baber/WOPTO huggingface dataset:
Patent GB-1409741-A (GB)
Title: Nitrogen-containing organopolysiloxanes and use thereof
IPC: C08G77/38
Filed: 1972-02-07
Abstract: 1409741 Nitrogen-containing organopolysiloxanes IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Jan 1973 [7 Feb 1972] 5494/72 Heading C3T [Also in Division C5] Organopolysiloxanes (A) containing one or more groups of the formulµ with or without a proportion of groups of the formula NH 2 (CH 2 ) 3 Si #, the remaining Si valencies not attached to oxygen in the polysiloxane chain being occupied by monovalent substituted or unsubstituted hydrocarbon groups with or without a proportion of hydrogen, are prepared by reacting allylamine with an organopolysiloxane containing Si-H groups, preferably of the formula in the presence of a catalyst, wherein R is a monovalent substituted or unsubstituted hydrocarbon group; preferably methyl, phenyl of 3,3,3-trifluoropropyl, α=1-50, z=0-500. Preferred catalysts are platinum catalysts containing combined Pt, e.g. bis-(diethylsulphide) platinous chloride. The organopolysiloxanes (A) can be used to produce organopolysiloxanes (B) containing both gamma-amino-propyl and OR<SP>1</SP> groups where R<SP>1</SP> is a monovalent hydrocarbon group, hydrogen, a monovalent hydrocarbon group substituted by NR<SP>11</SP> 2  groups, an oxyalkylene group of the formula (C n H 2n O) c R<SP>11</SP> where n = 2 or 3 and c is 1-30, or a NR<SP>11</SP> 2  group where R<SP>11</SP> is hydrogen or a monovalent hydrocarbon group by reacting the organopolysiloxane (A) with an hydroxyl containing compound of the formula R<SP>1</SP>OH, optionally in the presence of a catalyst such as piperidine, diethylhydroxylamine, KOH or stannous octoate. Suitable OH-containing compounds R<SP>1</SP>OH include water, methanol, ethanol, butanol, isobutanol, benzyl alcohol, ethylene glycol, propylene glycol, ethanolamine, N,N-diethyl-ethanolamine, N,N - diethylhydroxylamine or a compound of the formula R<SP>11</SP>(OC n H 2n ) c OH. The organopolysiloxanes (B) may be represented by the average general formula where x=0À1-5, y= 1-100, z=0-500 and d=0-49. Uses.-Organopolysiloxanes (B) can be used as a detergent resistant additive in wax-containing polishes examples of which are given; as sizing agents for organic and glass fibres; as emulsifying agents; and as waterproofing agents.
Patent GB-608400-A (GB)
Title: Improvements in or relating to heat-insulating means for hot-water cylinders and the like
IPC: A61F7/08
Filed: 1946-02-22
Abstract: 608,400. Heat insulators. NADIN, Ltd., J., NADIN, A., BRIERLEY, D. V., and SIDDONS, J. T. Feb. 22, 1946, No. 5554. [Class 64(ii)] A heat insulating jacket c adapted to be wrapped round hot water cylinders &c. and secured along its lateral edges p after application is formed of inner and outer walls of textile fabric united by stitching along spaced lines g to form pockets e for packing material and intervening non pocket areas f. The packing may be preshaped or loose. A similarly formed cover j for the top of the cylinder is stitched to the upper edge of the jacket and by positioning of the jacket or slitting of the non-pocket areas, projections on the cylinder may be accommodated. Spaced bands r hold together the edges of the jacket which may also be secured by lacing &c.
Patent GB-1174696-A (GB)
Title: Improvements in or relating to Hydraulic Motors
Inventor: RATEAU ALEXIS
IPC: F04B43/00
Filed: 1968-02-05
Abstract: 1,174,696. Hydraulic reciprocating motors. A. RATEAU. Feb.5, 1968 [Feb.20, 1967], No.5671/68. Heading F1A. A hydraulic motor comprises a plurality of radial cylinders, Figs. 2 and 3 (not shown), each with a flexible piston member 14 located between a spring-loaded plate 16 and a member 12 engaging an eccentric 4 through a shoe 9 and a sleeve 7 supported by needle rollers 6, each cylinder having a pair of inlet ball valves 24, 25 and a pair of outlet ball valves 22, 23 actuated through push rod assemblies 50, 38, 42 by cam tracks formed on a cam-shaft 5 driven by output shaft 1. With inlet valves 24, 25 open, liquid from inlet manifold 21 passes through valve cylinder 29, passages 37, 36, valve cylinder 28 and passages 56, 57 and 17 to the motor cylinder. After rotation through 180 degrees, the inlet valves are closed and outlet valves 22, 23 opened, the liquid passing from the cylinder to outlet manifold 20 through passages 17, 57, 56, valve cylinder 27, passages 35, 34 and valve cylinder 26.
Patent GB-553092-A (GB)
Title: Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type
IPC: H01H1/38
Filed: 1941-09-25
Abstract: 553,092. Gas-blast switches. REYROLLE & CO., Ltd., A., and AMER, D. F. Sept. 25, 1941, No. 5673/43. Divided out of 553,063. [Class 38 (v)] A gas-blast switch comprises a conducting nozzle or vent through which the blast flows, at least three contacts connected to the terminal of the switch, two of which serve as arc-initiating contacts and are separable on the highpressure side of the nozzle and in a direction transverse to the blast, two other arcing contacts being provided to which the arc is transferred by the blast, of which one is on the high-pressure side of the nozzle (and may be constituted by one of the arc-initiating contacts), the arc extending through the nozzle into engagement with the second arcing contact on the low-pressure side of the nozzle, and an auxiliary electrode on the low-pressure side connected through a resistance to the contact on the high-pressure side. When the movable contact D is withdrawn from the fixed contact C under the blast-pressure, the arc drawn is blown through an aperture B in a conducting disc B<SP>1</SP> so as to extend between the movable contact D and an arcing contact E in connection with the fixed contact C. A resistance F<SP>2</SP> is connected between the movable contact D and an auxiliary electrode F, the function of which is to cause any reignition of the arc to occur between the auxiliary electrode and arcing contact E. In a modification, Fig. 3, the disc J', arcing contact K, and auxiliary electrode L are in a lateral branch of the main casing A containing the movable contact H<SP>2</SP> which is adapted to bridge contacts H, H<SP>1</SP> in the closed position. The resistance L<SP>1</SP> is arranged between the support G' and insulating lining G of the branch. The Provisional Specification refers to other modifications in details.
Patent GB-735294-A (GB)
Title: Improvements relating to fluid-operated roof-supporting units for use in mines and like places
IPC: E21D23/00
Filed: 1952-03-04
Abstract: 735,294. Mine roof supports. BOLTON & CO. (ENGINEERS), Ltd., A., and BOLTON, R. B. May 6, 1953 [March 4, 1952], No. 5679/52. Class 20 (2). A fluid-pressure mine roof supporting unit comprises a forward roof supporting ram 11 and a rearward roof-supporting ram 12 linked together by a double-acting ram 26, the opposite sides of the piston of which communicate respectively with the cylinders of the rams 11, 12. The ram 11 is mounted on the ram 26 the piston rod 18 of which is connected by a balljointed link 20 to the ram 12. The forward ram 11 communicates through a passage 87 with the after side of the piston 70 of the ram 26 and the rearward ram 12 communicates through passages 75, 74, 73 in the link 20 and rod 18 with the forward side of the piston 70. Thus when fluid is supplied to the forward ram 11 it is forced more powerfully against the roof and fluid acting behind the piston 70 of the ram 26 moves the rear ram 12 forward. Similarly the ram 12 is forced against the roof and the ram 11 moved forward. Sufficient pressure may be maintained in the ram 11 or 12 which is being moved to support the roof. Each ram 11, 12 comprises telescoping pistons 27, 31 which must rise together and when a shoulder 33 stops the outer piston the inner piston rises to apply the final pressure. Roof-engaging straps 46, 47 are mounted on spherical joists on these pistons and are connected by a sliding bar 60 hinged at 61 to the strap 47. A skid bar 92 protecting the mechanism is mounted on the front of the cylinder 26 by a pin 93 and the skid bars of neighbouring units are connected by an intermediate skid bar connected by sliding hinges, Fig. 5 (not shown). The pressure supply pipes of a battery of units may be inter. connected.
Patent GB-140196-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16D3/40
Filed: 1919-03-07
Abstract: 140,196. Peters, F. W. March 7, 1919. Channels and reservoirs in universal joints.- The trunnions 27 on the central cross 21 of a universal joint engage in blocks 12, 18 formed integrally with bolts 13 secured in flanged sleeves 3, 5 respectively fast and sliding on the shafts 1, 2. Plates 24, 31 sprung into position prevent escape of lubricant, which flows from a central reservoir 22 through channels 30, 29 to grooves 28 in the trunnions 27. Oil for lubricating the sliding sleeve 5 is retained at the end of the shaft 2 by a spring plate 7. Two spring plates secured together by a distance rivet may form opposite sides of the reservoir 22.
Patent GB-238179-A (GB)
Title: Improvement in apparatus for hoisting and distributing loose material
IPC: B66B17/26
Filed: 1925-03-02
Abstract: 238,179. Ransome Concrete Machinery Co. Aug. 5, 1924, [Convention date]. Shoots.-An appliance for hoisting and distributing concrete &c., comprises a mast, a guided skip, an outlet shoot extending through the mast and a distributing shoot pivoted to the mast and adjustably supported therefrom. The mast 10 has a head-frame 12 carrying sheaves 13 over which pass the hoisting cable 14 connected to the skip 15. The hinged gate 21 of the skip is opened when required by means of lever mechanism 22 operated by a pivoted and spring held trip arm 25. The outlet shoot 28 is pivoted to the mast and provided with curved arms 30 adapted to be engaged by the lower axle of the skip to remove the shoot out of the path of the skip and allow the skip to pass. The outlet shoot discharges into a distributing shoot 33 pivoted to a bracket 34 on the mast, its outer end being connected by a block and tackle connection 37 to a second bracket 36 which is preferably connected by a rod 39 to the lower bracket. A further block and tackle connection 40 connected to the upper bracket enables the brackets and distributing shoots to be adjusted in height.
Patent GB-242139-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F1/00
Filed: 1925-03-02
Abstract: 242,139. Barrett, H. R., and Lake & Elliot, Ltd. March 2, 1925. Jacks. - A lifting-jack of the kind having a variable fulcrum giving a high lift has a central extension in the form of pivoted legs adapted to support the load while the second fulcrum is brought into operation. The crutch 10 is connected by a parallel motion linkage 11 to a sleeve 4 slidably mounted on a pillar 2 on the base 1, the lower members 8 of the linkage being mounted on a pivot 6 in the sleeve and being formed as extensions of the operating lever 7. The sleeve carries a weighted pawl 21 adapted to engage teeth 22 on the pillar and the pivot 9 of the linkage carries a pawl 19 controlled by a lever 25 and adapted to engage teeth 5 on the sleeve. The pivot 9 also carries a pair of supporting legs 34 controlled by a lever 32. In operation, the lever 7 is moved downwards until the pawl 19 engages the top ratchet tooth 5. The trigger 36 is then released to free the catch 37 from the sleeve 31, pivoted to the lever 32, which operates the supporting legs 34, so that the legs swing down into the vertical position and rest in recesses 39, Fig. 5, in the base so as to support the load when the pawl 19 is released from the tooth 5 by manipulating t'he handle and trigger device 26. The lever 7 now fulcrums on the pivot 9 and is raised until the pawl 21 on the sleeve 4 engages one of the teeth 22 on the pillar as shown in Fig. 5. The handle now fulcrums. on the pivot 6 and a further lift is effected by raising the crutch until the pawl 19 engages the ratchet teeth 5. To lower the load the sequence of operations is reversed.
Patent GB-1243163-A (GB)
Title: Apparatus comprising a cathode-ray tube provided with an electron gun system for producing a number of electrom beams
IPC: H01J29/50
Filed: 1970-02-06
Abstract: 1,243,163. Colour telvision tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 6 Feb., 1970 [8 Feb., 1969], No. 5806/70. Heading H1D. In a colour television tube of the shadow mask type wherein three co-planar beams pass at different radial positions through a common focusing/converging lens, the pre-focusing effect of electrodes preceding the common lens is weaker for the outer beams than for the centre beam to compensate for the stronger focusing effect of the common lens on the outer beams. In Fig. 3 the three cathodes 6-8 are aligned with respective apertures in the first three grids 9, 30 and 34, and the pre-focusing effect of these electrodes is increased for the centre beam by the bulge in the centre of the second grid 30. In a modification, Fig. 2 (not shown), the second grid (13) is flat and the central aperture in the third grid (17) is smaller than the two outer apertures. The main lens comprises electrodes 24 and 25, and the third grid 34 is provided with an annular bulge 28 having the same diameter as the end portion 26 of the fourth grid. If the three guns have independent electrodes the required differences in pre-focusing may be achieved by using different potentials on the electrodes of the various guns.
Patent GB-1400123-A (GB)
Title: Bearing assembly
IPC: F16J15/32
Filed: 1973-02-07
Abstract: 1400123 Boring earth &c ATLANTIC RICHFIELD CO 7 Feb 1973 5941/73 Heading E1F [Also in Division F2] A well-drilling tool having a down-hole motor (not shown), has a bearing assembly comprising a shaft member 10, a housing member 26 coaxially-spaced therefrom, bearing means 36, 39, 65 and seal means 53 in the space 27 between the members, the seal means 53 being carried by one of the members 26, and a sealing surface 55 carried by the other member 10 in sealed relationship therewith and being laterally movable relative thereto. The sealing surface which comprises an annular sleeve 55 is mounted on the shaft 10 in spaced relationship thereto by means of annular snap-rings 56, the space between the sleeve 55 and shaft 10 being sealed by resilient seals 58. The resiliency of the seals 58 permits relative movement of the shaft 10 and housing 26 in the lateral sense without substantial movement of the sleeve 55, thereby ensuring that sealing contact between the seal 53 and sleeve 55 is undisturbed. In an alternative embodiment, Fig. 3 (not shown), the sleeve 55 is received in a circumferential recess in the shaft. In a further alternative embodiment, Fig. 4 (not shown), the shaft comprises two parts (10', 10") joined by a splined insert 105. The sealing surface is constituted by the peripheral surface of the insert (105) and the splined interconnections between the insert and the shaft parts (10', 10") are sufficiently loose to permit relative movement between the insert and shaft parts in the lateral sense. Lubricant is sealed in the assembly by means of an annular seal 33 and a displaceable-piston seal 80. The seal 53 may be of plastics or rubber and impregnated with a solid lubricant e.g. graphite or MoS 2 . The seal 53 also contains a plurality of layers of fibres, one or more of these layers being of porous material and one or more of material of greater tensile strength such as nylon or polypropylene. Drilling fluid is pumped through the shaft 10 and out through the drilling bit as shown by the arrows 23 and 25. The downhole motor may be electric or turbine operated.
Patent GB-909476-A (GB)
Title: Semiconductor devices
IPC: H01L21/22
Filed: 1959-02-20
Abstract: 909,476. Semiconductor devices. RADIO CORPORATION OF AMERICA. Feb. 20, 1959 [March 19, 1958], No. 6017/59. Class 37. A semiconductor device, particularly a fieldeffect transistor, comprises a body such as a plate or rod having a central core 13 of one conductivity type and a thin surface zone 12 of the opposite type ohmic contacts 16, 16<SP>1</SP> with the ends of the surface zone and a bandshaped electrode 11 having rectifying contact with the zone 12. In one example, an N-type germanium rod containing arsenic or antimony is dipped in copper nitrate and then heated at 750 ‹ C. for 10 minutes to diffuse copper throughout the body and convert it to P-type. An indium band electrode is then fused around the body which absorbs copper and restoring N- type conductivity to the surface layer. The indium as impurity predominates in the region immediately adjacent the electrode so that a PNP structure results. Ohmic electrodes 16 may consist of 99% lead and 1% arsenic and the electrode leads may consist of copper, nickel or a noble metal. In operation, the input signal is applied to gate electrode 11 which is reverse biased to produce a variable depletion region in layer 12, and the amplified signal appears in the output circuit between electrodes 16 and 16<SP>1</SP> due to current flowing through the N-type layer 12. The inner P- type zone 13 has no function electrically during operation. Nickel may be used instead of copper for forming the semiconductor structure, or indium doped germanium with lithium as the fast-diffusing impurity and lead-arsenic alloy as the band electrode may be used to provide an NPN structure. Alternatively, surface diffusion of phosphorus into borondoped silicon with a bond electrode of indium may be used to provide a PNP structure ; the ohmic end electrodes in this case may consist of 100 parts lead and 12 parts antimony, or of lead gold and donor impurity. Alloying may be promoted by the use of a fluorine salt. The semiconductor may also consist of indium phosphide or gallium arsenide or a germaniumsilicon alloy. A hole may be bored through the central zone for circulation of cooling fluid. Reference has been directed by the Comptroller to Specification 815,699.
Patent GB-555851-A (GB)
Title: Liquid level indicating and controlling device
IPC: G01F23/24
Filed: 1942-05-05
Abstract: 555,851. Indicating and controlling liquid levels. JUFFS, J. C., and BONNER, G. W. May 5, 1942, No. 6029. [Classes 116 and 123 (i)] A device for topping up batteries comprises a trolley 1 carrying a tank 2 containing the necessary liquid, and a flexible pipe 3 with nozzle 5 and handoperated valve 4. The body of the nozzle 6 forms an electrode which is insulated from a central electrode 7, the electrodes being bridged by the liquid in the battery when it rises to a predetermined level. The unit comprising the nozzle and valve also carries an indicator lamp 12. A battery 13 on the trolley is connected to the electrodes through a relay coil 16, which is energised when the electrodes 6, 7 are bridged to open a switch 17 in the circuit of the lamp 12. The lamp illuminates the nozzle 5, and when extinguished the valve 4 is allowed to close. Alternatively, the valve may be controlled automatically. The lamp circuit may be supplied by a separate battery.
Patent GB-1088381-A (GB)
Title: Improvements in electric stepping motors
IPC: H02K37/22
Filed: 1965-02-11
Abstract: 1,088,381. Electric motors. SUPERIOR ELECTRIC CO. Feb. 11, 1965 [Feb. 17, 1964], No. 6036/65. Heading H2A. [Also in Division F2] A stepping motor has a toothed stator cooperating with the toothed outer periphery of a rotor assembly with a viscous fluid present in the fluid-tight motor chamber to fill the stator/ rotor gap and thereby minimize the oscillations of the rotor on completion of a step. The rotor comprises a shaft mounted permanent magnet 19 with two polepieces 17, 18 which have teeth on their outer periphery and co-operate with wound stators 20, 21 which are shaped to provide a number of salient poles separated by winding slots where the face of these poles is also toothed. The stator windings may be energized from a 2-piece A.C. supply, or preferably from a D.C. supply in sequence, so that the rotor is stepped round. A sealed casing carrying bearings 14, 15 is filled with viscous fluid 39 through closable port 40. A seal 42 on the shaft prevents leakage at one end and a plate 36 of plastics material both closes the other end of the casing and acts as the terminal board. The amount of damping provided can be changed by using a different viscous fluid.
Patent GB-623122-A (GB)
Title: Improvements in doll head bearings for drying and calendering cylinders
IPC: D21G1/02
Filed: 1947-03-04
Abstract: 623,122. Hollow rollers. DILWORTH, J. March 4, 1947, No. 6105. [Class 34(i)] Between the bearing bush B or ball-race of the end A of a hollow drying cylinder or calendering roller to which steam or hot air is applied and the steam &c. supply pipe C an oil seal is provided comprising a flexible washer or packing D having a portion pressed against the surface of the roller end by means of a spring ring E. The lubricant for the bearing is supplied through pipe C<SP>1</SP> to the duct b in the bearing. The packing D is preferably mounted in a rigid annular member d.
Patent GB-1073053-A (GB)
Title: Floor and wall covering element
IPC: B44C5/04
Filed: 1965-02-12
Abstract: Wall or floor covering elements, e.g. tiles, are moulded from a mixture of an epoxy or an unsaturated polyester resin and a filler. The fillers may be e.g. dolomite flour when an unsaturated polyester is used or silica flour or aluminium flakes when an epoxy resin is used. The filler comprises between 2 and 92% of the working mixture.
Patent GB-857367-A (GB)
Title: Low expansion glass-ceramic and method of making it
IPC: C03C10/00
Filed: 1959-02-23
Abstract: 857,367. Glass. CORNING GLASS WORKS. Feb. 23, 1959 [March 3, 1958], No. 6204/59. Class 56. A transparent glass contains 53-75% by weight of SiOz, 3À7% of TiO 2 , 2-15% of Li 2 O and 12-36% of Al 2 O 3  the weight ratio of Li 2 O/Al 2 O 3  being between 0À1 and 0À6, the total of the named constituents being at least 95%. This has an expansion coefficient greater than 30 x 10-7 but is capable of conversion by heat treatment to a semi-crystalline ceramic which may be transparent and has a lower expansion coefficient and a higher deformation coefficient and contains a crystalline lithium aluminium silicate which is betaencryptite and/or beta-spodumene. The heat treatment may consist, for instance, in cooling after melting and then heating to between 650‹C. and 860‹C., or to a temperature rising between these limits at a rate depending on the thickness of the glass to initiate the crystallisation and finally heating, between 800‹C. and 1175‹C. for 1-4 hours until its expansion coefficient has decreased by more than 75% and its viscosity below 1200‹C. is infinite. The glass mixture may also contain small quantities of the oxides of Pb; Ba, Zn, Ca, K, Na, Mg. Specification 829,447 is referred to.