baber/WOPTO huggingface dataset:
Patent GB-440501-A (GB)
Title: Improvements in devices for discharging scum applicable in connection with swimming baths
IPC: E04H4/12
Filed: 1934-08-03
Abstract: 440,501. Removing scum from liquids; swimming-baths. COCKRELL, J. H., Corporation Baths, Millgate, and TYLDESLEY, F., 65, Bradshaw Street, Whelley, both in Wigan, Lancashire. Aug. 3, 1934, No. 22610. [Classes 26 and 46] A slotted or apertured trough or tube a for discharging scum from the surface of liquids, for use, for example, in swimming baths, has its ends con. nected by pipes c, Fig. 1, and swivel joints d to a fixed outlet pipe e, so that its height can be adjusted. In the modification shown in Fig. 2, the trough a is connected to sleeves f which slide on fixed uprights g having apertures h at different levels. In a further modification, the paths f slide within fixed tubes. In swimming-baths the trough a may serve as a hand-rail.
Patent GB-782871-A (GB)
Title: Improvements in heat responsive electric switch devices
IPC: H01H37/30
Filed: 1955-08-05
Abstract: 782,871. Thermal switches; switches held set and freed mechanically. GENERAL ELECTRIC CO. Aug. 5, 1955 [Aug. 6, 1954], No. 22643/55. Class 38 (5). A thermal switch comprises a pivotably adjustable arm 60 carrying an insulated contact 78 and an insulated spring blade 68 which carries a co-operating contact 70 and a plate of insulating material 72. On rise of temperature a bimetal strip 34 engages the plate 72, thereby deflecting the blade 68 and opening the contacts. The operating temperature may be adjusted by pivoting the arm 60 about the pivot 64 by means of a pin 56 in a slide 40 which moves along a slot 38 in the casing, the pin engaging an inclined slot 58 in the arm. The switch may be opened manually by moving the slide to the far left, whereupon the blade engages a stop 32 as the arm pivots anti-clockwise. The slide is moved by the engagement of two legs 48 with a member 52 which may be a lever or a rectilinearly moving member. The switch casing 10 is mounted by means of legs 22 biased outwardly to engage slots 16 in a base 12 and is held up by springs 24 about each leg.
Patent GB-1008216-A (GB)
Title: Improvements in or relating to balustrading
IPC: E04F11/18
Filed: 1963-06-06
Abstract: 1,008,216. Balustrades. R. H. JULIAN. June 6, 1963 [June 8, 1962], No. 22656/63. Heading E1B. A section of balustrade, to be supported between spaced posts on a horizontal or inclined support surface, comprises top and bottom rails 2, 3 each with a longitudinal recess, and a plurality of balusters each having at each end a pivot 7 engaging in a recess, and spacers 10 between the pivots, the angle between the balusters and the rails being adjustable to the inclination of the support surface. As exemplified, the rails are of aluminium and the balusters are straight (as shown), or of ornamental, e.g. diamond, form. Posts supporting sections of balustrade pass through the bottom rails 3 into slots in the top rails and are secured by appropriate angle brackets.
Patent GB-780230-A (GB)
Title: Improvements relating to the formation of chemical coatings on metal surfaces
IPC: B21C37/00
Filed: 1955-08-05
Abstract: An adherent coating is formed on a surface of titanium or zirconium or an alloy containing a predominant amount of titanium or zirconium by treating the surface with an aqueous solution of manganese dihydrogen phosphate containing free fluoride ions and an addition agent consisting of one or more of: a nitrate, nitrite, chlorate, saccharin and sucrose.  The weight and adhesion of the coatings are improved by the presence of ammonium ions, either with or without sodium or potassium ions or both, or a mixture of sodium and potassium ions.  Preferably, when coating titanium the solution also contains a soluble titanium salt, e.g. titanyl sulphate or potassium fluotitanate, and when coating zirconium a soluble zirconium salt. The fluoride ions may be derived from any fluoride or bifluoride, such as the alkali metal and ammonium fluorides and bifluorides. Specific examples of the addition agent are sodium nitrate, ammonium nitrate, sodium chlorate and sodium nitrate.  An example of a concentrated stock solution contains Mn(H2PO4)2.  2H2O, HNO3, NaNO3 NaHF2, K2TiF6 and H2O and before use, manganese carbonate may be added to reduce the acidity thereof.  The metal may be subjected to a nitric acid-hydrofluoric acid activation pretreatment.  When used as a base for paint, the coating is preferably rinsed with chromic acid and when the metal is to be cold-worked, e.g. drawn, a conventional drawing lubricant, e.g. a stearate soap, is preferably applied.
Patent GB-275806-A (GB)
Title: Improvements in or relating to stokers in locomotives
IPC: F23K3/04
Filed: 1926-09-14
Abstract: 275,806. Imray, 0. Y., (Standard Stoker Co., Inc.). Sept. 14, 1926. Screw conveyers.-Fuel is fed from the tender of a locomotive to the firebox by a screw conveyer of special construction the conduit of which terminates at its delivery end above the level of the fire-grate where the fuel is distributed by downwardly directed fluid jets. As shown in Fig. 1, the delivery end of the screw conveyer 18 is provided with one or more extra threads 35 which serve to promote uniform delivery of fuel through the upwardly directed conduit 20 surrounded by but independent of a grating 22. As the fuel leaves the mouth of the conduit 20 it is met by jets of steam from a distributor 23 which is so arranged as not to impede the passage of the fuel through the conduit. Valve-controlled steam pipes supply steam to separate compartments of the distributor the delivery orifices of which may be circular or oval. The forward section of the conveyer is coupled to intermediate and rear sections by universal joints 37, Figs. 1 and 6. The rear section 46 is located beneath the tender and delivers the fuel through an opening 55 above which is located a crusher 54. The rear part 46<2> of the conveyer 46 carries threads of smaller pitch than the threads of the front part 46<1> of the conveyer. The threads of the rear part of the conveyer are cut away to leave projections 60, 60<1>, Fig. 7, to form portions of screw threads of larger pitch.
Patent GB-392521-A (GB)
Title: Improvements in or relating to portable containers
IPC: B67D1/04
Filed: 1931-08-13
Abstract: 392,521. Siphon bottles and the like. DIETRICH, J., Murten, Switzerland. Aug. 13, 1931, No. 22900. Convention date, Aug. 13, 1930. Void [Published under Sect. 91 of the Acts]. [Class 14 (i).] A head 3 containing a tap 32 screws into an annulus 28 at the top of a container 1. A tapped cap 31 carrying a spout 17 screws on to a threaded projection 30 on the head 3. Gas such as carbon dioxide may be introduced into the space above a liquid in the container by connecting a pipe to the boss 30. After the charging the tap 32 is closed and the cap 31 replaced. A container having a heating and cooling jacket 10 is shown in Fig. 2. Heating may be effected by means of steam admitted to the chamber 10 through a check valve (not shown) or 'by means of an electric or other heater placed in a chamber formed by a wall 27. Cooling is effected by packing the chamber with ice through a door in the wall 9 which is covered with heat insulating material 11. A drain valve 22 is provided. The cover 3, in which the riser pipe 16 is mounted, is held in place by a yoke 6 and screw spindle 7.
Patent GB-880844-A (GB)
Title: Improvements in or relating to shock-absorbing bearings for movable elements of small mechanisms
IPC: F16C27/08
Filed: 1959-07-03
Abstract: 880,844. Bearings. PARECHOC S.A. July 3, 1959 [July 10, 1958], No. 22944/59. Class 12 (1). A shock-absorbing bearing comprises. a pivot bearing 5 mounted in a bearing body 6 which is disposed with clearance in a housing 1, the latter having an annular centring seat 8 against which a frusto-conical surface 9 of the body 6 is pressed by a spring 7. The upper part of the body 6 comprises a frusto-conical stud. which engages a recess 10 in a cap 2 of the housing 1, In a modification, shown in Fig. 2, a chamfered edge 16 of a bearing body 12 co-operates with a frusto-conical seat 16 on a housing plug 14. The upper end of the bearing body 12 engages a stud 18a secured in the end of a housing 15. In another modification, the upper end 23, Fig. 3, of the bearing body is suspended on an annular spring 21.
Patent GB-425743-A (GB)
Title: Installation for the manufacture of artificial filaments
IPC: D01D5/04
Filed: 1933-11-15
Abstract: <PICT:0425743/IV/1> A device for cleaning the nozzle 6 of an artificial silk spinning apparatus comprises an arm 40 which moves horizontally across the face of the nozzle.  The filter 7 and nozzle may be pivoted about an axis 34.  By means of cables and pulleys or other suitable arrangement, both the cleaning of the nozzle and the swinging aside of the filter and nozzle may be carried out by an operative situated at a lower level near the twisting device.
Patent GB-648501-A (GB)
Title: Improvements in or relating to power plants
IPC: F02K1/08
Filed: 1948-09-01
Abstract: 648,501. Jet propulsion nozzles. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 1, 1948, No. 23007. Convention date, Sept. 3, 1947. [Class 110(iii)] In a gas turbine plant the flow area of the jet nozzle is controlled by a core movable in response to the resultant pressure obtained from the pressure of the fluid in the nozzle reacting on the core and an opposing variable pressure obtained from an air compressor of the plant. The nozzle comprises a tapered section 23 of an outer casing 11 and a movable core 25 is slidably mounted on the end section 26 of an inner casing 12. The core is actuated by a bellows diaphragm 42 the interior of which is connected by a pipe 45 to a point on the compressor. The core 25 is vented through the passage 39 and rearwardly directed hood 41. Stops 36 co-operate with a flange 31 on the core to limit the amount of outward travel.
Patent GB-997664-A (GB)
Title: Improvements in or relating to thermal exchange
Inventor: FOLL JEAN LE
IPC: F28F1/36
Filed: 1961-06-26
Abstract: 997,664. Heat exchanger tubes. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 26, 1961 [July 6, 1960], No. 23064/61. Heading F4S. [Also in Division G6] A heat exchanger tube 1 has transverse fins 2 of substantially square cross-section and baffle members 5 are provided at the mid-point of each side of each fin to deflect a cooling fluid flowing longitudinally of the tube into the channels defined between the fins 2. The cooling fluid flows out of the said channels at the corners of the fins and thus a greater heat transfer area of the fin is presented to the fluid leaving the channels than to the fluid entering the channels. The baffles 5 are supported by longitudinal ribs 4. Specifications 955,425 and 997,665 are referred to.
Patent GB-1475701-A (GB)
Title: Controlling the speed of linear traversal of an elongate tape
IPC: G11B15/67
Filed: 1974-05-23
Abstract: 1475701 Controlling tape speed AMPEX CORP 23 May 1974 [21 June 1973] 23109/74 Heading G3N A method of controlling the linear speed of a tape winding on or off a reel, in which a step pulse is given to the motor driving the reel, the resulting reel acceleration is measured and a signal, which, if the actual inertia of the system equals a particular value, equals the step signal is applied to the motors to increase its angular velocity to compensate for reduced effective tape diameter. Tachogenerator 11 feeds differential amplifier 12 cumulatively charging capacitor 18 causing a voltage output from differential amplifier 19. A step voltage is applied to servomotor 10 and simultaneously a 'threading' command signal at terminal 7 activating one shot pulse generator 30, which generates a pulse for time T, during which field effect transistor 17 is rendered conductive, joining amplifier 12 to capacitor 18, and switch 21 is made to connect terminals 22 and 24. Simultaneously another command signal at terminal 6 causes connection of terminals 36 abd 34. Voltage - VR is selected so that the speed of servomotor 10 gives the maximum safe linear tape speed at maximum tape pack diameter. T, is chosen to end before the steady state velocity is reached again. At time T, the output of generator 30 returns to zero and terminals 23 and 24 connect and if the voltage output of amplifier 19 representing the response to the step voltage to the servomotor exceeds VR it is applied via terminal 25 to the servomotor loop to increase the voltage of servomotor 10 inversely as the tape pack diameter. At the end of threading time servomotor 10 is de-energized and braked, and the cut-off of the command to terminal 7 eliminates the negative holding voltage from inverse amplifier 31 and thus field effect transistor 32 conducts the charge on capacitor 18 to earth. For an unthreading command at terminal 7 the process is similar but terminals 36 and 35 are connected instead and servomotor 10 rotates in the opposite sense.
Patent GB-874856-A (GB)
Title: Improvements in or relating to face masks for use in the administration of oxygen orother gases
Inventor: CROASDAILE FREDERICK GEORGE
IPC: A62B18/00
Filed: 1959-07-06
Abstract: 874,856. Respiratory appliances. OXYGENAIRE (LONDON) Ltd. May 31, 1960 [July 6, 1959; Aug. 18, 1959], Nos. 23164/59 and 28242/59. Class 81 (2). A face mask comprises a bag of flexible substantially gas-proof sheet material, such as polyvinyl chloride, has an aperture in one wall and a flexible capsule within the bag and adjacent the aperture which has an inlet for connection to a gas supply and an outlet to the interior of the bag, the inlet being larger than the outlet so that when gas is supplied to the mask the capsule is inflated and closes the aperture. As shown, Fig. 2, a capsule 17 is formed in a pocket 14 in a bag 10 by a diaphragm 16 sealed to one wall 13 of the pocket and gas supplied thereto through an inlet 18 enters the bag through an inlet 19 smaller than the inlet 18. When gas is supplied to the inlet 18 the capsule 17 is inflated and closes apertures (not shown) in the opposite wall 13 and in a stiffening disc 25. Exhaled gases pass to atmosphere through apertures (not shown) in the surface of the bag uppermost in use. The mask is sealed to the user's face by means of mouldable metal, such as soft aluminium (not shown) inserted in the tubular edge of the bag or by means of spongy material 23, Fig. 4, shaped to fit on either side of the nose. In another embodiment, Fig. 12, the capsule is formed by an extension 33, 34 of one side of the tubular edge 36 which is sealed to the wall of the bag and has an aperture 41 communicating with the interior of the bag. When gas is admitted to the capsule 37 through an inlet similar to the inlet 18, the edge 36 is inflated and seals the mask to the face and the inflated capsule closes apertures 44.
Patent GB-626267-A (GB)
Title: Air circulating fans
IPC: F04D29/34
Filed: 1947-08-21
Abstract: 626,267. Securing fans on shafts. GUTKIN, L. A. Aug. 21, 1947, No. 23182. [Class 80 (ii)] [Also in Group XXVI] A fan comprises blades 2 secured to a hub in the form of a spring clip with finger pieces 4. It is intended to be clipped on to any suitable running shaft. The meeting faces of the clip are angular so as to enclose a square and have friction linings 8.
Patent GB-457404-A (GB)
Title: Improvements relating to ball, roller, and like bearings
IPC: F16C19/10
Filed: 1935-08-17
Abstract: 457,404. Ball - and - roller bearings. DOWTY, G. H., Arle Court, Cheltenham. Aug. 17, 1935, No. 23190. [Class 12 (i)] The parts of a ball or roller bearing are assembled by the radial resilient distortion of the whole or part of one of the races which is circumferentially interrupted, the distorted element after assembly returning to an initial position so as to hold the assembly together by interengagement with the other race or . cage. As shown, a race ring 2 has attachment lugs 5 and a pair of ball tracks. Balls 8 are spaced by a cage 7 having end flanges 6. The inner race ring 10 is split at 10A and is sprung into the recess formed by the end flanges 6 to hold the assembly together. In the case of a thrust bearing one of the race members 15, Fig. 3, has spring fingers 16 which engage the other race member 12. The construction of Fig. 1 may be applied to a bearing with conical races. Specification 2607/06, [Class 12], is referred to.
Patent GB-997091-A (GB)
Title: Machine for harvesting root crops
Filed: 1960-07-02
Abstract: 997,091. Root-crop harvester. S. GUREL. Oct. 2, 1961 [July 2, 1960], No. 23208/60. Heading A1F. [Also in Division B8] A root-crop harvester particularly for potatoes comprises a share 10 on either side of which is located a disc 12 having sharpened edges to remove haulms from the sides of the drill. An elevator 13 feeds the lifted potatoes together with stones, haulms &c. to an endless conveyer 14 comprising slats formed by a series of rods 18 and fingers 19, the haulms being supported above the rods 18 and discharged from the harvester at the rear end of the flight 24. On reaching the flight 24 the slats 16 pivot downwardly to discharge the potatoes and stones on to a shoot 30 below which are located rows of resilient fingers 32, 36 (not shown) and 35. Potatoes falling from the shoot are deflected by the fingers 32, 35, 36 on to rollers 38, 39 having inflated surfaces, which feed the potatoes to a conveyer 44 where they are guided on to an elevator 46 feeding an endless conveyer 43 which conveys the potatoes to a trailer. Stones falling from the shoot 30 depress and pass between the fingers 32, 35, 36 and fall on to a conveyer 40 feeding on to an elevator 42 which lifts the stones to the conveyer 43 where they are guided by means extending across the conveyer to a shoot for discharge from the harvester.
Patent GB-1385856-A (GB)
Title: Incinerators
IPC: F23G5/20
Filed: 1973-05-16
Abstract: 1385856 Incinerator SOGEBRE 16 May 1973 [26 May 1972 26 Feb 1973] 23282/73 Heading F4B A refuse incinerator comprises a truncated, conical drum 1 oscillating about an axis slightly inclined to the horizontal between a fixed charging compartment 20 and a fixed ash compartment 3, the drum having an internal casing at least partly polygonal in section forming a number of independent air passages 13 delivering air to the combustion chamber, and a distributor to permit passage of air only into the lower portion of the combustion chamber. The curved part of a semi-hexagonal combustion chamber forms an arch 9 to reflect heat from the refuse, and nozzles 15 introduce air into the refuse. A distributor 52, Fig. 6, allows air to pass only through these holes 51 in the casing 8 of the drum which are at the lowest part. A hit   and miss damper 53, 57 controls the amount of air supplied. The drum oscillates only sufficiently to allow the flat sections to be lowermost in turn. In a modification for burning waste liquids, the curved portion of the combustion chamber is lowermost, Fig. 9, and the air is fed only through nozzles 15 directly substantially horizontally. The nozzles 15 which are not in use are retracted, and amount of air supplied is regulated by turning the nozzles 15 so that the inlet hole 15c faces into or away from the flow of air in the passage 13. The combustion air is heated by passing down a sleeve surrounding a flue stack at the charging end, and is delivered through a casing 36, Fig. 3, housing a labyrinth seal between the fixed charging compartment and the drum. A burner 31 is mounted in the end wall of the ash box which has a labyrinth seal 34 between it and the drum.
Patent GB-1062802-A (GB)
Title: Improvements in or relating to semi-conductor rectifiers
IPC: H01L29/747
Filed: 1965-06-01
Abstract: 1,062,802. Semi-conductor devices. BROWN BOVERI & CO. Ltd. June 1, 1965 [June 2, 1964], No. 23331/65. Heading H1K. A semi-conductor rectifier has between its main electrodes four or more layers of alternating conductivity type. One of the layers has no electrode, is of larger diameter than the two adjacent layers, and has a substantially symmetrical edge contour. This provides a long deep distance between the two PN junctions adjacent the layer. A three electrode NPNP silicon rectifier is made by diffusing P-type regions into an N-type wafer which is then masked and etched to the shape of Fig. 1 (not shown). The masking may be carried out using known masking materials or by a special tool used to hold the wafer. After shaping, the device may be tested to discover the junction characteristics and to check symmetry of operation. The remaining N-type layer may then be formed by alloying or by further diffusion. After the provision of the three contacts, the shaped region may be given a light cleaning etch during which the rest of the rectifier may or may not be masked. In making a four electrode NPNPN device the P-type regions are made by diffusion into an N-type wafer. After shaping the central layer, the remaining N-type regions are provided by alloying or diffusion. Corresponding PNPN and PNPNP devices may be made. Additional (turn-off) electrodes may be provided on the devices.
Patent GB-1525778-A (GB)
Title: Direction-finding device having a two-channel watson-watt receiver
IPC: G01S3/14
Filed: 1976-06-07
Abstract: 1525778 Radio direction-finders LICENTIA PATENT VERWALTUNGS GmbH 7 June 1976 [7 June 1975] 23463/76 Heading H4D A direction finder with a conventional twochannel Watson-Watt receiver 12 and indicator tube 14 includes a switching device 11 for selectively connecting a small-base Adcock 1 to 4 and a large-base Adcock 5 to 8 to the receiver to obtain coarse direction-finding α 0  from the smallbase antenna and then a correction value #α from the large-base antenna. The two antenna arrangements are concentric, Fig. 1. Switching device 11 first supplies the direction-finding voltages of Adcock 1 to 4 to the receiver 12 so that the coarse direction-finding α 0 , is shown on indicator tube 14 via a fast time constant circuit 13. Then, for a short period during which the writing beam of tube 14 is disconnected via a scanning line 15, the directionfinding voltages from Adcock 5 to 8 are supplied to receiver 12, digitalized via A/D converter 16, and passed to an arithmetic unit 17. The unit 17 also receives frequency information from the receiver via line 20. The correction value #α is passed via output 18 of unit 17 to a follow up device 18<SP>1</SP> by which the azimuth scale on indicator tube 14 is rotated so that the corrected bearing angle α = α 0  + #α is indicated. At the same time the corrected bearing angle α is outputted at output 19 of unit 17.
Patent GB-281046-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B9/00
Filed: 1926-09-23
Abstract: 281,046. Kanis, A. W. Sept. 23, 1926. Handles or holders with recessed-back retaining- devices for brushes.- Relates to brushes of the kind in which the bristles or tufts are mounted in a rubber or like flexible support which in conjunction with the stock or back of the brush forms a pneumatic cushion. The flexible bristle-support B is provided at or adjacent to its edge with a rubber or similar heading or rib B' and is retained in a recess A<1> in the brush-back A by means of a retaining-ring D which engages the rib B' and also fits into a relatively shallow groove formed in or around the edge of the recess. The metal or other ring D is preferably formed endless and is adapted to be pressed into its groove in the back A and to be held therein by friction. The groove is slightly undercut so that the ring D can expand slightly when pressed home. The rib B<1> may be of substantially semicircular crosssection and may be formed integral with the support B or secured thereto. An air vent may be formed by punching one or more eyelets into the support B. The back A may be formed of wood, precious or other metal, tortoise-shell, ivory, &c., or of a casein composition. A canvas or other backing E is provided on the back of the support B. The ring D may be dispensed with and the recess A<1> shaped so that it retains the rib B<1> when fitted within it. The invention is particularly applicable to hair-brushes.