baber/WOPTO huggingface dataset:
Patent GB-247321-A (GB)
Title: Improvements in and relating to ploughs for agricultural purposes
IPC: A01B3/20
Filed: 1924-11-27
Abstract: 247,321. Whitaker, E., and Piper, D. Nov. 27, 1924. No Patent granted (Sealiriy fee not paid). Balance and disc-tool implements; tools; travelling gear.-In an oneway implement comprising a beam mounted on wheels at the centre and carrying one or more plough bodies at each end, the main part 9 the beam 1 is made substantially straight and the ends 2 semicircular, and the draught chain 17 is arranged to slide freely along a bar 15 reaching from end to end of the implement. The beam is provided with handles 18 and the ends may be furnished with wheels 4a carried by adjustable arms 4<b>. The standard of the furrow wheel 7 is clamped on a transverse bar 5a and the standard 11 of the land wheel 12 on a stayed member 13<b> extending downwardly from a frame 13 having inclined members 13a fastened to the ends 2 of the beam 1. The rod 15 is bent as shown at the ends and loosely connected to loop-shaped brackets 16. The shares 3 are made of sheet metal and are L-shaped in section. They are carried by brackets 20 adjustable by means of bolts passing through slots. The rear ends of the flexible mouldboards 4 are connected to brackets on the beam ends 2 and the front ends to the brackets 20. The landsides and mouldboards may be fitted with rollers 19 to reduce friction. Skim attachments may consist of angular steel plates 23 and discs 23<a>. Adjustable subsoilers may be provided. The Provisional Specification describes a U-shaped bracket projecting horizontally from the beam to carry the furrow wheel and support a draw-bar as the horse moves from one end of the implement to the other. It also refers to means for adjusting the handles, tension rods connecting the ends of the beam to brackets on the straight part, and a rectangular skim carried by a rocking lever.
Patent GB-1529024-A (GB)
Title: Field shunting circuit for a dc motor
IPC: H02P7/298
Filed: 1976-07-08
Abstract: 1529024 Control of DC motors TOWMOTOR CORP 8 July 1976 [28 Oct 1975] 28487/76 Heading H2J A series D.C. motor 13, 14 driving a vehicle is supplied from a battery 12 through a conventional silicon controlled rectifier unit 15 controlled by an accelerator foot-pedal (not shown), whose fully depressed position closes a switch 16 to energize a by-pass coil 17 having contacts 18 to shunt the unit 15 and contacts 19 which close to energize a circuit controlling a coil 20 having contacts 21 controlling a resistor 22 for connection across the field winding 14, the arrangement being such that contacts 21 close when the armature current decreases to a predetermined lower value, remain closed when the current rises above this value and open when the current exceeds a predetermined higher value. Energization and de-energization of the coil 20 are respectively controlled by the change of state of transistor amplifiers 33, 56 operating as differential-input bistable comparators and receiving at their inverting inputs 32, 55 signals representative of motor current from respective dividers 28, 29 and 51, 52, and at their non-inverting inputs 39, 59 adjustable reference voltages from dividers 34, 35, 36 and 58, 63, 64, which respectively set the predetermined lower and higher value. In a typical cycle of operations of the comparators the following sequence occurs:- (1) With current above the predetermined lower value, the output of comparator 33 is low to cause transistors 41, 42 to be turned on and transistors 45, 46 to be turned off. Also the low output is coupled via diode 60 to reduce comparator 56 input 55 below input 59 to produce a high output to cause transistors 61, 62 to be turned off. (2) When the current falls below the predetermined value, the output of comparator 33 goes high to turn off transistors 41, 42, turn on transistors 45, 46 to energize coil 20 and close contacts 21, and feed back to input 39 via members 49, 50 to latch the comparator in this condition. Diode 60 is now reverse biased but the output of comparator 56 remains high since the voltage at point 53 is less than the reference voltage at input 59. (3) When the current increases to exceed the predetermined higher value, the output of comparator 56 goes low to turn on transistors 61, 62, turn off transistors 45, 46 to open contacts 21, and interrupt (via diode 66) the feedback signal through members 49, 50 to reduce the input 39 below input 32 and cause the output of comparator 33 to go low, which output is then applied via diode 60 to comparator 56 to cause its output to go high as in (1) above, thus restoring the comparators to their initial conditions for another cycle of operations.
Patent GB-270969-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/055
Filed: 1925-11-12
Abstract: 270,969. Hesketh, B. Nov. 12, 1925. Fusible cut-outs.-A sheet of metallic foil or a layer of metal deposited upon a backing material such as paper is used as a fuse by bring- ing in contact with its surface a current carrying point or fine contact wire. The foil &c. 11 is carried upon a disc or cylinder 10 which may be of conducting material connected to a terminal 15. The terminal 18 is attached to an arm 17 carrying a wire 20, a fresh point of contact of the wire being obtained by turning the cylinder by means of the screw 12 and knob 13. If metal faced paper is employed it may be folded before mounting on the cylinder so that it presents a metallic face to both the cylinder 10 and the wire 20. If a disc of foil is used it is mounted on a conducting or non-conducting plate in which a terminal is secured making contact with the foil. The contact wire is moved over the disc by a rotatable arm the length of which may be variable.
Patent GB-247323-A (GB)
Title: Improvement in appliances for playing table games
IPC: A63D3/02
Filed: 1924-11-28
Abstract: 247,323. Pearl, G. W. Nov. 28, 1924. Table games. - A miniature figure representing a cricketer for use in table cricket has a bowling arm with an adjustable elbow joint. The figure is mounted on a flat base so as to stand upon the table The ball is held frictionally within a cup D. The two portions B, F of the arm may be adjusted to any desired angle in relation to one another and clamped together by a nut and bolt. The arm pivots on a pin E. In using the device an extension C of the arm is struck downwards by the player's finger so as to rotate the arm and discharge the ball.
Patent GB-279871-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1927-10-27
Abstract: 279,871. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, (Assignees of Rienks, W.). Oct. 27,1926, [Convention date]. Cutting slices in succession. - In a slicing- machine driven by an electric or other motor, the knife support and a casing for the transmission mechanism are so shaped as to be capable of being cast as a single unit, the casing extending from the knife support at the side thereof opposite to the slicing-station. As shown in Figs. 1 and 2, the plate 1 carries a bearing boss 2 for the knife shaft, and a ledge 3 which supports the slice plate, the boss 2 and the ledge 3 being joined by a rib 4 which limits. laterally the space between the boss and the ledge. The plate 1 and the rib 4 are extended beneath the ledge 3 and the plate 1 is extended at 8 beyond the rib 4, the extension 8 having a flange 9 to form a transmission gear casing. Ribs 6, intended to be secured to another part of the machine, extend rearwardly from the lower part of the back of the plate 1, and a rearwardlyprojecting rim or flange 7 merges into two of the ribs 6 and forms a casing for the chain transmission to the knife. The transmission gear within the casing 8, 9 comprises a belt and driving, driven and jockey pulleys, and is enclosed by a flat plate secured to the front of the casing.
Patent GB-1169508-A (GB)
Title: Process for Stabilizing Aqueous Formaldehyde Solutions
IPC: C07C45/86
Filed: 1968-06-14
Abstract: 1,169,508. Stabilizing aqueous formaldehyde solutions. SOC. ITALIANA RESINE S.p.A. 14 June, 1968 [15 June, 1967], No. 28588/68. Heading C2C. Aqueous formaldehyde solutions are stabilized by the addition as stabilizer to the aqueous formaldehyde solution of at least one tetra-azaphenalene. The preferred stabilizers are decahydro- 1,4,7,9b - tetra - aza - phenalene and derivatives thereof having the Formula I where R 1 , R 2  and R 3  are hydrogen, an aliphatic, cycloaliphatic or aromatic hydrocarbon radical or a group COR 4 , where R 4  is an aliphatic hydrocarbon radical preferably containing 1 to 4 carbon atoms. The stabilizer is preferably used to the extent of 0À05 to 1À0% by weight with respect to the formaldehyde solution. In the preferred embodiment the aqueous formaldehyde solution containing stabilizer in the above-mentioned quantity is maintained at a temperature exceeding 40‹ C., but lower than the boiling temperature at atmospheric pressure, for a period of time between 30 minutes and 20 hours. Aqueous formaldehyde solutions are thereby obtained which are stable over long periods of time at temperatures down to -10‹ C.
Patent GB-411735-A (GB)
Title: Improvements in or relating to a double-power braking mechanism
IPC: B61H13/32
Filed: 1933-10-16
Abstract: 411,735. Brakes. GALLUSSER, H., 47, Chemin de Moillebeau, Geneva, Switzerland. Oct. 16, 1933, No. 28602. Convention date, Sept. 9. [Class 103 (i).] Railway brakes in which the leverage can be changed for " light " and " load " braking comprises levers 4, 6 connected to brake rods 9, lever 6 being mounted on fixed pivot 7 and lever 4 being connected to brake piston rod 3. The levers 4, 6 are connected by a rod 12 and a two part rod 16, 17. For " load " braking the parts 16, 17 are free to move relatively and the levers 4, 6 pivot about the ends 10, 11 of the rod 12. For " light " braking the parts 16, 17 are locked together by a mechanism 18 operated by a lever 19, and the levers pivot about the ends 14, 15 of the rod 16, 17 and can move independently of the rod 12 by means of a slotted connection 13. The locking means for the parts 16, 17 comprises a coned nut 35, Fig. 2, threaded on part 16, and formed of several parts held together by a spring 36 and sealing on a coned seat in a box formed on the end of the part 17. During " light " braking the nut is held on its seal and the parts 16, 17 locked together by the pull due to braking. For " load braking an outer casing 18 is moved to the right by the lever 19 and engages a spring-pressed sleeve 26 with the projecting end of the nut 35 which it disengages from its seat. When braking takes place the rod 16 can now slip through the nut, the parts of which spring apart. The mechanism may be changed from " light " to " load " braking or vice versa, while the brake is applied.
Patent GB-1530039-A (GB)
Title: Removal of metals from solution
IPC: C01G1/00
Filed: 1976-07-09
Abstract: 1530039 Removing metals from solution BRITISH PETROLEUM CO Ltd 5 July 1977 [9 July 1976] 28631/76 Heading C1A [Also in Division C5] Heavy metals, transition metals and actinide metals may be removed from solution by contact with the product obtained by reacting an inorganic solid containing surface hydroxyl groups e.g. Al 2 0 3 , TiO 2 , ZrO 2 , glass, sepiolite or a zeolite in a first stage with a compound of formula:- (I) wherein R is a divalent organic group containing up to 20 C atoms, R' and R<SP>2</SP> are halogen atoms or organic radicals, Y is halogen or -OR<SP>3</SP> in which R<SP>3</SP> represents H, alkyl, aryl or acyl group containing up to 20 C atoms and X is halogen and reacting the product of the first stage at elevated temperature with a polyamine of formula:- wherein R<SP>4</SP>, R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> represent H, alkyl or aryl groups containing up to 20 C and may be the same or different, n = 1-5, m = 1-5 or a polyamine of formula
Patent GB-673009-A (GB)
Title: Improvements in or relating to loudspeaker assemblies
IPC: H04R1/32
Filed: 1949-11-08
Abstract: 673,009. Loud-speakers. WEST, R. L. Nov. 7, 1950 [Nov. 8, 1949], No. 28638/49. Class 40 (iv)..[Also in Group XXXVIII] A loudspeaker cabinet stands in the corner of a room with the loud-speaker facing the corner and directed .slightly upwards so that the centre line of the speaker when reflected from the corner just clears the top of the cabinet, whereby the high frequencies are diffused. The loud-speaker is loaded by a bass chamber 18 such as is described in Specification 447,749, and to avoid resonance, the cabinet is spaced from the walls either by the skirting or by distancepieces secured to the cabinet. Alternatively, a reflector simulating a corner may be secured to the cabinet.
Patent GB-962189-A (GB)
Title: Improvements in or relating to liquid moderator nuclear reactors
Inventor: COSTES DIDIER
IPC: G21C13/04
Filed: 1962-07-26
Abstract: 962, 189. Reactor pressure vessels. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 26, 1962 [July 27, 1961], No. 28738/62. Heading G6C. [Also in Division F2] A liquid moderated nuclear reactor is characterized in that its pressure vessel is protected against excess internal pressure by deformable means which yield under excess pressure to increase the vessel volume available for accomodating moderator. The object of this invention is to protect the pressure vessel (Fig. 1,) from damage as a result of bursting of pressure tubes 20 containing pressurized fuel and/or coolant. In all the embodiments described, the volumes enclosed by the deformable walls contain either gas, or sponge like pressure absorbents; these enclosed volumes may be open to the external air, or filled with pressurized gas. The deformable wall may be of any suitable material such as metal or plastics, and may be elastically or permanently deformed by a pressure rise. In addition to, or instead of the deformable wall 1, hollow deformable pressure absorbent cushions 4 may be suitably positioned within the reactor; they can be of cylindrical or spherical shape and may be made of materials such as stainless steel, aluminium, or zirconium alloy. The cushions are filled with gas, e.g. helium or CO 2  and may contain in addition solids and liquids which act as moderators or shields. The solids may be of voided structure to assist in energy absorbtion. Where substantial areas of the pressure vessel walls are separated from the cooling affects of the moderator, a water jacket may be fitted to the exterior of the pressure vessel walls (Fig. 6, not shown). Referring now to Fig. 7, the deformable wall is in the form of a complete inner vessel 2 containing the moderator 21. The vessel 2 has a number of regularly spaced orifices 27 therein, which are normally closed by a number of metallic bands 28 which are pretensioned by springs 29. Any small rise in moderator pressure results in the bands being lifted clear of the orifices until the moderator pressure is again normal. In the event of a large pressure rise, the bands will break. Specification 933,523 is referred to.
Patent GB-249773-A (GB)
Title: Improvements in or relating to means for securing railroad lines to sleepers
IPC: E01B9/18
Filed: 1925-11-16
Abstract: 249,773. Vagneux, E. F. L. Nov. 16, 1925. Sleepers, composite. - Cement sleepers have embedded therein a metal thread 33 which engages grooves in a wooden plug 25 receiving the rail screws, the play between the plug and its socket being filled by previously dipping the plug in some adhesive, waterproof and insulating substance. The thread 33 is of the Thiollier type. The hole in the plug is a blind hole, and to prevent swelling the plug may be impregnated, such as with transformer oil.
Patent GB-668818-A (GB)
Title: Improvements in or relating to self-tapping screws
IPC: F16B37/12
Filed: 1950-11-27
Abstract: 668,818. Self-tapping screws. KERBKONUS-VERTRIEBS GES. Nov. 27, 1950 [Aug. 11, 1950], No. 28893/50. Class 83 (iii). [Also in Group XXV] A bush with external and internal threads over its whole length has one or more slots 4 at one end over a tapered portion a and full-diameter portion b so that, on insertion into a plain hole, the bush has a self-tapping action and is also contracted inwards so that the bush itself, and a bolt or screw screwed into it, are locked in position. The slots extend past at least one full-form thread and the number of tapered threads is greater than the number of full-form threads; the internal and external threads may be of different types and pitches. Corrosion-protection may be applied to the bush and it may be case-hardened or fully hardened. The bush is inserted by screwing a bolt having a plain extension at its lower end into the internal threads and rotating the assembly by means such as a drilling machine.
Patent GB-900263-A (GB)
Title: Improvements in or relating to protective metal coatings
Inventor: GAERTNER GUSTAVE
IPC: C23C14/02
Filed: 1960-08-22
Abstract: A metal article is protected by successive layers of varnish, vapour-deposited chromium oxide and vapour-deposited aluminium. The chromium oxide layer is produced by evaporation of chromium in a low pressure atmosphere of oxygen.  The evaporation of the aluminium is preferably effected in a glow discharge in argon, and the edges of the article are preferably masked during the aluminium deposition. Any short circuits between the article and the aluminium layer are burnt out electrically.  A protective layer of silicon dioxide may be applied to the aluminium by evaporation of silicon in a low pressure atmosphere of oxygen with a simultaneous glow discharge.
Patent GB-173893-A (GB)
Title: Improvements in rippling machines for removing the seed pods off flax
IPC: D01B1/12
Filed: 1920-10-13
Abstract: 173,893. Stewart, J. C. Oct. 13, 1920. Rippling-apparatus.-The flax straw is held in a frame 15, Fig. 1, and the seeds removed by a pair of combs v carried by a frame t reciprocated by a crank n and connecting-rod o. The movement of the frame t closes and opens the combs as required to engage the flax and to disengage the combs. The connecting-rod o is coupled to links q which operate the bell-crank levers r, u carrying the combs. The degree to which the combs penetrate the flax at each stroke is regulated by a cam 3 rotated by a pawl 5, the upper arm r in the closed position resting against the cam. The carriage t is retarded at the commencement of the combing-stroke by arms 6 pressed outwards by springs 9 against plates 8. At the end of the return stroke, the arms which are mounted on universal joints 7 ride over the inclines on the plate 8. The combs are stripped by fingers 10 carried by arms 12 loosely mounted on the shafts s about which the combs are rocked. Extensions 13 on the arms 12 contact with the shaft y of the cam 3 during the opening of the combs and are held stationary whilst the combs continue to move. The fax bundles are held in recesses 18, Fig. 2, on a pivoted frame 15 by cords 19 secured by chains 21 to sprockets 22 carried by arms 23 pivoted to the frame and held in position by catches engaging ratchet teeth on a member 26. The frame 15 is rocked automatically to bring first one and then the other bundle of flax into position to be operated upon. The movement of the cam-shaft y is communicated to a second shaft in the carriage t on which are mounted cams, one each side of the machine, adapted alternately to lift members into engagement with lugs on a second sliding carriage connected to the frame 15 by cords, so that, at the required intervals, the second carriage is moved first in one direction and then in the other to rock the frame 15.
Patent GB-369979-A (GB)
Title: Improvements in or relating to methods of and materials for road construction
IPC: E01C5/16
Filed: 1930-09-26
Abstract: 369,979. Roads ; paving blocks. SMALL, F. G., 2, Meadow Road, Pinner, Middlesex. Sept. 26, 1930, Nos. 28929/30 and 17831/31. [Classes 87 (i) and 107.] A triangular metallic tripedal block for road surfaces, factory floors, &c. is constructed with short feet or projections 2 at the corners to rest directly on the foundation which is covered with asphalt o r like plastic material extending between the feet of the block and between the juxtaposed blocks. The block, Figs. 4 and 5, may be solid, or hollow with integral ribs 5 having the same depth at the sides, and the surface of the block may be formed with projections 3 or the sides and webs may project upwardly to provide recesses to receive asphalt, wood or other road surface material. Insets 7 of plain or coloured glass &c. can be illuminated to provide direction signals or facilitate traffic control. The block is preferably formed with upwardly tapering sides, and may be generally curved to suit the camber of the road or of varying thickness to form a cambered road surface when laid on a flat foundation as shown in Fig. 13.
Patent GB-158133-A (GB)
Title: Improvements in detachable fluid pressure pipe couplings
IPC: F16L29/02
Filed: 1919-11-21
Abstract: 158,133. McAneany, J. Nov. 21, 1919. Butt joints: with valves. - A detachable coupling for fluid-pressure pipes of the type fitted with an automatic valve at one end of a valve stem and a perforated disc at the other end, comprises a ferrule 2 fitted in the hose 1 of substantially uniform bore throughout but with a contraction or narrow portion 3 of convenient shape forming a seat for the valve 4, which is preferably spherical or conoidal. The perforated disc 6 fits loosely in a union nut 7 carried by the ferrule, and is preferably provided with an internally threaded boss 9, which may have recesses corresponding, to the holes in the disc 6, into which boss the valve stern 5 is screwed on assembly, slots 10 being provided in the valve 4 to facilitate screwing. When disconnected, the valve is closed by the fluid pressure, but on screwing up the union nut 7 the valve is forced off its seat by the end of the connection 8 engaging the disc 6.
Patent GB-475691-A (GB)
Title: Improvements in and relating to paper-making machinery
IPC: D21F1/48
Filed: 1936-10-24
Abstract: 475,691. Suction rolls for paper-making machines. JENNINGS, I. C. Oct. 24, 1936, No. 28972. Convention date, May 8. [Class 96] Suction apparatus for a paper - making machine consists in a perforated rotatable suction roll, a stationary suction box mounted therein in contact with the operating surface of the roll, means effective to maintain a vacuum within the suction box and means to apply a sealing vacuum at both longitudinal sides of the box. The first suction box in which, for example, a vacuum of twenty-five inches of mercury is to be maintained may be completely surrounded by an outer box in which an intermediate vacuum, e.g. of twenty inches is maintained. Thus, large amounts of the air and water are removed at the lower vacuum which enables maintenance of the higher vacuum with smaller equipment and reduces leakage and wear on the packing. If desired, the low vacuum pump may be used as a second stage pump for the high vacuum box. The suction roll comprises a perforated metal shell 10, e.g. of bronze mounted in bearings 12 and driven by gearing 13. A stationary suction box 14 is held in contact with the inner surface of the roll by springs 15 and the vacuum. Packing strips 17, 18 seal the side of the box, screws 19 providing adjustment to prevent excessive wear. Adjustable plugs 20 vary the effective width of the roll. The box 14 has two chambers 21, 22, one inside the other. Pump 23 maintains a vacuum in chamber 22 and pump 25 a higher vacuum chamber 21. Pump 25 may discharge to atmosphere through conduits 27, 28 or into pipe 24 to the intake of pump 23. Valves 29, 30 regulate its discharge. Pump 23 discharges to atmosphere and may utilize a separating tank 32 from which liquid from the suction roll may be removed by pump 33 or by a suitable water leg. More than two chambers may be used, nested one within another.
Patent GB-519901-A (GB)
Title: Improvements relating to road or other signs or signals
IPC: G02B5/126
Filed: 1938-10-07
Abstract: 519,901. Luminescent signs. LUCAS, Ltd., J., and NELSON, J. H. Oct. 7, 1938, No. 29079. [Class 39 (i)] A road or other sign consists of a lens c or reflector a having at its focus fluorescent material which is responsive to ultra violet radiation ; a multiple lens c, 'Fig. 3, has a fluorescent coating e on the back.