baber/WOPTO huggingface dataset:
Patent GB-1445754-A (GB)
Title: Method of adsorbing heavy metal ions
IPC: C02F1/70
Filed: 1973-11-16
Abstract: 1445754 Carbon-containing absorbent for heavy metals ELEPON KAKOKI CO Ltd 16 Nov 1973 [20 Nov 1972] 53437/73 Headings C1A and C1C Heavy metal ions are adsorbed from industrial wastes by contact with a carbon-containing with carbonizable organic material in the proportion of 0À25 : 1 to 2À0 : 1 by weight; baking the mixture at 160-600‹ C., washing the resulting carbonized product with water and drying. The mixture may be baked with or without shaping to form granules or powder respectively. Examples of the organic materials given include natural and synthetic polymers, cellulose and carbohydrates. Heavy metal ions removable by adsorption include Cr, Cu, Pb, Hg, Zn and Cd.
Patent GB-1371159-A (GB)
Title: Antiskid control system
IPC: B60T17/22
Filed: 1972-11-20
Abstract: 1371159 Aritiskid braking systems AISIN SEIKI KK 20 Nov 1972 [18 Nov 1971 27 Dec 1971] 53609/72 Heading F2F  An anti-skid braking system comprises an hydraulic pressure source in the form of a tandem master cylinder 10, a power source in the form of an accumulator 84 and pump 128, a reservoir 107, wheel cylinders 18, 19, 35, 36 connected to the master cylinder via a passage arrangement, means 133 for detecting wheel lock and producing a signal to operate a solenoid valve 96, and hydraulic pressure control means including a first servo in communication with the power source, the said communication being interrupted by the valve 96 when the wheels are locked, a valve 40, 41 usually held in open position by a piston 77 operatively connected to the servo and interrupting communication between master cylinder and wheel cylinders 35, 36 when the wheels are locked and a variable volume chamber formed by a piston 57 within the housing. In operation when skidding is imminent piston 57 and a piston 90 are displaced by a braking hydraulic pressure to interrupt communication between passages 60, 66 and connect the body 67 of a valve to the wheel cylinders, releasing braking pressure since the movement of piston 57 has increased the volume available to the fluid, the communication between master cylinder and wheel cylinders having been interrupted. If hydraulic pressure is not stored in the accumulator due to a circuit failure, in the absence of pressure to chamber 80 piston 77 is moved'by springs 51, 87 to separate valve parts 40, 41 and allow conventional braking. In a modification the movement of the pistons due to malfunction operates a warning lamp.
Patent GB-1115089-A (GB)
Title: Rotary piston internal combustion engine
IPC: F01C19/10
Filed: 1965-12-17
Abstract: 1,115,089. Rotary-piston internal-combustion engines. BETEILIGUNGS-UND PATENTVERWALTUNGS, G.m.b.H. Dec.17, 1965 [Dec. 19, 1964], No.53690/65. Heading F1F. In a rotary-piston I. C. engine of the trochoidal n and n + 1 lobe type, an oil-scraper ring 2 is lodged in each end wall 1 of the casing and is pressed against the adjacent end-face 5 of the piston 6 by an annular corrugated spring 7, the ring being supported by a resilient packing-ring 3. A plurality of axially-orientated holes 11 in the ring aforesaid prevent accumulation of oil stripped from the face 5 by an edge 8 between an annular sealing-surface 4 and a conical surface 10, the diameter d1 of the said edge being equal to dt . cos 180/n + db, where db is the diameter of each of the holes 11, n is the number of said holes and dt is the diameter of a pitch circle upon whose circumference the axes of said holes are disposed. A further conical surface 9 is provided adjacent the radially-outermost edge of the surface 4.
Patent GB-541372-A (GB)
Abstract: 541,372. Two-stroke cycle engines. SHAW, J. A. May 23, 1940, No. 9116. [Class 7 (ii)] Combustible mixture or air at a pressure above that of the atmosphere is supplied by a piston controlled port 6 or other valve to the annular pump-space 2 the volume of which exceeds that swept by the working piston. Part of the air or mixture passes from the space 2 directly by the transfer passage 7 through the mechanically-actuated valve 8 and scavenges the working cylinder. The remainder is forced on the instroke of the combined pistons through the still open valve 8. A piston pump separate from the working piston may be employed ; it may be operated from a separate crank and disposed at an angle to the combustion cylinder, so that the pump piston may reach its top deadcentre before the power piston.
Patent GB-1155931-A (GB)
Title: Improvements in or relating to an individual fire-arm
IPC: F41A19/53
Filed: 1966-12-05
Abstract: 1,155,931. Firearms; projectile containers. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 5 Dec., 1966 [15 Dec., 1965], No. 54260/66. Headings F3A and F3C. A portable firearm comprises a projectile P having a propelling charge which accompanies the projectile on the firing thereof in a launching tube A supported by a support B, a grip for holding the firearm, a periscopic sight C and a firing device (D, Figs. 3 and 6, not shown). The tube A is of the recoilless type and is pivoted on the support B and held perpendicularly thereto by a foldable stay 7, 8 which comprises two U-shaped members 7, 8 and which cooperates with an abutment 13 in the tube A. The lower end of the stay 7, 8 slides in two slots 10 in the support, the upper end of the slots being inclined to the axis of the support B to hold the lower end in its tube holding position. The periscopic sight C is constituted by an eye-piece 17 in a mount 15 frictionally held on a hollow shoulder 16, a plane mirror 18, a preferably convex mirror 19 carried by the member 7 and a transparent, pivotally mounted flap 20. The grip comprises two pairs of hinged flaps 4, 6 which in their closed position, as shown, form the grip but when opened outwardly form a cradle for the tube A when in its folded away position (Fig. 8, not shown). The firing mechanism includes a lever or trigger 24 pivoted on one of the flaps 4, which trigger is connected by a cable to a cam. Rotation of the cam depresses through a co-operating member an arm against a spring such that on release of the arm by the cam, the arm is urged upwardly to strike a percussion element which in turn fires the projectile P housed in the tube A. The tube may be very light and be composed of sheet metal, light alloy, plastics material, cardboard or fibre glass. In the folded position of the firearm the tube A may be used as a container for the mount 15 as well as for a projectile.
Patent GB-1166637-A (GB)
Title: An Acrobatic Toy
IPC: A63H13/12
Filed: 1966-12-07
Abstract: 1,166,637. Acrobatic toy. KOHNER BROS. Inc. 7 Dec., 1966 [29 April, 1966], No. 54729/66. Heading A6S. An acrobatic toy 10 comprises a pair of upstanding laterally aligned lever members 26, each pivoted about an axis between its ends (at the edges of slots 22 and 22') such that the upper ends of the levers are displaced away from each other when the lower ends 28 are displaced toward each other, and two reaches of string or the like 40, preferably as a loop of string, between the upper ends of the lever member, the ends of the reaches being maintained in spaced relationship both adjacent the lever members and adjacent the supports 46, the string being threaded through diametrically opposed holes 50 in 46, such that when the lever members are displaced away from each other the string is pulled from the position shown in Fig. 4 to the taut parallel arrangement shown in Fig. 5; the figure 60 rotatably mounted about an axis between the lower ends of two support arms 44 so that the portions of the body on each side of the axis almost balance, which arms are formed integrally with discs 46, is thus caused to move from a pendant position (solid lines, Fig. 2) to an elevated position {dotted lines, Fig. 2),and the figure further rotates about the axis at the lower end of the arms. The small difference in balance of the figure may be caused by incorporating a 1-20 gm. weight. A base 12 may be provided, which incorporates means for turning levers 26 about their pivots 22 and 22', i.e. buttons 30, on members 26, which extend through holes 24. The loop of string may be accommodated :in a slot at the upper ends of 26, and may be held in place by a U-clip. The discs 46 forming part of supports 44 may be joined by: a crosspiece 52 over which the string passes.
Patent GB-1309580-A (GB)
Title: Coating of steel sheets
IPC: C23F11/00
Filed: 1970-11-18
Abstract: 1309580 Sintered metal coatings NIPPON KOKAN K K 18 Nov 1970 [21 Nov 1969] 54767/70 Heading C7D Steel sheets are coated with a metal powder slurry containing one or more corrosion inhibiting compounds yielding molybdate, chromate or benzoate ions in a total concentration of 10<SP>-2</SP> to 10<SP>-5</SP> g ions/l of water; coating being followed by drying, rolling and heat treatment. As exemplified, steel sheet was coated with Al slurry and rolled to give 5-7% elongation and a coating weight of 75-80g/m<SP>2</SP> after drying. The slurry may contain Na NO 2 , Na 2 , MoO 4  or a mixture of C 6  H 5  COONa and Na 2  MoO 4 . The  following heat treatments were employed; (i) an oxidising atmosphere at 600‹C for 2 min (ii) an oxidising atmosphere at 650‹C. for 30 sec., rolling, post-aging treatment, heating at 400‹C. in electric furnace and rolling for temper regulation, and (iii) induction heating to raise the surface temperature to 500‹C. after 2 mins.
Patent GB-1461642-A (GB)
Title: Subsurface shutoff valve
IPC: E21B34/00
Filed: 1974-04-18
Abstract: 1461642 Wells &c BAKER OIL TOOLS INC 18 April 1974 [15 June 1973] 54834/74 Divided out of 1461641 Heading E1F The subject-matter of the Specification is substantially the same as that disclosed in Specification 1461641, but the claims are directed to a subsurface shut-off valve having a rotary ball valve member and are not limited to valve members having a bypass valve.
Patent GB-1246109-A (GB)
Title: A method of manufacturing mesh grid electrodes for electric discharge vessels
IPC: B23K35/00
Filed: 1968-11-20
Abstract: 1,246,109. Soldering. SIEMENS A.G. 20 Nov., 1968 [21 Nov., 1967], No. 54969/68. Heading B3R. [Also in Division H1] In making a mesh grid electrode for an electric discharge device two sets of parallel wires of tungsten, molybdenum or other metal of like high melting point are arranged one above the other so that the wires of the respective sets are at an angle, the wires are soldered together at the intersection points by heating from 830- 1250 C. to form a liquid phase from contiguous coatings over the wires, the liquid phase being a eutectic of one or more further metals with boron. The further metals are preferably nickel, cobalt, palladium or platinum. One set of wires may be covered with elementary boron deposited from the gas phase using an inert carrier gas and a liquid compound of boron and hydrogen, the other set with a pure metal and the assembly heated in a inert or reducing atmosphere to above the eutectic temperature. Alternatively both sets of wires may be provided with a coating containing one of the pure metals together with sufficient boron, by chemical reduction and in another alternative one set may have a coating containing one of the pure metals together with sufficient boron and the other set may have a pure metal coating the same as or different from that in the other coating. Nickel- 3-10% boron coatings may be produced in nickel plating baths, the nickel being deposited by means of boranates or borazanes. In examples Ni-B or Co-B by chemical reduction is provided on both sets of wires; B from the gas phase on one set and Ni, Co, Pt or Pd on the other set and Pt on one set and Ni-B or Co-B on the other. A prior art process in which tungsten or molybdenum wires coated with titanium are joined to wires coated with another metal e.g. Cu or Ni is described.
Patent GB-1177762-A (GB)
Title: Star Feeder
Inventor: KIDD ARCHIBALD WATSON
IPC: A01C7/08
Filed: 1966-12-12
Abstract: 1,177,762. Granular or similar material distributers. A. W. KIDD. 13 Feb., 1968 [12 Dec., 1966], No. 55441/66. Heading A1D. A star wheel feeder comprises a wheel 100 provided with pockets 102 and teeth 104 mounted on a horizontal rotatable axis and housed in a chamber 106 such that on the upgoing side 110 the wheel and housing form an air seal whereas on the downgoing side 108 the wheel clears the side of the housing. The lower section of the housing below the air seal is in communication with an air pipe 16 and the intake of seed or fertilizer from a hopper is controlled by horizontal slide 114.
Patent GB-1488276-A (GB)
Title: Calender roll machinery more particularly paper calender roll machinery
IPC: D21G1/00
Filed: 1974-12-24
Abstract: 1488276 Paper calenders KLEINEWEFERS INDUSTRIE-COMPANIE GmbH 24 Dec 1974 [5 March 1974] 55687/74 Heading D2A A paper calender having at least a pair of rolls 1, 14 driven by frictional engagement with a web W passing between them, the rolls being separable by means (not shown), is provided with a ring 10 at at least one end on one of the rolls 1 which ring is elastically yieldable in a radial direction and, when the rolls are separated, projects beyond the circumference of the roll 1, the other roll 14 having a peripheral surface portion 15 coaxial with and of the same diameter as the main portion of the roll 14 and which faces and is engageable with the peripheral surface of the ring 10. The amount by which the ring 10 projects can be adjusted by screwing in or out a frusto-conical nut 6. The ring 10, which may be inflatable, can have a peripheral surface with a high coefficient of friction. The arrangement ensures that when the rolls 1, 14 are reengaged after separation, the rotary speed of the rolls is built up before full nip pressure is resumed thereby ensuring that the web W is not torn.
Patent GB-1224930-A (GB)
Title: Silver recovery system
Inventor: ENGELMAN EDMUND
IPC: C25C7/06
Filed: 1968-11-26
Abstract: 1,224,930. Controlling electrolytic deposition photo-electrically. E. ENGLEMAN. Nov. 26, 1968 [Jan. 3, 1968], No.56028/68. Heading G1A. [Also in Division G3] The current through an electrolytic cell in which silver is deposited on a cathode is automatically controlled by a motor-driven adjustable transformer in response to a photo-cell influenced by the brightness of the deposited silver to keep the brightness constant. In one arrangement, a sealed unit containing a lamp and photo-cell is clipped to the edge of an electrolytic cell in which silver is being deposited on a stainless steel cathode. Light from the lamp in reflected from the cathode on to the cell 4, Fig.2, so that, when the silver darkens to a predetermined extent as the concentration of the electrolyte decreases, a transistor-operated relay 6 closes to cause a servomotor 3 to adjust a transformer 1 and thereby reduce the voltage applied to the electrolytic cell (not shown) from terminals 7. A constant greyness of silver dependentonthe setting of a potentiometer 5 is thus maintained to prevent sulphiding, regulation being interrupted periodically by a time switch 9 to allow time for any adjustment to become effective. When the transformer reaches its minimum setting, a switch 10 operates to terminate deposition. Clutch 2 facilitates initial setting up and a tamper-proof amp-hour meter may be incorporated as a security check on the amount of silver extracted. Modifications involving relay-operated reversible servomotors, self-balancing circuits and bridge circuits with the photo-cells to compensate for the effect of changes in light transmission through the electrolyte, are described.
Patent GB-1374988-A (GB)
Title: Crack detection means
IPC: F01D21/00
Filed: 1971-12-02
Abstract: 1374988 Detecting cracks in components MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 2 Dec 1971 [16 Dec 1970] 56080/71 Addition to 1239349 Heading G1S A system for detecting the formation of cracks in a component, e.g. a shaft, axle, pressure vessel or steel-concrete structural member, comprises a resistance wire embedded in the component and an electric circuit connected to the wire so as to detect the change in resistance when the wire breaks upon formation of a crack. When applied to a pressure vessel 10 the system comprises several resistance wires 11 extending circumferentially in the vessel shell and connected to an indicating unit 12. In a modification the resistance wires may be disposed in randomly oriented directions and connected to the indicating unit in such manner as to accurately indicate the position of any crack. The following abridgment is included in this series since the Specification was through an error, not allotted to this group. Reference to it will be found in the name index to this volume.
Patent GB-1535178-A (GB)
Title: Window unit
IPC: E05D5/12
Filed: 1975-12-23
Abstract: 1535178 Pivoting window with rising hinge; rising hinges C SUTTON 23 Dec 1975 [31 Dec 1974] 56087/74 Headings E1J and E2F An inwardly-opening pivoting window assembly comprises a wing frame (14) including an outwardly opening light M; the sill C is rebated to form a rib 12, the bottom rail K of the wing frame, in the closed position of the window is in contact with the upper surface of the sill C and the outer surface of the rib 12; to open the window the wing is raised vertically by the rising hinges H until the bottom rail is above the rib so that the wing can be pivoted inwardly. The head rail A of the main frame and the fascia board E, are complementary to the top rail F of the wing frame. Spring-loaded balls R 1 , H 6  are provided as bearings for the vertical movement. A mortice security bolt S 1  is provided. In the lower hinge assembly H 1  H 3  the spindle H 4  engages the screw-threaded bore of the boss 26 of the lower plate H 3  and has a ratchet operated by the handle T to raise and lower the upper plate H 1  relative to the lower plate H 3 . The upper hinge assembly H 1  H 2  (Fig. 6 not shown) allows axial movement.
Patent GB-1245824-A (GB)
Title: Improvements in or relating to optical deflection systems
IPC: G02B5/30
Filed: 1968-11-27
Abstract: 1,245,824. Polarizing apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov.27, 1968 [Nov. 30, 1967], No. 56278/68. Heading G2J. An optical deflection system relating to digital deflection in one or two dimensions includes an alternate series of single birefringent prisms 4, 5, 6, and polarizers 1, 1<SP>1</SP> 1<SP>11</SP> in which the refracting angle of the prism 6 having the greatest refracting angle 4γ points in a direction opposite to that in which the other prisms point. In the embodiment shown the polarizing switches 1, 1<SP>1</SP>, 1<SP>11</SP> may be Kerr cells or quarter wave plates and the axis of symmetry sym of the totality of all possible directions of emergence corresponds to the axis Sy of the system and the position of the axis of symmetry relative to the system is independent of its temperature. An isotropic prism 3 may be inserted which reduces the very small angular deviation and whose refracting angle γ and temperature coefficient of the refractive index is substantially equal to those of prism 4. In embodiments where all the prisms have the same orientation of optic axis, the optic axis of the inverted prism 6 is rotated through 90 degrees relative to the other prisms. In a further embodiment the final prism is made compound consisting of two prisms one of which is inverted.
Patent GB-1443245-A (GB)
Title: Control equipment for an electronic power converter
IPC: H02M7/162
Filed: 1973-12-06
Abstract: 1443245 Controlling converters ALLMANNA SVENSKA ELEKTRISKA AB 6 Dec 1973 [11 Dec 1972] 56619/73 Heading H2F In control equipment for a polyphase bridge converter, a control pulse generator 11 feeds separate switches B1, B2 respectively for the positive and negative groups of controlled rectifiers 1 ... 6 and controlled by bistable circuits F7, F8. Circuits F7, F8 have first inputs for a blocking signal, symbolised by a switch 14, which signal is also arranged to turn on the controlled rectifiers of one phase so as to provide a by-pass for the bridge. Circuits F7, F8 have second inputs influenced by the output of the control pulse generator 11 for the rectifier acting as a by-pass, following cessation of the blocking signal from 14. The equipment is applicable to HVDC power transmission and includes two further groups of bistable flip-flops F1 ...F6 (only one of each group shown) arranged to be set into an inhibiting state by the blocking signal 14 and re-set by the combination of lack of blocking signal 14 and the next pulse from 11 for one of the rectifiers acting as a by-pass. The blocking signal 14 may result from a shortcircuit, earth fault, over-voltage on D.C. or A.C. lines or from an internal fault in the converter. Figs. 2 and 3 (not shown) relate to wave forms and to a complete block diagram which indicate how the by-pass pair are selected from a controlled rectifier already conducting and the corresponding rectifier of the same phase. Alternatively, a fault recorder may be included to prevent the inclusion of a weak rectifier in a by-pass path.
Patent GB-1408946-A (GB)
Title: Hot plates
IPC: H05B3/68
Filed: 1972-12-08
Abstract: 1408946 Heated vessels K FISCHER 8 Dec 1972 [10 Dec 1971] 56707/72 Heading A4A [Also in Division G3]  In an automatic temperature control arrangement for a cooking vessel 16 (Fig. 1) heatable on a hot-plate 11, a sensor unit 23 on the lid transmits a radio signal to a receiver 36.when subjected to the heat of condensing steam. The receiver in turn operates a switching device 13 to switch off the hot-plate 11. The sensor unit 23 comprises a bellows 28 (Fig.2) formed by two diaphragms the volume between which is filled with a fluid (e.g. alcohol) which has a lower boiling point than water. The bellows acts on a switch 30, 31 to energize (or de-energize) the radio transmitter 32 from a rechargeable battery 33, whereby to maintain the vessel contents at boiling point. To recharge the battery, the sensor unit 23 is removed from the lid and placed in a unit 34 containing a transformer primary which inductively couples with a secondary winding in the unit 23. The secondary output is rectified by a rectifier 35 for charging. The switching point of the switch 30, 31 may be 80C. For further protection a thermal switch 12 is also provided in series with the hot-plate heater and in contact with the hot-plate. Where a number of hot-plates are controlled a corresponding number of control units, each using a radio frequency different from the others, are used in association with a number of receivers.