baber/WOPTO huggingface dataset:
Patent GB-727432-A (GB)
Title: Improvements in or relating to electric circuit interrupters, having arc extinguishing arrangements
IPC: H01H9/44
Filed: 1952-10-28
Abstract: 727,432. Arc-rupturing in switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Oct. 28, 1952 [Dec. 29, 1951], No. 27050/52. Class 38 (5). In order to reduce the electrostatic stress between the ends of the pole-pieces of a blow-out magnet and a conducting member in a circuit breaker, e.g. an arcing horn, one or more members at the same potential as the horn are disposed laterally thereof and are embedded in insulation. In one form, Fig. 2, the pole-pieces 5 enclose an arc-shoot 2 having arc-horns 9, 25,. the latter being connected at its lower end to two rods 31 enclosed in insulating tubes 34. In a modification, Fig. 4, the rods 31 are replaced by a channel member 42 connected to arc-horn 25 by screws 43 and having its ends 46 surrounded by insulating strips 47 in slots 45 in a ceramic member 44. In a further arrangement (Fig. 6, not shown), the tube 34 is itself enclosed in a tube of fibre and a splitter plate is arranged above the arc-horn 25. Instead of using a stationary arc-horn 25, as above, an arc-horn may be attached to the movable contact and may be associated with fixed or movable rods 31 (Figs. 12-15, not shown). In the above arrangements, the magnet core is U- shaped, but an H-shaped core may be used, Fig. 17, having two arc-shoots, the arrangement of any previous figure being thus duplicated. The Specification also sets out the theory underlying the invention.
Patent GB-1478356-A (GB)
Title: Haptene derivatives of estrogens processes for preparing them and methods of preparing antigens from them
IPC: C07J41/00
Filed: 1974-06-18
Abstract: 1478356 7α-Carboxyalkyl steroids ROUSSEL-UCLAF 18 June 1974 [18 June 1973] 27131/74 Heading C2U [Also in Divisions C3 and G1] The invention comprises the three classes of compounds identified "I" in the Reaction Scheme, and their preparation by the routes shown wherein b is 3-18, the group (CH 2 ) b  being straight or branched; L, L<SP>2</SP>, L<SP>3</SP> and W are acyl; and T is C 1-8  alkyl. Preferred reagents: II#III (X = Cl, Br; M = 2-tetrahydropyranyl or benzyl), then acid, then L<SP>2</SP>OH or functional derivative thereof; III#IV alkali metal base; IV#V CrO 3 , Ag 2 CO 3 , Ag 2 SiO 3  or Pb(OAc) 4 ; V#I Arthrobacter Simplex; I#I H 2 /Pd or NaBH 4 ; III#VI Pb(OAc) 4  then NaOH/MeOH; VI# VII L<SP>3</SP>OH or functional derivative thereof; VII#VIII CrO 3 /dil. H 2 SO 4 ; VIII#I NaBH 4 ; I#IX TOH; IX#XI acetic anhydride or isopropenyl acetate; XI#XII perchloric'or perphthalic acid or hexafluoroacetone hydroperoxide; XII-XIII H 2 SO 4  or AcOH(in Example 3, T = Et is concurrently replaced by T = Me by acidolysing in methanol); XIII#1 LiBH 4  or NaBH 4 , then KOH/MeOH. Compounds I may be coupled with bovine serum albumin by the mixed anhydride method, and the resultant conjugates used to prepare antibodies which are used in the determination of estrone, estradiol and estriol in body fluids.
Patent GB-935918-A (GB)
Title: Improvements in or relating to electrical test equipments
Inventor: DUNTHORNE DONALD
IPC: G01R19/165
Filed: 1961-07-27
Abstract: 935,918. Voltage monitoring. GENERAL ELECTRIC CO. Ltd. July 20, 1962 [July 27, 1961], No. 27271/61. Class 37. An electrical device monitoring a voltage comprises a normally quiescent semi-conductor controlled rectifier whose gate electrode is energized over a control circuit to fire the rectifier and operate an indicator device when an input voltage exceeds a predetermined magnitude in a predetermined sense; the rectifier being returned to quiescence after each firing. Transient voltages are applied across a variable resistive potentiometer 3, 4 through a Zener diode 6 to the base of amplifying PNP transistor 5 whose collector is connected to the gate electrode of a controlled silicon rectifier 8 having four alternate P and N conductivity regions, with anode and cathode connected respectively to the end P and N regions and a gate electrode connected to the intermediate P region. The Zener diode polarity is such that when junction 3, 4 is negative with regard to the base of transistor 5, the diode operates reversely, and a series D.C. circuit 10, 11 shunts the controlled rectifier while a capacitor 15 shunts the rectifier in series with relay winding 12, which is in turn connected to battery 16 through normally closed relay contacts and series resistor 14. Counter solenoid 18 is connected to battery 19 over normally opened relay contacts. A negative transient at 1, 2 exceeding a critiacl level established by 3 breaks down diode 6 and drives the transistor 5 conducting to positively pulse the gate electrode to fire rectifier 8 and energize relay winding 12 by discharge of normally charged capacitor 15. Counter solenoid 18 is pulsed rectifier 8 is disconnected and ceases to conduct and capacitor 15 recharges, so that the rectifier resumes quiescence in preparation for another negative transient. Capacitor 11 maintains the rectifier discharge current at a level above the holding current for a time interval sufficient for the counter to be operated even for very short pulses. Resistor 14 limits the charging current for capacitors 11, 15 to prevent false operation of relay 12. The apparatus is unresponsive to positive input transient voltages.
Patent GB-310359-A (GB)
Title: Improvements in or relating to developing apparatus for automatic photographic machines
IPC: G03D3/13
Filed: 1928-09-22
Abstract: 310,359. Siemens & Halske Akt.- Ges. April 24, 1928, [Convention date]. Addition to 303,140. Developing - apparatus. - In apparatus for an automatic photographic machine, as described in the parent Specification, the conveyer-rollers are connected by an articulated driving-chain which is either constructed of chemically resistant material or is covered with a coating of such material. The centre roller 9 of the upper system and the outer rollers 37, 39 of the lower system are formed as sprockets engaged by the endless articulated chain 40 which passes round a guide wheel 41 at the lower end of its run. Rubber belts 42 connect the outer rollers of each of the systems.
Patent GB-537841-A (GB)
Title: Manufacture of surface active compounds
IPC: C09K23/00
Filed: 1939-10-06
Abstract: 537,841. Sulphochlorides and their products of hydrolysis. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Oct. 6, 1939, No. 27360. [Classes 2 (iii) and 15 (ii)] Before treating petroleum hydrocarbons with sulphur dioxide and chlorine for the production of sulphochlorides, they are refined by treating them with strong polybasic mineral acids, alkalies, absorptive bodies, e.g. Fuller's earth, or they are chilled to separate solid constituents so that they have the following characteristics : Distilling range of 250-360 C. ; Saybolt universal viscosity at 38 C. of 32-52 secs. ; Specific gravity at 15.5 C. of 0.7610-0.820 and Refractive Index of 1.425-1.45 at 20 C. The products may be hydrolysed to give sulphonates having wetting and detergent properties. They may be used as textile assistants in the presence of sodium sulphate, chloride, pyrophosphate or hexametaphosphate or of bentonite. In examples in which the petroleums employed have a specific gravity, refractive index and viscosity as above indicated : (1) a crude oil boiling between 284 and 306 C. is treated with sulphuric acid, washed with alkali and dried before being reacted with sulphur dioxide and chlorine in the presence of light ; (2) a petroleum boiling between 266 and 312 C. is reacted with sulphur dioxide and chlorine and the product treated with caustic soda lye ; unreacted oil separates on standing and a further quantity may be extracted with petroleum ether ; (3) a mixture of chlorine and sulphur dioxide is bubbled through a petroleum white oil boiling between 283 and 324 C. and the product hydrolysed ; mono and poly sulphonates of hydrocarbons and chlorinated hydrocarbons are obtained. The process may be continuous, the petroleum hydrocarbon passing in counter current to the sulphur dioxide and chlorine. Excess of sulphur dioxide over the chlorine is preferably used. Diluents such as hydrocarbons of high and low boiling points and chlorinated hydrocarbons may be employed. Alkaline earth metals, ammonia, amines and tetramethylammonium hydroxide may be used for the hydrolysis in the formation of the sulphonates.
Patent GB-1400658-A (GB)
Title: Light scattering type smoke detector
IPC: G08B17/107
Filed: 1973-06-08
Abstract: 1400658 Smoke detectors NITTAN CO Ltd 8 June 1973 [21 June 1972] 27390/73 Heading G1A In a light scattering type smoke detector comprising a dark box permitting smoke to enter, a light source and a light sensor are arranged with their optical axes intersecting at an obtuse angle at a point within an aperture in a plate which prevents illumination of the sensor either directly or by reflection from the walls of the box. As shown, Fig.2, the source 2 projects a beam of light across the box 1 and a detector 3 is arranged with its axis at an angle to that of the source so that it only receives light scattered by smoke entering the box. A plate 4 having an aperture 41 is arranged across the box near the intersection of the source and detector axes to limit the area of the light beam and prevent light reflected from the top and bottom surfaces of the box from reaching the detector.
Patent GB-371279-A (GB)
Title: Improvements in the production of anhydrous neutral calcium nitrate
IPC: C01F11/38
Filed: 1931-10-02
Abstract: Anhydrous neutral calcium nitrate is obtained by reaction between vaporized nitric acid or nitrous gases and a mixture of calcium oxide, hydroxide, or carbonate with calcium nitrate. Temperatures of 200-350 DEG  C. may be used and the mixture employed may comprise spherical agglomerates of slaked lime and concentrated calcium nitrate solution, or powders or briquettes obtained by slaking lime with a calcium nitrate solution or by mixing calcium nitrate with calcium carbonate.
Patent GB-163356-A (GB)
Title: Improvements in or relating to liquid-fuel supply apparatus for internal combustion engines
IPC: F02M37/02
Filed: 1919-11-07
Abstract: 163,356. Bowden, W. Nov. 7, 1919. Liquid-meters. - In fuel-supply apparatus for internal-combustion engines in which fuel is drawn into a receptacle 1 by suction, the means for controlling the pressure in the receptacle are actuated by an electromagnet device or devices, which may also control the fuel inlet to and outlet from the receptacle. An electrical registering- device may be arranged in the circuit. In the form shown, the receptacle communicates with the suction pipe 31 connected to the induction pipe y. Controlling- valves 32, 33 and fuel inlet and outlet valves 5, 6 are carried by the cores of solenoids 14, 15, the circuits of which are controlled by switches 21, 26 carried by floats 16, 17, the construction and operation of the device being similar to the apparatus described in Specifications 113,949, 114,207, and 119,299.
Patent GB-1175343-A (GB)
Title: Floater Thread Clipping Apparatus.
Inventor: GRAICHEN CLAUS
IPC: D06C13/04
Filed: 1968-06-10
Abstract: 1,175,343. Lace machines. C. GRAICHEN. 10 June, 1968, No. 27548/68. Heading D1C. A device 41 for clipping the threads floating between the patterns interlaced in a lace fabric and which extend over the surface of the lace comprises a bar 43 carrying a series of members 62 resiliently pressed against the surface of the lace such that as the bar is reciprocated under the control of the jacquard mechanism 17 for the machine the floating portions of the patterning threads ride over the front or rear ends of the members 62 and are severed by blades 74 secured at the ends. The device is located adjacent the fabric and between the lace producing area and the take-up roller. The device may be used on a Levas face machine or is applicable to a Raschel lace machine.
Patent GB-1262756-A (GB)
Title: Process for producing nitric acid
IPC: C01B21/44
Filed: 1969-05-30
Abstract: 1,262,756. Distillation of nitric acid. SUMITOMO CHEMICAL CO. Ltd. 30 May, 1969 [31 May, 1968], No. 27642/69. Heading BIB. [Also in Division Cl] Nitric acid of concentration more than 97% by wt. and substantially free from N 2 O 4  is produced by feeding 80-90% nitric acid into distillation zone 8, feeding nitric acid of greater than 97% and containing 20-30% by wt. of N 2 O 4  into the upper part of stripping zone 7 and passing the vapour from the distillation zone 8, via chimney 25, into the lower part of zone 7, withdrawing nitric acid of concentration greater than 97% by wt. and free from N 2 O 4  from zone 7 via pipe 11, and withdrawing 68-72% nitric acid from zone 8 via pipe 23. Nitric acid at the bottom of zone 7 may be passed into zone 8 via pipes 18 and 19. The stripping-distillation-tower may be operated at 1-3 atmospheres and is heated via steam pipes 10 and 19.
Patent GB-861560-A (GB)
Title: N-substituted piperidines
IPC: C07D211/64
Filed: 1957-09-02
Abstract: The invention comprises compounds of the general formula <FORM:0861560/IV (b)/1> and acid addition salts thereof, wherein R1 represents a C1-5 alkyl radical and R a hydrogen atom or a hydroxy, acyloxy, amino, acylamino or nitro group, and the preparation thereof by reacting a compound of the general formula <FORM:0861560/IV (b)/2> with a reducing agent.  The process may be combined with one wherein the starting materials are prepared by the process described and claimed in Specification 861,561.  Specification 861,559 also is referred to.ALSO:Pharmaceutical compositions comprise compounds of the general formula <FORM:0861560/VI/1> and acid addition salts thereof, wherein R1 is a C1-5 alkyl group and R is a hydrogen atom or a hydroxy, acyloxy, amino, acylamino or a nitro group, together with a pharmaceutical carrier.  Acid addition salts of the active ingredients include the hydrochloride and hydrobromide. Compositions include tablets, parenterally injectable solutions and powders and may also include dispersing agents and other solubilizers, effervescing agents or flavouring agents. Specifications 861,559 and 861,561 are referred to.
Patent GB-284041-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/08
Filed: 1926-11-05
Abstract: 284,041. Metie, A. Nov. 5. 1926. Sparking-plugs. - The central electrode B and its insulation are movable angularly and axially against the action of a spring D for the purpose of adjusting and cleaning the spark gap.
Patent GB-356494-A (GB)
Title: Improvements in or relating to gas-heated devices for heating liquids
IPC: F24H1/00
Filed: 1930-09-17
Abstract: 356,494. Submersible liquid heaters. LINGNER, G., 5A, Friedhofstrasse, Dessau, Anhalt, Germany. Sept. 17, 1930, No. 27814. [Class 64 (i).] In a submersible liquid heater comprising a metal container 1 with a gasburner 5 at its lower part and a lateral air supply conduit 2 spaced from the container, the latter is provided with a number of vertical partitions 3 through which and the sides of the container pass open-ended tubes 4. The conduit 2 is divided by a partition 7 into two parts, the part adjacent the container supplying air to the outer part of the burner. Inside the other part the gas pipe is provided with an air inlet 8.
Patent GB-386057-A (GB)
Title: Improvements in or relating to drawer suspensions for filing cabinets, desks, cupboards and like furniture
IPC: A47B88/493
Filed: 1931-10-08
Abstract: 386,057. Rectilinear-motion bearings. DANIELS, G. F. V. and HAGGER & DANIELS, Ltd., Malenta Works, Cottage Green, Camberwell, London. Oct. 8, 1931, No. 27990. [Class 12 (i).] A sliding suspension for drawers of the double suspension type in which the parts slide on ball bearings comprises a channel section sheet metal carcase runner 1 fixed to the wall of the cabinet and provided with inwardly turned flanges 3, 4. A pair of lineal ball cages 6, 7 is fixed to the lower flange 4 and rollably mounted upon two balls 8, 9 located respectively in the cages 6, 7 is a channel section sheet metal floating slide 10 upon the top of the upper inwardly turned flange of which is a lineal ball cage 13 containing a ball 14. A narrow sheet metal channel 15 is welded to the inner face of the web 11 of the floating slide 10 and is provided with a pair of lineal ball cages 18, 19 containing a pair of balls 20, 21. Rollably mounted on the balls 20, 21 is a drawer slide 22 of L-shaped cross section, the vertical flange of which is fixed to the side wall of the drawer. The relative travel of the three elements of the suspension is limited by buffers 27, 28, mounted respectively on the near end inner face of the web 11 of the floating slide 10 and midway along the horizontal portion of the L-shaped drawer slide 22. The buffer 27 engages with a finger 25 projecting upwardly from the lower flange 4 of the carcase runner 1 and the buffer 28 abuts against a lateral projection 31 of a latch 29 pivoted to the front end of the floating slide 10. The drawer may be removed after swinging the latch 29 upwardly about its pivot. Inward movement of the drawer and floating slide 10 is limited by a rubber buffer 32 mounted at the rear end of the floating slide.
Patent GB-1064668-A (GB)
Title: Edge type filter element
IPC: B01D29/11
Filed: 1964-07-08
Abstract: 1,064,668. Block filters. BENDIX CORPORATION. July 8, 1964 [Sept. 5, 1963], No. 28168/64. Heading B1D. A block filter comprises a corrugated ribbon 18 wound helically on edge with a thread 20 interposed between the convolutions. The ribbon may be paper or cellulose and is impregnated with phenol formaldehyde resin, and the thread may be stranded or twisted glass-fibre, nylon or cotton. In manufacture, the creped ribbon and thread are simultaneously wound to shape and the resin is then thermo - set, adjacent convolutions of ribbon bonding together to leave radial pores which are divided by individual strands of thread 20 into smaller pores (Fig. 4, not shown). The element is then cut to length, and may be used as a fuel filter (Fig. 1, not shown). Thread 20 may be close to the inner or outer surfaces of the filter, or in between, as shown.
Patent GB-158408-A (GB)
Title: Improvements in breeding cages
IPC: A01K31/06
Filed: 1919-11-14
Abstract: 158,408. Saxon, E. J. Nov. 14, 1919. Cages and the like; feeding and drinking appliances for animals.-A breeding-cage consists of a series of cages for the parent birds grouped with accessible detachable containers for holding food baths, and the young birds. The main cages 1, 2 3, 4, preferably have detachable sides 5, Fig. 4, each fitted with a central extension 6, having a barred opening 7, perches 23, and openings in its lower horizontal wall through which waste food falls into the tray 16. Further openings 9, 10, of which the former is filled with a shutter 11, are provided to allow admission to the other containers. The cages are grouped so that the container 13 holding the bath 15 and waste food tray 16 fits underneath the extensions 6, while that for the young birds rests on top, the food-container 20 being placed in between. Detachable trays 28 working on rubber discs may be provided at the bottom of the main cages.
Patent GB-896017-A (GB)
Title: Improvements in and relating to die-casting of metals
IPC: B22D17/24
Filed: 1958-09-04
Abstract: 896,017. Casting-machines. NATIONAL LEAD CO. Sept. 4, 1958 [Sept. 5, 1957], No. 28403/58. Class 83 (1). A die-casting machine comprises a core, a number of die segments, and guide means for directing the movement of said die segments away from the core in a direction having a component parallel to the direction of ejection of the casting and a component perpendicular to said direction, so that said segments are moved at angles other than 90 degrees with respect to the movement of the casting. Movable die parts 40 are mounted in the ejector die 20. After injection and solidification of the metal the ejector die 20 is moved away from the cover die 10 and ejector plate 70 is actuated to cause the casting 90 to be ejected by pins 74. At the same time pins 72 move guide blocks 50 in the direction of the cover die and the die members 40 are constrained to move outwardly in the guideways 52 in the guide-blocks 50, and upwardly along guideways 36 in the housing 32. The invention is applicable to cores.
Patent GB-636147-A (GB)
Title: Improvements in or relating to ball-pointed pens
IPC: B43K7/02
Filed: 1947-10-24
Abstract: 636,147. Reservoir pens. HAMEL, W. W, Oct. 24, 1947, No. 28408. [Class 146 (iii)] A ball-pointed pen has mounted within its barrel 12 a removable ink-containing cartridge comprising a straight tube 3 of easily-deformable plastic material which has a ball-point section 1 press-fitted into one end and a breather-plug 11 press-fitted into its other end. The tube may be cellulose acetate or polystyrene, and can be round or hexagonal in cross-section. The plug 11 is made of brass and has a knurled surface so that it allows air to enter the tube 3 but prevents ink leakage. A chamfered part 10 on the point section 1 facilitates the introduction of the part 6 into the tube. The cartridge is pressfitted into the barrel 12 which at its upper end is fitted with a removable plug 13 having a vent-hole 14. Specifications 573,747 and 637,331 are referred to.
Patent GB-1109697-A (GB)
Title: Heat exchange panel
Inventor: RASKIN WALTER
IPC: F28F3/12
Filed: 1965-07-05
Abstract: 1,109,697. Heat exchangers. DEAN PRODUCTS Inc. 5 July, 1965, No. 28410/65. Heading F4S. A heat exchanger panel comprises a pair of parallel spaced, planar, rectangular face plates 2, 3 having integrally formed therebetween a plurality of thin rectangular planar webs 4 parallel to each other and spaced apart so as to form a plurality of rectangular channels 5 interconnected by means of transversely aligned oval apertures 6 arranged towards one end of the panel. The apertures 6 extend longitudinally along the webs and number, in the centre web, half the total number of channels 5, their number progressively decreasing by one in adjacent outward webs. End plates 8, 9 close the opposite ends of the panel and inlet and outlet means (not shown) are fitted to either a face plate, 2, 3 or the end-plate 9, i.e the end remote from the apertures. The apertures may be bevelled (Figs. 6 and 7, not shown) to facilitate the flow of heat transfer fluid therethrough.