baber/WOPTO huggingface dataset:
Patent GB-1390169-A (GB)
Title: Electric components
IPC: H01C10/20
Filed: 1973-06-06
Abstract: 1390169 Adjusting RC devices SPRAGUE ELECTRIC CO 6 June 1973 [6 June 1972] 27072/73 Heading H3Q [Also in Division H1] A variable electrical device, e.g. a capacitance or RC network as described in UK patent 1,307,665, comprises a housing 20, a bushing 13 extending from it, a substrate 41 having component elements on opposite surfaces thereof located within housing 20, two wiper type contact members (30), (50) (Fig. 2, not shown) engaging respective surfaces of the substrate, a shaft 11 and concentric sleeve 12 passing through bushing 13, rotation of sleeve 12 actuating contact member (30) and rotation of shaft 11 actuating contact member (50), shaft 10 also engaging in aperture 83 in closure member 80 of housing 20. Preferably, as shown, shaft 11 also actuates, through member 55, on-off switch 82. Contact member (30) comprises support disc 31 mounted to rotate with sleeve 12, and secured to it, resilient pad 32 and the wiper consisting of conductive portion 36, e.g. wire mesh, and insulating portion 33, e.g. polyethylene terephthalate the assembly being pressed against substrate 41 by spring 45 bearing against a shoulder within sleeve 12. Contact member (50) is similarly constructed. The contact members are provided with stop projections 39, 59 respectively, and, in an audio frequency system wherein shaft 11 operates an on-off switch and loudness control and sleeve 12 tone control, projection 25 on the casing may co-operate with U-shaped projection 38 on disc 31 to form a detent indicating optimum tone. Substrate 41, e.g. ceramic may be mounted on supports 26 on the casing and leads 23 brought out of the casing through slots 23a may secure the substrate in position. An earth strip 15 is located between bushing 13 and housing 20 and has leads 16 extending therefrom, which may be taken through slots in the housing to contact substrate 41.
Patent GB-1523395-A (GB)
Title: Charged particle irradiation apparatus
IPC: G21K5/04
Filed: 1976-06-29
Abstract: 1523395 Irradiation apparatus SUMITOMO ELECTRIC INDUSTRIES Ltd 29 June 1976 27112/76 Heading H5R In charged particle irradiation apparatus in which a beam of the particles is scanned in a plane through the angle #, to irradiate an object 14 of circular cross-section, e.g. a plastics coated cable drawn through the beam, a pair of magnetic field operating structures A and B are symmetrically disposed with respect to the centre line 16 of the scanning pattern, to ensure uniform irradiation of the object around its periphery, the structures producing oppositely directed D.C. magnetic fields normal to the scanning plane, and each structure having a non-uniform gap between its pole plates to produce a non-uniform magnetic field which is stronger near the centre line 16 than farther away, thereby producing the deflection pattern 16, 17, 18 shown in Fig. 1a. As shown, each structure includes a permanent magnet 19, and magnetic members 6, 7, and 20, and 10, 11, the members 10 and 11 being contoured at 15 to provide a space through which the cable 14 may be drawn. Reference is made to alternative arrangements in which the non-uniform gap is produced thus angling the members 6 and 7, or members 10 and 11 (Fig. 2, not shown), and to a structure in which the members 10 and 11 are connected by a further magnet (19<SP>1</SP>, Fig. 8, not shown) parallel to magnet 19. As described, the beam issues through a window 5. A plurality of pairs of magnetic structures may be disposed opposite a single particle transmissive window 5.
Patent GB-768642-A (GB)
Title: Improvements in or relating to articles of wearing apparel
IPC: A41B3/06
Filed: 1951-10-15
Abstract: 768,642. Garment stiffeners. TRUBENISED (GREAT BRITAIN), Ltd. Oct. 15, 1951 [Sept. 24, 1951], No. 27155/54. Divided out of 768,641. Class 141. Collars, girdles or other garments having parts, e.g. collar points, tending to curve away from the wearer have incorporated therein flexible strip-shaped elements 21, Fig. 1, which extend towards a free edge of such parts and have a contrary curving tendency varying in intensity from a maximum farthest from the free edge to a minimum near the free edge. When used for stiffening collars the flexible elements may be disposed along the edges or diagonally of the collar points and an extra lining, preferably unfused may be used to prevent the stiffeners from showing through unduly. The variable intensity of curving tendency along the length of the stiffener may be obtained by stiching an elastic e.g. rubber strip to a stiffened cotton tape as the tape is fed uniformly while the elastic strip is fed by an eccentric roll, as described and claimed in Specification 768,641.
Patent GB-1071877-A (GB)
Title: Preparation of hydrazine and substituted hydrazines
Inventor: NEEDHAM BRIAN JOHN
IPC: C01B21/16
Filed: 1963-07-10
Abstract: An organo-substituted hydrazine is produced by treating an aqueous solution containing a carbonyl derivative of said hydrazine with a cation-exchange material in the hydrogen form at a temperature in excess of 40 DEG  C., whereby the carbonyl derivative is hydrolysed to form the corresponding hydrazine and carbonyl compound, the hydrazine being retained on the cation-exchange material, which is thereafter treated with a base to liberate the substituted hydrazine. The carbonyl derivative employed may be (1) an isohydrazone, e.g. of formula <FORM:1071877/C2/1> wherein R1 and R2 are the same or different and are hydrogen, alkyl, substituted alkyl, aryl or substituted aryl or R1 and R2 together are a polymethylene chain, and R3 and R4 are the same or different and are hydrogen, alkyl, substituted alkyl or aryl; (2) an azine or (3) a hydrazone. In examples there are prepared (9) beta-hydroxyethyl hydrazine from N-betahydroxyethyl - methylethyl ketone hydrazone, (10) isopropylhydrazine from N-isopropyl acetone isohydrazone, (11) N-butyl hydrazine from N-butyl heptaldehyde isohydrazone, (12) sym-diethyl hydrazine from N,N1-diethyl methylethyl ketone isohydrazone and (13) phenyl hydrazine from acetone phenyl hydrazone.ALSO:<PICT:1071877/C1/1> An aqueous solution containing a carbonyl derivative of hydrazine or an organo-substituted hydrazine is treated with a cation-exchange material in the hydrogen form at a temperature in excess of 40 DEG  C., whereby the carbonyl derivative is hydrolysed to form the corresponding hydrazine and carboxyl compound, the hydrazine being retained on the cation-exchange material, which is thereafter treated with a base to liberate the hydrazine which is recovered. The carbonyl derivative may be an isohydrazone, hydrazone or azine.  The cation-exchange material preferably contains sulphonic, phosphonic or phosphinic groups and may be based on a styrene-divinyl benzene copolymer, an acrylate-divinyl benzene copolymer of an inorganic material.  In one embodiment granular cation-exchange material in column 1, between meshed filters 2 and 3, is fluidized by water pumped from the top of the column through heat exchanger 7 and pump 5 to the bottom of the column.  The solution of the carbonyl derivative is added through inlet 9 and hydrolysed in the column, the temperature of the circulating solution being raised by 7 to, e.g. 50 DEG  to 100 DEG C.  On completion of hydrolysis, the liquid in the column is drained through 10 and distilled to recover the aldehyde or ketone. The ion exchange material is washed with water and sprayed with aqueous NH3 through inlet 11.  The displaced hydrazine is collected in the NH3 solution from outlet 10 and is recovered, e.g. by distillation.  Any azine formed as a by-product when an isohydrazone is hydrolysed is recycled.  In examples hydrazine and organo-substituted hydrazines (see Division C2) are prepared.
Patent GB-247299-A (GB)
Title: Improvements in or relating to valves or taps
IPC: F16K41/14
Filed: 1924-11-14
Abstract: 247,299. North, W. C. D. Nov. 14, 1924. Lift valves ; casings.-A valve or tap comprises a body 1 secured to the inlet member 10, which provides a seating for a washer 12 on the closure member 2. The body 1 is flattened on two opposite sides so as to form two diverging portions 15, 15<A>, Fig. 5, which increase from the seating outwards. The closure member 2 is threaded to receive a screwed spindle 3 rotated by a handle 5.
Patent GB-1219243-A (GB)
Title: Substituted guanamines
IPC: C08G18/50
Filed: 1969-05-29
Abstract: 1,219,243. Jointing. E. I. DU PONT DE NEMOURS & CO. 29 May, 1969 [5 June, 1968 (2)], No. 27332/69. Heading B3V. [Also in Divisions C2, C3, C5 and D1] Aluminium-aluminium and steel-steel adhesion is obtained using a copolymer of (a) a compound of formula wherein Rf is a C 1-6  perfluoroalkyl group, m is 0 or an integer from 1 to 100, and each of R 1 , R 2 , R 3  and R 4  is hydrogen or a hydroxymethyl group and (b) 2,2-di-(p-glycidyloxyphenyl)-propane.
Patent GB-1184491-A (GB)
Title: Hydrostatic Braking Apparatus for Servo Control for Tractor Vehicle and its Trailer.
IPC: B60T11/16
Filed: 1967-06-13
Abstract: 1,184,491. Vehicle braking systems. REGIE NATIONALE DES USINES RENAULT. 13 June, 1967 [2 Aug., 1966], No. 27334/67. Heading F2F. An hydraulic braking system has a pair of brake pedals acting mechanically on a master cylinder and on control elements in the hydraulic circuit, the pressure in the master cylinder controlling a servo unit supplied by an hydraulic pump, the servo unit operating trailer brakes and also increasing the pressure in the master cylinder. The Figure shows a system with two pedals 9, 10 operating individual right and left wheel brakes of a tractor, such that if both pedals are simultaneously depressed, both brakes are operated at the same pressure. With the pedal not pressed (as 10) the brake line 13 is connected to a reservoir 25 through open valve 6 but cut off from the master cylinder 1 by closed valve 4. When a pedal is pressed (as 9) a cam 33 allows the spring-loaded valve 5 to close and cut-off the brake line 12 from the reservoir, while another cam 32 opens valve 3 to connect line 12 with the master cylinder via lines 34 and 35. Cam 33 also presses on a pin 37 at the end of a lever 11 to operate the master cylinder push member 14, the pressure being communicated to the chambers of valves 3 and 4 to operate one or both brakes. This pressure is also applied via line 20 to raise a piston 22 and valve 23 in the servo unit 2 so that a chamber 19 is disconnected from the reservoir 25 and placed in communication with a chamber 16 connected via 15 to an hydraulic pump (not shown). Chamber 16 also communicates via chamber 17 and line 18 to other hydraulic units on the vehicle. The upward movement of valve 23 throttles the connection between 16 and 17 so that pressure rises in chamber 16; this is fed back through chamber 19 and line 7 to give servo assistance to the master cylinder and through line 8 to operate the trailer brakes. The pressure rise is also applied through passage 29 to the top of the valve 23 which thus takes up an equilibrium position when the pressures on it balance. This position is also influenced by the upward movement throttling the hydraulic pump line at 42. If other units on the vehicle are in use such that the pressure in line 18 is higher than required to operate the brakes, the equilibrium position is such as to close the connection between 16 and 19, so that the braking pressure is independent of the pressure in line 18. If the pressure in line 20 rises above a certain value, a disc 30 shuts this off from the valve 23, and the equilibrium position of the latter is then determined by a spring 24. The apparatus shown may be constructed as a number of sub-units.
Patent GB-1404543-A (GB)
Title: Process for the production of active aluminium oxide in bead form
IPC: C01F7/025
Filed: 1973-06-08
Abstract: 1404543 Production of alumina in bead form BAYER AG 8 June 1973 [8 June 1972] 27334/73 Heading C1A A process for the treatment of aluminium oxide comprises (a) effecting partial dehydration of aluminium oxide trihydrate by heating it to a temperature of from 350-800 C. in from 0À1-1 sec. in a high-turbulence zone of a hot gas stream having a temperature of from 500- 1200 C., the hot gas stream entering an axially symmetrical reaction zone tangentially at a rate of flow of from 30-150 m./sec., and the partially dehydrated Al 2 O 3  having the heavily distorted crystalline structure of Chi-Al 2 O 3 , a specific surface (BE7) of >300 m.<SP>2</SP>/g., a residual water content of from 2-15% by wt., and a water absorption capacity at 50% relative humidity of more than 15% (b) grinding the partially dehydrated Al 2 O 3  until the screening residue on a 40 Á screen amounts to <20% (c) adding water and forming the Al 2 O 3  into shaped bodies and (d) drying and actuating the shaped bodies with a dry inert gas at from 200-500 C.
Patent GB-1407168-A (GB)
Title: 3,4-dehydro-piperidine derivatives
IPC: C08K5/00
Filed: 1973-06-08
Abstract: 1407168 Antiozonants for rubbers CIBAGEIGY AG 22 May 1974 [8 June 1973] 27354/73 Headings C3P and C3Q [Also in Division C2] Compounds of formula where X is S, SO or SO 2  and Y and Y<SP>1</SP> are individually H, OH, OÀ or C 1-4  alkyl, and salts thereof are used as antidegredants in natural and synthetic rubbers. Other antidegredants (many specified) may be present as may be fillers, plasticizers and vulcanizers. An example relates to styrene butadiene rubber.
Patent GB-392420-A (GB)
Title: Improvements in or relating to multi-spindle automatic lathes
IPC: B23B9/02
Filed: 1932-10-03
Abstract: 392,420. Lathes. B. S. A. TOOLS, Ltd., Armoury Road, Small Heath, and OGILVIE, W., c/o B. S. A. Tools, Ltd., Montgomery Street, Sparkbrook, both in Birmingham. Oct. 3, 1932, No. 27380. [Class 83 (iii).] A multi-spindle work turret lathe of the Gridley type having a central polygonal tool carrier 8 sliding on a central stem 7, and cross slides mounted near the turret for coacting with the work spindles, is provided with an overhead cam shaft 6 for operating all the tool slides. The cam shaft is mounted in bearings 12 in a beam 11 connected between a hollow standard 2 carrying the work turret and a standard 4 carrying the driving gearing for a central driving shaft 5 and for the cam shaft. The tool-carrier 8 has a bracket portion 9 guided at 10 on the beam 11 and is operated by a cam drum 15. The cam shaft also carries two pairs of face cams 17, 18. The upper cross slides 19 which are angularly arranged, Fig. 2, are operated from the cams 17 through levers 21, rock shafts 24, and arms 25. The lower cross slides are operated from the cams 18 through levers 26, 30, links 31, and levers 32, 34. The cross slides are adjusted by screws 35 connected to slotted lugs 36 forming part of the lever-operating mechanism. The overhead mounting of the cam shaft leaves the central part of the bed clear to receive turnings.
Patent GB-242637-A (GB)
Title: Improvements in or relating to bobbin-carriers for lace braiding machines
IPC: D04C3/00
Filed: 1925-10-31
Abstract: 242,637. Soc. Anon. des Etablissement Leflaive, and Knecht, J. J. Nov. 5, 1924, [Convention date]. Braiding-machines-The whole of the let-off and thread-guiding apparatus of the bobbin-carrier is mounted on a cap 5 removably attached by a spring catch 11 to the spindle 1 and forming a stop which prevents the bobbin from rising. The thread passes through eyes in the lower end of a weak spring 8, an angle piece 7, a pawl 6 and a guide 9. These parts are all mounted on the cap 5. The thread also passes through a porcelain eye 10, mounted either on the cap or on the spindle 1, and supports a tension spring 15, which disengages the pawl 6 from the ratchet 6<1> when the reserve of thread is used up. The use of the above described devices permits the thread supply to be of maximum size, as shown.
Patent GB-426644-A (GB)
Title: Improvements in or relating to the manufacture of separable fasteners
IPC: B29D5/02
Filed: 1933-10-06
Abstract: 426,644. Sliding - clasp fastenings. LIGHTNING FASTENERS, Ltd., Imperial Chemical House, Millbank, London.-(Sundbrack, G.; Meadville, Pennsylvania, U.S.A.) Oct. 6, 1933, No. 27608. Addition to 391,146. Drawings to Specification. [Class 44] The fastener elements and end stops of a fastening of the type in which a slider causes elements on two stringers to interengage are made of non-metallic material and are secured to the stringer tapes by first placing the elements in spaced relation thereon and thereafter applying a solvent to cause the jaws of the elements to adhere to the tape. With elements made of insoluble material an auxiliary bonding material of a soluble nature is applied to the jaws or to the tape prior to the application of the solvent. The spacing may be effected by a comb template or by a celluloid connecting strip which is dissolved away. The materials used may be cellulose esters, resinous polymerized unsaturated organic compounds, phenol-aldehyde resins, urea- or thiourea-aldehyde resins, polyhydric-alcohol-polybasic-acid resins, compressed impregnated paper or fibre, or polymerized methyl methacrylate which can be dyed. The solvents may be ethyl and butyl acetate at 27‹ C., with a 5 seconds immersion. With cellulose acetate elements the solvent is ethyl alcohol and lactate with acetone; with celluloid or xylonite elements the solvent is amyl acetate and acetone. The bonding material may be celluloid or xylonite.
Patent GB-760936-A (GB)
Title: A new or improved screw tapping tool
Inventor: BATES FREDERICK JOHN
IPC: B23G5/06
Filed: 1953-10-08
Abstract: 760,936. Taps. BATES & CO. (BIRMINGHAM), Ltd., F. Oct. 4, 1954 [Oct. 8, 1953], No. 27619/53. Class 83 (3). A screw-tap comprises a body 10 engageable by means for turning it, and a number of coaxial differentlysized thread-cutting elements 12 extending from each end of the body, elements of adjacent diameters being located at opposite ends of the body. The said means may be a tommy-bar engaging a hole 11 in the body or the body may be of non-circular cross-section for engagement by a wrench &c. Flutes 13, e.g. four in number, extend along the elements.
Patent GB-687837-A (GB)
Title: Improvements relating to collecting electrodes for electro-precipitators
IPC: B03C3/51
Filed: 1951-11-26
Abstract: 687,837. Electrostatic filters. HEINRICH. D. O. Nov. 26, 1951, No. 27642/51. Class 39(i) A collecting electrode for an electrostatic precipitator is constructed of straight U-channels mounted side by side in the direction of the gas stream with their side walls projecting alternately to one or other side of the electrode. Small fins d may be secured to both sides of the base e of each channel as shown. Dust catching strips extending horizontally across the channels may be provided at intervals down the electrodes. The edges of the fins are in all cases well rounded.
Patent GB-645017-A (GB)
Title: Improvements in single unit capacitor and resistor
IPC: H01G2/00
Filed: 1947-10-20
Abstract: 645,017. Condensers. RADIO CORPORATION OF AMERICA. Oct. 20, 1947, No. 28007. Convention date, Oct. 18, 1946. Drawings to Specification. [Class 37] A condenser has a ceramic dielectric in which is incorporated a finely - divided resistive material, whereby the condenser has both a usable capacitance and resistance. The ceramic which is preferably a mixture of 71 per cent barium titanate and 29 per cent strontium titanate, is mixed with magnetite, Fe 3 O 4'  in the proportions of 40 to 60. The mixture is pressed into a disc shape, fired at 2400‹ F., cooled, coated on each face with silver paste, and fired at 700‹ C. To incorporate the condenser in a circuit, e.g. the cathode circuit of a valve, a multi-armed terminal is secured to a metal disc soldered to one of the metal faces of the condenser, suitable means being attached to the other face to fix the condenser to a chassis.
Patent GB-902651-A (GB)
Title: Conveyor systems
IPC: B61B10/02
Filed: 1959-08-17
Abstract: 902,651. Conveyer systems. FREEMAN (ENGINEERS) Ltd., A., and FREEMAN, A Nov. 9, 1960 [Aug. 17, 1959], No. 28035/59. Class 104 (2). In a conveyer system in which load carrying trolleys 1 are movable along a fixed track 2 by driving-members 19 on a driven chain 3 running in a guide 4 adjacent the track 2, the separation of the track 2 and the guide 4 is increased at desired stations C so that if desired the trolleys 1 can be stopped (as by a stop 23) and the driving- members 19 ride over the coupling parts 10 of the trolleys; at other stations D, the separation is such that disengagement of driving and coupling members always occurs. Each trolley has a stirrup 10, Fig. 2, which is engaged by a member 19 spring-loaded at 21 to tend to rotate clockwise against abutment 18 about axis 15 on one side of a plate 13 depending from chain 3. When the separation a between guide 4 and track 2 increases to b, the member 19 is shaped to rotate anti-clockwise and disengage from the stirrup 10. A stop 16 is mounted on the other side of plate 13 so that on a down-hill section B, the trolley is prevented from running away.
Patent GB-462814-A (GB)
Title: Improvements relating to bucket dredges and similar endless conveyor mechanisms
IPC: E02F3/12
Filed: 1936-10-15
Abstract: 462,814. Endless tracks for vehicles. HUTTON, G. H. Oct. 15, 1936, No. 28040. [Class 79 (i)] [Also in Groups XXX, XXI, and XXV] In endless tracks for vehicles wherein the track members are connected together by L-headed pins, the lateral surface of at least one forward eye stock of each track member is provided with a recess 3 having an arcuate surface 6 struck about a centre c eccentric of the centre a of the eye 7 through which the pin having the L-head 5 passes, the surface 6 being engaged by the end surface 9 of the pin head which is struck about a centre e. Owing to wear the eye stock assumes a position 8 and the L-head tends to rotate in the clockwise direction from the initial position shown in full lines to that shown in dotted lines. In a modification, the eye stock and recesses are double-ended so that the pin head may be arranged to co-operate with either one end or the other.
Patent GB-897446-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: LONG EVERETT
IPC: G21C11/02
Filed: 1958-09-01
Abstract: 897,446. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Aug. 10, 1959 [Sept. 1, 1958], No. 28077/58. Class 39(4). A neutron shield provided with passages has a shielding device in each passage, the shielding device having a plurality of surfaces arranged so as to scatter neutrons and thereby cause them to be absorbed in the neutron shield whilst permitting a flow of fluid coolant through the passages without substantial pressure drop across the neutron shield. The shield may be an internal neutron shield 2, Fig. 1, of a gas-cooled graphite-moderated nuclear reactor and is supported from the moderator 5 by a plurality of feet 3 mounted in sockets 4 which allow some angular movement. A plurality of passages aligned with the fuel channels pass through the shield 2 and each contains a shielding device 8 which prevents neutron streaming but allows passage of the coolant gas. The device 8 comprises a central rod covered with a sheath provided with a plurality of helical fins 11 and arranged within a tube 12 which is a good sliding fit within a tube 13 lining the passage. Each shielding device is connected by an upper extension 14, Fig 4, of the outer tube 12 and an upper extension of the central rod to a biological shield plug 16 and by lower extensions of the outer tube and central rod to a train of fuel elements 19 connected together by articulated or universal joints. The connected biological shield plug 16, shielding device 8, and train of fuel elements 19 can thus be withdrawn from or placed in operative position as a complete unit by the usual charge/discharge machine operating at the charge face of the reactor. The shielding device 8 need not be of neutron absorbing material such as boron steel but may be of stainless steel since its function is to scatter neutrons. The shield 2 is preferably formed from alternate layers of boron steel and graphite and should be thicker than normal if the devices 8 are not of neutron absorbing material. Specification 873,073 is referred to.