baber/WOPTO huggingface dataset:
Patent GB-858241-A (GB)
Title: Drawing office appliances
Inventor: MOON WILLIAM RICHARD HARDING
IPC: B43L7/00
Filed: 1957-09-03
Abstract: 858,241. Drawing apparatus. HARDING Ltd., H. Aug. 12, 1958 [Sept. 3, 1957], No. 27812/59. Class 97(3). A draughting machine has a supporting member 14, Fig. 1, carried by the parallel motion mechanism (not shown), which is drilled with spaced, aligned holes to receive a series of members 23. Each member 23 has a locating surface 24 in the form of a short cylindrical spigot, a stepped base 26 for slidably engaging a slot 10, Fig. 3, in a channel member 6 riveted at 4 to the straight edge 2, and a V block 30 formed at the upper end of spigot 24 for locating the rail 36 which is secured by screws 40 entering a dowel rod 42 in the rail. A clamp 44 having a projection 46 entering slot 10 is used to locate the channel 6 relative to the straight edge 2 before the holes are drilled for the rivet 4.
Patent GB-1498807-A (GB)
Title: Aryl carboxy-carbonate esters having liquid crystal properties
IPC: C09K19/20
Filed: 1975-03-24
Abstract: 1498807 Aryl carboxy-carbonate esters MARCONI CO Ltd 24 March 1975 [22 June 1974] 27842/74 Heading C2C [Also in Division G2] The invention comprises compounds having liquid crystal properties of the formulµ wherein R is alkyl or alkoxy, R<SP>11</SP> is wherein R<SP>1</SP> is alkyl, and U. V. W. X. Y and Z are H or polar groups, at least one of U, V, W and X being polar. Specified polar groups are Cl, Br, I and CN. They may be obtained by condensing a p-hydroxy-alkylbenzene or -alkoxybenzene with an appropriate acid chloride derivative of a one or two benzene ring carboxycarbonate ester.
Patent GB-1203502-A (GB)
Title: Multiple output voltage multiplier
IPC: H02M7/10
Filed: 1968-06-12
Abstract: 1,203,502. Voltage multiplying converters. ERIE TECHNOLOGICAL PRODUCTS Inc. 12 June, 1968 [3 Aug., 1967], No. 27897/68. Heading H2F. In the voltage multiplier circuit shown in Fig. 1, a capacitor 3a is connected between a low potential output terminal 6 and one input line from a transformer 1, and the load R 8  is connected in a feed-back loop from a high potential terminal 7 to the low potential terminal 6. Under load conditions with switch 9 closed the potential V 6  at terminal 6 tends to rise toward the potential V 7  at terminal 7 at a rate   equal to (V 7  - V 6 ) (1 - e -t/RC ) wherein R is the load resistance and C is the capacitance of capacitors 3a and 3g in series. This changing takes place during the first half-cycle on closing switch 9. Thus in the first half cycle C3a is charged to (V 1  + #V) wherein V 1  is the peak A.C. input voltage. On successive half-cycles this voltage is added to the charges on capacitors 3b, 3c, 3d, 3e, 3f and 3g and the potential at terminal 7 will rise by #V. This will tend to maintain the voltages at terminals 6, 7 at their no-load values. The result is a self-regulating control loop which tends to hold the voltages at terminals 6, 7 constant under changing load conditions. A variable capacitor (3b, Fig. 2, not shown) is provided to vary the A.C. input voltage thereby to vary the high potential output magnitude without affecting the low potential output magnitude. Over-voltage protection means, e.g. a spark gap, avalanche diode or an SCR may be connected across the low voltage terminals. Alternatively the low potential terminal may be at a later stage such as 4b &c.
Patent GB-983780-A (GB)
Title: Improvements in or relating to induction machines
Inventor: NIX GEORGE FRANCIS
IPC: H02K41/025
Filed: 1962-07-20
Abstract: 983,780. Linear motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 21, 1963 [July 20, 1962], No. 27941/62. Drawings to Specification. Heading H2A. In a linear induction motor, e.g. for traction, in which a non-magnetic conducting plate passes between a pair of cores producing a travelling field, the effective resistance of the plate is increased for starting by crowding the inducing current towards one edge of the plate by moving the cores away from the centre-line of the plate towards one edge. This edge may be thinned or slotted to further circumscribe the current path. The plate may be of aluminium or an alloy thereof.
Patent GB-426872-A (GB)
Title: Dress display board
IPC: A47F8/02
Filed: 1933-10-11
Abstract: 426,872. Dress display stands. BUTWICK, F., Renwick House, Hart Grove, Ealing, London. Oct. 11, 1933, No. 27978. [Class 52 (v)] [See also Group XXV] A board a shaped to the contour of the waist is attached to the pedestal j of a dress display stand by a spring clip g so that it can readily be adjusted to suit the garment being displayed, which is pinned back at the waist to take the shape of the board. The spring clip comprises rubber-covered jaws f on the ends of a coil g which may be passed through a hole d in the board and moved upwards so as to grip the board between the coils.
Patent GB-892700-A (GB)
Title: A printing press
IPC: B65H29/04
Filed: 1959-08-17
Abstract: 892,700. Delivering sheets. HARRIS INTERTYPE CORPORATION. Aug. 17, 1959 [Aug. 21, 1958], No. 28009/59. Class 100(1) The delivery drum of a printing press has a diameter which is a multiple of the diameter of the impression cylinder. As shown a multicolour offset printing press has two or more printing units each comprising plate, offset and impression cylinders 16, 17, 18. Sheets to be printed are held on the impression cylinders by grippers 25 which receive a sheet at each revolution of the impression cylinders. Transfer cylinders 23 having grippers 24 are disposed between the impression cylinders 18 of adjacent printing units to transfer sheets therebetween, the diameter of the transfer cylinders being double that of the impression cylinders. A delivery drum 26, having the same diameter as the transfer cylinders 23 is mounted on a shaft 22<SP>1</SP> adjacent to the impression cylinder of the final printing unit. Sprocket wheels are mounted on the shaft 22 at each end of the delivery drum, the pitch diameter of the sprocket wheels being less than the diameter of the drum. Gripper chains are guided round the sprocket wheels and convey the printed sheets to a pile support 40, the sets of grippers 32 on the chains being spaced apart by a distance corresponding to the circumference of the impression cylinders 18. The shaft 22<SP>1</SP> is driven through gears 27, 28 from the impression cylinder 18. Owing to the dimensions of the impression cylinder 18 and drum 26 the trailing edge of a printed sheet leaves the nip of the cylinders 17, 18 before the grippers holding the leading edge of the sheet are clear of the peripheries of the sprocket wheels.
Patent GB-912280-A (GB)
Title: Improvements in or relating to methods of preparing cellulose substances grafted by unsaturated monomers, and products thus obtained
IPC: D06M14/04
Filed: 1959-08-17
Abstract: Allyl cellulose prepared according to Specification 831,969, and having a degree of substitution of from 0,1 to 1 allyl group per anhydroglucose unit, is grafted by an unsaturated monomer, grafting being effected by polymerization in the mass or in a solution, suspension or emulsion of the unsaturated monomer. A polymerization catalyst (e.g. a peroxide or persalt) may be added to the monomer, or the allyl cellulose may be soaked with the monomer without the addition of polymerization catalyst, the resulting mass being then subjected to infra-red, visible, or ultra-violet radiation. Alternatively, the allyl cellulose may be pre-treated with an oxygenated reagent, e.g. oxygen, ozone or an organic peroxide, as in Specification 912,279, or the monomer may be partially polymerized and subsequently contacted with the allyl cellulose.  The allyl cellulose may be the allyl derivative of a natural cellulose material, e.g. ramie, jute, hemp, flax, sisal or wood fibre, or of an artificial cellulose material, e.g. regenerated cellulose, or of a cellulose ester or ether.  All unsaturated monomers except dienic compounds may be grafted on the allyl cellulose.  Specified monomers include vinyl halides, e.g. vinyl chloride and vinyl fluoride, styrene, a -methyl styrene, b -methyl styrene, chlorinated styrenes, vinyltoluene, acrylic monomers, e.g. acrylic acid, methacrylic acid and their derivatives, e.g. esters, amides and nitriles, monoolefins, e.g. isobutylene, ethylene, and propylene, vinylidene chloride, fluoride and cyanide, allyl monomers, e.g. allyl chloride, acetate and phthalate, unsaturated ketones, e.g. methylvinylketone and methylisopropylene ketone, nitrogenous monomers, e.g. vinyl-pyridine and vinyl-pyrrolidone, vinyl acetate and vinyl chloroacetate, and vinylsilane.  Cellulose fibres of reduced combustibility may be obtained by grafting with chlorinated monomers.
Patent GB-261045-A (GB)
Title: Improvements in or relating to apparatus for gripping sheets and the like
IPC: B65B41/04
Filed: 1926-05-04
Abstract: 261,045. Stokes & Smith Co., (Assig. nees of Federwitz, T. A., and Bailey, W. T.). July 1, 1925, [Convention date]. Sheet-carriers; grippers and gripper mechanism.-Gripper mechanism for use on a travelling chain, belt, &c. for conveying wrappers, labels, or other sheets coated with glue &c., for wrapping or covering boxes, cans, packages, &c., comprises two relatively movable members, one of which is freely rotatable or otherwise movable, by frictional contact with the sheets, to present different portions of its surface to successive sheets. As applied to a chain, the gripper unit consists of an edged disc or wheel 34 freely mounted on a stud 35 on a bracket 26 secured by spring clips on two chain link pins 28, in place of a side link, and a co-operating member 33 pivoted on one of the pins 28 and having a plane horizontal surface for receiving the sheet. The member 33 is provided with an arm 30 engaged by a spring 31 seated in a recess in the bracket 26, and another arm 32 projecting above the chain for engagement with cam members for moving the member 33 relatively to the member 34, against the returning action of the spring 31, to receive and deliver the sheet. The advanced edge of the sheet is stopped by the vertical portions of the grippers.
Patent GB-191207-A (GB)
Title: Improvements in or relating to bread-and-butter cutting and spreading machines
IPC: B26D7/34
Filed: 1921-10-24
Abstract: 191,207. Robins, C. H. Oct. 24, 1921. Reciprocating-saw machines. - In a bread-slicing and buttering machine, shown in plan in Fig. 1, the loaf is reciprocated in the plane of the disc knife 18. The table is formed with a loaf containing trough 3 having an adjustable side plate 10, the trough being swept by a presser plate 11 secured to a spring detent which derives an intermittent motion from the feed screw 12. The screw 12 is operated by a ratchet wheel 13 which engages a pawl 14 adjustable by a screw 16. The knife is driven by a chain 23. According to the first Provisional Specifica- 'tion the bread holder is stationary and the butter carrier and knife are mounted on a movable carriage. The knife is formed as a blade with an undulating or saw edge, is mounted on an oscillating frame and cuts with a saw action.
Patent GB-781741-A (GB)
Title: Improvements in and relating to the wet processing of fabric webs and apparatus therefor
Inventor: LASLEY JAMES BERNARD
IPC: D06B3/10
Filed: 1955-10-04
Abstract: <PICT:0781741/IV (b)/1> Open width fabric is bleached or washed &c. by passing it from squeeze rollers 28, Fig. 1, around a series of guide rollers 12, 16 and squeeze rollers 30, and through a tank 10 provided with a counterflow of liquor and partitions 22, 24, Fig. 2, offset across the width of the tank as shown to cause the counterflowing liquor to flow also across the width of the fabric in the direction of the arrows.  The tank has drain pipes 26, 261, and the partitions 24 are fitted with sliding doors 32 to close the spaces between the partitions 24 and the tank walls so that the tank may be divided into separate compartments which may be used to contain different liquors for combination treatments. The fresh liquor is supplied to the fabric by jets 20 which spray the fabric just before it enters the final squeeze rolls 18, but extra jets may be provided at 34, and removable cover plates 36 may be arranged over additional drain openings.  Guide rollers 38, 40 and pivoted jockey rollers 42 displace the fabric backwardly before it enters the squeeze rolls so that regular <FORM:0781741/IV (b)/1> spacing of the rollers 12, 16 may be maintained.  The liquor may be heated by a steam jacket 46 in the tank bottom.
Patent GB-939090-A (GB)
Title: Improvements relating to fastening devices for wearing apparel
Inventor: WOOD HERBERT HOWARD
IPC: A41F3/02
Filed: 1961-08-04
Abstract: 939,090. Clamp fastenings; hinges. THOMAS WALKER Ltd. June 20, 1962 [Aug. 4, 1961], No. 28337/61. Classes 44 and 65 (2). A fastening device comprises a pressureapplying lever 5 pivotally mounted in and between a pair of sheet metal side ears 7 projecting from a carrier plate 1, the lever having a pressure arm 6 which in use is movable angularly to co-operate with the carrier plate or with a movable clamping member 3 to provide a clamping pressure, the pivotal mounting of the lever 5 being made by means of lateral trunnion projections 9 on the lever engaging in bearings in the side ears, the side ears having pressed out thereof tubular extensions 10a to provide around the bearing apertures, open bearing sleeves having an axial length greater than the thickness of the sheet metal of which the side ears are formed. Each tubular extension is surrounded by a raised annular embossed reinforcing part 12. Specification 710,814 is referred to.
Patent GB-504348-A (GB)
Title: Improvements in and relating to implements for harvesting and cultivating the soil
IPC: A01D31/02
Filed: 1937-10-19
Abstract: 504,348. Implements and machines for working land. ENDRES, P. Oct. 19, 1937, No. 28424. [Classes 6 (i) and 6 (iii)] Au implement for tilling and harvesting comprises a tractor or wheeled carriage provided with a loading platform f, a plough k behind one of the back wheels and a, harrow i attached to a supporting member h projecting from the side of the implement. On the other side is a foot board m and guard rail @n. The rear of the implement may be provided with a potato lifter l which is replaced for beetharvesting purposes by a hook member p, as shown in Fig. 3. In a modification, the potato lifter is replaced by a potato laying wheel situated behind the harrow i.
Patent GB-647830-A (GB)
Title: Means for controlling the temperature of hot gases in combustion chambers
Inventor: WATSON ERNEST ANSLEY
IPC: F02C9/16
Filed: 1947-10-24
Abstract: 647,830. Gas turbine plant. LUCAS, Ltd., J. Oct. 24, 1947, No. 28434. [Class 110(iii)] [Also in Group XXIX] Means for controlling the temperature of hot gases in the combustion chambers of internal combustion turbines and jet propulsion prime movers comprises a temperature responsive device such as the metal tube d containing a quartz or other rod e, an air or gas valve j operated by the said device so as to control the flow of air or other gas through a duct n and means such 'as the diaphragm s responsive to the air or gas pressure in the duct, for controlling a liquid-operated mechanism which controls the supply of air or fuel to the combustion chamber. As shown, the apparatus comprises a body part a divided into two chambers by a diaphragm b and a body part p similarly divided by a diaphragm q. The diaphragm b supports a lever c carrying at one end the valve j and engaging at the other end an adjustable abutment h in a rod f urged against the quartz rod e by a spring g. The valve j is normally closed on its seating i by a spring g but opens on an increase of temperature to connect the outlet of the duct n with an outlet k. The pressure difference thus set up across a restriction o acts on a further diaphragm s which through a lever r supported by the diaphragm q opens a valve 2 controlling a spring-loaded piston 4. The two sides of the latter are in communication through a restriction 7. The piston 4 is supplied with pressure fluid through a pipe 8 and controls the fuel supply to the combustion chambers by varying the output of a variable delivery pump or by operating a throttle valve or a byepass valve in the fuel supply system. Alternatively, the piston 4 varies the air supply to the combustion chamber. In a modification, the valve j is closed as the temperature increases and the valve 2 is then opened by the increased pressure in the conduit u which branches from the main duct n, below the restriction o, the conduit v being dispensed with. Specification 497,112, [Group XXIX], is referred to.
Patent GB-736229-A (GB)
Title: Improvements in or relating to the manufacture of frangible diaphragms for safety devices
Inventor: PHILIP THOMAS BRUCE
IPC: B21D26/00
Filed: 1952-11-12
Abstract: 736,229. Making frangible diaphragms. DISTILLERS CO., Ltd. Oct. 20, 1953 [Nov. 12, 1952], No. 28463/52. Class 83 (2). A process for the manufacture of a ductile metal frangible diaphragm for use in a safety device comprises subjecting the diaphragm to a short-acting positive pressure differential which is at least 90 per cent of the positive pressure differential at which the diaphragm would rupture. The diaphragm may initially be made by die pressing or by the action of fluid pressure on a thin sheet of not more than 0.025 inches in thickness of ductile metal, e.g. nickel, silver, copper, aluminium, stainless steel and other alloys. The preformed diaphragm is then subjected by the action of fluid pressure on its concave surface to said short-acting pressure differential approximately 2 seconds while its convex surface is open to the atmosphere. Alternatively, the diaphragm may be formed directly by the action of said fluid pressure differential on a sheet of ductile metal in a mould. In an embodiment a silver domeshaped frangible diaphragm of 1 inch diameter is formed from foil 0.004 inches thick by clamping the foil in a circular holder and applying to one side thereof a pressure of 306 p.s.i. which is 92.5 per cent of the normal bursting pressure for two seconds. Specifications 711,516, [Group XXIX], and 728,966 are referred to.
Patent GB-1154034-A (GB)
Title: Electrically Heated Appliances
Inventor: TYLER ARTHUR
IPC: H01H71/20
Filed: 1965-07-06
Abstract: 1,154,034. Two-part couplings. BULPITT & SONS Ltd. 6 July, 1966 [6 July, 1965], No. 28489/65. Heading H2E. [Also in Divisions H1 and H5] An electric heater 11 has a terminal head 13 comprising a hollow sheet metal pressing through the walls of which the ends of the heating element 12 are brought for connection to supply terminals or tubular contact pins 27, the edges of the pressing being spun or pressed over the periphery of an annular metal plate 19 supporting on insulating base 26 mounting the pins 27. Plate 19 has base 26 secured to it by screws 23, 24, and screw 24 engages in an earthing pin 30. A plunger 64 disengages the plug and socket connection to the heater when the melting of solder allows a spring 71 to move the plunger to its outer position. The heater is an immersion heater, e.g. for a kettle, or is incorporated in an iron or space heater.
Patent GB-464584-A (GB)
Title: Improvements in and relating to hoeing and crop thinning machines
IPC: A01B41/04
Filed: 1936-10-15
Abstract: 464,584. Machines for working land. SPITTLEHOUSE, C. Oct. 15, 1936, No. 28498/35. [Class 6 (i)] A machine for hoeing and spacing plants comprises two rotary hoes on vertical axes equally spaced transversely from the longitudinal axis of the machine, a rotary hoe having its axis inclined in the longitudinal vertical plane of the machine, and a motor for driving the hoes and the travelling wheels in predetermined relation. The motor 20 is mounted on the frame 21 pivoted on the wheel axle 2 and drives the wheels 1 through chain gearing, a gear-box 30, a shaft 35, and a clutch operated by a lever 32 on one of the guiding handles 33. A square bar 42 carries brackets for supporting vertical shafts 46 carrying the rotary hoes 47, which shafts are driven from the shaft 35 by bevel gearing. Two hoes 47 are carried by each of two sleeves 48 adjustably mounted on the shafts 46. Four spacer hoes 54 are carried by a four-armed bracket 52 mounted on a shaft 45 supported by a bracket 44 and driven from the shaft 35 by chain-and-bevel gearing. Two rear supporting wheels 57 are carried by arms 58 secured in slots in brackets 43.
Patent GB-450436-A (GB)
Title: Improvements in or relating to force-feed lubricators
IPC: F16N3/12
Filed: 1935-10-16
Abstract: 450,436. Grease guns. BACH, E., and KLEIN, A., (trading as KUPFER-ASBEST CO. G. BACH ), 26A, Aussere Rosenbergstrasse, Heilbronn, Germany. Oct. 16, 1935, No. 28530. [Classes 102 (i) and 102 (ii)] In a grease gun having a h.p. plunger l and a l.p. piston a operated by a common push-rod b, the rod operates the piston a through a tilting ring d and a spring g. On forward movement of the rod b the ring d engages the oblique face of a piston f and so grips the rod. The piston f is arranged in a recess in the piston a and moves the latter through the spring g so that grease is fed to the h.p. cylinder through the sockets of the return springs m of the h.p. plunger. When the movement of the piston a is arrested, forward movement of the rod b comprises the spring g. In charging the gun the piston a is retracted by means of a collar x on the rod b. At the limits of the movement of the piston f, the ring d is straightened by spring rings k, q and the rod b is released.
Patent GB-801611-A (GB)
Title: A convertible settee
Inventor: BENSON WALTER
IPC: A47C17/04
Filed: 1956-09-19
Abstract: 801,611. Bed - settees. FURNITURE PRODUCTIONS (BRADFORD), Ltd. April 3, 1957 [Sept. 19, 1956], No. 28612/56. Class 52(2) The base frame 1 of a settee has sockets 2 in its back rail to receive tenons 3 of a plurality of removable back rest frames 4 which tenons can also be accommodated in sockets 6 in the end rails. The tenons are preferably at an angle so that the back-rest frames when supported in the sockets 6 can lie horizontally when the settee is to be used as a bed. The cushions 5 for the back-rest may be removable and preferably of pocket form, to allow for inversion of the frame 4, as shown in Fig. 2, or fixed upholstery may be appled to the front and back of the frame 4.
Patent GB-923526-A (GB)
Title: Improvements in means for mounting the container of an extrusion press in the container-holder
IPC: B21C27/00
Filed: 1960-08-18
Abstract: 923,526. Extruding. SCHLOEMANN A.G. Aug. 18, 1960 [Sept. 4, 1959], No. 28626/60. Class 83 (4). The billet container 1 of an extrusion press is removably mounted in its holder 4 by a rotatable bayonet joint ring 7. The latter is mounted in a flange 5 screwed to the holder and has peripheral teeth 8 engaging a driving pinion 9 which may be rotated manually or by a motor. Container 1 has longitudinal slots 12 with which ledges 13 on the ring are aligned to permit withdrawal to the left of the holder 4 after extrusion. When the ring is rotated the ledges engage within an annular groove 14 of the container.
Patent GB-1112305-A (GB)
Title: Apparatus for shaping metallic workpieces
IPC: B21D26/14
Filed: 1965-07-06
Abstract: 1,112,305. Electromagnetic forming. SIEMENS SCHUCKERTWERKE A.G. 6 July, 1965 [8 July, 1964], No. 28681/65. Heading B3Q. An electromagnetic forming apparatus comprises a field concentrator between the forming coil and the work. The concentrator may comprise a number of copper-beryllium rings 11, Fig. 1, separated by epoxy resin insulation 13 and formed with recesses 18 for the insulated coil 12. Connectors 15 for the coil are separated by insulating material 19, and the rings 11 have slots 16, Fig. 1b. A workpiece may be formed in two or more successive operations, a first operation forming the work against a die 26, Fig. 2. The die is changed and an additional concentrator (37) used, Fig. 3 (not shown), for the second operation. In a further form, Fig. 4 (not shown), the coil (43) is mounted on a core (44) of epoxy resin, and the concentrator has a slot (46). Reference has been directed by the Comptroller to Specification 896,923.