baber/WOPTO huggingface dataset:
Patent GB-1206972-A (GB)
Title: Improvements relating to catalysts
Inventor: HARE NORMAN
IPC: C01B3/40
Filed: 1967-01-19
Abstract: 1,206,972. Activating nickel catalysts. NORTH WESTERN GAS BOARD. 9 Jan., 1968 [19 Jan., 1967], No. 2898/67. Heading B1E. Activation of a nickel catalyst is achieved by subjecting nickel oxide or a precursor therefor to a hot reducing gaseous stream so as to form a suspension of finely divided molten, or nearly molten, metal in the gaseous stream, and passing the stream over or through a used catalyst so that the metal impinges upon and adheres to the catalyst surface. Alternatively the metal may be introduced as a suspension in a liquid medium, said medium being vaporized or decomposed so that the nickel is suspended in the gaseous stream. Examples show the deposition of Ni onto a MgO support by using a carbon-rich reducing flame as the gas stream and adding nickel oxide to it. Additionally the catalyst may contain Al 2 O 3 , SiO 2 , Li 2 O, K 2 O, U 3 O 8  or another alkaline earth oxide.
Patent GB-906108-A (GB)
Title: Improvements in and relating to weather excluders for hinged doors and windows
IPC: E06B7/26
Filed: 1960-01-27
Abstract: 906,108. Weather excluders. DUNN, D. A. Jan. 23, 1961 [Jan. 27, 1960], No. 2901/60. Class 20 (3). [Also in Group XXV] A weather excluder or threshold bar for hinged doors or windows comprises a metal strip having: a flat sole-plate 1 for attachment to the threshold or sill 15 ; an upstanding flange 2 to act as a stop for the door 4 &c. when closed, and a curved part 3 extending towards the flange 2 and drain holes 7 for water collecting in the trough thus formed. A baffleplate 8 prevents direct admission of wind to the holes 7. Metal plates 16 are attached to the door &c. jambs and in the ease of a concrete sill, have inwardly projecting flanges 19, Fig. 6, to locate the strip in the cement surface of the sill. The strip may also have a downwardly extending flange 14 for inclusion in the concrete sill 15, the strip being secured by nuts and bolts 17 as shown. In the case of a wooden sill, the flanges 19 are dispensed with. The door may be rabbeted where it contacts the flange 2 or it may be provided with a resilient rubber &c. strip 25. The free edge of the curved part 3 may touch the sole-plate and be notched intermittently along its length, or alternatively tubular spaced supports for the turned-back part 3 may be provided. According to the Provisional Specification, the remaining edges of the door or window may have weather excluders comprising resilient material mounted on metal angle or comprising flat copper or bronze strip.
Patent GB-675745-A (GB)
Title: Improvements relating to photographic camera shutters with built-in contact devices for flashlight circuits
IPC: G03B9/70
Filed: 1951-02-06
Abstract: 675,745. Photographic shutters combined with flashlamps. DECKEL, H., and DECKEL, F. W. Feb. 6, 1951 [May 22, 1950, No. 2908/51. Class 98 (i). In a shutter adapted for mounting adjacent the camera lens having a built-in switch for a flashlamp circuit, a cable connecting the switch to the rest of the circuit passes through the rear wall of the shutter casing and is clamped against movement by means accessible from outside the casing. As shown, a cable 28 passes through a hole in the rear wall of the shutter casing 10 into a bush 14 forming part of an insulating plate 16 screwed to a plate 20 in the shutter and sandwiching a conducting washer 38 provided with a spring blade contact 36. The bared end of the cable is clamped by an insulating pin 30 engaged by a grub screw 32 against a conducting strip 22 moulded into the plate 16 and formed with a contact lug 34 against which the spring blade contact 36 is pressed to effect synchronization of shutter and flashlamp by a device, not shown, upon operation of the shutter trigger.
Patent GB-337298-A (GB)
IPC: B61B7/02
Filed: 1930-01-28
Abstract: 337,298. D³nkelberg, K., and Steinweg, W. Feb. 12, 1929, [Convention date]. Rope railways.-The motor c driving the cable b of a branch railway, wherein stops at each end disengage the drive, has a supply pipe m passing to the end of the section and then back to the motor, with stop devices n, o at each end actuated by a truck. The return of the truck is started by hand until the truck engages stop n and starts the drive. The cable passes around a tensioning-pulley h or is wound several times round its drum to allow extension of the branch. A signal p receives current from an overhead conductor r or from a battery and is switched on by an incoming truck to indicate the branch requiring attention.
Patent GB-130902-A (GB)
Title: Improvements in Knife Attachments for Table Forks.
Inventor: CHANDLER FRANK
IPC: A47G21/02
Filed: 1919-02-06
Abstract: 130,902. Chandler, F. Feb. 6, 1919. Table knives and forks.-A knife 2 with a curved cutting-edge is pivoted to a fork and is controlled by a spring 4 arranged to act like the spring of an ordinary pocket knife. The knife is held in its operative position by a sliding sleeve 3 engaging a notch 2<2> in the shank of the knife. The sliding sleeve 3 is also arranged to hold the knife after it has been turned to lie against the prongs of the fork. The knife may be turned so as to lie against the shank of the fork.
Patent GB-1302212-A (GB)
IPC: G01N1/00
Filed: 1970-01-21
Abstract: 1302212 Sample cell AGA AB 21 Jan 1970 [5 Feb 1969] 2954/70 Heading G2J [Also in Division F1] A liquid sample cell in which the liquid flow is unidirectional comprises a lift pump arrangement wherein a cylinder 3 has a movable piston 7, 8 comprising a'tube 10 provided with a valve assembly 11, 12, 13, such that when the volume of a lower portion of the cylinder is decreasing by piston movement, the valve assembly opens the tube 10 and when the said volume is increasing the tube is closed by the valve assembly. A transparent wall portion 4 provides a transmitted light path for radiation from a source 5 to a photocell 6 whereby the optical properties of liquid in the cell may be measured. The valve member 11 is fixed to the tube and valve seats 12, 13 are movable relatively thereto by sleeve 16 which extends through the top of the cylinder and encloses outlet 15. The sleeve co-operates with an actuating member 19 and a spring 20 to facilitate operation of the pump arrangement. To offset volume changes on entry of sleeve 16 into cylinder 3, which may cause discharge of liquid through inlet 1, the sleeve carries a further piston 29 which when pressed into cylinder 25 increases the volume of the upper cylinder portion. Cylinder 25 contains compressible sponge medium 26. The lower cylinder wall is cleaned on piston movement by a ring seal 21 which forces the lower piston sides against the wall. Radial passages 28 and a circumferential notch 29 for liquid entering through pin 1 also aid cleaning.
Patent GB-702601-A (GB)
Title: A new or improved amusement apparatus of the roundabout type
IPC: A63G1/24
Filed: 1951-02-07
Abstract: 702,601. Roundabouts. MONTE, R. E. Feb. 6, 1952 [Feb. 7, 1951], No. 2972/51. Class 132(1) A roundabout comprises passenger carriers 24 pivoted to the lower ends of pendent levers 20 fulcrummed to rotary means so that during rotation the carriers 24 swing out and means, controlled by the operator, for moving the carriers further out than 'they are swung by the centrifugal force. A tubular central support 13 rests on a base 12 and passes through a hole in a plate 14 which is suported from base 12 by inclined suports 15. A pinion 16, turnably mounted on support 13, is driven through gear 34, shaft 35 bevel pinions 361, 362 and reduction gear 37 by electric motor 38. Arms 19 are pivoted at one end 'to member 18 fixed to pinion 16 and at their other ends to tie rods 21 and levers 20. Levers 20 carry, at opposite ends, passenger cars 24 and pulleys 25. The rods 31 are secured at their inner ends to a ring 22 turnably mounted on support 13. Cables 26 are each led, as shown, round pulleys 25, 27, mounted respectively on arms 19. 20, and one of drums 281, 282 which are turnable independently on sleeves fixed to support 13 and have expanding brakes controlled by levers 331, 332 respectively. On starting motor 38, the arms 19 swing round, levers 20 swing out and on applying one of the brakes the corresponding cable winds round the drum and the passenger car is pulled further upwards and outwards.
Patent GB-1108513-A (GB)
Title: Improvements relating to delayed opening electromagnetic switches
IPC: H01H50/88
Filed: 1965-01-22
Abstract: 1,108,513. Electromagnetic contactors. WARMEX Ltd., and A. GOLDSTEIN. 21 Dec., 1965 [2 Aug., 1965], No. 32993/65. Heading H1N. In a plunger armature relay the plunger carries a suction cup which in the armature attracted position engages a second suction cup provided with a small air inlet so that on deenergization the resetting movement is delayed for a predetermined time.
Patent GB-469813-A (GB)
Title: Improvements in and relating to thermionic amplifier circuits
IPC: H04N5/16
Filed: 1936-01-31
Abstract: 469,813. Valve amplifying circuits. BRITISH THOMSON - HOUSTON CO., Ltd., and MOIR, J. Jan. 31, 1936, No. 3010. [Classes 40 (iii) and 40 (v)] In an amplifier following a detector in which it is re - quired to pass frequencies including substantially zero frequency as in television, frequencies of the lower values are applied to the grid of the amplifier from an impedance in the detector cathode circuit which may be shunted by a condenser or other filter to remove the higher frequencies. The Figure shows a detector V1 with a high resistance 3 shunted by a condenser 4 in the cathode lead with the amplifier grid leak 6 connected to the detector cathode. High frequencies in the anode circuit of the detector are applied to the grid of V2 by the coupling condenser 5. The bias of the amplifier as shown, is derived from a resistance 7 in the cathode lead but is preferably obtained from a potentiometer in the main high tension circuit. The direct current voltage change in the detector circuit may be applied to a separate grid in the amplifier from the grid to which the modulation voltages are applied.
Patent GB-1533324-A (GB)
Title: Device for measuring various parameters of a knitting machine
IPC: D04B35/10
Filed: 1976-01-27
Abstract: 1533324 Measuring instrument for knitting machines RHONE-POULENC-TEXTILE 27 Jan 1976 [28 Jan 1975] 03090/76 Heading D1C A portable measuring instrument, for use with a knitting machine, comprises a yarn length measuring component 10, an optical needle detector 11, a tine base element 12 and' a selector switch 13 for connecting either the yarn length measurer and the needle detector to one another or either to the tine base element 12, the results of the measurements being fed to the numerical recording device 15. The yarn measuring idler pulley has a polished face with diametrically opposed black' marks which, when 'the' pulley reflects light on to a photo diode during rotation causes pulses. The needle detector may be a skoboscope or a fibre optics arrangement and the tine base element is a quartz-controlled frequency meter. In position 1 of switch 14 the length of yarn per e.g. 100 stitches is indicated. In position 2, the speed of yarn take off is indicated. In position 3 the machine speed is indicated.
Patent GB-448567-A (GB)
Title: Improvements in or relating to hanging shelves
IPC: A47F5/08
Filed: 1935-01-31
Abstract: 448,567. Shelves. HERBERT, A. F., and HERBERT & SONS, Ltd., 6, West Smithfield, London. Jan. 31, 1935, No. 3153. [Class 52 (i)] A hanging shelf 3 is provided on its underside with a hanging rail 5 positioned near its front edge, the point of attachment of the suspending means 2 being offset towards the same edge to preserve the balance while maintaining the shelf substantially horizontal.
Patent GB-1037285-A (GB)
Title: Improvements in and relating to signal receivers
IPC: H03G3/20
Filed: 1963-01-25
Abstract: 1,037,285. Transistor pulse circuits. FELTER & GUILLEAUME FERNMELDEANLAGEN G.m.b.H. Jan. 25, 1963 [Jan. 25, 1962], No. 3166/63. Heading H3T. [Also in Division G4] A binary code recognition circuit comprises a two-state regenerative trigger circuit having as an input stage a number of transistors connected in parallel, the trigger circuit changing its state only when a desired combination of signal is applied to the control electrodes of the transistors. The circuits shown are a Schmitt triggers in which the collector emitter path of the input transistor is paralleled by four other transistors of the same or complementary types and so biased to a combination of conducting and non-conducting states that only when a desired 5-unit code signal is applied to the bases of the 5 input transistors is the output transistor of the trigger rendered conducting. The input signals may be derived by rectifying an A.C. signal and the second transistor (TR6) may operate a relay. In Fig. 2 (not shown) a single Zener diode is connected in series with all the input stage transistors.
Patent GB-829162-A (GB)
Title: Ball bearing
Inventor: GLENNY ARTHUR PHILIP
IPC: F16C33/37
Filed: 1958-01-31
Abstract: 829,162. Ball-bearings. SPERRY GYROSCOPE CO. Ltd. Jan. 31, 1958, No. 3316/58. Class 12 (1). In a ball-bearing, a thin spacer 4 is disposed between the balls 3 of each adjacent pair, each spacer being located by the adjacent balls only, or by the adjacent balls and one or both of the races 1, 2 only. Preferably each spacer 4 is cylindrical and formed with a spherical cup at each end. The specific gravity of the spacers is less than that of the balls. Preferably the spacers are P.T.F.E. mouldings. In a modification, the spacers have flat ends.
Patent GB-567608-A (GB)
Title: Improvements in compression ignition engines
IPC: F02B19/08
Filed: 1944-02-24
Abstract: 567,608. Oil engines. ROBSON, J. M., and TURNER MANUFACTURING CO., Ltd. Feb. 24, 1944, No. 3472. [Class 7 (iii)] Means, such as a tapered groove g extending across the piston head, imparts to the entering air charge a rotary motion about an axis transverse to the cylinder axis and directs the charge into an offset combustion chamber h<2> formed mainly in the cylinder head, but, as shown, having a segmental portion h<1> in the cylinder block, the rotary motion being maintained until maximum compression is reached. The groove g tapers in width and depth, and may be widest adjacent the segment h<1> or be narrowest there to provide a lip past which the charge is forced into the combustion chamber. Fuel is injected into the chamber at i at right angles to the moving air stream.
Patent GB-469954-A (GB)
Title: Improvements in aluminium alloys and the production thereof
IPC: C22C21/02
Filed: 1936-02-05
Abstract: Aluminium alloys for pistons and other articles contain 10-15 per cent of silicon, 0,5-5 per cent of copper, 0,2-3 per cent of cobalt, 0,1-2,5 per cent of magnesium, and 0,2-2 per cent of iron, with or without up to 0,5 per cent of one or more of the metals cerium, molybdenum, titanium, and chromium, and are subjected to a two-stage heat-treatment which may comprise heating for 4 hours at 530 DEG  C., quenching in water, heating for 16 hours at 165 DEG  C., and again quenching.  The alloys may be made by adding aluminium to a silicon-rich aluminium-silicon alloy, followed by copper, iron, and cobalt in the form of aluminium alloys containing respectively 50 per cent of copper, 10 per cent of iron, and 10 per cent of cobalt.
Patent GB-658861-A (GB)
Title: Improvements in carrier boxes for tomatoes, potatoes and such like market garden produce
Inventor: GREEN EDWARD
IPC: B65D5/46
Filed: 1949-02-09
Abstract: 658,861. Boxes for vegetables. BRADSTREET & SONS, Ltd., E. J. Feb. 9, 1949, No. 3559. [Class 18] A cardboard box comprises a wall-forming frame 1 of preferably two cardboard sheets joined by staples 3 and creased for folding flat at the corners 4 ... 7. Cross strips 11, creased at 13 are secured to the frame 1 by staples 12 and a partition extending beyond the frame to form a handle 18 is stapled mid-way between the ends by flaps 15 hinged by creases 17 to said partition. Two panels 19 are stapled to the bottom of the partition by hinged flaps 21 and lie over the strips 11 to form the box bottom, and carry hinged flaps 23 which lie inside upturned marginal portions at the bottoms of the end portion of the frame. The box may be collapsed by swinging the panel up against the partition whereupon the frame is folded flat with the panels, partition and straps lying flat inside. The hinges may be formed by a known method of reinforced creasing. A lid may be provided and the partition may be cut away to accommodate longer articles, e.g. rhubarb.
Patent GB-510681-A (GB)
Title: Improvements in and relating to centrifugally spraying matter suspended in fluids
IPC: B24C5/06
Filed: 1938-02-04
Abstract: 510,681. Sand-blast. SOC. ANON. ETABLISSEMENTS A. SISSON-LEHMANN. Feb. 4, 1938, No. 3567. Convention date, Feb. 4, 1937. [Class 60] [Also in Group II] Abrasive or other materials are mixed with a current of air moving at a high speed and passed without shock through a centrifugal impeller which projects it through an outlet in the surrounding casing. The abrasive material passes from the container 1 through an adjustable feed device 3 and tube 4 to the casing 5 in which the air current is blowing; the material rebounds from the strip 6 and disperses in the current. It is then conducted to the nozzle 7 from which it passes to the impeller, which consists of two discs with blades 11 of hard metal secured to members 10 welded or bolted to the discs. The casing 18 carries the bearing for the driving shaft and has a discharge outlet 19 for the passage of the spray. The blades 11 are curved to receive the material from the nozzle 7 without shock, and the nozzle is adjustable; it can be wedged in any fixed position, or it can be oscillated by means of a connecting rod 25. The current of air in the casing 5 may be produced by a fan driven from the impeller shaft, or by an auxiliary motor.
Patent GB-265967-A (GB)
Title: Improvements in electric switching apparatus for power driven vehicles
IPC: B60R16/00
Filed: 1927-02-08
Abstract: 265,967. Scintilla Akt.-Ges. Feb. 15, 1926, [Convention date]. Switches, latching and unlatching.- Multi - positioi switches for moto. vehicle lighting cir cuits are fitted witl a device for limiting at will the range of movement of the switch arm to a predetermined number of the possible switching positions and the device may be incorporated in the switch levers. As shown in Figs. 1 and 2 the switch lever a carries a sliding pin b which may be moved by the knob c between two positions determined by a spring-pressed ball e engaging corresponding recesses d in the pin. In the position shown in Fig. 1 if an attempt is made to move the lever beyond position 1 the pin b engages a shoulder f and prevents further movement until the pin b is withdrawn. Similarly the movement of the lever may be confined to positions 2 and 3. In a modification shown in Fig. 3 the pin has three possible positions, the lowest of which ensures that in switching over from the head lamp position 3 to the side lamp position 2 the lever is not carried to the position 1 corresponding to town lighting for a standing vehicle.
Patent GB-1246032-A (GB)
Title: Production of sols by electrolysis
Inventor: TRIPP TERENCE GORDON
IPC: C01B33/145
Filed: 1969-01-22
Abstract: 1,246,032. Electrolytic production of silica sols. MONSANTO CHEMICALS Ltd. Jan.2, 1970 [Jan.22, 1969], No.3641/69. Addition to 1,136, 016 Heading C7B. A silica sol is produced electrolytically using an anode comprising silicon, e.g. a ferro silicon, and an electrolyte comprising a monohydric alcohol having 1-3 carbon atoms in the molecule, a metal salt and water in an amount of up to 10% based on the weight of the alcohol. The metal salt used may be cupric sulphate, nickel sulphate, magnesium sulphate, zinc sulphate, ferric sulphate or zinc chloride. The electrolyte may also contain an inert organic liquid diluent such as an ester, ether or ketone, e.g. acetone. The cathode used may be of graphite, silver or platinum. Electrolysis may take place under an inert atmosphere, e.g. nitrogen. Alkyl silicate or alkyl polysilicates formed may be subsequently hydrolysed to an alkahol and silica. The silica sol is stabilized by de-ionization and acidification. Current used may be D.C. or rectified A.C. with or without smoothing.
Patent GB-1067444-A (GB)
Title: Improvements relating to protective apparatus
Inventor: HUTCHINS ROY
IPC: H03K17/82
Filed: 1963-01-29
Abstract: 1,067,444. Magnetic storage devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 15, 1964 [Jan. 29, 1963], No. 3657/63. Heading H1T. [Also in Division H3] In a laddie at least the major part of the reset winding is arranged on the output side of the last by-pass limb carrying a control winding and at least part of the reset winding is arranged on the output limb on the side limbs immediately adjacent thereto. The laddie is of the kind in which a signal is produced in the output winding on the output limb 8 only when a set signal is applied to the set winding on input limb 1 and all the control windings or by-pass limbs or rungs 2, 4, 6 are energized. In order to prevent an output signal appearing during a set pulse when one of the control windings has a short circuit and is de-energized the reset winding is wound between rung 6 and output rung 8. The main part of the winding R51 is wound around window W6 so that it produces an m.m.f. acting around the path formed by the end rungs and the full lengths of the side limbs with the result that if one of the control windings short circuits the m.m.f. due to the reset winding acts along the appropriate rung insufficiently to sustain the control winding flux. A small further reset winding RS2 combines with control winding 3 to produce an m.m.f. which will prevent the m.m.f. due to the main section RS1 acting through the rung 7 and thereby making it act along the rung 8. In the arrangement of Fig. 4 (not shown), a third small reset winding is wound round the window W5 to improve the action of reset. In order to make the control windings smaller, short-circuited windings may be added to the rungs carrying the control windings, Figs. 5, 6, 7 (not shown).
Patent GB-1165852-A (GB)
Title: Electrically Heated Geysers
IPC: F24H9/20
Filed: 1968-01-24
Abstract: 1,165,852. Electric water heaters. SIEMENS - ELECTROGERATE G.m.b.H. 24 Jan., 1968 [1 Feb., 1967], No. 3834/65. Heading H3H. When the top 4 of a geyser 1 is opened bimetallic element 5 is cooled by cold water flowing through supply pipe 2 and closes a contact set 9 to connect heating element 10 to supply 13, a pair of heaters 11 and 12 in parallel with the geyser heating element 10 being provided to heat the bimetallic element 5 so that it will open the contact at 9 more rapidly after the tap 4 has been closed. The bimetallic element has two sensing sections, section 6 sensing the water supply temperature and section 7 sensing the room temperature. If, while the tap 4 is closed, the room temperature drops to the region of the supply temperature, the heating element 10 will be switched on and off until the temperature in the pipe 2 is raised sufficiently to cause contact set 9 to open. Cooling of sensing section 6 of bimetal 5 may be delayed by surrounding thermal insulation or by widening the inlet pipe 2 to form a chamber 14.