, 2663/58 and 6752/58. Class 103 (1). A brake system comprises a non- rotatable braking member mechanically urged against a rotatable member'and moved away from the rotatable member by pressure means including piston means and a booster between an operator actuated control member and the piston means. Friction pads 19, 20 are applied to a disc 11 by sets of Belville washers 18 housed in cups 17 screwed into bores 15 in opposite limbs of a fixed bridge 14, the brake being released by fluid pressure supplied via connection 28 to chambers 26 to move annular pistons 21 away from the disc 11, the pistons 21, 22 being attached to pads 19, 20 by a screwthreaded stud 23, the chambers 26 being primed through a connection 27. The pressure in each chamber 26 normally at a maximum is developed primarily in a master cylinder or a pump, pressure from which acts on a piston 32 in a booster 29 secured to the bridge 14, the piston 32 forcing a stem 34, Fig. 2, into a chamber 35 connected to chambers 26 to create a high pressure, the master cylinder including a plunger spring biased to expel fluid from the master cylinder to the booster 29, pressure from the master cylinder or a pump being relieved for brake application. On wearing of the friction pads 20, the pistons 21 will be forced further into chamber 26 on brake application and the excess fluid in chamber 26 is expelled via a bore 37 and ports 38 in stub 24 (not shown) into the booster 29 when the piston 32 is raised and escapes through port 36 for lubrication purposes. In a modification in Fig. 3, one of the pads 20a is fixed to a bridge arm by support 19a and stud 41 and the bridge is mounted for limited axial movement by attaching its long arm to a fixed member by two pairs of links 43, one pair on each side of the bridge arm. The links 43 may be extended in one direction to frictionally engage a pad, of nylon for example, on the bridge to restrict freedom of movement of the bridge. In a further embodiment, Figs. 8 to 9 (not shown), a pneumatically operated booster is common to both actuators and the pads are applied to the disc by arms pivoted intermediate their lengths to the bridge. A hand lever may be used by a by-pass circuit between the booster and brake, the brake pedal being only inoperative when the hand lever is in the brake release position. In the first Provisional Specification six washer-containing cups are used, arranged in three opposed pairs, each set of three cups being connected to a pad-carrying segmental member, these members being connected together by pins located externally of the disc, each member being slidably mounted on two studs extending from the bridge arms. A system employing a pump and having electromagnet control is also described. Reference has been directed by the Comptroller to Specification 815,375.