baber/WOPTO huggingface dataset:
Patent GB-902562-A (GB)
Title: Improvements in or relating to photocopying apparatus
Inventor: HALDEN JOSEPH GERALD BROCTON
IPC: G03B27/24
Filed: 1957-07-01
Abstract: 902,562. Photographic contact printing and developing apparatus. OZALID CO. Ltd. Oct. 1, 1958 [July 1, 1957], No. 20653/57. Class 98 (2). In a contact printing and developing machine, separation of the original and light-sensitive sheets after exposure is performed by two vacuum means at opposite sides of the path of travel, of which one is a perforated roller with an internal seal so that the suction can only be applied over an arc starting at the point of separation of the sheets. As shown, the sheets are fed upwardly about printing cylinder 1 and the original is delivered at roller 7 or through conveyer 9 to the back of the machine. Perforated sectional roller 6 has rotatable perforated sleeves mounted on stationary cores and a stationary sealing member 36 of anti-friction plastic material sprung into position. The construction of roller 6 is described in detail (Fig. 2, not shown). The vacuum is applied through the hollow stationary shaft and channel 38 to arc 28 of the roller as the superposed sheets close a pair of trip contacts 10, 11. A vacuum plate 12 is evacuated when a predetermined suction has been applied to the perforated roller 6 by a vacuum operated switch. A suction tank 4 is provided.
Patent GB-207975-A (GB)
Abstract: 207,975. Gilchrist, S. H. Nov. 11, 1922. Clips, lever.-A lever clip c, by which the fixed end B' of a strap, band or the like is attached to a buckle casing, is carried by the pivoted lever of the clip b by which the free end B<2> of the belt, &c., is secured in adjusted position. The clip b is pivoted at b<1> in the side plates a<1> of the buckle casing a, which may have a slotted plate on one end through which the free end of the belt may be passed. The teeth on the two lever clips may lie at a slightly forward angle to increase the grip on the belt under tension.
Patent GB-772498-A (GB)
Title: Improvements in or relating to resistors having a positive temperature coefficient of resistance
IPC: H01C7/02
Filed: 1954-07-16
Abstract: 772,498. Temperature-sensitive resistors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 16, 1954 [July 18, 1953], No. 20865/54. Class 37. [Also in Group XL (a)] A resistance of high positive temperature coefficient is simultated by enclosing between two electrodes 2 a porous mass 1 of electronemitting material, the whole being enclosed in a vessel 4 containing a supply 7 of vapourizable material such as mercury, potassium, sodium, or caesium. At low temperatures the mechanism of " pore conduction " (i.e. the conduction by electron-discharge between the opposite walls of a single pore) lowers the overall resistance because it short-circuits a part of the conductive path in the solid; but at high temperatures the mercury vapour prevents pore conduction (when the mean free path of a slow electron becomes less than a fifth of the mean pore diameter) and the resistance is high. The mercury vapour is not itself ionized and the vessel may also contain a rare gas such as argon. As shown, the electrodes 2 are separately heated to bring the mass 1 to electronemitting temperature, but in another form the whole system is heated by a surrounding coil. The material may be any of the oxides of the alkali or alkaline earth metals and the pore diameter may vary from 0.1 to 100 micron with a pore volume of 50 to 90 per cent. In an example, with the material heated to 810 C., the resistances at vessel temperatures of 35  185 and 350 C, were 182, 3980 and 430,000 ohms respectively. The porous material may be made by starting with equal quantities of barium and strontium carbonates of particle size 1-10 microns, pressing into a tablet, and heating to 1000 C.; this yields a porosity of 80 per cent and an average pore diameter of 5 microns.
Patent GB-597315-A (GB)
Title: Improvements relating to curtain suspension means
IPC: A47K3/10
Filed: 1945-08-14
Abstract: 597,315. Suspending curtains. DANCY, C. R., and MECHANAIDS, Ltd. Aug. 14, 1945, No. 20876. [Class 52(v)] An intermediate supporting bracket for a curtain supporting wire comprises a base plate 2 from the upper longitudina edge 1a of which ex tends a horizontally tapered roof plate 4 supporting a depending wall 6. The opposite end edges of the wall are notched to receive the bends of the wire 10 and a clearance gap 11 is provided in the longitudinal free edge to allow the wire 10 to pass from one side of the wall to the other.
Patent GB-809070-A (GB)
Title: Improvements relating to railway block signalling
IPC: B61L23/12
Filed: 1955-07-20
Abstract: 809,070. Railway signals. SOC. TECHNIQUE POUR L'INDUSTRIE NOUVELLE SOC. ANON. STIN. July 20, 1955 [July 20, 1954], No. 20964/55. Class 105. In a railway block signalling system having stations AB, CD at the ends of a block section wherein the starting signal B or C is returned to stop and locked during or after the entry of a train into the section and cannot be unlocked to be set at clear until an indication that the section is clear is received, in order to enable a train having entered the section and before reaching the exit station to return to the entry station with the home signal A or D at clear, there is provided a device such as a relay 1 having at least one normal or rest position and one operative position which is set into its operative position prior to the departure of a train from the entry station, e.g. A,B, into the section and which in this operative position permits the starting signal B to be set at clear once but prevents resetting of the signal to clear after departure of the train into the section thereby preventing further operation of the block instruments AB, CD until the train, returning to the entry station AB, operates known devices to return the relay 1 to its rest position thereby freeing the starting signal B. The relay 1 in its rest position is held energized and prior to the departure of the train from station AB, a key T having a normally closed contact in the holding circuit of relay 1, is operated to open said contact to release the relay to its operative position in which, contacts (not shown) of the relay interrupt the circuit for the clear position of the starting signal B and stop the operation of the section block instruments. On return of the train to station AB the passing of the train over the insulated track section Is1 completes the pick-up circuit of the relay 1 and the relay assumes its rest position to free the starting signal B. The relay 1 may alternatively be replaced by a D.C. block instrument and members preventing actuation of the initial traffic controlling instrument and the co-operating instrument and of the anti-repeating lock arranged below the initial instrument. The relay 1 may have electrical or mechanical interlock.
Patent GB-801820-A (GB)
Title: Egg stand
IPC: A47G19/28
Filed: 1957-07-03
Abstract: 801,820. Egg-cup stands. WEILAND, H., DRUCKS, W., and DRUCKS, B., [trading as DRUCKS & CO.]. July 3, 1957 [Oct. 17, 1956], No. 20997/57. Class 128 A stand for egg cups comprises a plate a having recesses c to accommodate the feet of the cups d and a central cylindrical protrusion e having an intermediate wall f to support a salt container g. A handle i of a resilient material and having outwardly bent ends j engaging apertures in the flange b of the plate is provided, projections I formed on the flange b acting to retain the handle upright.
Patent GB-136623-A (GB)
Title: Improvements in and relating to Gill Frames for Wool, Mohair, Alpaca and like Fibrous Materials.
Inventor: HINCHLIFFE HAROLD
IPC: D01H7/44
Filed: 1918-12-17
Abstract: 136,623. Hinchliffe, H. Dec. 17, 1918. Spindle apparatus.-In gill and like frames wherein flyers are used in connexion with bobbins retarded by drag-washers, the supports of such washers' are positively rotated in an opposite direction from that of the rotation of the flyers. The drag-washers are supported on disks 2 rotated by gear-wheels, of which one is splined on a vertical shaft 7 driven by a belt from the shaft that drives the flyer spindles.
Patent GB-630076-A (GB)
Title: Manufacture of intermediates in the synthesis of adrenal cortical hormone
IPC: C07J75/00
Filed: 1946-07-13
Abstract: 4-Bromo-3 : 11-diketo-17(b )-hydroxy-20 : 21-diacyloxypregnanes (in which the acyl groups preferably correspond to an aliphatic acid containing not more than 6 carbon atoms in the molecule) are manufactured by treating a 3 : 11 - diketo - 17(b ) - hydroxy - 20 : 21 - diacyloxy pregnane with a substantially equimolecular proportion of bromine, preferably in an inert solvent.  The product may be isolated by dissolving the reaction mixture in ether, washing with dilute alkali or alkali meta carbonate solution, evaporating to dryness in vacuo and recrystallizing from ether, and may be treated with a tertiary base to produce a D 4,5-3 : 11-diketo-17(b )-hydroxy-20 : 21-diacyloxypregnene, which on hydrolysis yields D 4,5-3 : 11-diketo-17(b ) : 20 : 21-trihydroxypregnene.  In an example, 3 : 11-diketo-17(b )-hydroxy-20 : 21-diacetoxypregnane is treated with bromine in glacial acetic acid, and the resulting 4-bromo derivative is isolated and refluxed in pyridine to form D 4,5 - 3 : 11 - diketo - 17(b ) - hydroxy -20 : 21-diacetoxypregnene, from which the trihydroxy compound may be produced by hydrolysis with an aqueous methanolic solution of potassium carbonate and bicarbonate. Additional starting materials specified are those in which the acyl groups are those of propionic, butyric, valeric, caproic, capric, benzoic, toluic and phenylacetic acids.  Specification 628,255 is referred to.
Patent GB-153706-A (GB)
Title: Improvements in and relating to fire escapes
IPC: E06C9/14
Filed: 1919-08-27
Abstract: 153,706. Kosiba, W. Aug. 27,1919. Ladder escapes. - Relates to fire-escapes of the type comprising a flexible ladder normallv wound on a reel in a casing inside a room, and adapted to be unwound and passed over rollers through the window opening under the control of an escapement wheel and pendulum, the end of the ladder being provided with a collapsible carrier or chair. The casing 7, which may consist of a desk or other article of furniture, has a lower compartment 6 provided with a removable top cover and with a shaft 23, which is mounted in bearing-plates 18, 26 and is adapted to receive a removable crank-handle for winding the flexible ladder 17 on to the shaft 23. The ladder 17 passes out through an opening 10 in the end wall of an upper compartment 9, and is guided over detachable rollers 12, 14; the opening 10 is normally closed by a hinged shutter 11 having a fastening 45. The ladder 17 is provided with a collapsible chair 25, and its descent is controlled by means of gearing and an escapement, comprising pivoted dogs 40, 42 connected to a pendulum 35, a locking-dog being also provided. The casing 7 is prevented from tilting by a transverse bar 48 engaging the sides of the window frame.
Patent GB-202506-A (GB)
Title: Improvements in or relating to stop motions for looms for weaving towels or other fabrics
IPC: D03D51/00
Filed: 1922-08-03
Abstract: 202,506. Donaldson, A. Aug. 3, 1922. Stop-motions, measuring.-To stop a loom for weaving towels &c. when the emery beam has made a predetermined rotation, a pinion 15 mounted on the arbor of the emery beam 14 rotates a change pinion 16 on a counter shaft 17 having a stud 18 engageable with balance weights 19, which strike vertically disposed arms 20 of a bell-crank lever pivoted at 21 on the gable 22. The arm 23 of the bell-crank lever actuates an adjustable collar on a rod 25 connected to a latch-lever 27 pivoted at 28 to a bracket 29 and provided with a latch 31, which is moved from the position wherein it supports a loaded rod 32 and overhanging arm or striker 33, arranged vertically over the weft fork 9, so that as the loaded rod falls the weft fork is depressed and by means of the usual tippler mechanism the belt-shipping fork is actuated to stop the loom. The arms 20 are vertically adjustable, and the counter shaft is carried by an adjustable slotted bracket 34.
Patent GB-270932-A (GB)
Title: An improved concrete road surface and method of preparing same
IPC: E01C9/00
Filed: 1926-08-28
Abstract: 270,932. Pohlig, C. Aug. 28, 1926. Block paving; surface markings; paving tramways.-A road surface is formed of concrete panels 1 with intermediate strips 3 formed of blocks 2 rammed in separate millboard or like moulds such as those described in Specification 258,245. The concrete panels are first made, the spaces between them being filled with the moulds into which concrete is rammed. The strips are arranged to render underground mains readily accessible and may also serve as expansion joints, traffic guide lines, or as tramway paving.
Patent GB-145307-A (GB)
Title: Improved amusement apparatus
IPC: A63G7/00
Filed: 1919-08-29
Abstract: 145,307. Humphrys, F. W. Aug. 29, 1919. No Patent granted (Sealing fee not paid). Railways for recreation. -An approximately circular inclined track of the kind comprising a pair of parallel rails suspended from cross-beams supported by uprights and adapted to carry hangers provided with wheels or rollers and intended to be gripped by the hands of persons using the same, is provided with two or more tracks arranged side by side, the rails a being suspended by inverted T-pieces b from a series of crossbeams c supported by uprights d and each crossbeam carrying three or more T-pieces. The tracks may 'be parallel to each other throughout their length or they may be sinuous so that adjacent tracks approach and then recede from one another. The hangers comprise handles h projecting from a bar j pivotally suspended from an axle k provided with wheels or rollers m running on the rails a. A safety net may be provided beneath the tracks. Adjacent to the upper ends of the tracks is provided a platform to which access is obtained by a travelling, rocking, or stationary staircase, travelling chairs, or a lift.
Patent GB-184465-A (GB)
Title: Improvements in bicycles
IPC: B62K19/00
Filed: 1922-08-04
Abstract: 184,465. Bachelier, L. Aug. 12, 1921, [Convention date]. Axles, construction of, and mounting; wheels, facilitating detachment of.-In cycles &c. comprising three arched tubes and a steering-head the crank-sprocket i s mounted on an axle 10, Fig. 3, turning in ball-bearings arranged in cages, which may be made eccentric in order to effect the tensioning of the chain. The sprocket carries a brake drum 12, and the tightening-member of the drum may comprise a band 13 actuated by hand or by back-pedalling. The back-wheel of the cycle &c. is mounted on an axle 23, Fig. 5, carrying a sprocket-wheel 24 and rotating in ball bearings 26. Flanges 29 receive the spokes and may be prolonged to form a disc-wheel. The cages enclosing the ball bearings on the back and front forks are formed by two half-brackets 30, Fig. 6, one being part of the frame and the other being pivoted at 31. The two half-brackets 30 are closed by a steel girdle 32 stretched by a milled nut 33. Reference has been directed by the Comptroller to Specifications 18534/97, 6449/98, 1201/10 and 7045/14.
Patent GB-188747-A (GB)
Title: Improvements in hydraulic turbines
IPC: F03B15/02
Filed: 1921-08-12
Abstract: 188,747. NÚgri, J. Aug. 12, 1921. Regulating. - An angularly adjustable perforated disc o is arranged at the inlet side of a turbine wheel m, m<1> between the wheel and the guide vanes h. On rotation of the disc o the perforations are partly covered by the solid portion of the guide vanes h and so restrict the flow of water. The disc is moved by means of worm gearing w.
Patent GB-320696-A (GB)
Title: Improvements in self-driving motors for locomotives and road vehicles
IPC: F03G7/10
Filed: 1928-07-25
Abstract: 320,696. Hood, J. July 25, 1928. Self-driving machines.-A self-driving motor for locomotives and road vehicles comprises a compressed air engine supplied by an air receiver which is charged by pumps driven by a crank shaft which is geared to an axle of the vehicle. Reference has been directed by the Comptroller to Specifications 12372/09, 13936/13, and 176,435.
Patent GB-793677-A (GB)
Title: Improvements in or relating to white brass electro-plating
IPC: C25D3/56
Filed: 1956-07-12
Abstract: 793,677. Electrodeposition of zinc-copper alloy. FORD MOTOR CO., Ltd. July 12, 1956 [Sept. 13, 1955], No. 21562/56. Class 41. A process of forming a zinc-rich zinc-copper alloy electroplate comprises establishing an alkaline cyanide solution of zinc and copper containing substantially more zinc than copper and passing an electric current through such solution to cause an alloy of zinc to copper to be deposited, the said current being periodically reversed according to two sets of distinct and separate periodically reversed cycles, the first set of said cycles being composed of forward pulses and reverse pulses substantially longer than the corresponding forward and reverse pulses of the second set of periodically reversed cycle. A specified composition of cables comprises sodium cyanide, copper, zinc, caustic soda, rochelle salt, sodium sulphide and sodium carbonate. Diaphragms may be employed to separate the anode and cathode chambers and cast balls of zinc-copper alloy may be used as anodes. The first set of the periodically reversed cycles may be employed for a period of time substantially longer than that during which the second set of the periodically reversed cycles is used. The two sets of cycles may be attained by the use of two separate generators. The solution in the bath may be mildly agitated by low-pressure air. Specified durations for the pulses of the first cycle are 25 seconds of forward current and 5 seconds of reverse current; and for the pulses of the second cycle are 10 seconds of forward current and 2 seconds of reverse current. A steel or a die-cast base may be plated with an initial layer of copper, followed by a layer of zinc-copper alloy known as white brass, upon which is applied a final layer of chromium, with or without an intermediate layer of nickel.
Patent GB-1337098-A (GB)
Title: Thread guides for spinning and like machines tradio interferometer
IPC: D01H13/10
Filed: 1972-05-09
Abstract: 1337098 Flyers; tensioning devices HAMEL GmbH ZWIRNMASCHINEN 9 May 1972 [21 June 1971] 21562/72 Heading DID A combination flyer and thread brake comprises a thread guide tube and two spaced thread brakes either side of a flyer hub which itself can be braked, and which carries a releasably mounted flyer. As shown, two thread brakes 15 and 31 or 32 are arranged at either end of spindle 17. The spindle 17 rotatably supports a flyer hub 39 and the flyer hub is positioned between brake linings 35, 38. The spindle 17 bears on the lower thread brake 15 under the action of spring 23 bearing against adjusting nut 24. The spindle 17 also bears on the flyer hub 39 via an attached cover 29 and spring 36 and thereby brakes hub 39. The flyer 41 is clipped onto the flyer hub. The compression of the springs is adjusted by raising the spindle 17 and engaging it with the adjusting nut 24, or by adjusting grub screw 30.
Patent GB-1517996-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02D35/00
Filed: 1976-05-25
Abstract: 1517996 Rotary positive-displacement fluidmachines NISSAN MOTOR CO Ltd 25 May 1976 [27 May 1975] 21606/76 Heading F1F In an I.C. engine for a motor vehicle, an exhaust gas component sensor 46 senses the concentration of a chemical component such as oxygen, a hydrocarbon, carbon monoxide, carbon dioxide or nitric oxide in the exhaust gases and generates a signal representing the concentration. The signal is compared with a reference signal, corresponding to a predetermined concentration in a control circuit 48 and if it has a higher or lower voltage than the reference signal, a control signal is generated which operates a control valve unit 50 which controls the ratio of air to fuel supplied to air/fuel mixture supply means 30 and hence the air/fuel ratio of the air-fuel mixture produced in the supply means 30. The control valve unit 50 may comprise at least one solenoid valve either of the type having only two operating positions (open or closed) or the type operable over a range of positions. A circuit 52 may be provided which can detect deceleration of the vehicle and adjust the voltage of the reference signal in the control circuit to lower the predetermined air fuel ratio. The engine may also comprise a thermal reactor 36 for oxidizing the combustible residues in the exhaust gases, an air injection system comprising a pump 40 and valve 42 for discharging air into the exhaust ports 26 of the engine, an anti-backfire valve 44, an air cleaner 34 and a catalytic converter situated upstream of a muffler or mufflers in the exhaust pipe 38.
Patent GB-1419997-A (GB)
Title: Device for anchoring or coupling cables
IPC: E04C5/12
Filed: 1973-05-07
Abstract: 1419997 Cable fittings TRIPLE BEE PRESTRESS PTY LTD 7 May 1973 [8 May 1972 23 Oct 1972 13 April 1973] 21611/73 Heading D1T [Also in Division E2] A device for anchoring or coupling cables comprises a housing 2 having a pair of passages 6 therethrough, each passage being of generally rectangular cross section with two opposite sides 4 thereof substantially parallel and the other two sides 5 convergent towards each other towards one end of the passage, and a separate wedge for each passage and conforming substantially to the shape of the passages with the opposed convergent faces of the wedge and housing having therein recesses shaped to conform to the surface of a respective cable to be engaged therebetween at least one face of each pair of opposed convergent faces being deformable by contact with a cable during use. Each wedge is made of a soft metal, such as mild steel, which is deformable by a cable during use. Each wedge has holes 8 wherein pins 9 may be inserted to limit entry of the wedge into the passage whereby the cable tension is adjustable. A number of the housings may be secured to a plate having openings aligned with the passages. As shown in Fig. 3, each housing 11 is secured to an apertured flange, and a plurality of the flanges are secured together. One end of each housing has a lip to attach a flexible sheath 21 which is secured to a junction member 22 connected to a common sheath 23. As shown in Figs. 5, 6, the housing 28 has two pairs of passages, the side walls of one pair diverging in the opposite direction from those of the other pair to couple four pairs of cables together. The two outer passages are parallel to the inclined outer walls of the housing and the two inner passages are parallel to the axis of the housing. The cables 25 are secured to an anchoring device 26 and the cables 27 extend from a cable sheath 29.
Patent GB-500294-A (GB)
Title: Improvements in or relating to plate-type heat-exchange apparatus
IPC: F28F3/08
Filed: 1937-08-05
Abstract: 500,294. Plate heat - exchangers. PRESTAGE, E. Aug. 5, 1937, No. 21635. [Class 64 (iii)] A plate heat-exchanger of the kind described in Specification 477,999 is formed of alternate thick plates 10 and thin plates 16 deformable under the pressure of the heating or cooling fluid to form relatively thin spaces 23 for the milk &c. being treated. The thick plates are provided with packing strips 13 substantially thicker than the spaces 23 and the thin plates with spacing strips 19. In a modification, the thin plates 24, Fig. 6, are permanently offset towards adjacent thick plates. In another arrangement, the exchanger comprises thin plates 27, 28, Fig. 7, permanently offset towards one another. In a further modification, the thin plates are deflected towards the thick plates by strips 31, Fig. 8, secured to the latter plates. In a further arrangement, the exchanger is formed of thin plates deflected by cover-plates 32, Fig. 9, and a central hollow plate. In a still further modification, the exchanger consists of thin plates having marginal packing grooves 39, Fig. 11.