baber/WOPTO huggingface dataset:
Patent GB-588971-A (GB)
Title: Improvements in or relating to driving units for motor vehicles
IPC: B60K5/04
Filed: 1943-11-15
Abstract: 588,971. Motor vehicle driving gearing; vehicle spring suspensions. VINCENT H. R. D. CO., Ltd., and VINCENT, P. C. Nov. 15, 1943, No. 19001. [Classes 79 (ii), 79 (iii) and 79 (v)] [Also in Group XXXII] A driving unit for road or rail vehicles comprises an engine 11 with transverse crankshaft 13, chain and spur change-speed gears 7, 30, 31 and 23, 24, driving road wheels independently sprung with reference to axle casings 34, 35 which are bolted to or formed integral with the engine block, sealing or closure means 44, 45 being provided at the ends of the axle casings, and the whole unit being' bolted at 47 to the chassis frame 46. In the construction shown in Fig. 2 the engine is of the kind described in Specifications 555,974, [Group XXVII], and 567,646 having two working cylinders 11 and a pump cylinder 12 arranged longitudinally of the vehicle, two parallel crankshafts 13 being provided one at each end of the cylinders. The two crankshafts and a layshaft 25 are coupled together by three chains 7, 30, 31 forming a threespeed gear between the crankshafts and the layshaft, each chain passing over three chain wheels, one fixed on each crankshaft and one, 8, 26 or 27, loose on the layshaft but adapted to be connected thereto by a clutch 9, 28 or 29. The layshaft drives a differential gear 19 through two speed spur gears 23, 24, so that six speeds are available in all, and the differential gear drives the road wheels through universally-jointed shafts 21 having a certain amount of telescopic adjustment. The road wheel spindles 37 rotate in bearings in housings 39 each provided with vertical sleeves 40 sliding on a pair of vertical rods 41 under control of compression springs 42. Instead of the rods 41 being vertical they may be inclined to one side of a vertical plane passing through the point of contact of the road wheel with the ground, the road wheel being inclined to the other side of the vertical plane. A closure plate 44 is fixed to each housing 39, and sealing of the axle casing is completed by a flexible member 45. In the construction shown'in Figs. 3 and 4, applied to steering and driving wheels 54, the road wheel spindles 37 are mounted in steering knuckles 39 having three arms 55, 56, 57. The arms 56, 57 are connected to rocking arms 64 by ball joints 63 forming the steering pivots, these latter arms being rotatable on bosses 66 on the engine unit and being splined to the outer ends of torsion rods 69 fixed at their centres to the engine unit. The arms 55 of the steering knuckles are connected by links 59 and sliding rods 60 to a steering gear box.62.
Patent GB-634232-A (GB)
Title: Improvements in or relating to the washing of endless, moving surfaces or series of surfaces such as the insides of rotating hollow cylinders
IPC: D21F1/32
Filed: 1947-07-17
Abstract: 634,232. Washing moving surfaces of papermaking machines. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. July 17, 1947, No. 19070. [Class 96] [Also in Group XVII] An endless moving surface or series of surfaces such as the inside of a suction-couch roll 11 of a paper-making machine is washed by squirting liquid on it at cyclically varying rates of discharge. Jets may be projected with mutual variation from pairs of opposed nozzles 13 and 14 so that as the flow from nozzle 14 decreases that from nozzle 13 increases and vice versa. The flow cycle may be timed by gearing to the roll drive, a two-way rotary distributing valve 1 which feeds branches to the jets. Baffles 15 with flexible wipers may be fitted.
Patent GB-1479881-A (GB)
Title: Retrofocus wide angle photographic lens
IPC: G02B13/04
Filed: 1976-05-10
Abstract: 1479881 Wide angle lenses ASAHI KOGAKU KOGYO KK 10 May 1976 [22 May 1975] 19075/76 Heading G2J A wide angle photographic lens comprising, in sequence from an object to an image plane, a positive lens, two negative menisci having therein convex surfaces towards the object, a positive lens, a diaphragm, a positive lens, a positive lens group consisting of a positive lens and a negative lens, and a final positive lens, satisfies the following conditions:- F/2À25 < | F 1,2,3  | < F/1À65; F 1,2,3  < O F/0À7 < | F 1,2,3,4  | < F/0À4; F 1,2,3,4  < O F/0À8 < F 1,2,3,4,5,6  < F/0À4; wherein F is the focal length of the whole system, F 1,2,3,i  is the focal length of the first i lens groups, dj is the distance between the jth and the  j   +   1  th lens surfaces. Optical data of two embodiments are given.
Patent GB-712873-A (GB)
Title: Improvements in the preparation and use of cyanhydrins of ketones of the cyclopentanopolyhydrophenanthrene series
IPC: C07J75/00
Filed: 1952-07-29
Abstract: Cyanhydrins of ketones of the cyclopentanopolyhydrophenanthene series are prepared by reacting one or more of said ketones with an excess of a cyanhydrin derived from saturated aliphatic aldehydes and ketones possessing from 1-5 carbon atoms or saturated cycloaliphatic ketones containing from 3-6 carbon atoms.  The Specification also describes the purification of steroid ketones by treatment of a crude mixture with an excess of a cyanhydrin defined above, and thereafter decomposing the steroid cyanhydrin produced by treating with excess of a simple carbonyl compound, e.g. acetone.  Cyanhydrin formation is preferably conducted in presence of an alkaline substance, e.g. potassium carbonate, ammonia, tertiary bases, with traces of water, as catalyst.  In examples: (1) a crude steroid material (from oxidation of acetyl cholesterol dibromide and debromination) in ethanol is mixed with acetone cyanhydrin, and dehydroepiandrosterone cyanhydrin isolated by filtration.  The cyanhydrin is similarly prepared from pure dehydroepiandrosterone and is decomposed to yield the pure ketone by boiling with excess aqueous ammonical acetone; (2) crude D 5-pregnen-3b -ol-20-one, crude epiandrosterone, crude etiocholan 3 : 17-dione, androstan-3 : 17-dione, and estrone are purified in a similar manner.  Further examples describe the use of propionaldehyde, methyl ethyl ketone and cyclopentanone cyanhydrins in place of acetone cyanhydrin.
Patent GB-839285-A (GB)
Title: Improved caps or nozzles for bottles, jars and like containers
IPC: B65D47/06
Filed: 1958-06-16
Abstract: 839,285. Container closures. MALPAS, C. H. June 16, 1958 [Aug. 27, 1957], No. 19157/58. Class 125(3). A nozzle or drop-delivering device for bottles &c. has longitudinal grooves 18 to engage ribs 12 on the bottle neck 11 to prevent rotation and transverse ribs 19 to engage grooves 13 to prevent longitudinal movement the device being of polyethylene or polyvinyl chloride and having external screwthreads 17 to receive a closure cap. A depending skirt 20 fits within the neck 11 of the bottle to form a seal. In a modification, Fig. 4, the nozzle has ribs 19, 26 and the bottleneck corresponding grooves. In a further modification, Fig. 5, the neck has ribs which engage grooves 18, 27 and an insert 30 of polystyrene with a small diameter opening 31 is fitted in passage 21. It is stated the construction of Fig. 1, may have a valve in passage 21 to limit flow of liquid.
Patent GB-808416-A (GB)
Title: Electrical contact lubrication
Inventor: PEARCE GRAHAM
IPC: H01H1/60
Filed: 1954-06-30
Abstract: 808,416. Lubricating electrical contacts. PAINTON & CO. Ltd. June 30, 1955 [June 30, 1954], No. 19227/54. Class 12 (3). [Also in Group XXXVII] A pad of non-fibrous absorbent material impregnated with a predetermined quantity of lubricant substantially less than the quantity required to saturate it, e.g. 25 per cent, is wiped over the contacts of electrical apparatus to lubricate the same. The pad, which may be of " Neoprene " (Registered Trade Mark) is preferably of spherical form having a diameter of approximately “ inch, and the lubricant may be applied thereto as a solution of one part lubricant in two parts of a solvent such as white spirit. The contacts may be cleaned, prior to lubricating, by using similar pads impregnated with benzene &c.
Patent GB-819026-A (GB)
Title: Process for cleaving cumene hydroperoxide into phenol and other products
Filed: 1957-06-18
Abstract: The invention comprises a process for cleaving cumene hydroperoxide (C.H.P.) in the presence of acid, into products, including phenol, wherein a major proportion of the cumene hydroperoxide is cleaved in a cleavage zone, under conditions such that above 0.4 per cent by weight of the cumene hydroperoxide is initially present in the effluent from said zone, the acid in said effluent being neutralized immediately upon completion of the cleavage of the hydroperoxide in said effluent.  The process is preferably carried out by introducing C.H.P. acetone, and acid catalyst (sulphuric acid) into a primary cleavage zone in which is maintained a mixture consisting predominantly of phenol, acetone and an acid catalyst, continuously withdrawing from the zone and passing through a secondary cleavage zone a portion of the reaction mixture, adjusting the flow rates of the streams entering and leaving the primary cleavage zone, to maintain therein a C.H.P. concentration above about 0.4 per cent by weight and maintaining the reaction mixture stream passing through the secondary cleavage zone in residence therein until the C.H.P. concentration has fallen to below about 0.1 per cent by weight, and thereupon neutralizing the acid catalyst.  The acid required for the cleavage in the primary cleavage zone is supplied in a diluted acid stream of concentration about 10 to 50 weight per cent.  The water and acid needed for the process of the invention may be supplied as a mixed feed and the flow lines for each interlocked to provide an interruption of water flow to the cleavage zone, whenever an interruption in acid flow occurs. Examples are given of the cleavage of C.H.P. according to the process of the invention, i.e. under "mild cleavage" conditions, and under "severe cleavage" conditions. Products of the process are phenol, acetone, a -methylstyrene, acetophenone and mesityl oxide.  Specifications 626,095 and 629,429 are referred to.
Patent GB-259336-A (GB)
Title: Improvements in turret lathes and the like machine tools
IPC: B23Q5/34
Filed: 1925-07-30
Abstract: 259,336. Butterworth, A., Butterworth, A., and Butterworth, H. July 30, 1925. Turning. - The turret 11 of a lathe or like machine tool is mounted on a slide 16 which is reciprocated by a cam drum 21, the indexing movement being performed while the turret is stationary at the end of its withdrawal movement by means of a pin 20 mounted on the cam drum and coacting with a notched disc 18. To allow the rotation of the turret, the spring-pressed locking bolt 15 is withdrawn from a second notched disc 13 by means of a cam 28 carried by the drum 21 and acting through a pivoted lever 25.
Patent GB-256620-A (GB)
Title: Improvements in regulating devices for time pieces
IPC: G04B17/22
Filed: 1926-08-04
Abstract: 256,620. Ditisheim, P., and Dubois, W. A. Aug. 4, 1925, [Convention date]. Balances, balancesprings, and balance regulators. -A selfcompensating hairspring is associated with a bimetallic balance wheel. The inner surface of each of two or more bimetallic segments a, a<1> is attached for the major portions of its length to bearers c, c<1> in one with the arms b, b<1>. The hair-spring is preferably of elinvar.
Patent GB-674585-A (GB)
Title: Method of heating the charge in high frequency furnaces
Inventor: LUNDGREN GOSTA THEO DOR
IPC: H05B6/10
Filed: 1950-08-03
Abstract: 674,585. Induction furnaces. JOHNSON & CO., A. Aug. 3, 1950, No. 19360/50. Class 39(iii) An induction furnace retort has a reaction container comprising several vertically spaced cylindrical metal sections 6 surrounded and heated by an induction coil 2 to heat by conduction material in the retort, the sections 6 being independently supported and insulated from one another by an external self-supporting non-conductive annular refractory wall 8. The retort is used for heating non-conductive material; in metallurgical processes for the production of metal and alloys or for the recovery of magnesium or calcium from their compounds by reduction and distillation in vacuo. The tubular sections 6 are of iron or fireproof steel, have at their top edges collars 12 resting in recesses in the ceramic wall 8 and taper downwardly. The walls of the sections 6 may have external downwardly directed ribs preferably narrowing downwards and engaging recesses in the ceramic supports. The lower edge of each section may be supported on an annular inward projection 17 of the ceramic support, which may be sintered ceramic rings with vertical channels 9 adjacent the sections. Gases may enter the channels 9 at gaps 10 between the sections and pass up to a condensation chamber 11 above the furnace, A vacuum tight outer container 3 evacuated at 4 surrounds the furnace, which may have a lower steel bowl 7. The sections 6 fit tightly against the ceramic, which may be stamped in the furnace and sintered in place. The gas channels may pass radially outwards to collecting channels outside the supporting layer. The diameter of the furnace may be increased upwardly. The furnace may comprise superposed retorts with one or moreheating coils or several retorts each with an induction coil may be arranged in one container with a common gas condensation zone.
Patent GB-783918-A (GB)
Title: Magnetic memory system
IPC: G11C11/06
Filed: 1955-07-05
Abstract: 783,918. Electric digital-data-storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 5, 1955 July 8, 1954], No. 19389/55. Class 106 (1). Also in Group XXXIX] A digital data storage device using a conventional rectangular array of magnetic cores having a single sensing winding on which output signals are induced, is characterized in that to reduce " noise " in the sensing winding when data is read-out the read-out selection pulses applied to the selected X and Y windings are staggered in time as shown at IX, IY in Fig. 6 (steps 1 and 2) and the output signal induced in the sense winding is integrated for the duration of the shorter selecting pulse. In a threedimensional array the selecting pulses could be as shown in Fig. 3b. Of these two techniquesstaggering and integration-the former reduces noise because if the timing of the pulses is suitably chosen the signals induced in the output winding due to the small changes of flux caused by cores half-selected by the X-pulse, Fig. 3a will have died out before the Y-pulse is applied, and the second because cores that are halfselected for a second time go through a complete hysteresis cycle and their integrated induced output signal is zero. In the embodiment described-a three-dimensional arraya fourstep cycle is employed, Fig. 6, steps 1 and 2 being used for reading and sampling the integrated output, step 3 for writing and step 4 for both a " post write disturb pulse " which half selects every core of the array, and for changing the address switches. Specification 766,189 is referred to.
Patent GB-265072-A (GB)
Title: Improvements in receptacles for clothing and other articles
IPC: A47G25/54
Filed: 1926-08-06
Abstract: 265,072. Ringel, H. Aug. 6, 1926. Coverings for protecting wearing-apparel from dust.-In a clothing receptacle formed of a sheet of material folded upon itself and having all but one of its sides permanently closed, the open side being provided with a closure consisting of a thickened elongation 17 of one receptacle wall adapted to overlie the other receptacle wall, the closure is secured by one or more latches 20 each of which is adapted releasably to embrace the thickened elongation 17 of the closure and the walls adjacent to it. The receptacle may be' suspended by a hook 32 rotatably mounted in a recess 37 in a bent metal plate 28 disposed outside the receptacle. The plate is secured to a similar plate within the receptacle and the platen clamp between them a wall of the receptacle and a reinforcing strip of paper 26 secured thereto by adhesive. A loop 36 rotatably mounted in the inner plate serves to support the articles to be stored in the receptacle and is of triangular shape to adapt it to spread apart the walls thereof when set transversely to them.
Patent GB-743525-A (GB)
Title: Improvements in or relating to weft selection mechanism for looms
Inventor: DAVIES FRANK
IPC: D03D45/50
Filed: 1952-08-01
Abstract: 743,525. Automatic weft replenishing looms. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. July 24, 1953 [Aug. 1, 1952], No. 19464/52. Class 142 (2). In a loom having change boxes at one side and automatic weft replenishing at the other side, a pirn feeler feels the weft when a shuttle is not in its picking position, and an indication that replenishment is necessary is stored till the shuttle is next picked, whereupon a full pirn of the same type of weft is released from the magazine. There is an electric pirn feeler, solenoid 13 and lever 10, for each compartment of the drop box. Upon indication that a pirn needs replacing, the solenoid is energized and the corresponding lever 10 is raised, whereby a spring-urged pawl 22 moves beneath a step 10c on the lever. When the shuttle is next brought to the picking position, the solenoid is deenergized and the lever 10 falls and rests on the pawl 22. A cam 25 then moves a bell-crank lever 29 and a cross-bar 32 presses on the lever 10 and through another bell-crank lever 19 moves a rod 20 against a spring 21 to release a bobbin from the magazine. When the bar 32 moves away from the lever 10 the lever falls to its original position, shown dotted. When the shuttle arrives at the single box, the re-. leased pirn is inserted at front dead-centre.
Patent GB-980474-A (GB)
Title: Weighing apparatus
Inventor: PEROLLS ROLAND FRANCIS
IPC: G01G21/22
Filed: 1962-05-21
Abstract: 980,474. Counter scales. NOVOTECHNICS Ltd. May 20, 1963 [May 21, 1962], No. 19475/62. Heading G1W. A scale pan P is provided with the usual pivot pins 2 to support it on a beam B, and in addition a further pair of pivot pins 7 about which the pan is tipped to empty it. The pins 7 are movable in slots 6 on a bracket 5 attached to a base structure and are arranged so that they do not interfere with the weighing operation. A screw adjustable stop 4 on which the pan rests during weighing is fitted to the weigh beam.
Patent GB-955529-A (GB)
Title: Semiconductor device
IPC: H01L27/07
Filed: 1962-05-21
Abstract: 955,529. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. May 21, 1962 [June 21, 1961], No. 19506/62. Heading H1K. The equivalent of two electrically - connected junction transistors 10 and 20, Fig. 1, is incorporated in a monolithic semi-conductor device, Figs. 3 and 5, comprising a semi - conductor body having a first region 36 of one conductivity type and a second region 32 of the opposite conductivity type meeting in a first PN junction J2 and having a third region 64 of the first conductivity type and a fourth region 62 of the opposite conductivity type meeting in a second PN junction J4, a first electrode 35 in non-rectifying contact with the first region 36, a second electrode 50 in both non-rectifying contact with the first region 36 and rectifying contact with the fourth region 62, a third electrode 11 in rectifying contact with the second region 32, a fourth electrode 31 in non-rectifying contact with the second region 32, a fifth electrode 63 in non-rectifying contact with the third region 64, and a sixth electrode 61 in non- rectifying contact with the fourth region 62, the arrangement being such that a first impedance 24 is formed by the first region 36 between electrodes 35 and 50 and a second impedance (corresponding to resistance 25, Fig. 1) is formed by the fourth region 62 between electrode 61 and the PN junction J3 established by electrode 50 in rectifying contact with the fourth region 62.
Patent GB-663323-A (GB)
Title: Improvements in or relating to systems operated by liquid pressure
IPC: B60T13/14
Filed: 1949-07-25
Abstract: 663,323. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C. July 18, 1950 [July 25, 1949], No. 19540/49. Class 103 (i). In a hydraulic brake system of the type comprising a, master cylinder 10, the piston 16 of which may be operated by direct operator effort on the pedal 15 or by the pressure created in the servo chamber 17 due to the throttling of the delivery of a pump 12, a valve means 18 is arranged to automatically supply pressure from a reservoir 13, charged by the pump 12 through a cut-out valve 14, when the ratio of pressures in the working chamber 24 of the master cylinder and the servo-chamber 17 exceeds a certain value. The valve device 18 to carry out this function comprises a freely floating stepped piston 56 subject to the working chamber pressure above, and the servochamber pressure below, and adapted to open a ball-valve 57 controlling the supply from the reservoir 13. The cut-out valve 14 controlling the charging of the reservoir 13 by the pump 12 may be as described in Specification 539,935. In a modification, the valve device 18 and the cut-out valve 14 are shown combined in a single assembly.
Patent GB-911631-A (GB)
Title: Alloys
IPC: C22C19/07
Filed: 1959-06-08
Abstract: An alloy comprises: .15 to 28% Cr;. .5 to 15% W;. .0.5 to 20% Ta;. .0.01 to 3% Ti;. .0.1 to 1.3% C;. .balance essentially Co.  There may also be present one or more of the following: .up to 3% Nb but not exceeding 1/2 Ta;. .up to 3.5% Mo but not exceeding 1/2 W;. .greater than 0.5% Ti, Zr being present, but. .not greater than 3% Ti + Zr,. .or. .not greater than 0.5% Ti, Zr being present,. .but Ti exceeding 70% Zr;. .up to 0.2% B;. .up to 1.5% Si;. .up to 5% Ni or Fe or Ni + Fe. Specification 821,745 is referred to