baber/WOPTO huggingface dataset:
Patent GB-153098-A (GB)
Title: The power increasing and fuel economising fly-wheel
IPC: F03G7/10
Filed: 1919-08-01
Abstract: 153,098. Krauss, A. Aug. 1, 1919. Fly-wheels consist of a pair of disks C and a rim B, the disks carrying arbors D supported in bearings. On the inner side of each disk is a spiral flange I increasing in depth outwards and so arranged that the lowest point of each whorl is eccentric to the vertical axis of the wheel. On these flanges run stepped cones M, carrying weights K which tend to fall towards the said lowest points and thus rotate or assist in rotating the wheel. When such weight reaches the outer end of the spirals, it falls past spring-pressed gates N to the centre. Any number of such fly-wheels may be mounted side by side, and any number of weights may be arranged in each. Such wheels are particularly useful with motors having periodic power strokes, such as fourstroke internal-combustion engines.
Patent GB-238371-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/00
Filed: 1924-08-11
Abstract: 238,371. Petersime, I. M. Aug. 11, 1924. Hatching-appliances.-The eggs are held in compartments in shallow trays ,7 formed by top and bottom screens 9, 8 and provided with transverse partitions 10. The trays are placed on and secured to superposed partitions 6 extending between the end discs 4 of a drum 3 which may be rotated within an incubator casing 1 by a handle 11 to turn the eggs. A stirring device 22 for the air in the incubator comprises horizontal blades 24 mounted on arms 23 which may be rotated about the shaft of the drum by a belt drive 26 from an electric motor 12. The egg trays during the last days of hatching are transferred to an upper compartment 28 where they are maintained stationary. The heating device is inserted through an opening 30 in the bottom of the casing.
Patent GB-498485-A (GB)
Title: Methods of coating magnesium or alloys containing a magnesium base
IPC: C25D11/00
Filed: 1937-07-09
Abstract: 498,485. Electrolytic surface treatment of magnesium and its alloys. BUZZARD, R. W. July 9, 1937, No. 19090. Convention date, July 28, 193.6. [Class 41] A coating is formed by applying to the metal A.C. or, as anode, D.C., in a bath comprising an aqueous alkaline solution, e.g. of sodium hydroxide or sodium carbonate, and potassium permanganate or sodium chromate. The bath may contain also water-soluble silicates or sulphates or both. Example: (1) sodium hydroxide (or sodium carbonate) and potassium permanganate, (2) the carbonate, chromate, fluoride and silicate of sodium. Reference is made to Specifications 459,017 and 491,025. The Specification as open to inspection under Sect. 91 refers also to the use of fluorides, phosphates, sodium bichromate and sodium silicofluoride. This subject-matter does not appear in the Specification as accepted.
Patent GB-832220-A (GB)
Title: Wax compositions and self-gloss emulsions produced therefrom
IPC: C09G1/08
Filed: 1956-06-21
Abstract: A wax composition comprises by weight 5-25% paraffin hydrocarbons, 18-64% carboxylic acids and 15-75% esters and/or alkali metal salts of the carboxylic acids, all having more than 30, preferably not less than 40, carbon atoms in the molecule. The esters are preferably derived from dihydric alcohols with not more than 4 carbon atoms. They may be used for the preparation of self-gloss emulsions by emulsifying with water and ionogenic or nonionogenic emulsifiers.  In examples, emulsions are prepared containing oleic acid and triethanolamine, or a commercial emulsifier.  An aqueous shellac solution is also added in one example.  The wax composition may be prepared by subjecting one or more aliphatic hydrocarbons containing more than 30 carbon atoms to chlorination, dehydrochlorination, the oxo synthesis, hydrogenation, alkali fusion and treatment with mineral acid to yield a mixture of carboxylic acids and hydrocarbon, the chlorination being effected so as to add between 1.5 and 4 gram-atoms of chlorine per mol. of hydrocarbon, and the acid/hydrocarbon mixture being treated to esterify and/or convert into alkali metal salts 20-80% by weight of the acids.
Patent GB-137765-A (GB)
Title: Improvements in chucking and turning machines and the like machine tools
IPC: B23Q5/52
Filed: 1919-08-05
Abstract: 137,765. Butterworth, A., Butterworth, A., and Butterworth, H. Aug. 5, 1919. Driving machines.-Machine tools such as lathes, in which the spindle is stopped after a predetermined number of revolutions, have a lostmotion device incorporated in the clutch-operating mechanism to permit re-engagement of the latch by hand without further previous rotation of the spindle. The shaft 11 is geared to the spindle and carries a dog sleeve 10 connected to the shaft by a spring 12 that causes displacement to the position shown by dotted lines immediately the lever 7 has been shifted to throw out the clutch. The hand-lever 6 is preferably arranged parallel to the lever 7.
Patent GB-1476241-A (GB)
Title: Arc-extinguishing materials
IPC: H01H33/76
Filed: 1974-05-02
Abstract: 1476241 Arc-rupturing in switches SQUARE D CO 2 May 1974 [29 May 1973 (2)] 19256/74 Heading H1N [Also in Division C3] An arc-extinguishing material, to be arranged so as to be exposed to the arc in an arc-producing electrical device, e.g. as an arc shield, an arc chute frame casing, or an arc chamber coating, consists of at least one non-toxic compound of Ag, Pt, Au, Ta, Cu, Co, Re, W, B, Pd, Sb, Te, Zn or Se, said compound(s) being decomposable by the arc to give non-toxic products at least one of which has an affinity for electrons and containing no elements of first ionization potential less than that of silver (7À54 eV), optionally with a high-molecular weight binder, the material having an atomic concentration of carbon not exceeding 15%. An exemplary material consists of 55À8 wt. per cent of a commercial hydrated zinc borate and 44À2 wt. per cent of a commercial polydimethylsiloxane binder.
Patent GB-897665-A (GB)
Title: Process for the manufacture of chlorohydrin modified phenol formaldehyde resins
IPC: C08G8/28
Filed: 1958-06-16
Abstract: Esterified, chlorohydrin-modified phenol-formaldehyde resins are prepared by:- (a) reacting 1 mole of a monohydric phenol with 1-3 moles of formaldehyde in an alkaline solution containing 1 mol. of alkali metal hydroxide (e.g. NaOH) per mol. of monohydric phenol, (b) condensing the phenol alcohol thus obtained with not more than 1 mol. of epichlorhydrin (or a chlorinated derivative of trihydroxy propane which gives epichlorohydrin in alkaline solutions, e.g. a -dichlorhydrin) per mol. of monohydric phenol, (c) esterifying the substance thus obtained, which is substantially free of epoxy groups, with a fatty acid containing more than 8 C, and (d) dehydrating the product which is still free of epoxy groups by heating it in the presence of an acid catalyst; steps (c) and (d) being carried out either simultaneously or in either order; and if step (c) precedes step (d) the proportion of fatty acid should be less than one mol. per hydroxy group of the substance in step (c).  The phenol is preferably a para-substituted phenol, e.g. p-tert. butyl phenol. Steps (c) and (d) are preferably carried out in the presence of an entrainer, e.g. xylene, catalysts specified being p-toluene sulphonic, benzene sulphonic, phosphoric, butyl phosphoric, oxalic, and boric acids and ZnCl2.  The acids used in step (c) may be derived from drying or non-drying oils; if the former, e.g. linseed or dehydrated castor, the resins may be dried with Co and Pb naphthenates; if the latter, the resins may be oven-baked with urea or melamine resins.  The resins are soluble in aliphatic hydrocarbons, e.g. benzine.
Patent GB-121791-A (GB)
Title: Internal Combustion Engine.
Inventor: HOGAN JOHN JOSEPH
IPC: F01L7/02
Filed: 1917-12-31
Abstract: 121,791. Hogan, J. J. Dec. 31, 1917. Valves.-In a two-stroke-cycle engine having a compression chamber 3, Fig. 1, below the cylinder 4, the admission of gases to the chamber 3 and to the cylinder 4 is controlled by a single rotary valve 19 driven at half the crank-shaft speed. Just after the piston 5 has commenced its power-stroke, the valve 19 opens the fuel pipe 17 to a passage 29 leading to the chamber 3. At the end of the power-stroke, the fuel pipe 17 is closed, and, when the piston has travelled far enough on its compression stroke to close the exhaust port 16, the valve 19 opens communication between the passage 29 and the admission port 18. The valve 19 closes the port 18 shortly before the end of the compression stroke. In order to permit adjustment of the valve 19 relatively to the port 18, the valve spindle 20, Fig. 2, is supported in bearings 21 carried by set-screws 22 provided with lock-nuts 25.
Patent GB-1382211-A (GB)
Title: Hospital bed
IPC: A47C19/02
Filed: 1973-04-24
Abstract: 1382211 Buffers JOH STIEGELMEYER & CO GmbH 24 April 1973 [18 May 1972] 19313/73 Heading A4U A hospital bed comprises a frame 1 to which are fixed holders 3 having recesses, and a rail 7 having flanges 6 snap-engaged in the recesses and supporting a resilient buffer 10. The holders 3 are formed of synthetic plastics material and are secured to the frame 1 by self-tapping screws as shown or by rivets or resilient tongues. The rail 7 is of metal, and the buffer is of rubber or synthetic plastics material and it has projections 9 engaging in grooves 8 in the rail 7 and tongues 12 for resiliently engaging a web 13 of the rail.
Patent GB-888336-A (GB)
Title: Clutch release mechanism
Inventor: CAMP JOHN WALTER ALDRIDGE
IPC: F16D23/12
Filed: 1959-06-05
Abstract: 888,336. Gearing for stopping and starting machinery. FORD MOTOR CO. Ltd. May 5, 1960 [June 5, 1959], No. 19330/59. Class 80 (2). To reduce the friction between the parts when a clutch release lever 12 slides a clutch throw-out bearing 6 axially of a tube 3 fast with a housing 1 to pivot the usual radial levers 7, a curved link strip 8 having its ends 9 bent inwardly to form legs, these having their opposite edges of curved cross-section, is positioned with the leg edges in oppositely-disposed V-shaped notches 10, 11 in a flanged plate 5 fast with the thrust bearing 6 and at the end of the release lever 12, respectively. A spot-faced boss 14 in the clutch housing 1 provides a surface over which a bearing edge of the release lever 12 rolls during operation, a wire clip 15 holding the release lever so that a hole therein engages freely with a partspherically surfaced stud 13 fast in the spotfaced boss. Admission of fluid under pressure to a slave cylinder 16 slides a connecting-rod 17 carrying an adjustably positioned nut 18 abutted by a rolling surface on the release lever 12 for clutch disengagement, the lever moving against the bias of a spring 20. A spring clip 21 holds the link strip 8 between the flanged bearing- plate 5 and the release lever 12.
Patent GB-459187-A (GB)
Title: Improved humane rabbit trap
IPC: A01M23/26
Filed: 1935-07-08
Abstract: 459,187. Animal traps. DAVIS, J., Southwood Lodge, Arundel Park, Sussex. July 8, 1935, No. 19386. [Class 5 (i)] A trap for rabbits and the like comprises two semicircular arms h, i connected together at one end by a metal link secured to a chain lc which passes through an aperture f in a flat bar e on a stirrup d fastened to a blade spring b. The arrangement is such that on tilting a pivoted tread-plate q, a catch n is released and the spring b moves upwardly, raising the arms h, i to the full length of the chain k and closing them together about an animal so as to crush it in the region of the heart. The animal is thus caught at whatever height it may jump from the ground. The chain is secured to a base plate a by a fastening l such that the length of the chain is adjustable. The base plate a is secured to a spring c fastened to the spring b. A slotted tooth r on the tread-plate q engages the catch n in the set position.
Patent GB-692128-A (GB)
Title: Improvements in electric hot plates
IPC: H05B3/70
Filed: 1951-08-17
Abstract: 692,128. Electric hot-plates. GOODWIN, S. Aug. 17, 1951, No. 19415/51. Class 39(iii) A hot plate comprises a flat cast plate 1 of aluminium, magnesium, copper or their alloys having an electric heater 4 clamped on or cast in its lower surface adjacent one end. The plate tapers stepwise in thickness towards the opposite end 6 and has edges projecting downwardly beyond a frame e.g. of asbestos cement on which it is mounted. The frame may be of metal with a shallow depression covered with a layer of heat insulating material and is secured to the plate by screws threaded through insulating washers so as to provide an air gap between the plate and the frame. The elements 4 may be of strip form, or of' sheathed wire type cast in the plate, the temperature of which decreases towards the thinner end 6. The insulator of the sheathed wire heater may be a ceramic formed by heating aluminium salts.
Patent GB-772616-A (GB)
Title: Improvements in or relating to gas filled discharge devices
Inventor: LAKE RONALD ERNEST
IPC: H01J17/56
Filed: 1954-07-02
Abstract: 772,616. Thermionic valves. ENGLISH ELECTRIC VALVE CO., Ltd. April 1, 1955 [July 2, 1954], No. 19431/54. Class 39(1). A gas-filled discharge tube having anode 4, control grid 3, cathode 1, and a grid sputter shield 6, has two tapered members one within the other forming a double funnel structure for focusing the discharge between the cathode and grid. In the form shown, the cathode heat shield 2 has a conical extension 2a which forms the outer part of the funnel structure, the inner part being formed by a conical member 7 closed at its smaller end. Material sputtered off the cathode is largely intercepted by the ring 2b and the closed face of member 7. The two conical surfaces re-focus the discharge on to the grid, so that no increase in the trigger voltage is caused. The tube may be a hydrogen thyratron, firing at or below a grid trigger voltage of 150.
Patent GB-775682-A (GB)
Title: Improvements in or relating to the manufacture of concrete building blocks
Inventor: KNELIER EDWARD ALEC FREEMANTLE
IPC: B28D1/22
Filed: 1954-07-02
Abstract: 775,682. Splitting stone &c. SELLECK, NICHOLLS & CO., Ltd. June 23, 1955 [July 2, 1954], No. 19462/54. Class 124 A machine for forming blocks from rectangular slabs of stone or concrete comprises a slab supporting platform, four straight knives in rectangular co-planar formation, opposed knives being relatively movable towards each other and hydraulic means to effect the relative movements simultaneously to cause a block to split away from the slab along the lines of knife pressure. As shown, a block 30 of concrete is fed on to a table in front of which are two horizontal knives 4, 5 and two vertical knives 6, 7. A portion of the slab extends through the rectangle formed by the knives and hydraulic power supplied to the vertical knives 6, 7 and the horizontal knife 5, the knife 4 supported by a cross head 10 adjustable on columns 15 acting as an anvil, moves them into contact with the slab and the inward pressure causes a block to be split away from the slab. The block produced has a rough finish bounded by four straight smooth edges. The hydraulic system may include a safety pressure valve and an electric safety switch operating on an electric motor driving the hydraulic pressure pump may also be provided. The slab may be fed into position by means of a roller feed path and a thrust plate operated by a fourstart screw.
Patent GB-720540-A (GB)
Title: Improvements in or relating to electric high-vacuum discharge tubes
IPC: H01J35/04
Filed: 1951-08-17
Abstract: 720,540. X-ray tubes. SIEMENS-REINIGERWERKE AKT.-GES. Aug. 17, 1951 [Aug. 19, 1950], No. 19470/51. Drawings to Specification. Class 39 (1) A supporting member for a rotatable electrode such as the rotary anode of an X-ray tube is secured in a cup-shaped holder, which is itself sealed to a glass part of the enevelope, by a force applied to the electrode. In one form, the electrode and supporting member are pushed into position, an annular groove in the support engaging with a corresponding groove in the holder. In another form, the electrode and support are temporarily locked together by a rod passing through a bore in the electrode, and the assembly screwed into the holder. The securing of the electrodes and support in the tube is thus established without the use of heat, which would cause the previously degassed electrode to take up further heat.
Patent GB-147671-A (GB)
Title: Core drill for mining work
IPC: E21B10/02
Filed: 1920-07-08
Abstract: 147,671. Stapf, A., and Hundrieser, H. Feb. 26, 1917, [Convention date]. Bore-hole apparatus.-In a core drill, cutters care adjustably supported by members k held in slots f extending completely through the wall of the drill tube a. In the form shown in Figs. 1 and 2, the members h and slots f are correspondingly indented; the members k are locked by means of screws i and members h engaging the inner side of the drill tube. In the form shown in Fig. 3, the members k and slots f have a rib and groove connaxion, and adjustment is effected by screws l; the various members k may be connected bv an inner ring so that simultaneous adjustment may be obtained.
Patent GB-613764-A (GB)
Title: Improvements in bracken cutting apparatus
IPC: A01D34/28
Filed: 1946-07-02
Abstract: 613,764. Bracken cutters. WOODMAN, E. J. July 2, 1946, No. 19685. [Class 6 (iii)] Relates to bracken cutters of the type having two blades arranged as a V-shaped cutter for drawing over the ground. According to the invention, the frame for the cutter comprises a longitudinal member 2 supported at the rear on a tail skid 12 and at the nose end on a pair of skids 7 bent upwards at the front end to raise the blades 1 clear of the ground. The blades are angularly adjustable about bolts. According to the Provisional Specification the front skids have a portion of their length lying parallel to the longitudinal member.
Patent GB-1100947-A (GB)
Title: Decorators ceiling and wallpaper support tray
IPC: B44C7/06
Filed: 1965-05-10
Abstract: 1,100,947. Decorators ceiling and wall paper support tray. T. B. GORE. 18 June, 1965 [10 May, 1965], No. 19729/65. Heading B6G. [Also in Division A4] A decorators ceiling and wall paper support tray comprises a tray with open sides, having a back plane surface with four holes in it placed for the attachment of two tapes, the front of the tray being curved away from the back and the two tapes being threaded through the holes and along the back of the tray. The tray can be fabricated from any moulding compound or in metal or wire. The tray is attached to the front of the person by securing the upper and lower tapes around the neck and waist respectively thereby leaving free use of the hands during application of the paper.
Patent GB-586803-A (GB)
Title: Improvements in free-wheel hubs for cycles and other machines
IPC: F16D41/30
Filed: 1944-10-12
Abstract: 586,803. Free-wheel arrangements. SCHWINN. F. W. Oct. 12, 1944, No. 19730. Convention date, June 15. [Class 136 (ii)] [Also in Group XXIV] A free-wheel hub for cycles or other machines comprises a tubular hub-body 14 having a counterbore 52, mounted within which and complementary thereto is a tubular race-and-pawl support 55, having a bore for pass:ng an axle 13 and rotatably carrying a sprocket-supporting member 72, pawl-and-ratchet means 64, 73 serving to effect a uni-directional drive between the support and member, and a plurality of sprockets 95-97 being provided on said member The hub has an axially extending cylindrical wall at each end for receiving anti-frictional bearings 23, 123 and this wall supports an oilsealing ring 25. The tubular portion of the support 55 is threaded into the counterbore 52 and the sprocket-supporting member 72 is of .polygonal cross-section to engage within similarly shaped apertures in the sprockets 95-97.
Patent GB-1110865-A (GB)
Title: Manufacture of pyridines
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/14
Filed: 1966-05-04
Abstract: Pyridine or substituted pyridines are made by interacting glutaraldehyde, a substituted glutaraldehyde or a precursor thereof in the liquid phase with ammonium ions or ammonia in the presence of molecular oxygen and cupric ions, the partial pressure of oxygen being at least 15 lb/square inch.  Suitable precursors are, for example, the cyclic enol-acetals of glutaraldehyde and substituted glutaraldehyde e.g. 2 - alkoxy - 3,4 - dihydro - 2H - pyrans, particularly those in which the alkyl group contains up to 6 carbon atoms.  The ammonium ions may be introduced in the form of an ammonium salt.  The reaction mixture may comprise water and/or an organic solvent, in particular an alkanoic acid.  The cupric ions are preferably introduced in the form of a cupric salt but may be produced in situ by the oxidation of a cuprous salt.
Patent GB-1144349-A (GB)
Title: Improvements in combined external and internal shoe drum brakes
IPC: F16D53/00
Filed: 1966-05-05
Abstract: 1,144,349. Combined external and internal shoe drum brakes. SOC. ANON. FRANCAISE DU FERODO. 5 May, 1966 [6 May, 1965; 12 Nov.. 1965], No. 19872/66. Heading F2E. A combined external and internal shoe drum brake comprises a floating U-shaped stirrup 12, which both surrounds the drum 10 and an assembly consisting of outer and inner shoes 13, 14, and a cylinder 19 formed in a support 11 which is fixed by its legs 15 to an axle journal within the drum, the stirrup being slidable in a radial direction so that when fluid is supplied to the cylinder between a pair of pistons 20, 21, shoe 14 is applied directly by the piston 20 and shoe 13 by the reaction transmitted through the stirrup by the piston 21. In the embodiment shown, the stirrup is guided by a U-shaped rod 30 which is passed through apertures in a pair of U-shaped extensions (17, Figs. 1 and 2, not shown) of the support 11 on opposite sides of the stirrup and through a slot 31 in the stirrup. The extensions (17) are arranged to engage the ends of both shoes to absorb the braking force. Shoe 14 has a locating recess to engage the piston 20, while shoe 13 is pivotally mounted at 28 to the stirrup. The drum is formed with a number of apertures 35 which both ventilate the drum and also enable removal of the shoe 14 through any one of them. The drum is also provided with an aperture (36, Fig. 4, not shown) for access to the fluid inlet connection (22) to the cylinder. In a second embodiment (Figs. 5-8, not shown), a radially arranged shaft (54) is used to mount the stirrup (12) on the support (11), the shaft being in the form of a long bolt which is passed through an aperture in the outer arm (27) of the stirrup, through apertures in lugs (50) of backing plates (53) of the pads (13), (14), through a bore (61) drilled in the support (11), and is screwed into a tapped aperture in the inner arm (25) of the stirrup. As a result, the pads can be replaced without the need for openings in the drum, since the stirrup is dismantled at the same time as the pads are freed by removing the shaft (54). The apertures in the lugs (50) of the pad backing plates are sufficiently large to enable the whole of the braking torque to be absorbed by the support (11). The arms (25), (27) are preferably set at an angle to each other of about 30-45 to allow for conicity of the drum during heavy braking. The piston and cylinder assembly is made more compact by fitting the sealing rings (23) for the pistons in grooves in the pistons instead of in grooves in the cylinder. The drum is secured to a plate (33) which is in turn secured to a hub (41) which carries a clamp (43) to which the support (11) is secured. The disc (33) carries wheel studs (60) at an intermediate radius. A flexible plastic rod (70) having a magnetic powder core is arranged to wipe the drum surface as the drum rotates to pick up iron dust. Lining dust can escape through apertures (62) in the drum.