baber/WOPTO huggingface dataset:
Patent GB-449103-A (GB)
Title: Improved machine for planting seeds and distributing fertilisers
IPC: A01C7/06
Filed: 1935-02-19
Abstract: 449,103. Distributers for seeds and manures. McWATTERS, A., Waioma, Hillgrove, New South Wales, Australia. Feb. 19, 1935, No. 5289. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 22, 1935.] [Class 6 (i)] A wheeled machine is provided with a seed box and transversely adjustable fertilizer receptacles and with mechanism driven from the wheels for simultaneously depositing seeds and fertilizer at predetermined intervals, the seeds being delivered from the seed box by means of an apertured plate rotating under a fixed conical plate provided with scrapers and ejectors. The machine comprises two U-shaped frames 9 mounted on two wheels 12 and provided with a seat 10 and a draught pole or bar 13. The two or more fertilizer receptacles 17 are adjustable laterally on a sub-frame comprising rods 16. In each receptacle 17 is a helical conveyer slidably mounted on a square shaft driven from a wheel 12 by chain-and-spur gearing, which may be variable. The conveyer feeds the fertilizer into a tube 24 through an outlet below a shalf in the receptacle. Within the seed box 32 is a fixed cone beneath which is a rotary plate provided with apertures to receive single seeds and carry them beneath bridges to outlets connected with the tubes 24 by flexible pipes 35 and tubes 36. Fixed on the bridges are springs bearing on pivoted brushes or scrapers and hammers or ejectors. The rotary plate is driven from a transverse shaft by bevel gearing and a vertical shaft 40 which may be raised when the driving gears are to be synchronized. On the transverse shaft is a star-shaped cam which acts on a tappet on a spring-controlled shaft provided with arms linked to arms 65 on valves in the tubes 24. By this means the seeds and fertilizer collected in the tubes 24 are dropped together periodically. The tubes 24 terminate between earth-spreading plates 67 behind furrow-forming tines or shares 68 and in front of furrow-filling plates 56, all carried by pivoted levers 69 held down by spring-controlled rods 73 passing through trunnion collars in brackets 76 adjustable along a shaft 80. This shaft may be rocked by means of a hand-lever 85, link 83, and crank arm 82. The valves in the tubes 24 may be perforated to allow of continuous discharge of fertilizer.
Patent GB-886364-A (GB)
Title: A process for the manufacture of unsaturated alcohols and acyl derivatives thereof
IPC: C07C29/42
Filed: 1960-02-16
Abstract: Alcohols and esters of the general formula CH3-R1-CH=CH-CH=CH-R2-X1 in which X1 is a hydroxy-methyl or esterified hydroxy-methyl group and R1 and R2 are alkylene groups together containing 8-12 carbon atoms, are obtained by reacting a Grignard or alkali-metal derivative of acetylene with one of the aldehydes of the general formulae CH3-R1-CHO and X2-R2-CHO in which X2 is a carboxyl, alkoxycarbonyl, hydroxymethyl, acetal or etherified or esterified hydroxymethyl group, reacting a Grignard or alkali metal derivative of the reaction product with the other aldehyde reducing the acetylenic glycol of the formula <FORM:0886364/IV (b)/1> thus obtained and, where necessary, converting the group X2 into a hydroxy-methyl or acyloxymethyl group in a manner known per se.  Preferably, the reactions with alkali metal derivatives are carried out in liquid ammonia.  The acetylenic glycol may be reduced by a metal hydride, e.g. lithium aluminium hydride, in the presence of an organic base, e.g. N,N-diethylaniline. When X2 is an esterified or etherified hydroxy-methyl group it can be converted into a hydroxy-methyl group by hydrolysis, when it is an acetal group it can be converted to a hydroxy-methyl group by acid hydrolysis followed by reduction of the resulting aldehyde with lithium aluminium hydride, and if X2 is an alkoxy carbonyl group it may be reduced to a hydroxymethyl group by reduction with lithium aluminium hydride.  In an example, a lithium derivative of acetylene is reacted with butyraldehyde to give hexyn-(1)-ol-(3) which is added to a Grignard solution obtained by reacting magnesium and ethyl bromide in ether; 9-oxo-nonanoic-(1) acid methyl ester is added and 10,13-dihydroxyhexadecyn-(11)-oic-(1) acid methyl ester is separated; the ester is then reduced with lithium aluminium hydride and hydrolysed with sulphuric acid to give hexadecadien-(10,12)-ol-(1).
Patent GB-949865-A (GB)
Title: Improvements in or relating to tool holders
Inventor: NIXON RAYMOND FRED
IPC: B23B31/107
Filed: 1961-02-15
Abstract: 949,865. Machine tool details. BEAVER TOOL & ENGINEERING CORPORATION. Feb. 15, 1961, No. 5555/61. Heading B3B. A holder for a tool or for a tool-holder comprises a locking member 22 having an inner portion 28 to engage a recess 32 in a tool shank 17, the locking member being threaded to engage a bore opening into a socket for the tool. The double-start thread has an angle of not more than 7 degrees. A shoulder 30 on the locking member 22 assists in disengaging the tool. The tool has a cylindrical shank 17 and a slotted collar 37 to engage a driving dog 36. The end 38 of the member 22 also forms a driving dog. In a modification, movement of the threaded member 52, Fig. 3, is limited by a pin 61. The tool shank is also engaged by a key 64 which is retained by a screw 66 which is retained by a screw 66 which also secures a driving dog 67. A diametrically-opposite driving dog is also provided. In a further modification, the locking member has two threaded parts 78, 92, Fig. 7, the latter being rotated to clamp and unclamp the tool. Each of the holders may have only one driving dog.
Patent GB-821690-A (GB)
Title: High strength-variable porosity sintered metal fiber articles and method of making the same
IPC: B22F3/00
Filed: 1956-02-23
Abstract: Filters, transpiration cooling elements, heat-exchange materials, bearings, electric brushes, magnetic circuit elements and so on are made by suspending metal fibres in a liquid medium, matting the fibres and bonding them e.g. by melting a coating of brazing alloy previously applied to the fibres, or by sintering, if desired, after compacting the mat.  The fibres may be matted by deposition on a travelling web, by slipcasting in a porous mould or by depositing the fibres on the outside of a porous core immersed in the slurry, a partial vacuum being applied to the interior of the core.  Sintering temperature are 38-75 DEG C. higher than for powders of the same materials.  More than one layer of material can be deposited, if necessary using a magnetic field to orient one layer in a different direction.  Fe, Mo, Ni and stainless steel are specifically mentioned as fibre material and copper may be used, as the brazing metal.ALSO:Filters, transpiration cooling elements, heat-exchange materials, bearings, electric brushes, magnetic circuit elements and so on are made by suspending metal fibres in a liquid medium, p matting the fibres and bonding them e.g. by melting a coating of brazing alloy previously applied to the fibres, or by sintering, if desired, after compacting the mat.  The fibres may be matted by deposition on a travelling web, by slip-casting in a porous mould or by depositing the fibres on the outside of a porous core immersed in the slurry, a partial vacuum being applied to the interior of the core.  Sintering temperatures are 38-75 DEG C. higher than for powders of the same materials.  More than one layer of material can be deposited, if necessary using a magnetic field to orient one layer in a different direction.  Fe, Mo, Ni and stainless steel are specifically mentioned as fibre material and copper may be used, as the brazing metal.
Patent GB-537102-A (GB)
Title: Improvements in or relating to electric secondary cells
IPC: H01M2/30
Filed: 1939-11-16
Abstract: 537,102. Batteries. FULLER, L., and SUDLOW, E. W. Nov. 16, 1939, No. 5685/41. Divided out of 537,072. [Class 53] An accumulator of the so-called dry type comprises a tubular casing closed at both ends, electrodes extending longitudinally within the casing, porous material filling the whole of the remaining space and extending from one end wall of the casing to the other. A removable vent plug at one end, one or both connections being made at the other end. The plug itself may serve as one terminal. The accumulator described is identical with that described in Specification 537,072. Specifications 348,235 and 506,062 also are referred to,
Patent GB-1223982-A (GB)
Title: Seal for hydrostatic thrust bearing
IPC: F16C32/06
Filed: 1969-02-03
Abstract: 1,223,982. Bearings. EXCELERMATIC Inc. 3 Feb., 1969 [5 Feb., 1968], No. 5702/69. Heading F2A. A hydrostatic thrust bearing comprises a load-carrying member 10, a supporting member 11, and a fluid-pressure responsive element 27, upon opposite surfaces 32, 34 of which act opposing fluid forces and which is disposed to obstruct the fluid inlet and outlet openings 36, 35 of the cavity 17, thereby controlling the rate of fluid discharge in response to the difference between the said forces. Fluid is supplied via ducts 19, 22, and excess fluid leaves via a duct 20, which is closed during rest by a plate 21 held down against a spring 23 by the weight of the member 10 acting through pads 26. Satisfactory clearances at the surfaces 32, 34 are provided by means of a spacer 37. Vibrations are damped by the inclusion of a highly compressible ring 43 of polyurethane foam.
Patent GB-765571-A (GB)
Title: An electric contact spring assembly
IPC: H01H50/56
Filed: 1954-02-26
Abstract: 765,571. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd. Feb. 26, 1954 [March 7, 1953], No. 5732/54. Class 38(5) The fixed contact springs 6 are held in position in slots or apertures in three insulating supports 2, 3, 11 fixed between side plates 1, the central support 2 exert. ing pressure on the springs 6 in the opposite direction to that exerted by the supports 3, 11. The support 11 is in two parts for the upper and lower springs 6, respectively, and the distance between the parts may be adjustable to vary the spring tension. The springs 6 are arranged in pairs side-by-side, each pair including a movable contact spring 7 fixed by bent-out lugs 21, 21<SP>1</SP> to the support 2. The springs 7 are operated by an armature 9 through an actuator 8. biased by wire return springs 5 fixed to the plates 1. In a modification, Figs. 4, 5, the contacts 6<SP>1</SP>, 7<SP>1</SP> comprise spring wires formed with off-set portions at their fixed ends passing through slots 11<SP>1</SP> in the support 11 whereby twisting of the wires is prevented. The wires 7<SP>1</SP> are clamped against the centre part of the support 11 by a slotted insulator plate 17 engaged by a spring plate 18 pressed down by a bar 19 fixed between the side plates 1.
Patent GB-433727-A (GB)
Title: Improvements in or relating to rubber compositions and articles composed thereof
IPC: C08K3/02
Filed: 1934-02-21
Abstract: A rubber composition particularly for covering electric cables comprises a rubber mix and a fire-resistant filler including a chlorinated naphthalene and selenium.  A suitable filler consists of a carbonate of Group 2 of the Periodic Table, e.g. alkaline earth, zinc or magnesium carbonate, 30-42, selenium 1-5, and a chlorinated naphthalene 5-20 per cent of the total weight of the composition. The preferred composition has the percentage composition by weight: smoked sheet rubber 35, magnesium carbonate 41, selenium 1, a chlorinated naphthalene 14,5, carbon black 5, sulphur 2, anti-oxidant 1, and accelerator 0,5.  Part of the magnesium carbonate may be replaced by zinc oxide or French chalk up to 5 per cent of the total weight.  Suitable chlorinated naphthalenes are those known by the Registered Trade Marks "Seekay," and "Nibren."  A sheathing of the composition may be applied to a cable in any known way.
Patent GB-1422706-A (GB)
Title: Travelling wave tubes
IPC: H01J23/30
Filed: 1973-02-06
Abstract: 1422706 Travelling wave tubes SIEMENS AG 6 Feb 1973 [7 Feb 1972] 5768/73 Heading H1D High frequency parasitic modes in a travelling-wave tube delay line mounted adjacent a dielectric body bearing attenuating material are suppressed by the provision of a metallized area or areas on the body in a form constituting a sequence of resonators or an auxiliary delay line, coupled to the delay line only for the parasitic mode, and damped by the attenuating material. As described, the delay line is a helix supported by ceramic rods which may (Figs. 1 and 2, not shown) bear a sequence of parallel conductive strips joined at their adjacent ends by attenuating material, the strips each having a length #s/2, where #s is the mean wavelength of the parasite mode. Alternative arrangements are shown in Figs. 3 and 4, where reference numerals 5 and 6 represent the conductive and the attenuating material respectively, or the conductive material may be in the form of an interdigitated delay line (Fig. 5, not shown) with an axial strip of attenuating material covering the ends of its fingers. In a further embodiment, Fig. 8, the dielectric body 9, is distinct from the helix support rods 2, and is spaced from the helix. Reference is made to arrangements in which the attenuating material is positioned adjacent portions of the metallized area which face away from the delay line, and, if the dielectric body is a ceramic rod, to the possibility of varying the coupling with the delay line by rotating the rod. The damped metallized structures are preferably divided into a plurality of sections arranged in sequence along the delay line, such that the full parasitic mode voltage is developed across each section.
Patent GB-578115-A (GB)
Title: Improvements in turbines and the like
IPC: F01D5/30
Filed: 1941-05-07
Abstract: 578,115. Gas turbines. BAUMANN K., GUY. H. L., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 7, 1941, No. 5942. Drawings to Specification. [Class 110 (iii)] The blade-retaining grooves in the rotor and stator are disposed in an axial direction and the blade roots have a relatively big dimension in that direction.
Patent GB-1066102-A (GB)
Title: Glass tubing dimension control system
IPC: C03B17/04
Filed: 1965-02-11
Abstract: <PICT:1066102/C1/1> In glass tubing drawing apparatus which includes means for maintaining the outer diameter of the tubing T constant, a control system for adjusting the wall thickness comprises a gauge 55 for continuously producing a first signal 54 representing the entire annular cross-sectional area of the tubing T, a pre-set signal 58 representing the annular cross-sectional area of tubing of the required outer diameter and wall thickness, means 57 for continuously comparing the signals 54, 58 and continuously producing a third signal 59 representing the deviations in wall thickness, and speed control means 65 responsive only to the third signal 59 for adjusting the speed of draw of the tubing T by tube drawing means 68 to adjust for the deviations in wall thickness. The means for maintaining the outer diameter of the tubing T constant may be as disclosed in Specification 943,305 and the gauge 55 may be as disclosed in Specification 905,307.
Patent GB-469142-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C17/07
Filed: 1936-02-29
Abstract: 469,142. Ball mills. VICKERS-ARMSTRONGS, Ltd., and PARKER, L. D. Feb. 29, 1936, No. 6192. [Class 59] A grinding drum is divided by radial partition members into axial compartments having inlet and outlet openings for permitting the balls and material to pass successively from one compartment to another during rotation of the mill, the openings being arranged for an axial flow of material along each compartment from the inlet to the outlet openings. As shown the mill is divided into chambers 14, 15, 16 by perforated discs, 17 which may be in sections, the inner section being supported by webs 18 having four radial arms. Each chamber is divided into four parts by radial partitions 19 which may be aligned or helically arranged. The partitions comprise a number of sections, each section comprising radial members 19, Fig. 2, which may be separate or, as shown, may be connected integrally together. The outer ends of the radial members are tapered to engage chocks 20 and wedges between the chocks may engage the ends of the members. The members 19 and drum lining 13 may be corrugated and the compartments formed by the members 19 in each chamber 14, 15, 16 may be staggered, as shown in dotted line, Fig. 2, in order to balance the charge in the drum. The members 19 may be perforated and lifter arms may feed the ground material from one chamber to another. During rotation of the mill some of the material and balls enter a compartment at one end and tend to pile up and thereafter flow axially along the compartment to the outlet 27 and into the next compartment, the flow of material through this compartment being in the opposite direction. The material and balls thus take a zigzag course through the four compartments, the fine material passing through the perforated partition 17 into the next chamber and finally is discharged through outlet 11 in trunnion 12.
Patent GB-225438-A (GB)
Title: Improvements in hearing appliances
IPC: A61F11/00
Filed: 1924-03-11
Abstract: 225,438. Fensky, C. March 11, 1924. Hearing appliances; radiations, treating diseases with.-An appliance for assisting hearing comprises a curved hollow member 7 terminating at one end in a hollow ball 8 formed integral with a hollow-headed tube 9. The member 7 is flattened at its other end and has an opening 11 on the same side as the tube 9. A web 12 having a bent-over upper portion 13 is preferably formed on the outside of the member 7, the interior of which may be partly corrugated, as at 15. In use, the tube 9 is inserted into the ear passage until, as shown in Fig. 6, the member 7 lies against the inside of the ear with the opening 11 turned towards the bead and the web 12 towards the outside of the ear. For the treatment of diseases the device, especially that part which extends into the ear, may be charged with radium.
Patent GB-1107496-A (GB)
Title: Electrical switch
IPC: H01H13/56
Filed: 1967-02-09
Abstract: 1,107,496. Press-button retractive switches. UNITED-CARR Inc. 9 Feb., 1967 [9 Feb., 1966], No. 6279/67. Heading H1N. A press-button switch comprises a movable coil spring contact 16, Fig. 2, with a smaller diameter portion 44 engaged by the inner end of the button 14 and a larger diameter portion 40 retained in recess 30 of an electrically conducting casing 22, an intermediate diameter portion 42 serving as the retractive spring for the press-button 14. The fixed contact is mounted in an insulating sleeve 18 inserted in the housing 22 to retain the spring 16 by its inner end 32. An optional latch is provided by a projection 14a on the button 14 sliding in an axial groove 24a in the housing and engageable for locking in a circumferential groove 14b by rotation of the press-button 14.
Patent GB-536395-A (GB)
Title: Electric sensitive paper
IPC: B41M5/20
Filed: 1940-04-08
Abstract: 536,395. Copying telegraphy. FINCH, W. G. H. April 8, 1940, No. 6325. Convention date, April 7, 1939. [Class 40 (iii)] [Also in Group VIII] Conductive paper for dry electric recording, e.g. in the reproduction of pictures, and containing coloured conducting material, e.g. lampblack, is coated with a binder, e.g. nitrocellulose, cellulose acetate, natural or synthetic resins or gums, casein, &c. pigment, e.g. titanium dioxide, zinc oxide, lead oxide, or lead carbonate, and a metal powder or conductive metal salt, e.g. aluminium powder, nickel chloride, &c. The coating mixture is thinned as with alcohol and applied by spraying, dipping, flowing, &c. or preferably using a roll having crossing series of grooves leaving small block segments of the surface each picking up a small globule of coating, the globules coalescing to give a uniformly thick deposition on to the paper. The coating may also include aniline hydrochloride or cadmium iodide, &c. to increase the sensitivity of the titanium dioxide, &c. to give clearer images, and potassium or sodium nitrates &c. to cause converted coating to be flaky. The paper on which the coating is applied is rendered conductive by addition to the pulp of as much lampblack, &c. as it will hold. Rag paper 0.003 inches thick with a coating 0.00025 inches thick may be used.
Patent GB-1473638-A (GB)
Title: Control apparatus for electric motors
IPC: H02P23/00
Filed: 1973-02-09
Abstract: 1473638 Automatic control of speed COLOUR CASSETTES Ltd and COLORCASSETTE Inc 9 May 1974 [9 Feb 1973] 6426/73 Heading G3R In an intermittent claw drive mechanism for a flying spot television scanner, a D.C. motor 11 is driven by a speed control system in which the motor speed is measured by a tachometer producing pulses at a frequency proportional to speed, that trigger a monostable circuit 24, the time constant of which sets the desired motor speed, for example at ¢ or <SP>1</SP>/ 3  field frequency. The output of 24 is integrated to form a speed dependent voltage that is fed to motor speed control amplifier 12. To control the phase of motor 11 i.e. to ensure that the scanned film is moved only during field blanking periods, amplifier 12 receives a further input from gate 16 according to the sensed motor speed and field blanking periods. Gate 16 is opened by differentiating circuit 17, which receives the output of monostable circuit 24 via frequency dividers 35, 36. Gate 16 passes a portion of a ramp signal generated from the field blanking pulses supplied at 14. A pulse from sensor 37 is generated for each revolution of the motor, each pulse resetting the dividers 35, 36. The division by dividers 35, 36 is adjustable so that the film is moved at two pre-set speeds e.g. 18 or 24 frames/sec. The tachometer comprises a motor driven disc 32, 34 with opaque portions 43 that interrupt the light from light sources 31, 42 to sensors 27, 37 e.g. phototransistors. The control circuits are described with reference to Figs. 2-6 (not shown) and the complete scanning system with reference to Fig. 7 (also not shown).
Patent GB-134157-A (GB)
Title: Improved Means for Locking Nuts.
Inventor: MUSTED GEORGE GORDON
IPC: F16B39/36
Filed: 1919-03-15
Abstract: 134,157. Musted, G. G. March 15, 1919. Locking nuts.-A nut 1 has a split reduced portion 2 formed with a rounded head 3 which is free to move endways in a V- shaped recess 11 in a locknut 6. After the two nuts have been screwed up together, independent rotation of the nut 6 in either direction causes the split part 2 to be compressed against the bolt.