baber/WOPTO huggingface dataset:
Patent GB-1369286-A (GB)
Title: Tubular connector assembly of a nuclear reactor charge machine
IPC: G21C19/24
Filed: 1972-03-23
Abstract: 1369286 Fuelling reactors BBC BROWN BOVERI & CO Ltd 23 March 1972 [25 March 1971] 13765/72 Heading G6C A tubular connector assembly of a nuclear reactor charge machine, adapted to connect the charge machine to a standpipe of a nuclear reactor for the purpose of exchanging the moderator or fuel elements, comprises a pressure cylinder 2 with ports 3, 4 for the supply and discharge of pressure medium, e.g. hydraulic oil, and an annular skirted piston 6 axially slidable within the cylinder 2. The piston 6 is provided with an outer skirt 7 and a crown 9 having a central aperture. The skirt 7 is formed with ports 11 through which pressure medium flows from an annular duct 5 into the interior 12 of the piston. A tubular bellows 8 is secured at the top end to the cylinder 2 and at the bottom end to the piston crown 9 to form a duct extending from the aperture in the crown 9 to the interior of the charge machine by way of an aperture at the top end of the cylinder 2. The pressure medium is circulated by a pump 19 through the ducts 3, 4 and further ducts 17, 20 to a cooler 18. Pressurization of the interior 12 of the piston causes the piston to be advanced and thrust against the standpipe flange 14 to form a butt joint. Concentric ring seals 15 are provided in the piston crown 9 to ensure sealing between the flange and the piston. Depressurization of the piston interior results in retraction of the piston. The standpipes 13 and the associated flanges 14 are mounted in the reactor pressure vessel 16 flush with the platform 22 of the reactor. This connector assembly is particularly suitable if the exchanging operation has to be performed with the reactor on load. A more detailed construction (Fig. 3, not shown) includes a compensating ring (23) mounted by means of jointed and resilient elements (24) on the piston 6 to ensure a gas-tight connection even if there is misalignment between the piston 6 and the standpipe 13, also a system incorporating a pressure-equalizing vessel (31) for equalizing the pressures of the reactor gas and the pressure medium acting on opposite sides of the bellows 8, retraction of the piston 6 with this system being effected by the discharge of pressure medium into a pressurechamber (26) formed by a differential piston surface (26a) provided on the piston skirt 7 and a step in the wall of the cylinder 2.
Patent GB-546114-A (GB)
Title: Saw blade
IPC: B23D63/20
Filed: 1940-09-03
Abstract: 546,114. Saws. MULLER & CIE MASCHINENFABRIK UND EISENGIESSEREI AKT.-GES., A. Sept. 3, 1940, No. 13812. Convention date, Aug. 26, 1939. [Class 145 (ii)] In a saw blade of the double-pointed tooth type with a depression g, Fig. 2, between the points, the teeth have a hollow cross-section which may be limited to the front face of the teeth or may include both faces as in Fig. 5 and is formed by grinding or by direct pressing and swaging. In this way, the points f form the terminations of two lateral cutting edges which are swaged to lie outside the plane of the blade itself. These edges act on the work in advance of the transverse cutting edge formed by the depression between the cutting points and cut the separation surfaces in the work before the transverse cutting edge removes the material from the kerf.
Patent GB-138914-A (GB)
Abstract: 138,914. Automatic Telephone Manufacturing Co., (Assignees of Wicks, J.). Feb. 12, 1919, [Convention date] Automatic exchange systems; metering systems; party-line systems.-The operation of the calling subscriber's meter, by the reversal of his line current when the called subscriber replies, is delayed by a sluggish relay, so that the meter is not operated by accidental or momentary reversals, such as those due to ringing current in reverting party-line calls. A calling subscriber A is connected by line switches C, D to automatic selectors which complete the connexion in known manner. Metering is controlled by a set of relays E associated with the second line switch D. When the switch D is first seized, a circuit is closed through the meter Z (which does not respond at this stage) and the upper high-resistance winding of relay 9, and at the same time relay 22 is energized and removes a short-circuit from the upper winding of relay 23. When the switch D seizes an idle selector, the upper winding of relay 23 is energized in the line circuit, but this relay is designed so as to respond only when both its windings are in agreement, and is not energized at this stage, its lower winding (which receives current from the test circuit) being in opposition. When the called subscriber answers, the current in the calling line is reversed, in known manner, and relay 23 becomes energized and opens the circuit of relay 22. Relay 23 also prepares an operating-circuit for the meter Z through the lower low-resistance winding of relay 9, but this circuit is not completed until the sluggish relay 22 has taken its time to de-energize. The de-energization of relay 22 also short-circuits the upper winding of relay 23, to make it unresponsive to further line-reversals, the current in the lower winding of relay 23 being sufficient to keep it energized.
Patent GB-259867-A (GB)
Title: Improvements in massaging apparatus
IPC: A61H15/00
Filed: 1926-06-02
Abstract: 259,867. Pelli, M. R³ttger-. June 2, 1926. Massage.-A massaging apparatus consists of a casing rotatably mounted at one end of a handle and fitted on its front face with a number of projecting balls, means being provided for rotating either the casing relatively to the handle or the balls relatively to the casings. In the form shown, the casing a, which is rotatably mounted on the handle d and is driven from a flexible shaft m by a squared head f on the driving-shaft e. has a front plate l through which project several balls b. These are carried in split rotary holders c geared together by a belt i and supported by screws k. When the screws are retracted, the conical fronts of the ball holders are unclamped from the similarly coned openings in the plate l and the holders and balls can revolve freely. The central ball holder rests at h in a recess in the back of the casing and has a central squared recess n into which the squared end g of the shaft e may be moved axially to convey the drive to the ball holders. When the head g enters the recess n, the head f passes into a circular opening in the casing, tnereby ceasing to drive the casing.
Patent GB-333216-A (GB)
Title: Improvements relating to preparations for exterminating rats, mice, and like vermin
IPC: A01N59/26
Filed: 1929-05-06
Abstract: 333,216. Ball, C. May 6, 1929. Vermin-destroying compositions. - Poison for rats and like vermin consists of a paste containing finely divided zinc phosphide dispersed throughout an oily or fatty vehicle. Limited amounts of solid baits may also be added. According to examples the poison may consist of 2 parts of zinc phosphide stirred into 98 parts of benzoated lard or into 98 parts of tallow heated to a semi-fluid condition. Solids materials, which may be added to form about 10 per cent of the mixture, are baked maize meal, dried fish, fish meal, middlings or crushed maize. Other fatty or oily vehicles are cotton seed oil, olive oil, and mineral oil. The Provisional Specification refers also to the use of vehicles containing baked or uncooked crushed wheat or oats, biscuit meal, raw fish, rice, barley, maize and maize grits.
Patent GB-1210900-A (GB)
Title: Method of making spinel powder for use in forming sintered spinel bodies
IPC: C01F7/162
Filed: 1969-03-18
Abstract: 1,210,900. Spinel powder. WESTING- HOUSE ELECTRIC CORP. 18 March, 1969 [28 March, 1968], No. 14101/69. Heading C1A. Spinel powder is prepared by coprecipitating at a pH between 9À5 and 10, aluminium and magnesium from a hot aqueous solution containing aluminium and magnesium ions in the gram ratio of 2: 1 and firing the precipitate at a temperature between 400 and 1400 C. in order to totally convert the precipitate to a crystalline powder of spinel. In one embodiment a hot solution of aluminium and magnesium chloride is added to a buffered alkaline solution, containing preferably ammonium hydroxide and chloride, the pH of the latter being maintained by the addition of more alkaline solution. Alternatively an alkaline solution containing ammonium hydroxide is added to a solution containing aluminium, and magnesium ions and also an amount of oxalate ions equivalent to the amount of magnesium ions, in order to bring the pH of the latter solution to between 9À5 and 10. In the second case firing at 750-1400 C. is preferred and in both cases 800-1200 C. is most preferred.
Patent GB-575119-A (GB)
Title: Process for producing nicotinamide
IPC: C07D213/81
Filed: 1944-07-25
Abstract: Nicotinamide is prepared by the partial hydrolysis of 3-cyano pyridine with mineral acid, the hydrolysis being restricted by controlling the temperature and concentration of the acid. Preferably, concentrated (98 per cent) sulphuric acid is employed, the mixture of acid and 3-cyanopyridine being allowed to stand at a temperature not exceeding 30-35 DEG  C.; when more dilute acid is employed, higher temperatures can be used, boiling being suitable with 25 per cent sulphuric acid.  The temperature on mixing with concentrated sulphuric acid should not exceed 20 DEG  C. though may be allowed to rise thereafter to 30 DEG  C., but with concentrated hydrochloric acid, the temperature on mixing may be 35 DEG  C.  After hydrolysis, the reaction mixture is rendered faintly alkaline, for example by the addition of milk of lime, ammonia, or caustic soda, and then preferably treated to remove by-products, for example by filtration or decantation and if necessary extraction with a solvent to remove unchanged 3 - cyanopyridine and then evaporated to dryness. The nicotinamide can be extracted from the dried product with a solvent.  Examples describe the partial hydrolysis of 3-cyanopyridine to nicotinamide by means of 98 per cent w/w, 90 per cent w/w, and 25 per cent w/w sulphuric acid and 40 per cent hydrochloric acid.
Patent GB-473210-A (GB)
Title: An improved apparatus for demonstrating the properties of alternating electric potentials
IPC: G09B23/18
Filed: 1936-05-19
Abstract: 473,210. Converting; resistances; educational appliances. BUCKLE, C. May 19, 1936, No. 14190. [Class 38 (ii)] [Also in Groups XV and XXXVI] An arrangement for obtaining alternating potentials from a D.C. source comprises potentiometers 1, 2, 3 fed with D.C. from separate sources 4, 5, 6, the sliding contacts 7, 8, 9 being continuously reciprocated, and the potentials between them and centre tappings on the potentiometers being fed to centre zero voltmeters 10, 11, 12 mounted on a panel 24 on the front of a housing containing the potentiometers and their actuating gear. The latter is driven at low speed by a motor 17 so that slowly alternating voltages, the instantaneous values of which are indicated by the voltmeters, are produced. The apparatus is intended for demonstrating the properties of alternating currents and may include pointers 19, 20, 21 synchronously driven to provide a vectorial representation of the conditions. The driving gear comprises reduction gearing from the motor 17 to a crank-pin 36 which engages three cross-heads 40, 41, 42 coupled to the sliding contacts, or the crank-pin may be coupled to the contacts through connecting rods in which case the resistances may be graduated to compensate for the obliquity of the rods. For three-phase potentials the potentiometers are arranged at 60‹ with the connections of the centre one reversed. The potentiometer 1 may, however, be swung round and clamped by a screw 61 at rightangles to the potentiometer 2 to produce twophase potentials with the potentiometer 3 disconnected. According to the Provisional Specification, the crank and connecting rod mechanism may be replaced by cam and follower mechanism, or the potentiometer resistances may be arranged in a circle to co-operate with rotating sliding contacts.
Patent GB-182097-A (GB)
Title: Improvements in connecting and supporting devices for electric fixtures
IPC: H02G3/20
Filed: 1922-05-19
Abstract: 182,097. Benjamin Electric, Ltd., (Assignees of Benjamin, R. B.). June 23, 1921, [Convention date]. Supporting.-In a supporting and connecting device for electric fittings, the outlet box 10, within which is disposed a receptacle 11 carrying contact sockets, is covered by a plate 13 which has projections 26 adapted to engage hooks 17 formed in the walls of a cup 15 which carries the plug 16 carrying the contact blades 30 and, at its lower end, a screwed 'bush 25 adapted to receive the stem of the fitting. The plug 16 is secured within the cup 15 by inturned projections 27 on the latter engaging arcuate slots 28 on the plug so as to permit the part rotation of the cup necessary to engage the hooks 17. To prevent disengagement, the hooks have downward projections 20 which in the assembled position are accommodated in corresponding recesses formed in the projections 26 on the plate 13 and are resiliently held therein by reason of a spring 22 disposed between the plug 16 and the cup, but are positively locked after assembly by screwing a cover 23 over the bush 25 so that its upper end abuts against the plate 13. The plate is secured to the outlet box by screws 14 engaging key-hole slots in the former, the whole being covered by a member 41 or, alternatively, by a canopy 42 screwing directly over the bush 25 or, according to a modification, being secured in position by a second member screwing on to the bush. In a further modification the receptacle 11 is disposed exteriorly of the outlet box, being carried on a spider secured to the box, the cup 15 being secured to the spider by fastening arrangements similar to those described, and the canopy is adapted to engage bayonet-fashion the corners of the rectangular covering plate for the outlet box.
Patent GB-431428-A (GB)
Title: Improvements in connecting devices for use with insulated flexible electric conductors
IPC: H01R33/46
Filed: 1934-05-11
Abstract: 431,428. Electric - lamp holders. HUGHMAN, SIR E. M., 11, Castlemaine Avenue, South Croydon. May 11, 1934, No. 14273. [Class 39 (ii)] [See also Group XXXVI] A flexible conductor is anchored to a lamp-holder by means of cylindrical grooved projections round which the conductors make one or more turns before being attached to the terminals. The projections 8, 9, one for each lead, are provided on opposite sides of an insulating block 2 housing the terminals. The projections have peripheral grooves 11, may be roughened or serrated and may be surrounded by a projecting wall. A hole may be provided for receiving a tension cord when a conductor having such a cord is employed.
Patent GB-568709-A (GB)
Title: Improvements in or relating to the manufacture of plastic or elastic compositions
IPC: C08C19/24
Filed: 1941-11-05
Abstract: Synthetic rubber (including polymers of chlorbutadiene and butadiene-acrylonitrile) is reacted with an organic phosphine halide containing one or two aromatic radicles, if desired, in the presence of a Friedel-Crafts catalyst, to produce a plastic or elastic product.  Many phosphine halide compounds are listed, including some containing nitrogen, sulphur or oxygen.  Examples are given. p Organic halogen-phosphine compounds are made by reacting phosphorus trichloride with a phenol, thiophenol, aromatic amine or aromatic hydrocarbon; by treating a diaryl mercury with phosphorus trichloride; or by treating a suitable aromatic compound with phosphorus trichloride in the presence of a Friedel-Crafts catalyst. In an example, toluene is reacted with phosphorus trichloride and aluminium chloride.
Patent GB-1137584-A (GB)
Title: Process for selectively producing unsaturated aliphatic nitriles
IPC: B01J23/28
Filed: 1966-03-31
Abstract: 1,137,584. Nitriles. NIPPON OIL CO. Ltd. 31 March, 1966 [31 March, 1965], No. 14299/66. Heading C2C. [Also in Division B1] Unsaturated aliphatic nitriles are obtained by contacting mixtures of the corresponding olefins with oxygen, ammonia and optional amounts of an inert gas in the vapour phase at a temperature of from 300 to 600 C. and in the presence of an oxidation catalyst comprising compounds of Mo and Co, Ni, Mo and Co, P, Bi and Mo, P, Bi, Mo and Ca, P and Mo, or Sn and Sb, said process also being carried out in the presence of, or said catalyst being previously treated with elemental sulphur and/or a sulphur-containing compound. Products are preferably acrylonitrile or methacrylonitrile. Preferred sulphur compounds are hydrogen sulphide, sulphur dioxide, sulphur trioxide, thiophenes, mercaptans, sulphites or sulphonium compounds.
Patent GB-384560-A (GB)
Title: Improvements in or relating to automatic central buffer couplings
IPC: B61G3/16
Filed: 1932-05-20
Abstract: 384,560. Automatic couplings for railway and like vehicles. KRUPP AKT.-GES., F., Essen, Germany. May 20, 1932, No. 14306. Convention date, June 9, 1931. [Class 103 (v).] In automatic central buffer couplings of the type comprising two coupling heads each of which has a rigid jaw, a recess behind the jaw and a locking pawl, the pawl is mounted so that when draught forces are transmitted through the coupling, thrust is transmitted through the pawl and opposes the bending stress to which the jaw is subjected. Each coupling head A, A<1> is provided with a rigid jaw a<13>, a recess a<2> situated behind the jaw, guiding horns C and frontal contacting surfaces a<3>, a<4>. Each head A, A<1> is provided with a locking pawl D pivoted at E in such a way that thrust on it is not transmitted to the pivot pin but directly to the head A or A<1>. The pawl D is spring pressed by a spring F and is also provided with a locking spring G. The locking pawl is unlocked by means of a lever H pivoted at h<2> and engaging the pawl by means of a pin h<1> . The locking pawl in locking position projects through an opening a<6> and contacts by means of its concentric face d<1> with the edge of a recess a<7> in the opposing head so that when a draught force is applied to the heads a thrust is obtained through the locking pawl which thrust opposes the bending stress on the jaw a<13>. The locking pawls are interconnected when the heads are connected by transmission elements M. The pawls are returned to wholly or partially retracted positions by means of the lever H and the engagement of the spring G against the face a4 of the opposing head or behind an abutment in its own head. The locking spring G and the lever are provided with interconnected cords K<1>, K<2>. In a modification, the pawls P are provided with a concentric portion p<1> and a cam portion p<2> the latter of which during engagement or disengagement of the heads causes the pawls to retract. The pawls are released or locked by a lever R provided with two noses r<1>, r<2> adapted to engage alternatively with an abutment a<14> on a plate a<15>. The lever R is provided with a handle r<3> and is acted upon by a spring S.
Patent GB-1012901-A (GB)
Title: Improvements in turbine blade supporting structure
IPC: F01D5/30
Filed: 1963-04-10
Abstract: 1,012,901. Turbine blade fixing; jet propulsion plant. GENERAL ELECTRIC CO. April 10, 1963 [April 13, 1962], No. 14339/63. Headings F1J and F1T. An assembly for receiving hollow turbine blades to a rotor comprises a central hollow box member with flanged side plates attached thereto, the flanges projecting outwardly in a plane common to the radially outer side of the box member, profiled slots extending into the box member and side plates to receive the turbine blades, and means to connect the side plates to the rotor. An assembly 31, Fig. 3, for attaching tip turbine blades 26 to the fan blades 23 of a vertical lift engine comprises a series of turbine blade segments 30, each spanning two fan blades 23 and being bolted at 57 to an annular driving ring 56. Each segment 30 comprises a box member 36 to which are welded side plates 37, 38 having flanges 41, 42. Slots 45, Fig. 41 are machined in the box 36 and flanges 37, 38 to receive turbine blades 26 with internal supporting ribs 46. Platforms 50, 51, 52 are brazed to the blades 26 to provide further internal support. Additional offset stiffening side plates 34 are brazed to the side plates 37, 38 and each assembly 30 is bolted at 23a to tangs 25, Fig. 5, on the ends of the fan blades 23 through holes 39 in the plates 34. Tangs 25 extend with clearance through slots 58 in the driving ring 56. A seal 33 is provided. Shrouds 32 are brazed to the blades 26 but are not brazed to each other so as to act as vibration dampers.
Patent GB-148745-A (GB)
Title: Connection of wooden parts through a split ring-dowel engaging with circular groovesof the wooden parts
IPC: E04B1/48
Filed: 1920-05-26
Abstract: 148,745. Voss (nÚe Crenzien), B. July.30, 1919, [Convention date]. Addition to 143,869. Pins, dowel.-The splitrina dowel for connecting woodwork, described in the parent Specification, is formed with overlapping ends, Fig. 4, or with a tongue and slot, to prevent axial displacement of the abutting ends. Fig. 5 shows a modification in which a pin g fixed to one end passes through a slot in the other end.
Patent GB-243254-A (GB)
Title: Improvements in and relating to electric connection and switch boxes
IPC: H01R13/707
Filed: 1925-06-02
Abstract: 243,254. Glover, P. S. June 2, 1925. Two-part couplings combined with electric switches.-A plug 4 of lignum vitµ &c., carrying contacts 9, 10 connected to extension leads 13, 14 cannot be inserted in or withdrawn from a casing a, when a tumbler or other switch k contained therein is " on." The knob k<1> of the switch is operated by a forked lever t secured to a shaft o which passes through the lid of thecasing and is turned by a handle exterior to the casing. When the shaft o is turned counterclockwise from the position shown, the switch is opened and a cam r on the shaft then engages contact members g, g<1> pivoted at h, h' to a fixed insulating block f, and moves them against the action of springs i, j<1>, so that their ends i, i<1> are withdrawn from recesses 7, 8 in the plug 4. The plug can thereupon be withdrawn and the opening in the casing closed by a cover 18. When the plug is in position, the circuit is completed through the ends i, i' of the members g, g' contacting with the contacts 9, 10. A pin 17 in the casing co-operates with a slot 16 in the back of the plug to ensure correct positioning of the plug. Fuses may also be enclosed in the casing.
Patent GB-1371749-A (GB)
Title: Device for the adjustment of rollers in photogravure rotary printing  machines
IPC: B41F13/32
Filed: 1973-03-26
Abstract: 1371749 Feed rollers ALBERT-FRANKENTHAL AG 26 March 1973 [8 April 1972] 14423/73 Heading B8R A device for pivoting a feed roller 6, mounted on levers 4 which are carried by a support shaft 1, into contact with a forme cylinder (not shown) of a photogravure rotary printing machine in which device the support shaft 1 is hollow and mounted rotatably in side frames 2, 3, the pivoting of the roller 6 against end stops 7 being carried out by power means 11 connected to the support shaft by a connecting shaft 8 one end of which is provided with a coupling 9 disposed substantially at the mid-point of the support shaft and the other end of which is provided with a lever 10 acted upon by the power means 11. The power means may be a pneumatic cylinder whose piston-rod is connected to the free end of the lever 10.