baber/WOPTO huggingface dataset:
Patent GB-1394985-A (GB)
Title: Control arrangements for own doppler nullification in sonar  systems
IPC: G01S7/56
Filed: 1967-06-09
Abstract: 1394985 Sonar systems PLESSEY CO Ltd 22 Aug [1968 [9 June 1967] 26754/67 Heading H4D A conventional sonar system (Fig. 1, not shown) carried by a ship 6, Fig. 2, and generating a signal having a frequency dependent upon the relative velocity of a target 7 with respect to the ship includes a control arrangement for nullifying the Doppler effect due to the ship motion, this arrangement generating a control voltage proportional to the quantity V T COS# T +V R COS# R  where V represents the ship velocity, # represents the angle between the direction of ship travel and the line of sight with the target and T and R represent the values of V and # at the instants of transmission and reception, respectively, of the acoustic signal. The control voltage is used to modify the frequency-dependent signal to produce a resultant signal having a frequency dependent upon the absolute velocity of the target. As shown in Fig. 3, the receiver mixer 8 receives a sonar signal from a submerged transducer and also a signal from a second mixer 9, the mixer 9 having a fixed frequency input and also a correcting frequency input derived from own Doppler nullifier computer 11. The computer 11, Fig. 4, for deriving VTCOS# T  + V R COS# R , comprises a V T V R  servo 12 generating an A.C. voltage proportional to the ship's speed, this voltage being fed to the stator windings of three synchro resolvers 13, 14, 15. The three resolvers correspond with three channels related to three 30 degree sectors covered by the sonar, i.e., a centre sector and left and right hand sectors adjacent the centre sector. The rotors of the resolvers 13, 14, 15 are ganged together and rotated by a # T # R  servo 16 through the angle #, the power being derived from the ship's gyro compass. The A.C. outputs from the resolvers are proportional to Vcos# and are fed to phase conscious rectifiers 17, 18, 19 which generate D.C. outputs having levels proportional to Vcos#. The outputs from rectifiers 17, 18, 19 are fed via T/R switches 20, 21, 22 to a respective memory device 23, 24 or 25 during transmission or a respective amplifier 26, 27 or 28 during reception, the outputs from 23... 28 being continuously added in devices 29, 30, 31. Thus the quantity V T COS# T +V R COS# R  is derived separately for each channel and is fed to the voltage controlled oscillator 10 related to that channel.
Patent GB-999719-A (GB)
Title: Improvements in or relating to storage cabinets
IPC: A47B63/02
Filed: 1964-06-29
Abstract: 999,719. Cabinets. SUPREME STEEL EQUIPMENT CORPORATION. June 29, 1964 [July 5, 1963], No. 26765/64. Heading A4B. A cabinet for storing paper, books or other goods consists of a frame with top 1, bottom 2 and sides 3 within which is fixed a set of cradles 5 carrying drawers 6, vertical posts 8 between the cradles having secured thereto horizontal tracks 10, 19 upon which travel cradles 11 by means of rollers 18, 18<SP>1</SP> and lower rollers 24, 24<SP>1</SP> which contact the lower track.
Patent GB-694016-A (GB)
Title: Improvements in a device for measuring resistance changes
IPC: G01R17/10
Filed: 1951-11-16
Abstract: 694,016. Electrical tests and measurements. GUSTAFSSON, G. V. A. Nov. 16, 1951 [Nov. 24, 1950], No. 26874/51. Class 37. Apparatus for determining the value of a low resistance 1 (Fig. 1) at a distance from a measuring bridge without introducing inaccuracies due to contact resistance, lead resistance, &c. comprises duplicate connecting wires 5, 6 between the ends of the pairs of arms 1, 2 and 3, 3, one of which 5 contains an ammeter 7, and the other 6 a potentiometer 8 whose slider is joined to the power supply, the potentiometer 8 being adjusted until meters 7 read zero, after which the meters are short-circuited and a reading taken on the bridge balance meter 4. The bridge arms may include a number of seriesconnected resistors 10, 11 (Fig. 3), connected on either side of a slide-wire 12, the overall resistance of the two arms being maintained constant by mechanically connecting the switch arms 13 so that the resistance cut out in one arm is added in the other. The range may be increased by further joint-operated banks of resistances 15, 16. When the resistors 1, 2 are themselves some distance apart they may be interconnected by double wires 18, 19 (Fig. 5), the wires 18 being joined through two equal resistors 20 to the balance meter 4, and the wires 19 being joined together. The variable resistor 1 may be shunted by a resistor 23, and fixed resistor 2 by variable resistor 22 to allow the bridge to be used with different resistors 1<SP>1</SP>, chosen by switches O<SP>1</SP>, O<SP>2</SP>. The bridge arms 1, 2 and 3, 3 may be fed from separate D.C. or A.C. supplies, the voltages being adjusted to give zero readings on meters 7, thus obviating the need for potentiometers 8.
Patent GB-463439-A (GB)
Title: Recovery of sulphur
IPC: C01B17/06
Filed: 1935-09-28
Abstract: Sulphur is obtained by heating pyrites to remove the volatile sulphur atom and forming iron monosulphide, which is then oxidized to iron oxide and sulphur dioxide, e.g. in a multiple-hearth roasting furnace, in a molten bath or in suspension.  The sulphur dioxide produced is then reduced to sulphur, if desired after concentration by absorption in suitable liquids, e.g. water, p  ammonium sulphite and bisulphite, sodium borate, calcium borate, sodium and calcium phosphates, aniline and triethanolamine, and the hot gases resulting from the reduction are used to effect the distillation of the volatile sulphur of the pyrites.  The oxidizing operation is preferably conducted so that the exit gases are at a sufficiently high temperature to maintain the reducing reaction, otherwise air, &c., may be added to the gases to maintain the required temperature by reaction with part of the reducing agent.  The gases from the reducing reaction preferably leave at a temperature of 1000 DEG --1200 DEG  C., and are substantially free from oxygen.  They are cooled to a temperature between 550--900 DEG  C., before contact <PICT:0463439/III/1> with the pyrites.  In the apparatus shown, the iron monosulphide from the treatment of pyrites is oxidized in a multiple hearth roaster 10, the exit gases being passed through a water-cooled heat exchanger 15 before passing through a packed tower 20 wherein the sulphur dioxide content of the gases is absorbed by a water spray.  The liquid collected at the base of the tower is treated in a gas separator 28 containing a steam coil 30 fed from the heat exchanger 15.  The liquid is then cooled and returned to the tower 20.  The effluent gases, containing sulphur dioxide, are treated in the reducing furnace 36, being reduced by passage through a porous coke bed.  Extra air may be admitted through inlet 37.  The exit gases are cooled in a water-cooled heat-exchanger 48 and then passed through a charge of pyrites in distillation chamber 55, being fed in through tuyres 56.  The iron monosulphide residue from the pyrites is conveyed to the roasting furnace 10 by conveyer 13, and the sulphur-laden gases are passed through a dust-collector 64, condenser 66, maintained at a temperature of 115--150 DEG  C. and finally through an electrical precipitator 72. The pyrites may be treated in the form of a bed or in suspension.  The Specification as open to inspection under Sect. 91 describes also a process wherein iron sulphide is oxidized to give a gaseous product containing sulphur dioxide which is then reduced to sulphur.  This process forms the subject-matter of Specification 463,685, and does not appear in the Specification as accepted.
Patent GB-394942-A (GB)
Title: Improvements in or relating to the separation of suspended particles from liquids
IPC: B01D21/00
Filed: 1931-09-28
Abstract: In order to facilitate the separation of suspended particles from liquid, the liquid is subjected to reduced pressure or vacuum.  Gas is thus separated and lighter solid matter rises to the surface and heavier matter settles.  It is stated that suction may be applied at the bottom of the liquid.
Patent GB-900550-A (GB)
Title: Improvements in or relating to servo-systems
Inventor: NUTTER JACK CROSSLEY
IPC: G01F1/36
Filed: 1959-08-06
Abstract: 900,550. Measuring systems. ELLIOTT BROS. (LONDON) Ltd. Aug. 8, 1960 [Aug. 6, 1959], No. 26964/59. Class 40 (1). [Also in Group XXXVI] A system for giving an output proportional to the square root of an input comprises two linear position transducers mechanically coupled to a diaplaceable member and electrically connected in series, means for supplying a reference signal to the first transducer, a comparator unit supplied with the output of the second transducer and with a signal representing a physical quantity to give an error signal representing the difference between its inputs, and means to displace the member in accordance with the magnitude of the error signal. In Fig. 1 the rate of flow of fluid in a pipe 8 is determined by measuring the pressure drop across an orifice in a device 10, which moves the core of a differential transformer 11 by an amount proportional to the pressure drop and hence to the square of the rate of flow. The output of the transformer 11 is passed to a comparator 7 (whose function is described below) and thence to a high-gain feedback amplifier 6 which incorporates a phasesensitive rectifier. The amplified signal drives a motor 5 to rotate a shaft to which are coupled the cores of two further differential transformers 1 and 2. The first of these is supplied from the same source as transformer 11 and gives an output proportional to #, the angular displacement of the shaft 4. This output is amplified and passed to the second transformer 2, whose output (proportional to #<SP>2</SP>) is fed back to the comparator 7. The signal from the conparator is the difference of its inputs, so that the shaft is set in a position where #<SP>2</SP> is equal to the pressure signal from transformer 11 and the comparator output is zero. The value of #, which thus represents the rate of flow in the pipe 8, can be shown by a pointer on the shaft 4 or as an electrical signal taken from the input to transformer 2. The first transformer 1 is arranged to give zero output for zero angular displacement of the shaft, but the core of transformer 2 is preferably offset from this position so that a small " negative " displacement of the shaft is necessary to reduce its output to zero. This prevents a fall of sensitivity as the (positive) displacement becomes small, and also avoids instability if the shaft should move into a negative displacement position. The response of the system is linear except for low values of input, and it is often convenient to arrange that the extrapolated linear part should pass through the origin. This can be done by angularly displacing the pointer on the shaft 4 and introducing a corresponding bias into the electrical output signal.
Patent GB-1235699-A (GB)
Title: Improvements in or relating to a noise prevention device in a clutch disc assembly
IPC: F16F15/12
Filed: 1968-06-06
Abstract: 1,235,699. Damped resilient clutch disc. DAIKIN SEISAKUSHO K.K. 6 June, 1968 [10 June, 1967], No. 27021/68. Heading F2U. In a friction clutch plate of the type wherein cushioning springs 7 are arranged between spaced plates 1 and 3, fast with a friction lining disc 4, and a flanged hub 2, a vibration damping friction washer 8 and ribbed rubber ring 9 are disposed between the hub flange 2b and plates 1 and 3 respectively, the annular rubber member 9 housing tangential facial ribs 9a chamfered at their edges (9c) (Figs. 8 and 10, not shown) and engaging in corresponding grooves 2e, 3c in the hub flange 2b and plate 3, torsional loading tending to twist the ring 9 between the flange 2b and plate 3 causing the ribs 9a to ride out of the grooves 2e, 3c to cam the flange 2b and plate 3 apart whereby the friction washer 8 is axially loaded and jointly assists the stressed rubber ring 9 to dampen vibration and noises. The dampening effects of the rubber ring may be changed by varying the inclined angle # (Figs. 9 and 3, not shown) of the tangential ribs 9a and corresponding co-operating grooves 2e, 3c.
Patent GB-1360120-A (GB)
Title: Cans
IPC: B65D39/04
Filed: 1972-06-09
Abstract: 1360120 Cans; can lids METAL BOX CO Ltd 17 May 1973 [9 June 1972] 27096/72 Headings B8D and B8T A metal can body 12 is closed at its upper end by a metal cap 5 incorporating a plastics annulus 1, which has a plug-fit within the can body or an inward curl 14 thereon and which is retained in the cap with its upper end 3 abutting the cap by a projection 4 co-operating with an inward curl 8 on the cap skirt 7. The can body is closed at its lower end by a transparent or translucent plastics bottom member 10 having a groove 13 receiving an inward body curl 13. Alternatively, a metal bottom member may be integral or seamed to the body.
Patent GB-656458-A (GB)
Title: Improvements in cooling arrangements for electrical transformers
IPC: H01F27/22
Filed: 1947-10-09
Abstract: 656,458. Transformers. ETABLISSEMENTS MERLIN & GERIN. Oct. 9, 1947, No. 27114. Convention date, Dec. 10, 1943. Addition to 648,697. Drawings to Specification. [Class 38 (ii)] A cooling device for electrical transformers as claimed in the parent Specification is modified by the provision of a tank having corrugated side walls 2, the outermost points of which corrugations do not project beyond the limits of a geometric figure defined by the portions of the tank which are not constituted by the corrugations. Metallic bands are placed around the tank to protect the corrugated walls against shock and vibration.
Patent GB-746755-A (GB)
Title: Improvements in or relating to lifting trucks
IPC: B62B3/06
Filed: 1952-10-29
Abstract: 746,755. Lifting trucks. DIDSBURY ENGINEERING CO., Ltd., and FRANKS, A. L. Jan. 25, 1954 [Oct. 29, 1952; Feb. 25, 1953], Nos. 27147/52 and 5233/53. Class 78 (3). A lifting truck having a wheeled frame and a handle whereby it may be tilted about a transverse axis has a load support comprising two coacting pivoted jaws lowered by such tilting into contact with the floor, the jaws being operatively connected to a manual actuating member carried by the frame whose movement causes the jaws to be entered beneath, and at opposite sides of, the load so that the load can be lifted by reverse tilting of the frame. The truck comprises spaced upper and lower transverse members joined by side members 12. A member 17 is secured to the lower transverse member and a member 18 connects it to the upper transverse member 13. A propelling handle 20 is secured to the member 17. The lower flange of the lower transverse member is cut away and extended to form a toe-plate 23. Extensions 14 on the members carry spindles for wheels 16. Extension plates 24, 25 on the transverse members carry spindles 26. The spindles have sleeves to which angle brackets 28 secured to jaws 29 are attached. The members 28 have notches which engage ribs 32 secured to the plates 26. The ribs slope inwardly to cause the jaws 29 to swing inwardly. The jaws 29 have an inwardly directed horizontal flange 30. A Y-shaped lever 35 is mounted on spindles 33 in extensions 14. A handle 36 is connected to the lever which has mounted thereon part spherical rollers 39 which pass between lugs 38 on levers 37 connected to the sleeves 27 of spindles 26. Rotation of the handle 36 rearwardly draws the gears 29 together to grip a load and rearward movement of the handle 20 raises the load. A castor wheel 42 is pivotally mounted on each jaw to allow the jaws to lie along the ground or to provide a point of suspension for the load raised from the ground. In an alternative form the handle 36 is mounted on a cross shaft and the handle 20 and toe-plate on a sleeve on the shaft with the toe-plate under the load, movement of the handle 20 raises the load initially to allow insertion of the flanges 30 of the jaws beneath the load. The movement of the handle 20 is limited by an aperture in a plate joining the upper and lower angle members. The movement of the jaws may be effected through suitable gearing or they may have rectilinear movement by means of screws of opposite threads according to the Provisional Specification.
Patent GB-520995-A (GB)
Title: Improvements relating to undercarriages and pressure reservoirs of aircraft
IPC: B64C25/22
Filed: 1938-09-17
Abstract: 520,995. Aircraft landing-gear. DOWTY, G. H. Sept. 17, 1938, No. 27190. [Class 4] A rigid undercarriage leg for aircraft is made hollow to constitute a container for pressure fluid used for operating flaps, retraction gear, &c. The leg 1 has an internal pressure-tight wall 2, and is closed at the top by a plug 10; the enclosed space 11 forming a pressure container, which may also be used as a pressure accumulator by the use of an idle piston 12, above which liquid is received through passages in the plug 10, air being compressed beneath the piston. A landing- wheel 5 is carried by a lever 4 controlled by a shock-absorber 7. Specifications 460,316, 480,687 and 500,477 are referred to.
Patent GB-534861-A (GB)
Title: Improvements in advertising device
IPC: G09F11/02
Filed: 1939-10-04
Abstract: 534,861. Moving signs. MOORHOUSE, H. J. Oct. 4, 1939, No. 27205. [Class 3 (i)] An intermittently changing sign comprises a plurality of display panels 4 rotatably carried by a plurality of parallel endless chains 18, 18<SP>1</SP> so disposed that a composite picture &c. is built up by adjacent aligned panels at a viewing window in a casing. Fig. 1 shows a front view of such aligned panels 4, and Fig. 2 a plan thereof. The chains 18, 18' pass around end sprockets 19 driven through bevel gearing 58, 59 from two lay-shafts 43, 44 connected by a shaft 45 and actuated at predetermined intervals by a motor 50 controlled by a time-switch 51. The panels 4 are supported by wheels 32, 30 running on upper and lower tracks 33, 31 and are mounted on projecting chain links 17 so as to have a rotary motion relative thereto biassed by a spiral spring 26, and are locked in register by solenoid controlled catches 56. On a fresh set of panels being brought to the window the motor 50 automatically stops for, say, one minute. Solenoids 54 are then automatically energized by the switch 51, thus drawing down an armature 55 which releases the catch 56 and allows the spring 26 to rotate the panel 4 through a half-turn to bring its rear to the display position. After another interval of, say, one minute, the motor 50 is again energized to move the chains 18, 18' till the next panels reach the window, when the above. sequence is repeated. The springs 26 are again tensioned by the panels 4 striking against a roller abutment 68 fixed at the rear end of the path of travel of the panels. As the panels 4 move step by step around, the rollers 68 turn them back through 180 degrees against the action of the springs 26 and they are held in their tensioned positions by the catches 56. The panels 4 may carry articles or portions thereof, or intermittently illuminated lamps.
Patent GB-404099-A (GB)
Title: Improved rope roller frame
IPC: B66D1/00
Filed: 1932-10-01
Abstract: 404,099. Guide rollers. BARKER, R. E., Aysgarth, Warren Avenue, Knottingley, and PHILLIPS, G., Peckfield Lodge, South Milford, both in Yorkshire. Oct. 1, 1932, No. 27256. [Class 78 (v).] The ends of a roller frame are curved at f to prevent the rope rubbing on them if it does not drop truly on the roller. The end g is lifted and swung outwards when the roller is to be removed.
Patent GB-152597-A (GB)
Title: Improvements in apparatus for forming articles of glass
IPC: C03B9/195
Filed: 1920-09-24
Abstract: 152,597. Miller, W. J. Oct. 16, 1919, [Convention date]. Blowing; pressing; removing articles from moulds.-Relates to a double rotating table semiautomatic pneumatically operated bottle-blowing machine. The parison moulds H, Fig. 1, and the blowing moulds I are mounted on tables E, F respectively, which are rotated intermittingly and in unison by swinging arms G, G<1>, Figs. 1 and 3, connected by a rod 10. Power for this operation is supplied by the cylinder 18. The tables are locked by automatic bolts 29. The parison is pressed by a water-cooled plunger K, Fig. 7, the rod 96 of which is fitted with a pneumatic cushioning cylinder 100 provided with an adjustable release valve 122 by which the pressure of the plunger K may be varied. The usual spring cover-plate 131 is employed. The parison is raised at the transfer station by a cam or handoperated push-rod 50, Fig. 1, and is then seized by transfer jaws 204, lifted clear of the parison mould, swung round, and lowered into the blowing mould I. The transfer mechanism 204 is mounted on a slide 197 which is raised and lowered by a pneumatic cylinder R and swung round by a cylinder Q, Fig. 1. The blowing moulds I are operated by a fixed cam 89. A blowing head 172 of the usual kind is provided.
Patent GB-1089908-A (GB)
Title: Plasticized ethylene-acrylic acid copolymers
Inventor: WARTMAN LLOYD HENRY
IPC: C08L23/08
Filed: 1967-09-18
Abstract: A composition comprises an ethylene/acrylic acid copolymer and a plasticizer of the formula <FORM:1089908/C3/1> wherein R is hydrogen or methyl and each (d) is an independent integer having a value of from 0 to 10 with at least one (d) being greater than zero.
Patent GB-819257-A (GB)
Title: Electric lighting fittings
Inventor: SHAW ROBERT ARNOLD
IPC: F21S8/00
Filed: 1956-09-06
Abstract: 819,257. Tubular lamp lighting fittings. REVO ELECTRIC CO. Ltd. Nov. 4, 1957 [Sept. 6, 1956], No. 27292/56. Class 75(4) A lighting fitting adapted to accommodate one or more tubular e.g. fluorescent, lamps 7 comprises in combination a body part 4 adapted for mounting upon a ceiling, wall &c. and on which is mounted the control mechanism 5 for the lamp or lamps, a pair of arms 8 of channel section for each lamp extending from opposite sides of the body part, a lamp holder (not shown but located within a cap 9) at the outer end of each arm and a translucent cover 10 with or without holes 11 for the body part 4 through which extends each lamp supported in the lamp holders in close contact with the arms 8. The cover 10 is of trough-like form having a pair of open-ended slots 12 of key-hole shape in its ends for engagement with a lamp in the holders When more than one lamp is provided, the arms are arranged parallel with one another and a single cap 9 may cover all the lamp holders at one side. A spring clip 6 carried by the part 4 supports the middle portion of the tube 7. Instead of extending from the part 4 in the manner of a cantilever as shown, each arm may form part of a continuous channel section strip connected at its middle to part 4.
Patent GB-728309-A (GB)
Title: Improvements relating to sheet-separating apparatus
Inventor: NEWMAN ROBERT JOHN
IPC: B65H1/02
Filed: 1952-10-31
Abstract: 728,309. Feeding sheets. TRAPOW & CO., Ltd., D. Oct. 1, 1953 [Oct. 31, 1952], No. 27415/52. Class 100 (1). Pile tables.-A pile table for a stack 18 of labels comprises side bars 10, 11, front and rear bars 12, 13, a slotted bar 17 carried by the bar 13, and a base-plate 20 carried by a bracket 21 which is clamped to the bar 17 by a screw 22 which passes through the slot in the bar. The stack 18 rests on one edge on the plate 20 and is held against a removable back plate 24 which is retained in position by a top bracket 25. An endless rubber band 27 is placed around the back plate 24, stack 18, and one of several pins 26 on the bar 12. A second rubber band may be placed around the lower part of the stack and one of the pins 29 on the base-plate 20. The labels are separated from the stack 18 by being pulled out of the triangular space between the pins and the labels, and the gripping pressure of the band or bands 27 prevents more than one label being separated at a time. The labels are pressed against the back plate 24 by pulling out the triangular parts so as to stretch the band and then releasing it. The endless elastic band 27 may be replaced by two elastic strips engaging the opposite edges of some of the labels first, to be removed. The pile table may be used in the label feeding apparatus described in Specification 728,308.