baber/WOPTO huggingface dataset:
Patent GB-1390990-A (GB)
Title: Device for dividing a fluid flow into predetermined proportions
IPC: F15B11/22
Filed: 1972-04-12
Abstract: 1390990 Hydraulic presses VABYMA AB 12 April 1972 [14 April 1971] 16962/72 Heading B5F [Also in Divisions F1 and G3] Hydraulic motors F1, F2 for moving a press tool are moved in synchronism by proportioning the flow through lines 41, 42 connected to the motors, the proportioning being effected by a valve 5, 6 controlling the simultaneous flow into or out of the lines 41, 42 in response to the difference in the actual flows through the lines as detected by flow gauges 1, 2. The flow gauges are in the form of hydraulic motors having output shafts 7, 8 driving, respectively, worm-wheels 3, 4. The worm-wheel 4 is fixed to a shaft 30 connected to the valve member 5 and the worm 3 is screwed on to the shaft 30. Thus unequal flow through the gauges 1, 2 causes axial displacement of the shaft 30 and consequential movement of the valve member 5 to cause throttling of the line 41 or 42 receiving or discharging the greater flow. A system of non-return valves 10, 11 ensures uni-direction flow through the gauges 1, 2 irrespective of the direction of flow in the lines 41, 42. In the event of one motor lagging the other, limit switched 12, 13 are not operated simultaneously. This causes a valve 14 or 15 to be opened whereby the corresponding motor completes its stroke, the fluid supplied flowing through a shunt passage 61 or 62 and thereby by-passing the flow gauges.
Patent GB-1093586-A (GB)
Title: Improvements in hydraulic transmission devices
IPC: F16H39/02
Filed: 1965-04-22
Abstract: 1,093,586. Hydrostatic transmissions. SOC. ANON. DES ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR. April 22, 1965 [April 24, 1964], No. 17053/65. Heading F2C. [Also in Division F 1 ] A hydrostatic transmission incorporates an accumulator comprising two deformable members, such as pistons, subjected to the pressures at points adjacent the pump outlet and motor inlet respectively. As shown a reciprocating pump 2 delivers to a motor 10 through a pipe 8 and the accumulator includes small and large piston-cylinder units 12, 11 and 15, 13 connected to points A, B just downstream of the pump delivery valve 9 and just upstream of the motor inlet 10 respectively. The space between pistons 12, 15 is filled with gas, the capacity being increased if desired by a chamber 34. In a second form, Fig. 2 (not shown), the small piston 12 is replaced by a flexible diaphragm, and in a further arrangement, Fig. 3 (not shown), the large cylinder 13 is replaced by three small cylinders arranged in series with check valves and pistons arranged to come into operation successively as the pressure rises.
Patent GB-821934-A (GB)
Title: Improvements relating to gate assemblies
Inventor: ALDRIDGE EDGAR MAXFIELD
IPC: E06B11/02
Filed: 1955-06-14
Abstract: 821,934. Gates. ELWELL Ltd., J. June 12, 1956 [June 14, 1955], No. 17108 /55. Class 45. [Also in Group XXV] A gate assembly comprising a gate and gate posts is provided at either end with releasable hinges permitting hinging about either post, while normally preventing the concurrent release of both ends of the gate. In an application the gate carries lugs 13, 13<SP>1</SP> pivotally engaged with hinge pins 17, 17<SP>1</SP> carried on bars 18 which are axially slidable in the gate post by the rotation of a cam handle 24. The lowering of the bar at one post will, if the bar at the other post is in its raised position, disengage the hinge at that post to permit pivoting to occur about the other. The lugs 30 prevent the lifting of the gate from its hinges except when the gate has been lowered bodily by the lowering of both bars. Each gate post is of I section and has a cover plate 15 secured between the flanges to provide a box section to accommodate the control gear. In another embodiment the movable bars and their control gear are carried on the ends of the gate, and the hinge pins engage with lugs on the gate post.
Patent GB-201158-A (GB)
Title: Improvements in boilers for hot water or steam central heating systems
IPC: F24H1/32
Filed: 1923-07-02
Abstract: 201,158. Demoulin, U. July 20, 1922, [Convention date]. Sectional boilers are constructed from radiator elements connected up and joined at one end to the cold feed and the other to the delivery. Elements of the kind usually employed for radiators for heating buildings may be employed. In the preferred arrangement an upper series 1 is supported by a lower series 2 and the elements are disposed symmetrically on either side of the fuel feed space 19 and the grate 15. In any arrangement, the inlet and outlet pipes are placed one above the other and both at rightangles to the boiler front, the elements being disposed on either side.
Patent GB-650723-A (GB)
Title: A method of repairing electron discharge devices
IPC: H01J5/30
Filed: 1947-06-30
Abstract: 650,723. Thermionic valves. STIVIN, J. June 30, 1947, No. 17170. Convention date, Aug. 5, 1946. [Class 39 (i)] An electron discharge device of the kind having a metallic envelope portion such as an external anode 7 is opened in order to effect internal repairs by severing the metal portion as at 11, the parts being subsequently re-sealed by a hard metallic ring 17 with upper and lower knife-edges which are forced into the softer anode portions, as described in Specification 640,252. Subsequent heat treatment after evacuation improves the seal, and the ring may be covered with tin or solder 10. An arrangement of beams 19, 19<SP>1</SP> and screws 18 may be used to force the ring into the metal envelope. If the required repair is a filament replacement, the grid may be first removed by cutting its support rods as at 12, these being subsequently re-welded, or joined by molybdenum collars 14 with set-screws 15. A hole 21 is drilled for evacuating the repaired device, which may be effected by using the attachment 22, 23 described more fully in Specification 640,252.
Patent GB-691608-A (GB)
Title: Improvements in compounding rubber
Inventor: BURRIDGE KENNETH GEORGE
IPC: C08L21/00
Filed: 1950-07-11
Abstract: Synthetic rubber, exemplified by butyl rubber and copolymers of butadiene with compounds such as styrene or acrylonitrile having a H2C=C< group copolymerizable with butadiene, including copolymers of butadiene and styrene which contain a high proportion of styrene, is mechanically worked at elevated temperature to form a hot plastic mass, wet lignin floc obtained by precipitation of lignin from a solution thereof is added, and the lignin is distributed in the rubber by continuing the working until the water has evaporated. Other compounding materials may be incorporated with the rubber simultaneously with the lignin floc; a wet coagulum of lignin floc containing occluded pulverulent compounding material, e.g. carbon black, for incorporation into the rubber may be made by forming a dispersion of the compounding material in aqueous alkali metal or ammonium lignate solution and precipitating the lignin from the solution.ALSO:Rubber is mechanically worked at elevated temperature to form a hot plastic mass, wet lignin floc obtained by precipitation of lignin from a solution thereof is added, and the lignin is distributed in the rubber by continuing the working until the water has evaporated.  Other compounding materials may be incorporated with the rubber simultaneously with the lignin floc; a wet cougulum of lignin floc containing occluded pulverulent compounding material for incorporation into the rubber may be made by forming a dispersion of the compounding material in aqueous alkali metal or ammonium lignate solution and precipitating the lignin from the solution.  The rubber may be natural rubber or a synthetic rubber, e.g. a copolymer of butadiene with styrene or with acrylonitrile, or butyl rubber. According to an example, lignin powder was dissolved in aqueous caustic soda, a lignin floc precipitated from this solution by adding acetic acid, and the floc concentrated by centrifuging, washed, and again concentrated to a 20 per cent. paste; 175 parts of this paste were incorporated into 100 parts of rubber which had been rendered hot and plastic by working on a roller mill, and working on the roller mill was continued, for about 1 hour, until the water had evaporated; sulphur, mercaptobenzothianzole, zinc oxide and stearic acid were then milled into the rubber-lignin mixture and the resulting compound was moulded and vulcanized
Patent GB-1392857-A (GB)
Title: Door seal for a microwave oven
IPC: H05B6/76
Filed: 1972-04-14
Abstract: 1392857 Microwave ovens MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 April 1972 [19 April 1971] 17420/72 Heading H5H The door seal of a microwave oven includes a quarter-wavelength choke cavity 4 and an insulating coating 9 to prevent sparking between the contacting metallic surfaces 3, 5. Ferrite-loaded rubber 7 absorbs any escaped attenuated microwave energy, a polypropylene cover 8 protecting the surface of the rubber 7 from contamination by food. The coating 9 is anodized aluminium and may be infilled with insulating material, Fig. 3 (not shown). The choke cavity and insulating coating may be on the oven cavity surround which the door engages, or one on each contacting surface, Fig. 4 (not shown). The oven has the usual door switch (not shown).
Patent GB-477158-A (GB)
Title: Improvements in cocktail and like cabinets
IPC: A47B81/04
Filed: 1936-06-23
Abstract: 477,158. Cabinets. BETJEMANN & SONS, Ltd., G., and ANDREW, H. V. June 23, 1936, No. 17452. [Class 52 (i)] A cellarette in the form of a wheeled trolley 14 is housed in the interior of a cabinet 1 and enclosed by doors 8.
Patent GB-1420218-A (GB)
Title: Electric switch
IPC: H01H11/00
Filed: 1972-04-15
Abstract: 1420218 Mounting contacts LUCAS ELECTRICAL CO Ltd 11 April 1973 [15 April 1972] 17489/72 Heading H1N In an electric switch, the fixed contacts 13a, 13b, 13c are adhesively bonded to a body part 12 and have integral portions 25, 26, 27 extending from the body 12 for making electrical connections. In the embodiment shown a movable contact 17 pivots on an integral lug 15 of the contact 13b for selective engagement with contacts 13a, 13c at each end. The contacts may be formed from an integral flat strip 20 Fig. 3 adhesively secured to the base 12 prior to the removal of connecting lugs 21, 22 as by punching through apertures 23, 24 and bending down the integral terminal portions.
Patent GB-292914-A (GB)
Title: Improved process of and apparatus for swaging dental plates
IPC: A61C13/00
Filed: 1928-06-18
Abstract: 292,914. Charlier, M. June 25, 1927, [Convention date]. Teeth, artificial. -A dental plate of high resistance metal such as rustless steel is hammered to shape on a metal die on which it is held by an adjustable clamping lever with an interposed mass of soft metal such as lead or tin on which the hammering proceeds from the centre towards the periphery of the die. The die 11 is mounted on the base 1 and the dental plate 14 roughly hammered to the shape of the plate is laid thereon and held by the end 4 of a lever 3 pivoted at 5 to a pedestal 2 and forced down by a nut 8 working on a screw 7 extending through a slot 6. The interposed soft metal is in the form of a strip 12 which at the beginning of the operation is wound into a single coil at the end and clamped between the flattened end 4 and the dental plate 14; successive coils are wound as the hammering proceeds from the centre outwards. The soft metal may be used in the form of a plate of the size of dental plate to be swaged instead of in strip form. Plates such as 13 of various shapes are interposed under the end 4 of the clamping lever.
Patent GB-981685-A (GB)
Title: Process for the production of alkylgallium compounds
IPC: C07F5/00
Filed: 1961-05-15
Abstract: Trialkylgallium compounds are prepared by reacting one mol. of a trivalent gallium compound other than gallium trifluoride, with at least three mols. of a trialkylaluminium compound or an etherate thereof.  The trivalent gallium compound is preferably free from water of crystallization of solvate: specified examples include the trichloride, tribromide, triiodide, sulphate, phosphate and acetate. Either or both reactants may be dissolved in a solvent prior to reaction, suitable solvents being aliphatic and/or alicyclic hydrocarbons and/or ethers.  Pentanes, hexanes, heptanes, octanes, methylcyclopentane, cyclohexane, methylcyclohexane, decalins, diethylether, isopropylether, tetrahydrofuran and dioxane are specified. Trialkylgallium compounds and/or dialkylaluminium compounds may also be used as solvents.  The product trialkylgallium compound may be fractionally distilled under reduced pressure from the reaction mixture.  If desired, the excess trialkylaluminium compound may be complexed with, e.g., sodium fluoride or potassium chloride. Specification 920,146 is referred to.
Patent GB-102621-A (GB)
Title: Improvements in or relating to the Detection of Earth Connections in Electric Cables.
Inventor: GILES GEORGES
Filed: 1916-12-07
Abstract: 102,621. Giles, G. Dec. 9, 1915, [Convention date]. Transformers.-The Specification as open to inspection under Sect. 91 (3) (a) describes a transformer consisting of a short piece of cable a placed symmetrically within an annular core h, the secondarv of which is connected to an ammeter k to indicate when balance in a three-phase system is disturbed bv an earth connexion. The conductors b, c, d of the cable are separated and led to insulated terminals e, f on a metal frame g. This subject-matter does not appear in the Specification as accepted.
Patent GB-1375138-A (GB)
IPC: A43D3/02
Filed: 1973-04-12
Abstract: 1375138 Lasts DR ING FUNCK KG 12 April 1973 [4 May 1972 15 June 1972] 17631/73 Heading A3B A last 1 which is particularly suitable for use in automatic shoe making and/or conveying machines includes a neck 3 which is provided with retaining elements for the detachable clamping of the last in the machine and with projecting marks corresponding to the particular characteristic values of the last (e.g. size, width, shape and the like) for the automatic setting up of the machine. In a first embodiment (Fig. 1) a one piece last 1 has a neck 3 which is provided with notch 4 and recess 5 which allow the last to be clamped in the machine 6, a tooth 7 engaging the notch 4 and a movable element 9 engaging the recess 5. The neck 3 is also provided with projecting marks 10, 11 which characterise the size and shape of the last. The machine 6 is provided with vertical bores 13 having associated transverse bores 14. Selected vertical bores 13 can be blocked by inserting pins 15 into the horizontal bores 14 so that the machine will only accept lasts with mark 11 in the corresponding position, i.e. will only accept lasts of the correct size. Mark 10 displaces a sensing member 12 to indicate another characteristic of the last, e.g. its width. In a second embodiment (Fig. 3) the last is clamped in the machine by bolts 19, 20, and its characterstiic values are indicated by pins 21, 22. The last may be a one piece last (Fig. 1) or a three-piece last (Fig. 3) consisting of a rigid centre part 25 and flexible toe and heel parts 26, 27 which are slidably mounted on the centre part 25. Alternatively the last (not shown) may be formed of a rigid heel and neck part and a slidable flexible front part. In a modification (not shown) the last consists of a rigid two part core on which is moulded an outer layer of flexible material. The core may be of a standard size, the size of the last being determined by the thickness of the outer layer.
Patent GB-1110722-A (GB)
Title: Adjustable angle vibratory feeder
Inventor: SPURLIN WILLIAM VERNICE
IPC: B65G27/16
Filed: 1965-04-27
Abstract: 1,110,722. Vibration feeder bowl. LINKBELT CO. 27 April, 1965, No. 17678/65. Heading B8A. [Also in Division F2] Feeder bowl 6 is carried by plate 3, which is supported from base-plate 1 resting on rubber feet 2, by a set of springs 7, which are secured at their ends adjustably. Thus, spring 7 is secured to spring blocks 11 and 12 each connected respectively to plates 1 and 3 by screws 16 and the screws 16 engage with one of series of holes 23, 24, 25 formed in plates 1 and 3. The spring 7 can be thus adjusted radially to meet the vibration requirements. The holes may also be disposed circumferentially. Alternatively, the spring blocks may be mounted pivotally to the plates 1, 3 so as to be adjusted relatively thereto.
Patent GB-320959-A (GB)
Title: Improvements in or relating to methods of electrolytically depositing chromium
IPC: C25D5/34
Filed: 1928-07-28
Abstract: 320,959. Soc. Chimique de la Seine, and Szidon, V. July 28, 1928. Divided on 320,440. Chromium, depositing; preparing surfaces; electrodes, moving.-Articles to be electroplated with chromium are first heated and immersed in the bath while still hot. The heating is preferably effected by passage of an electric current through the articles themselves ; for this purpose they are connected together and a temporary connection made from one of them to the positive terminal, the circuit being completed through the cathode support. The cathode support may be movable vertically by a rack and pinion, and may carry a brush moving over a resistance which is connected in circuit as the articles are lowered into the bath. Specification 320,440 is referred to.
Patent GB-406903-A (GB)
Title: Methods and apparatus for measuring distances
IPC: G01S1/72
Filed: 1933-06-22
Abstract: 406,903. Indicating proximity of earth or other bodies. SUBMARINE SIGNAL CO. (LONDON), Ltd., 9, Victoria Street, London.-(Submarine Signal Co. ; 160, State Street, Boston, U.S.A.) June 22, 1933, No. 17785. [Class 37.] An aeroplane carries a cathode-ray oscillograph for timing the echo of a wireless signal reflected from the earth. The oscillograph plates 59, 61 may be charged in quadrature from a 1000-metre oscillator which is stabilized by the crystal 53, so that the cathode beam traces a circular path at one revolution per cycle of the oscillator. The signal is emitted by a 5-metre transmitter 54 once per cycle at instants when the paralyzing bias of battery 55 is overcome, at the peak of the low-frequency oscillation, by e.m.f. applied through the coupling 51. The echo is picked up by a receiving loop 63 and acts through the control grid 64 to produce a serration in the oscillograph trace. The echo-receiver is protected against the outgoing signal by a reversed coupling 22. In a modification (Fig. 4, not shown), the signal may be of wave-length 1000 metres and derived from the oscillator which energizes the oscillograph plates. It is continuously transmitted, and the cathode beam is suppressed except when its negative bias is overcome by the peak of the reflected. wave. The position of the cathode spot on a circular scale therefore indicates the phase difference between the emitted and received waves. In a further modification (Fig. 7, not shown), the lowerfrequency oscillation which controls the rotation of the oscillograph beam is also used to overmodulate the high-frequency transmitter, so that only a brief impulse is transmitted once per lower-frequency cycle, at a definite phase of the lower-frequency oscillation. The control electrode 64 may be replaced by an exterior coil. The fluorescent screen mav be covered by a mask having a circular slit, so that the trace of the cathode beam is visible only at the instant when the reply signal is received.
Patent GB-1430525-A (GB)
Title: Heat-sealing adhesives
IPC: C09J131/04
Filed: 1974-04-24
Abstract: 1430525 Laminates BAYER AG 24 April 1974 [25 April 1973] 17837/74 Heading B5N [Also in Division C3] Substrates such as plastics, metals, porcelain and rubbers may be laminated using adhesive compositions comprising (a) an ethylene/vinyl ester copolymer containing 35 to 70 weight per cent of vinyl ester or a chlorosulphonated polyethylene or polyisobutylene, (b) a chlorinated olefin or diene polymer, (c) a defined optionally substituted polyphenyl, (d) an aromatic nitroso compound and (e) organic solvent. Specified components are (b) chlorinated polyethylene, polypropylene, polyisoprene and natural rubber, (c) terphenyls substituted by 1 to 6 isopropyl groups, (d) p-dinitrosobenzene and (e) aromatic hydrocarbons, chlorinated hydrocarbons, alcohols, esters and ketones. The compositions may also contain phenol/formaldehyde novolaks and resols, fillers such as silicates and carbon black, and pigments. The surfaces to be bonded may be cleaned, e.g. by sand blasting and/or degreasing with trichloroethylene, and may be primed. The adhesives are particularly useful for bonding vulcanized rubbers to metals and examples describe the bonding of sand blasted, degreased steel to degreased vulcanizates of compounded natural, butadiene/acrylonitrile and butadiene/styrene rubbers with adhesives comprising ethylene/vinyl acetate copolymer or chlorosulphonated polyethylene, chlorinated polyisoprene, isopropylated terphenyl having about 3 isopropyl groups in the molecule, carbon black, p-dinitrosobenzene, xylene and perchloroethylene, with and without priming of the surfaces with primers comprising chlorinated polyisoprene, phenol/formaldehyde resin, carbon black and methyl isobutyl ketone.
Patent GB-1300414-A (GB)
Title: Improvements in or relating to vehicle wheel braking systems
Inventor: MILNER PETER JAMES
IPC: B60T8/40
Filed: 1969-04-08
Abstract: 1300414 Fluid pressure brakes CHRYSLER UNITED KINGDOM Ltd 24 March 1970 [8 April 1969] 17840/69 Heading F2F Wheel slip is maintained at a substantially constant value or within a predetermined range in a vehicle fluid pressure brake system in which fluid is supplied to the brake cylinders 27 through a conduit 15 from a wheel driven pump 12 the brakes being applied when a valve member 22 actuated through a line 25 by a master cylinder (not shown) closes communication between the pump 12 and a reservoir 14. If the pressure P i  in conduit 15 increases due to momentary speeding up of the wheel the braking effort will also rise and the pressure P o  in the upper chamber of a pressure control valve 16 which communicates via a conduit 17 and orifice 18 with the reservoir also rises causing diaphragm 33 separating the upper chamber from a chamber 32, the pressure P c  in which is dependent upon the wheel speed of a rear unbraked wheel, to rise thereby closing orifice 36 by way of a member 35. The valve orifice remains closed until the pressure P o  bleeding through orifice 18 is reduced to P c  causing a further increase in P i  to raise the braking effort thereby slowing down the wheel until the correct braked wheel speed is reached. If the wheel slows too much, P i , P o  and the braking effort will be too low, and valve 35 will open until P o  equals P c  and P i  will thereby drop to further reduce the braking effort. In further embodiments P c  is derived from an unbraked main load-bearing of a vehicle, or from an unbraked lightly laden fifth wheel. The speed of the vehicle may be detected by a radar device which controls a pump generating the pressure P c . In another arrangement, Fig. 3 (not shown), for damping oscillatory braking pressures a non- return valve (39) is positioned in a small bore conduit (38) joining conduits 17 and the conduit through which the control pressure P c  is supplied, the latter conduit also having an orifice (42), and an opening (not shown) to dampen movement of the diaphragm. Instead of fluid pressure components electrical devices may be used, or the fluid pressure components may be miniaturized.