baber/WOPTO huggingface dataset:
Patent GB-453372-A (GB)
Title: Improvements in weighing and separating apparatus
IPC: B07C5/24
Filed: 1935-05-18
Abstract: 453,372. Grading eggs &c. by weighing. LAVENDER, W. H., 9, Gresham Road, Brentwood, Essex. May 18, 1935, No. 14585. [Class 143] An apparatus for weighing and separating eggs or other articles comprises a number of weighbeams (preferably counterweighted) mounted on a travelling carrier each having a pan at one end for the reception of the egg &c., a number of magnets adjacent the path of the travelling weighbeams and a delivery table or the like for the reception of the eggs &c. discharged from the pans, the pan ends of the weighbeams being provided with a metal susceptible to attraction by the magnets. The weighbeams 2 are mounted on a turntable 1, and the eggs 10 are fed from a conveyer to the scale pans 5 in usual manner as each weighbeam passes the conveyer, the pans being supported by rollers during loading. The weighbeams are all equally counterbalanced and carry armatures 16. Magnets 14 of different strengths are arranged at the successive grading stations with the exception of the first station. After passing the supporting rollers, the heaviest eggs are discharged at the first station, and thereafter the weighbeams pass the magnets in succession and are attracted thereby and tilted to discharge the eggs according to their grades. The strengths of the magnets may be adjusted by means of movable keepers 15. Electromagnets may be used instead of permanent magnets.
Patent GB-116209-A (GB)
Title: Improvements in Feedwater Heaters.
Inventor: BLOXAM ARTHUR GEORGE
IPC: F22D1/10
Filed: 1917-10-09
Abstract: 116,209. Bloxam, A. G., (Wolf Akt.-Ges., R.). Oct. 9, 1917. Feed-water, heating.-In a feed-heater consisting of a row or two or more parallel rows of vertical pipes a having transverse ribs a<1>, crosspieces b, c on the ends of the pipes are bored and fitted together so as to form the upper and lower communication ducts or headers. The pipes are secured together by bolts passing through the cross-pieces. The ribs on consecutive pipes may be in relatively staggered arrangement, or they may be inclined in opposite directions.
Patent GB-238518-A (GB)
Title: Improved manufacture of abrasive paper or cloth
Filed: 1925-06-05
Abstract: 238,518. Carborundum Co., (Assignees of Manley, R, B.). Aug. 18, 1924, [Convention date]. Emery and sand-cloth and paper. - Abrasive paper or cloth consists of a flexible backing coated with grains of artificial aluminous abrading-material substantially uniformly distributed the grains being isolated and so spaced as to leave uncovered portions of the backing, whereby permanent lodgement of the material ground away is prevented. The uncovered space may be from 25 per cent to 75 per cent of the total surface.
Patent GB-1055935-A (GB)
Title: Direct smelting of ores and concentrates
IPC: C21C5/42
Filed: 1964-04-09
Abstract: 1,055,935. Producing metals and alloys. FARNSFIELD Ltd. April 9, 1964 [April 11, 1963; May 7, 1963; Aug.28, 1963; Nov.25, 1963; Feb.24, 1964], No.14818/64. Heading C7D. [Also in Division F4] A method for the production of metals or alloys (e.g. Cu, Ni, Pb, Fe, steel Sn and Zn) comprises feeding ores or concentrates into or on to a flowing stream of a molten material (ores or concentrates and/or the products of a previous operation) in a smelting zone, inducing turbulence and circulation in said zone, the molten product then flowing to a refining zone, the slag produced being caused to flow to a slag settling zone, the flow of slag and metal being countercurrent in at least part of the refining zone. The molten material is preferably agitated in the refining zone by a blast of oxygen containing gas and in the smelting zone by the tangential feeding of the ores and concentrates. The ores or concentrates, mixed with a carbonaceous reducing agent in the case of oxides, are preferably preheated prior to feeding into the melt stream.
Patent GB-373775-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C33/54
Filed: 1931-05-20
Abstract: 373,775. Roller bearings. POLLARD & CO. (BEARINGS), Ltd., F., Nottingham Road, and POLLARD, W., Grey Walls, Birstall, both in Leicester. May 20, 1931, No. 14865. [Class 12 (i).] In a roller bearing in which the rollers 6 are mounted on pins 4 secured to spaced-apart rings 2 the rivetedover heads 5 of the pins 4 are sunk into counterbored holes 3 in the rings 2. The bottoms of the counterbores may be conical, as shown, or flat.
Patent GB-436671-A (GB)
Title: Apparatus for cutting potatoes
IPC: B26D3/18
Filed: 1934-05-17
Abstract: 436,671. Chipping potatoes. SOC. INDUSTRIELLE DE FERBLANTERIE, 39, Boulevard Beaumarchais, Paris. May 17, 1934, No. 14910. Convention date, Oct. 6, 1933. [Class 5 (i)] A potato-chipping apparatus comprises a presser plate 28 supported by bars 25 pivoted to an operating lever 21 and to links 29, the lever 21 and links 29 being pivoted to supports 18, 31 in a frame 1 and being so arranged that during the operative movements of the plate 28, a line at right angles to the plate from a central part thereof remains substantially coincident with a line at right angles to the cutting grid 6 from a central part thereof, the parts supporting the presser plate forming an articulated quadrilateral structure, and the employment of sliders or guideways being avoided. The grid 6 is removably mounted and is of the usual type except that two of the usual knives, 10a, 11<a>, Fig. 3, are omitted, to avoid waste.
Patent GB-420047-A (GB)
Title: Improvements in and relating to screen grid electron tubes
IPC: F04D17/18
Filed: 1934-05-17
Abstract: 420,047. Thermionic valves. VEREINIGTE GLUHLAMPEN UND ELECTRICITATS AKT.-GES., Ujpest, near Budapest. May 17, 1934, No. 14913. Convention date, March 16. [Class 39 (i)] In a valve in which the anode, suppressor grid and screen grid are of the same length and longer than the control grid, a metal cap on the top of the screen grid surrounds the control grid at one end whilst a metal ring at the lower end attached to a separate support and to the cathode shields the control grid rods from the anode. The ring may be located between the anode and the suppressor grid, between suppressor and screen grids or between screen and control grids. In a modification, an additional grid KG is disposed between the control grid G and the screen grid SG and is closely wound at its lower end which surrounds the control grid leads and a non-active portion of the cathode. The upper part of the grid may be of variable pitch to give a variablemu effect. In another modification the lower end of the anode is closely surrounded by one or more rings of sheet metal or gauze. Two rings may be arranged one inside and one outside the lower end of the anode and may be closed at the bottom. Specifications 230,011 and 280,851, [both in Class 39 (i)], are referred to.
Patent GB-197835-A (GB)
Title: A machine for cleaning the internal lids or caps of fueleconomisers
Filed: 1922-05-27
Abstract: 197,835. Lever Bros., Ltd., and Edwards, J. R. May 27, 1922. Mandrels. - The internal caps or lids of fuel economizers are cleaned by emery cloth &c. held against a cap, which is mounted on a rotatable hollow shaft E having a forked extension E<1>. Within the shaft, a bolt J, having a T-head J<1>, is adjustable axially by a screwed hand-wheel N, and is rotated with the shaft E by a washer L having a square hole fitting a squared part L<1> of the bolt, and a rib S fitting a slot in the shaft. The lid or cap A is held by passing the T-head J<1> into the slot M in the cap, rotating the head through 90‹, and drawing the bolt axially by means of the wheel N. This action causes the forked ends E<1> of the shaft to enter the slot M, and also draws the cap up to a shoulder at the bottom of the forked end E<1>, whereby the cap is securely held and positively driven.
Patent GB-1095797-A (GB)
Title: Improvements in and relating to the production of dimers of unsaturated ketones
Inventor: KABAS GUGIELMO
IPC: C07C49/737
Filed: 1965-04-08
Abstract: Compounds of formula <FORM:1095797/C2/1> wherein R and R1 are H or C1- 6 alkyl (but at least 2 R radicals are H) are dimerized to diketones by treatment at 10-70 DEG  C. with solid KOH in an inert aprotic diluent (e.g. ether or benzene) which does not dissolve the KOH.  Isophorone reacts to give a diketone of formula <FORM:1095797/C2/2> as well as a hydroxyketone dimer as by-product. 3,5 - Dimethyl - 2 - cyclohexenone gives a mixture of two diketone dimers which are separated by chromatography; the conversion of 3-methyl-2-cyclohexenone to a diketone dimer is also described.
Patent GB-1342925-A (GB)
Title: Hydraulic power circuits employing remotely controlled directional control valves
IPC: F15B13/042
Filed: 1971-05-14
Abstract: 1342925 Hydraulic control circuits GENERAL SIGNAL CORP 14 May 1971 [14 May 1970] 14973/71 Heading F1P [Also in Division F2] A distributing valve 3 controlling the supply of fluid from a pump 6 via a line 8 to an hydraulic ram 1 is actuated by a remote pilot valve 15 which is provided with a sufficiently high control pressure by connecting it to the line 8 upstream of a throttle valve 29 via a combined throttle and relief valve 31. The pilot valve 15 has a spool 23 which in its neutral position shown connects both actuating means 11, 12 of its distributing valve 3 to drain 5 via ports 21, 22, notches 26, 27 in the spool 23 and chambers 18, 19, and, in this position, the spool 35 of throttle valve 29 is moved to the right to a low throttling position against spring 36 by pressure fluid entering chamber 38 via passage 41 and acting on the left end of the spool 35, to minimise neutral pressure losses. Movement of pilot valve spool 23 from the neutral position vents chamber 38 via line 42, ports 43 or 44 and chamber 18 or 19, the spool 35 moves to its high throttling position, and the increased pressure upstream of the valve 29 is fed via valve 31 to the pilot valve inlet 16 and via port 21 or 22 to actuating means 11 or 12. Back pressure in the line 8 is applied to a piston 45a via line 46, and before any ram movement is obtained is sufficient to move spool 35 to reduce energy losses in valve 29. Valve 31 comprises a throttling spool 51 movable against a spring 52 by the pressure of fluid admitted to chamber 47, and a relief valve 58 located within the spool 51 and openable when the fluid pressure exceeds a predetermined value. A second ram 2 is controlled independently of ram 1 by a distributing valve 4 and pilot valve 15a connected in tandem with valves 3 and 15.
Patent GB-149848-A (GB)
Abstract: 149,848. Laupitz, R. Sept. 11, 1919. Adding and subtracting apparatus; error-keys; multiplying and dividing by repetition; overthrow-preventing mechanism.-Relates to the differential and actuating mechanisms of a multiple-bank, key-set, independently-operated calculating-machine, and to means for enabling the machine to perform addition or subtraction and for preventing overthrow of the numeral wheels of the totalizing-counter. Each row of keys 1, Fig. 1, is provided with a locking-bar 4 adapted to hold the operated key in depressed position, and the key-stems are arranged to force down an inclined rail 6 to an extent depending on the value of the key. The rail 6 is pivoted to arms 7, 8 and is supported by a stud 9 on an elbow lever 10, to which is connected a rod 15 attached to a bar 16 carrying an item-displaying segment 17 at one end and a plate 19<A> at the other end. The plate 19<A> is guided on a rod 20<A>, Fig. 3, and has a stepped portion 19 which acts as a stop' member to limit the movement of a plate 22 guided vertically on the rod 20<A>, a pin 21 on the plate 22 being arrested by the particular step presented to it. The upper end of the plate 22 is pivoted to an arm 26 loosely mounted on a shaft 25 and a similar arm 27 is connected by a link 24 to the plate 22 so that an upward movement turns the arms 26, 27 in opposite directions. Another pair of arms 29, 30 are connected by links 37, 38 to the free end of a lever 39 actuated from the main shaft 41 bv means of an eccentric; these arms carry pawls 33, 34 which normally abut against the ends of the arms 26, 27 and are thereby prevented from engaging the teeth of a wheel 35 until the arms 26, 27 have been arrested by the means above described. The pawls 33, 34 are also under the control of a cam 36, Fig. 5, by means of which one or other of the pawls can be withheld from engagement until the end of the stroke, whereupon both pawls engage the toothed wheel and prevent overthrow. The cam 36 is mounted on a lever 43 pivoted at 42 and connected by means of a link 45 to the adding or subtracting lever 46. The wheels 35 are in mesh with the pinions of a totalizing-counter 48. The depressed keys are restored to their initial position by means of a special key 72, Fig. 6, or automatically by means of a lever 82 and eccentric 84 on the shaft 41. The lever 82 and the key 72 co-operate with a plate 74 pivoted at 73 which is adapted, when the lever 82 is actuated or the key 72 is depressed, to rock an arm 75 and thereby, through th'e pin 76, to withdraw the lugs on the locking-bar 4 from engagement with the notch in the key stem. Multiplication or division is effected by repeated addition and subtraction; in this instance the operator moves a lug 85 to hold the lever 82 out of effective position.
Patent GB-551565-A (GB)
Title: Improvements in or relating to electric wiring terminals
IPC: H01R9/16
Filed: 1941-11-24
Abstract: 551,565. Mounting terminals. CINCH MANUFACTURING CORPORATION. Nov. 24, 1941, No. 15108. Convention date, Dec. 6, 1940. [Class 38 (i)] A flat terminal 2 is secured to an insulating support 1 by pressing from the terminal body a pair of lugs 6 having their ends of V-shape so as to provide pointed projections 9 that can be upset after passing through the support. The lugs are formed entirely within the marginal edges of the body 4 leaving apertures 7. Rectangular holes 3 in the support 1 receive the lugs 6 and the projections 9 are then forced apart to bite into the ends of the holes 3 and flattened to engage the surface of the support. The terminal has an opening 5 for soldering a wire to it.
Patent GB-1409487-A (GB)
Title: Automatic map readers
IPC: G09B29/10
Filed: 1973-03-29
Abstract: 1409487 Indicating apparatus ELLIOTT BROS (LONDON) Ltd 15 March 1974 [29 March 1973] 15120/73 Heading G1J An automatic map reader for use in an aircraft comprises a displaying arrangement having a pair of line elements 15a, 15b which are rotatable about a common axis OZ, the elements being rotatably driven in such a manner that the point of intersection 19 of the lines indicates the position on a map 13 of the aircraft. Stepping motors or D.C. motors may be employed to drive the line elements 15a, 15b by way of gearing, the motors receiving inputs in accordance with navigation data fed automatically (e.g. by computer) to the control circuits of the motors. The line elements 15a, 15b may be provided on transparent discs which are rotatably mounted in one part of a housing which is hinged to another part of the housing, the parts being arranged, in use, to sandwich a map (or a part thereof) with which the reader is to be used. Manually operative buttons 67, 69, 71 are provided for setting purposes before the reader becomes automatically operative. The transparent discs may each be provided with a line in the shape of an archimedian spiral Fig. 5 (not shown), or one of the discs may be provided with such a line while the other is provided with a straight line, as shown.
Patent GB-292532-A (GB)
Title: Improvements relating to the solidification of nitrate of lime by rotary cooling drums
IPC: C01F11/44
Filed: 1928-05-23
Abstract: 292,532. Appareils et Evaporateurs Kestner. June 21, 1927, [Convention date]. Crystallizng.-In the crystallization of nitrate of lime by solidification of a layer of the primed solution picked up from a tank 4 by an internally cooled rotary drum 1, adherence of the crystals to the drum is minimized by interposing between the drum surface and the primed solution 7 a layer 6 of supersaturated solution. This may be effected by heating the surface of the solution in the tank 4, or the inside or outside surface of the drum as by hot air or gas burner 5, between the scraper 8 and the liquid, whereby crystals are melted and a layer of supersaturated solution is formed.
Patent GB-1198562-A (GB)
Title: Anamorphic Lens
IPC: G02B13/08
Filed: 1968-03-29
Abstract: 1,198,562. Anamorphotic systems. ISCO OPTISCHE WERKE G.m.b.H. March 29, 1968 [March 30, ,1967], No. 15178/68. Heading G2J. An anamorphotic lens system for use with a spherical surfaced objective, as shown in triplet with surfaces r 11 -r 16 , has a pair of elements L 1 , L 2  with spherical surfaces r 1 -r 4  and two cylindrical doublets L 3  L 4  and L 5  L 6  with cylindrical surfaces r 5 -r 10  wherein no refractive power # n/r varies in magnitude by more than 20 per cent, no axial thickness d by more than 20 per cent, no refractive index n by more than Œ0À02 and no AbbÚ number v by more than 5 from the data in the following table:- Optical data are provided for four spherical surfaced objectives and in two embodiments a spherical surfaced doublet with surfaces r a -r c  is provided in front of the lens system.
Patent GB-774451-A (GB)
Title: Improvements in or relating to endoscopes
IPC: G02B23/24
Filed: 1955-05-26
Abstract: 774,451. Surgical optical instruments. WOLF, R. May 26, 1955 [May 28, 1954, Oct. 13, 1954], No. 15211/55. Class 81(2) [Also in Group XX] To provide a wide angle of view the objective of the viewing system of an endoscope is in the form of a sphere, the axial ray of the viewing system passing through the centre of the sphere. Fig. 1 shows an endoscope comprising an illuminating system 5 carried in a tube 1 which also supports the objective 7 and a prism 4 directing light from the objective to the remainder of the viewing system, the slope of the sides of the prism being selectted in accordance with the line of sight desired. In a modification the lens 7 fills the whole of the end of the tube 1, the prism 4 being omitted. Fig. 4 shows a rearward-viewing endoscope in which light from the objective 7 is reflected by a mirror 10 to the prism 4 of the remainder of the viewing system.
Patent GB-110608-A (GB)
Title: Improvements in or relating to Apparatus for Transporting Coal and other Material.
Inventor: BELL GEORGE GILBERT
IPC: B65G53/30
Filed: 1916-10-26
Abstract: 110,608. Bell, G. G. Oct. 26, 1916. Transmitting pulverulent material by pumping or forcing in a liquid medium.-Coal or other material in small lumps is delivered from the mouth B of a weighing-machine on to a revolving table C from which it is scraped by adjustable plates D at a predetermined uniform rate and falls into a tank A containing water or other liquid. The water and coal are drawn from the tank A through either of the pipes G, G<1> by a pump F and forced through the pipe J to the tank K which is provided with perforated vertical pipes L into which the water percolates. These pipes are connected to a return pipe J' through which the water is forced back to the tank A by a pump M. The discharge from the pipe J<1> is regulated by a valve J<4>, the amount of opening of which is controlled by the float J<5>. An auxiliary pump 0 is provided to prevent any reduction of the rate of flow in the pipe J, and may be brought into operation automatically. The pipe J may deliver through a distributing mouthpiece J<2>, Fig. 2, on to a jigging screen Q which delivers the coal into a shoot R and the water on to a board S. A second jigging screen Q<1> is used to separate the remaining fine coal from the water which has passed through the first.
Patent GB-1381653-A (GB)
Title: Engine system
IPC: B64C29/00
Filed: 1972-04-04
Abstract: 1381653 Gas turbine jet propulsion plant O KAWAMURA 4 April 1972 15302/72 Headings F1G.F1J and F1T A jet propulsion engine comprises a rotor carrying fan blades 30 with integral tip-turbine blades 28, each of the latter being divided by a notch into a portion 40 receiving driving gases from a nozzle assembly 16 and a portion 42 which acts to prevent vibration of the blade assembly 32. Shroud segments 44 to 47 extend from the faces of each blade assembly and co-operate with adjacent shroud segments to form rings 48, 50 defining the boundaries of the turbine and fan flow passages. Nozzle assembly 16 is disposed at the outlet of a combustion chamber 10 having a flame tube 12 and extends over only a portion of the rotor circumference so that the turbine blades 28 are cooled by air when not in alignment with the nozzle assembly. The latter may include guide vanes 22 which are cooled by fuel passing through passages 24 on its way to combustion chamber 10. Air cooling fins may be provided on the nozzle casing 54. Combustion chamber 10 may be supplied with exhaust gas, bleed air or a mixture of the two from a main gas turbine engine (78), Figs. 13 to 15 (not shown), via a control valve (80), the fan acting as a lift fan. The main engine may have two rearwardly directed auxiliary propulsion nozzles 66, Fig. 12, each of which normally receives compressor by-pass air during forward flight but which can be closed by an axially movable bullet 70 when lift fan operation is required. Such closure is accompanied by opening of a sleeve valve 74 carried by the bullet, thus permitting by-pass air to flow via duct 68 to combustion chamber 10. In a modification Fig. 16 (not shown), the lift fan (18) may drive via gearing (84) a small compressor (86) providing combustion air. Starting is effected by a motor (89). In a further modification Fig. 17 (not shown), the fan (18) is used in a forward propulsion engine, some of the air which passes through the fan and downstream compressor stages being directed through a reverse flow duct feeding the combustion chamber (94) for the tip-turbine, whilst the remaining air is directed to a combustion chamber (92) feeding a variable area propulsion nozzle (95).
Patent GB-734237-A (GB)
Title: Improvements in or relating to photographic and cinematographic apparatus
IPC: G03B42/02
Filed: 1953-06-04
Abstract: 734,237. Photographic cameras. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 4, 1953 [June 7, 1952], No. 15421/53. Class 98 (1). In a camera for photographing flat objects, a mirror 3 is mounted on the camera 4 to move therewith while maintaining the distance between the mirror and the image formed in the camera constant and without affecting the direction of the axis of the reflected beam. As shown, an X-ray screen 2 is mounted at one end of a housing 1. The camera 4. and mirror 3 are mounted together and may move along a light-tight slide in the housing wall, or may be inserted into one of a number of openings in the wall. The light from the screen may be reflected through 90 degrees, as shown, or through a greater angle.