baber/WOPTO huggingface dataset:
Patent GB-471856-A (GB)
Title: Winch for agricultural tractors and the like
IPC: B66D1/22
Filed: 1936-03-07
Abstract: 471,856. Driving auxiliary parts on tractors. SWINSON, E. A. S. March 7, 1936, No. 6938. [Class 79 (ii)] [Also in Group XXX] A self-contained winch adapted for ready attachment to agricultural tractors &c., having a power take-off shaft extending at the rear thereof substantially at right-angles to and adjacent the level of the rear axle comprises a frame 1, la attachable to the back axle casing. The winding drum 11 is carried by a shaft 2 on which rides freely a worm wheel 5 meshing with a worm 4 on a shaft 4a connected by a universal joint to the power take-off shaft. The boss 5a of the wheel 5 acts as a bearing for a brake drum 9 which carries the planet wheels 8 of an epicyclic gear, the sun-wheel 7 of which is fixed to the boss 5a and the outer ring 10 of which is on a flange integral with the drum 11. The brake band 12 is held by a pin against rotation and is tightened by a manually operated screw. On applying the brake the drum 9 is slowed or held, and the power is applied through the epicyclic gear to drive the drum 11 and lift &c. the load. On freeing the drum 9 the suspended. load will fall by gravity, rotating the drum 11 &c., but this action is prevented by the worm gearing 4, 5 as long as the drum 9 is held. A felt ring 6 retains oil in the worm gear casing 3. In a modification, the brake is dispensed with and the outer ring 10 is separate from the drum 11 but connectable thereto by a hand-operated retracted pin on the drum engaging a recess in the boss of ring 10. In this form the planet wheels are on the frame 1 and the gearing acts simply as a reduction gear. The pin may be adapted to shear with over-load.
Patent GB-838257-A (GB)
Title: Improvements in and relating to mechanical seeders
IPC: A01C7/04
Filed: 1958-03-04
Abstract: 838,257. Seed sowing machines. FERTE, A. M. A. March 4, 1958 [March 4, 1957], No. 6941/58. Class 6(1). A seed sowing machine comprises a distributer 6 together with a seed extractor 10 constructed as a unit which may be removed from the machine and replaced by another unit adapted to sow different seeds. As shown the distributer 6 comprises a disc formed with peripheral seed holding cavities 7 and made in two parts spigoted one into the other to form a groove in which is mounted the extractor 10 which is located in position be means of a pin 32. A door 25 is provided in the side of the machine so that the disc and extractor may be removed together with a rubber wheel 15 that removes excess seed from the disc . Seed falls into a shoot 11 and a ploughshare 12 opens up a furrow for the seed, the seed being covered by extensions 13 of the ploughshare 12.
Patent GB-1502565-A (GB)
Title: Halogenation of metal phthalocyanines
IPC: C09B47/10
Filed: 1976-02-23
Abstract: 1502565 Preparing polyhalogeno metal phthalocyanines IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Jan 1977 [23 Feb 1976] 07035/76 Heading C4P Polyhalogeno metal phthalocyanines are prepared by adding chlorine and/or bromine to a metal phthalocyanine in titanium tetrachloride which is in contact with aluminium metal. The aluminium metal may be in sheet or rod form and may act as anode through which a direct current is passed in presence of an electrolyte, e.g. phosphorus oxychloride. The reaction takes place at 50-150‹ C. using 2-20 times by weight of titanium tetrachloride based on the weight of metal (e.g. Cu or Al) phthalocyanine. Sulphuryl chloride or thionyl chloride may also be present and the titanium tetrachloride may be recovered by distillation.
Patent GB-495934-A (GB)
Title: A solution for preserving organic fibrous materials such as textiles
Filed: 1938-03-08
Abstract: 495,934. Proofing permeable materials. BOLIDENS GRUVAKTIEBOLAG. March 8, 1938, No. 7206. Convention date, Aug. 21, 1937. [Class 140] A solution for preserving organic fibrous materials such as fabrics, comprises a bichromate, e.g. sodium bichromate, a preserving agent and a mild reducing substance such as sugar or saccharine substances, e.g. molasses or syrup, to protect the material from attack during the reduction of the bichromate. According to the example, the solution contains as preserving agents arsenious acid with a cadmium compound such as cadmium sulphate. Zinc or copper compounds may be used together with or instead of the cadmium compound.
Patent GB-475243-A (GB)
Title: Improvements in or relating to strainers in dish-washing machines
IPC: A47L15/42
Filed: 1937-03-11
Abstract: 475,243. Dish - washing machines. WESTER, K. R. March 11, 1937, No. 7227. [Class 138 (i)] A dish-washing machine is characterized in that a grease table 1 situated between a strainer 5 and the liquid surface 3, is provided with a number of outlet channels 2 of shovel-like section, which channels are inclined relative to the plane of the table. The liquid surface below the table is unbroken so that the flow of liquid caused by the inflow of rinsing liquid brings the impurities floating on the surface to the outlet 4. The channels 2 are directed substantially towards the overftow outlet 4 and the part 9 of the table above the outlet is formed without channels. The outlet, channels may be formed directly from the plate material. The strainer 5 and the grease table 9 may he supported by conical flanges 14 which rest on a conical portion 8 of the container.
Patent GB-1389189-A (GB)
Title: Adjustable vehicle seat
IPC: B60N2/18
Filed: 1973-02-14
Abstract: 1389189 Adjustable vehicle seats BROSEVERWALTUNGSGESELLSCHAFT mbH [trading as METALLWERK MAX BROSE & CO] 14 Feb 1973 [14 Feb 1972] 7244/73 Heading A4J Each side of a vehicle seat frame 1 is adjustably supported on a sub frame 2 by, at one end thereof, a swivel arm 3 pivotally connected at 5 to the seat frame and fixed to a tube 6 rotatable in the subframe and, at the other end thereof, a pair of pivotally inter-connected arms 8, 10, the upper arm 8 of which is pivotally connected at 7 to the seat frame and the lower arm 10 of which is fixed to a tube 11 rotatable in the sub-frame, the swivel arm 3 and the pair of arms 8, 10 each being associated with a separate toothed locking mechanism 28, 29, 35 and 14, 17, 19 respectively, the two mechanisms being separately operable by a single lever 12. The locking means associated with the swivel arm comprises a toothed segment 28 provided on the swivel arm and engaged by a toothed slide 29 engaged by a cam 35 on a block 34 rotatable on the tube 6, the slide being guided for movement in the sub-frame by a pin 32 on the slide engaged in a slot 33 in the block. Disengagement of the segment and slide is effected when a push-rod 37 is moved by a lever 12 to turn the block 34. The locking means associated with the pair of arms comprising a toothed segment 14 integral with the upper arm 8 and a toothed pawl 17 pivoted on the sub-frame 2 and moveable into and out of engagement with the segment by a cam 19 rotatably mounted on the tube 11 and moved by a push-rod 23 connected to the lever. In the second embodiment shown in Fig. 2, the locking mechanism associated with the swivel arm 40 comprises a toothed segment 50 fixed on the tube 48 on which the arm is mounted and engaged by a toothed slide 52 through which the tube extends, horizontal movement of the slide to disengage the segment being effected by a cam 57 rotatably mounted on the slide and engaged with the tube to move the slide. The lock mechanism associated with the pair of arms 43, 44 comprises a pawl 73 pivoted on the sub-frame and having a guide tongue 72 with a pin 71 engaged in a slot 70 in a slide block 66, the pawl being moved out of engagement with a toothed segment 77 fixed on the tube 46 to which the lower arm is fixed by rotation of the slide block about the tube 46 on movement of a push-rod 68 connected to the hand lever. The swivel arm may be at the front or the rear of the seat.
Patent GB-127670-A (GB)
Title: Improvements in or relating to Gas Operated Automatic Small Arms.
IPC: F41A5/18
Filed: 1917-05-19
Abstract: 127,670. Soc. Anon. des Etablissements Delaunay Belleville. Feb. 6, 1917, [Convention date]. Addition to 127,663. Breech actions, sliding breech-block; protecting from dust and rain.-Consists in providing the gas-operated gun described in the parent Specification with a sliding breech cover 1 having inwardly-directed flanges 3, 4, Fig. 3, engaging grooves in the breech casing. When the breech is opened, the bolt handle 7, Fig. 5, engages the forward end of the cover, whereby the cover is drawn back to expose the ejection opening.
Patent GB-885953-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01C1/077
Filed: 1960-03-01
Abstract: 885,953. Rotary engines. JOUBERT, E. G. March 1, 1960 [March 4, 1959], No. 7266/60. Class 110 (2). In a rotary internal combustion engine of the intermittent abutment type, the casing 1 has within it aligned bearings 4, 5, in the bearing 4 of which is revolvably carried a hollow shaft 6, on which is mounted an inner casing 11, to which the combustion cylinder 12 is radially secured, while the arcuate piston connecting rod 23 is pivotally secured 21 to a lever 20 rigid with a second shaft 19 mounted coaxially inside the shaft 6, the two shafts being interconnected. A pinion 68 is keyed to the shaft 6 and has two arcuate concave areas, which hold a cam 80, Fig. 3 (not shown), which is connected through the shaft 19 to the piston, stationary, while the fluid is admitted and exhausted respectively, through a port 55 in the cylinder head.
Patent GB-917126-A (GB)
Title: Improvements in or relating to latching mechanisms
Inventor: KITSCHA HECTOR
IPC: H01H51/12
Filed: 1961-02-28
Abstract: 917,126. Electrically-tripped switches; latching switches. BROOKHIRST IGRANIC Ltd. Feb. 28, 1961, No. 7268/61. Class 38 (5). [Also in Group XXV] A latching mechanism for an electric relay comprises a shaft 29 secured at 30 to the contact-carrying armature of the relay, Fig. 1 (not shown) and slidable in the bore 28 of a core 27, which is magnetizable by a coil 34 and is secured to a base-plate 25 carried by the frame 13 of the relay. The shaft 29 also slides inside a cage 46 supporting balls 50a, 50b, 50c which engage the tapered bore of a fixed housing 42, the cage 46 normally being forced upwards by the engagement of a spring 49 with a washer 48 so that the balls are aligned with a groove 31 in the shaft 29. Actuation of the relay causes downward movement of the shaft 29 and, through engagement of the shoulder 31a with the balls 50a, 50b 50c of the cage 46, until outward movement of the balls allows them to clear the shaft 29 and be forced upwards by the spring 49 to latch the shaft 29 in its operated position. The latch may be released either manually by depressing the washer 48 or electromagnetically by energizing the coil 34 and so attracting the cage 46 towards the core 27, the shaft 29 being restored by a spring acting on the relay armature. The core 27 has a shading coil 32 to reduce vibration of the latching mechanism when the coil 34 is energized by A.C. power supply, and the shaft 29 may be adjusted relative to the armature by a tool insertable in a slot 29a.
Patent GB-911574-A (GB)
Title: Improvements in or relating to milking plants
IPC: A01J5/04
Filed: 1960-03-02
Abstract: 911,574. Milking machines. SEPARATOR A.B. March 2, 1960 [March 2, 1959], No. 7380/60. Class 5(1). A milking plant comprises a milk pipe line 1 through which milk under vacuum is conveyed from the milking point directly to transport cans, and a milk separating device 7 arranged in the pipeline 1 and connected to the vacuum line 3 through a valve 15. A vacuum valve 14 is connected to the initial end of the pipeline. For cleaning purposes the initial end and final end 8 of the milk pipeline are connected through a non-return valve 19 and washing liquid is drawn into the device 7 through a pipe 1 la, the liquid being circulated through the milk pipeline by means of air let into the loop 2 through a pulsator valve 20.
Patent GB-370603-A (GB)
Title: Improvements relating to coal boring machines and like apparatus
IPC: E21B7/02
Filed: 1931-03-10
Abstract: 370,603. Rock drill supports. BUTLER, A., Firbank, Houseley, Chapeltown, Sheffield. March 10, 1931, No. 7403. [Class 124]. The strut tube 18 is freely rotatable on a bearing 20 which can be raised or lowered by the nut 16 on the screw 15, the nut being rotated by the hand-wheel 17. The screw is carried on a member 10 which can pivot over a circular path about a bolt 8 carried in the baseplate 3.
Patent GB-962380-A (GB)
Title: Time-keeping electric device
IPC: G04C3/06
Filed: 1963-02-25
Abstract: 962,380. Clocks and watches. KIENZLE UHRENEFABRIKEN A.G. Feb. 25, 1963 [Feb. 26, 1962], No. 7501/63. Heading G3T. A time-keeping device comprises a mechanical oscillator consisting of a balance 1, 3 and balance spring 2, this oscillator being maintained by a transistor circuit which includes a transistor 11 with energizing and working coils 4, 5 respectively in the base and emitter-collector circuits of the transistor, the coils being inductively coupled and the balance carrying a disc 3 of conductive material such as copper or aluminium positioned between the two coils to prevent the inductive coupling from taking effect excepting in the zero position of the balance when a gap 8 in the disc 3 comes between the coils, whereby the circuit starts into oscillation as the balance approaches the zero position and the balance is periodically impulsed by interaction between the flux of the working coil 5 and a permanent magnet 6 carried by the balance. In a modification, the disc 3 has a turned over flanged rim situated between the coils and in which the gap 8 is provided.
Patent GB-313216-A (GB)
Title: Improvements in or relating to hydraulic power transmitting apparatus
IPC: B64C25/44
Filed: 1928-03-10
Abstract: 313,216. Vickers, Ltd., Pierson, R. K., and Duncan, T, S. March 10, 1928. Regulating pump delivery by opening and closing delivery valves; valve gear. - A pump for use in hydraulic power transmission apparatus comprises a plunger 14 working in a cylinder 7 which draws from a reservoir 8 and delivers through a valve 10 to a pipe 11. The valve is unbalanced and is pressed to its seat by a spring 13 and has a stem 12 passing through the pump casing and carrying two stops 16, 19. When the pressure in the pump reaches a certain degree, the valve 10 is held in the open position, so that there is uninterrupted communication between the pump and the motor. To release the pressure completely in the motor, the valve may be opened by a link 14 when the pump lever 1 is moved beyond its normal limit on the suction stroke of the plunger. The valve may also be kept closed by the link 14 engaging the stop 19 at the end of a pumping stroke to maintain the motor in the position to which it has been moved. The apparatus may be used for actuating the brakes of aeroplanes.
Patent GB-993247-A (GB)
Title: Improvements in safety closures for screw top bottles, jars, cans or other screw topcontainers
IPC: B65D50/04
Filed: 1962-02-27
Abstract: 993,247. Stoppers. UNIVERSAL SAFETY CLOSURES PROPRIETARY Ltd. Feb. 27, 1962 [March 2, 1961], No. 7539/62. Heading B8T. A safety closure for a screw top bottle comprises an outer annular member 5 with a flange 6 which engages between the bottom of a screw cap 12 and a collar 10 on the neck of the bottle. The member 5, which may be of resilient plastics material, is freely rotatable about the cap 12 and prevents the normal gripping of the cap and its removal by an infant. The cap is knurled at 12a to improve contact with the user's palm. Radial ribs 15 on the member 5 keep the screw cap 12 and member 5 in contact. In other embodiments, the flange 6 may comprise circumferentially spaced sections and the ribs 15 may be rectangular or circular in shape. Specification 881,367 is referred to.
Patent GB-1027336-A (GB)
Title: Improvements relating to the production of polyamides
Inventor: DOWNING JOHN
IPC: C08G69/18
Filed: 1962-02-27
Abstract: A process for the polymerization of lactams comprises heating a lactam together with an alkali catalyst, an activator and an inert liquid having a boiling point in the range of 140 DEG  to 180 DEG C., at the boiling point of the organic liquid so that, during the polymerization, vaporization of the organic liquid occurs. Specified inert liquids are deresinified naphtha, petroleum fractions, halogenated hydrocarbons and ethers. The process may be effected in the presence of finely divided titanium dioxide or kieselguhr. The examples describes the polymerization of #z-caprolactam in the presence of sodium, xylene, finely divided titanium dioxide and N-acetyl-#z-caprolactam.
Patent GB-609339-A (GB)
Title: Dried food product and method of making same
IPC: A23B7/02
Filed: 1946-03-11
Abstract: Light of wavelength exclusively above 4,900 Angstrom units (i.e. excluding violet and ultra-violet light) is employed to dry fruit and vegetables.  Suitable filters are employed between the source, which may preferably be sunlight, to cut-off the unwanted wavelengths.  A method of preparing a suitable filter is described.  Specification 438,093 is referred to.ALSO:Light of wavelength exclusively above 4,900 Angström units (i.e., excluding violet and ultra violet light) is employed to dry fruit and vegetables.  Suitable filters are employed between the source, which may preferably be sun-light, to cut off the unwanted wavelengths.  A method of preparing a suitable filter is described.  Specification 438,093 is referred to.
Patent GB-595832-A (GB)
Title: Improvements in radio locating system
IPC: G01S19/40
Filed: 1944-04-24
Abstract: 595,832. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 24, 1944, No. 7625. Convention date, April 23, 1943. [Class 40 (v)] In a radiolocation system employing a stationary directive antenna system, the beam produced is caused to sweep in space by change of the frequency radiated, and an indication is given of the direction of the beam in response to a reflected signal. As applied to a pulseecho distance-measuring system, the transmitter comprises a pulse generator 12, modulator 13, R.F. oscillator 11 and power amplifier 10, the pulse - modulated radio - frequency being fed by a transmission line 17 to a plurality of spaced dipoles 16a, 16b, 16c. The radiation pattern produced by this antenna system is changed by varying the frequency of the oscillator by means of a thermionic reactance circuit 19 to which is applied the output of a saw-tooth or like periodic voltage generator 21. The receiver comprises a first detector 26, local oscillator 27, I.F. amplifier 28 and second detector and A.F. amplifier 29, the output being fed to the control grid of a cathode-ray tube 32. The frequency of the oscillator 27 is changed in synchronism with the change in radiated frequency and for this purpose it is controlled by a thermionic reactance circuit 31 to which the output of the generator 21 is fed. The output of generator 21 is also fed to the indicator 32 to provide low speed horizontal scanning. High-speed vertical scanning is effected by a saw-tooth generator 36 controlled by pulse generator 12. Alternatively, frequency modulation may be used and the frequency modulation swing for distance determination may be small compared with that for rotating the radiated beam or the two frequency swings may be substantially the same. The antenna system, Fig. 3, comprises a series of dipoles 16a, 16b, 16c loosely coupled, e.g. inductively, to the transmission line 17 which may be formed with folds or loops so that the electrical length of the circuit between adjacent dipoles is substantially greater than the distance between the dipoles. A reflector 41 may be placed behind the dipoles. Sharpness of the directivity pattern may be increased by providing a second unit similar to that shown in Fig. 3 in the same plane as this unit and underneath it. Specification 594,765 is referred to.
Patent GB-513640-A (GB)
Title: Electron discharge devices particularly cathode ray tubes
IPC: H01J29/48
Filed: 1938-03-11
Abstract: 513,640. Making cathodes. STANDARD TELEPHONES & CABLES, Ltd., GOOD - CHILD, F. D., BLACK, D. H., and FOULKES, C. H. March 11, 1938, No. 7648. [Class 83 (ii)] [Also in Group XL] An indirectly heated tubular cathode for an electron discharge device is formed by bending back into parallel relation two or more radially extending arms of a sheet metal blank. To obtain a tubular cathode, each arm is curved. In the form shown in Fig. 5, cuts are made in the central part of a star-shaped blank and the tongues' 7 are bent in one direction and the limbs in the other direction to form a cathode as shown in Fig. 6, the tongues serving to support the cathode on a mica bridge 6. In a modification, the ends of the limb are cut and bent to serve for fixing.
Patent GB-1003649-A (GB)
Title: Improvements in and relating to methods of and apparatus for maintaining constant tension in a wire during wire-winding operations
IPC: B65H59/04
Filed: 1963-02-27
Abstract: 1,003,649. Tension regulators. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 27, 1963 [March 2, 1962], No. 7873/63. Heading D1J. [Also in Divisions B3 and G1] Constant tension is maintained in a wire 2 while being wound from a supply reel 5 on to a non-cylindrical rotating body 3 such as the grid frame of a thermionic valve, by applying to the shaft on which the supply reel is mounted a braking action which varies in dependence upon the angular position of the grid and thus also in proportion to the speed at which the wire is being drawn from the reel. A beam of light 34 directed towards a photo-cell 38 is obstructed to a varying extent by a member 30 attached to the shaft 1 on which the grid frame is mounted, the output from the photo-cell being used to energize an electromagnetic or electro-motive brake 44 associated with the supply reel 5. The member 30 lies in the same plane as the frame 3 so that the braking action is reduced when the wire speed is increased and vice versa. In a modification (Fig. 1 not shown), the braking action is created by a jet of air acting upon a bladed wheel and the jet of air is regulated by a rotating butterfly valve. In a further modification (Fig. 3 not shown), the output from a photo-cell is used to oppose and reduce the constant braking action of a permanent magnet in a magnetic brake. In this arrangement the member regulating the passage of light to the photocell is disposed at right angles to the plane of the grid frame.