baber/WOPTO huggingface dataset:
Patent GB-611629-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L23/16
Filed: 1946-03-01
Abstract: 611,629. Railway signalling systems. WEST INGHOUSE BRAKE & SIGNAL CO., Ltd., and SHIPP, D. G. March 1, 1946, No. 6396. [Class 105] A railway signalling system using alternating current track circuits with direct-current relays supplied through a track circuit transformer and rectifier system, is protected against false operation by stray current from an adjacent section, where the track-circuit current is in anti-phase, by providing a local alternating current to serve as reference voltage and derived from the same source as the track current, such local source being connected between the mid-point of the secondary of the track circuit transformer and the mid-point of the tworectifier feed line to the relay. In the rectifier circuit shown in Fig. 1, a local alternating- current reference voltage from a supply source 3 is inserted in a line between the mid-point of an impedance R and the mid-point of the secondary winding of a transformer T, the primary winding of which is fed from the track circuit, denoted in this Figure as a supply source 2. When the voltages VT, VL of the transformer secondary and of the local source are operating in the same phase sense, then, due to the rectifiers 1, there arises across the impedance R a resultant direct current voltage VR which becomes reversed if the transformer secondary voltage should become in anti-phase as by the transformer being energized by leakage from an adjacent section. A polar biassed direct-current track relay is placed across the impedance R and is therefore not operated by such leakage current. Fig. 2 shows the connections of adjacent track sections A, B. Track circuit current is supplied at the exit ends of the sections A, B by transformers ATF, BTF while the track relays ATR, BTR of direct-current polar biassed type are connected at the entrance ends of the sections through a rectifier and transformer circuit with inserted local voltage source ALT, BLT, all of the form described above with reference to Fig. 1. The track supply ATF and local voltage source ALT for section A are in anti-phase to those of section B. The voltage VR across the' impedance R rises only to an upper limit as determined by the local source voltage VL however much the track voltage VT is increased. The impedance R and single relay may be replaced by a mid-tapped or two-winding relay also of polar biassed type with snubbing condensers or rectifiers.
Patent GB-826819-A (GB)
Title: Improvements in vehicle sun visors
IPC: B60J3/02
Filed: 1958-02-27
Abstract: 826,819. Sun visors. HAPPICH G.m.b.H., GEB. Feb. 27, 1958 [March 2, 1957], No. 6416/58. Class 103(2) A sun visor for vehicles comprises a flexible, air tight casing 1 of plastic foil filled with a cushioning material. An outlet 7 for the air within the casing operative in the event of compression, is formed where a supporting rod 2 enters the casing wall 6, the edges of which outlet lip the rod. A protective cap 8, which fixes over the outlet, has an opening for the rod and provides a space 9 between the casing and cap for the outlet of air.
Patent GB-1210591-A (GB)
Title: Tyre building apparatus
IPC: B29D30/30
Filed: 1968-02-09
Abstract: 1,210,591. Apparatus for adjusting moving breaker strips relative to a reference plane. UNIROYAL ENGLEBERT FRANCE. 9 Feb., 1968 [17 Feb., 1967], No. 6433/68. Heading B7C. [Also in Division B8] Apparatus for adjusting a longitudinally moving strip of material, e.g. a breaker strip, relative to a reference plane, e.g. the midcircumferential plane of a tyre building drum comprises a frame supporting carriages movable towards and away from one another and the reference plane, each carriage having one endless belt for supporting the strip horizontally and another endless belt for contacting the side edges of the strip and adjusting the position of the latter relative to the reference plane, the first-mentioned belts being coplanar, and means independent of the strip for driving at least one of the belts at a predetermined speed. The belts may be provided with toothed inner surfaces, and be driven through appropriate gearing.
Patent GB-1469042-A (GB)
Title: Collector for dissolved uranium
IPC: B01J20/26
Filed: 1975-02-17
Abstract: 1469042 Recovering uranium KURARAY CO Ltd 17 Feb 1975 [25 Feb 1974] 6612/75 Heading C1A [Also in Division C3] Uranium is recovered from sea water and like sources by contact with a uranium collector comprising the reaction product of (a) a polymer containing an acidic or nitro radical and also an alcoholic hydroxyl radical, and which has been prepared by saponifying or hydrolysing a copolymer of a monomer containing an acidic or nitro group with a monomer containing a function group which yields an alcoholic hydroxyl group on saponification or hydrolysis, and (b) a titanium compound. Numerous polymers are suggested, and the titanium compound may be alpha-titanic acid, a titanic acid ester or titanium sulphate. In examples, the uranium collectors prepared and used are derived by reacting alpha-titanic acid with vinyl alcohol/maleic acid copolymer.
Patent GB-1078090-A (GB)
Title: Refractory
IPC: C04B35/01
Filed: 1966-02-15
Abstract: A composition of fused cast refractory particles comprises at least 40% MgO by weight and at least one other ingredient from the following: (i) up to 30% FeO, CaO, BaO, SrO or mixture thereof; (ii) up to 58% Cr2O3; (iii) up to 40% Al2O3; (iv) up to 18% TiO2; (v) up to 5% SiO2; (vi) up to 7% F, where the sum of the MgO plus other ingredients constitute at least 95% of the particles by weight. According to the invention the mixture comprises by weight 40-70% coarse, 0-20% medium and 20-50% fine particles, each range having a specified cumulative particle size distribution.  The particle composition of the invention may be mixed with a waxy polyethylene glycol and a lignin sulphite binder, pressed and fired to produce a burned refractory article, or moulded with a bonding agent (e.g. H2SO4, MgSO4, NaHSO4, sulphite liquors, HCl, MgCl2, chromic acid, sodium chromates, sodium silicate, quick-setting cements, dextrin, starch, sugar, linseed oil, pitch, tar and tall oil) and optionally a humectant (e.g. glycerin) or wetting agent (e.g. dioctyl sodium sulphosuccinate) and plasticizing agent (clay material) and then dried to give an unburned refractory article.
Patent GB-400491-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B9/10
Filed: 1933-03-04
Abstract: 400,491. Knitting. KAFKA, H. and MULLER, W., 7, Zeile, Br³nn, Czecho- Slovakia. March 4, 1933, No. 6669. [Class 74 (ii).] To enable transfer operations to be carried out on the superposed-cylinder type of knitting- machine without reduction of speed, the needles are disengaged from their jacks or sliders x by the combined action of a fixed bridge-piece 3 and a resilient bridge-piece 5. Each needle hook is normallv received in a cavity of the jack, the walls of which do not however grip it.
Patent GB-394441-A (GB)
Title: Improvements in apparatus for the extrusion of metal
IPC: B21C23/30
Filed: 1932-03-05
Abstract: 394,441. Squirting. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and DUNSHEATH, P., Hesket, Church Avenue, Sidcup, Kent. March 5, 1932, No. 6680. [Class 83 (iv).] An extrusion press especially for forming tubes or sheathing cables of the type in which the metal is impelled towards the die by a screwthreaded member, has helical projections formed both on the inner member 6 and on the outer member 1, the threads being of opposite hand. The central member 6 may be stationary and the outer may rotate, or both may rotate in opposite directions, in the latter case no rotation of the metal occurring if the pitches are equal. In order to check rotation of the metal at the outlet end, when this occurs, the legs 9 of the spider supporting the die may be formed to convert the helical movement into one parallel with the axis, or this effect may be produced by the presence of the spider without special shaping thereof. Alternatively the final part of the thread on the member 6 may lengthen in pitch which change may occur gradually over a considerable portion of the length, or be confined to the extreme end. The threads on the outer member may decrease in pitch as those on the inner member increase. The threads on the main portions may be of equal pitch, and make an angle of 70‹ or more with a plane through the axis.
Patent GB-979079-A (GB)
Title: Improvements in nuclear reactors
IPC: G21C7/32
Filed: 1962-02-21
Abstract: 979, 079. Nuclear reactors. SOC. ANGLOBELGE VULCAIN S.A. Feb. 21, 1962 [March 9, 1961], No. 6688/62. Heading G6C. The distribution network for a fluid flowing through a nuclear reactor, for instance the moderator, comprises elastic branches to allow for thermal expansion. In Fig. 3 moderator flows from an inlet manifold 1 through branches 2 to outlets 3 leading to moderator chambers (not shown). The branches 2 are formed by fairly thin tubes which are curved so as not to be absolutely rigid in the plane of the figure. In another arrangement, Fig. 4 (not shown), one of the branches 2 is of helical form. The moderator may flow from inlets at the bottom to outlets at the top of the moderator chambers. Fig. 1 (not shown), or the chambers may be of reentrant form, (Fig. 2 not shown), with the inlets and outlets at the bottom of each chamber. Specification 963,618 is referred to.
Patent GB-1499877-A (GB)
Title: Brake control apparatus
IPC: B60T8/26
Filed: 1974-02-14
Abstract: 1499877 Electropneumatic braking systems WESTINGHOUSE BRAKE & SIGNAL CO Ltd 7 Feb 1975 [14 Feb 1974] 6811/74 Heading F2F A brake control apparatus, for electro-pneumatic brakes wherein the control apparatus responds to a control signal current transmitted in a signal conductor communicating to a plurality of vehicles in a train, includes a control signal input, an A.C. signal input and gating means responsive to a variable mark to space ratio signal, when applied at the control signal input for gating portions of an A.C. signal when supplied at the source terminals and means responsive to the output of the gating means for controlling the brakes. Of three basic train lines, line 3 carries the control input to the analogue blending unit 1, line 4 is an A.C. supply line, the interruption of which is effective to cause a brake application and line 5 constitutes a brake release train line energizable by the train driver to effect the release of a brake controlled by an analogue blending unit which may for some reason fail to release the brake in response to the control line. The input signal to blending unit 1 is derived from line 3 and is constituted by a variable mark-to-space ratio D.C. signal which is A.C. coupled via an isolating stage 8, consisting of a resistor and diode to eliminate spurious signal spikes, to an inverter 9 the output of which is applied to a power gate circuit 10 whose output is in turn applied to a line 6 via a low-current relay 19. The output of an amplifier 13, whose input is derived from a load-responsive transducer 15, is also applied to relay 19. A feedback signal from the electrodynamic brake is supplied through line DB to supplement the current in line 6 and thus reduce the braking demand of the electropneumatic converter 21 in proportion to the electrodynamic braking effect.
Patent GB-334489-A (GB)
Title: Improvements in or relating to thread cutting or chasing machines
IPC: B23G1/02
Filed: 1930-03-01
Abstract: 334,489. Hahn, H., Hahn, O., and Tessky, K., (trading as Index Werke Hahn & Kolb). March 1, 1929, [Convention date]- Lathes.-A tool 25 is mounted on an axially reciprocating carriage 24 which in turn is mounted on a carriage 26 movable to and from the work 2. Axial traverse is effected from a guiding mandrel 10, engaged by a half nut 11, through a collar 21 and forked lever 23, the half nut being carried on an arm which, together with the collar 21, is attached to a longitudinally slidable sleeve 14 on a shaft 16. At the end of a cut a lever 18 engages a cam 20 which raises it, and rotates sleeve 14 thereby releasing the half nut 11 from engagement with the mandrel 10 and allowing the tool to return to commence another cut under the action of a spring 37, the tool being simultaneously withdrawn perpendicular to the axis of the work by gear segments 27, 28 and a wedge 31 engaging a peg 32 on the carriage 26. A lever 17 and cam 19 feed the tool in to the cutting position after this longitudinal movement has taken place. To effect a rapid and positive engagement of the lever 18 with the cam 20, the latter may be slidably mounted on its shaft and be adapted to be forced into engagement with the lever by a pivoted lever 40 just before the normal engagement would take place. The machine may be adapted for cutting female threads. Rotation of a cam 7 rocks a lever 8 connected to a clutch 9 to stop the machine.
Patent GB-760504-A (GB)
Title: Improvements in or relating to a method of welding
IPC: B23K9/14
Filed: 1954-03-09
Abstract: 760,504. Welding by fusion. KRAFTANLAGEN AKT.-GES. March 9, 1954 [March 10, 1953], No. 6828/54. Class 83 (4). [Also in Group XXIII] To ensure an even circumferential seam when arc-welding the ends of two horizontal axiallyaligned pipes, the pipe ends are temporarily deformed by internal or external clamps to the shape of an ellipse with the major axis horizontal so that the annular gap between the pipe ends is wider at the sides than at the top and bottom of the pipes. This method is particularly applicable to automatic welding in which a semi-circular coated electrode 8, Fig. 1, is secured in the gap between the pipes R1, R2 which are held together and deformed by a clamp consisting of a connecting member 1 rotatably connected to U-shaped steel pads 2, 3. The pressure is applied by a screw 5. Inserts 9 of a non-magnetic material such as copper or aluminium are provided in one or more of the arms of the pads 2, 3. In a modification, Fig. 3, an internal clamp consisting of a toggle 10 secured to a nut 14 and two shoes 11, 12 connected by threaded projections 13 to the nut 14 and the toggle 10, respectively, is inserted in one of the pipe ends and pressure is applied by rotating the nut 14. The other pipe end is deformed by an external clamp and fitted over the internal clamp. The external clamp is removed, the seam welded and finally the toggle 10 is collapsed by pulling on a cord connected to a lever 15. One or more pads 18 of non-magnetic material may be fitted to the shoes 11, 12.
Patent GB-1514425-A (GB)
Title: Vinegar production and other fermentation processes
IPC: C12J1/00
Filed: 1976-02-20
Abstract: 1514425 Vinegar; fermentations GISTBROCADES NV 18 Feb 1977 [20 Feb 1976] 6841/76 Headings C6E and C6F [Also in Division C3] Bacterial continuous fermentation processes, exemplified by the fermentation of ethanol by Acetobacter to produce vinegar, are carried out in a fermentation medium in the presence of a hydrous oxide of titanium, vanadium, zirconium, iron or tin and a chelated polyhydroxy support having the effect of aggregating the bacterial cells. Where the bacterial cells produce extra-cellular cellulose themselves, e.g. strains of Acetobacter xylinus, only the hydrous metal oxide or, alternatively, e.g. titanium-chelated lactose, titanium citrate or titanium urea which hydrolyze at the pH of the fermentation medium, need be added. Otherwise, the hydrous metal oxide is chelated to a polyhydroxy support material before addition to the fermentation medium. The support may be of cellulose, wood, sawdust, water-insoluble or crosslinked polysaccharides, glass and other silaceous materials as powder, beads or fibres. The hydrous titanium oxide may be prepared by hydrolysis of titanium tetrachloride, titanium-chelated lactose, titanium citrate, titanium urea or titanium acrylamide.
Patent GB-1281672-A (GB)
Title: Method of forming o-ring grooves
IPC: B21D22/10
Filed: 1970-02-12
Abstract: 1281672 Forming from a tube CATERPILLAR TRACTOR CO 12 Feb 1970 [19 Feb 1969] 6879/70 Heading B5A A tube is deformed, e.g. to form 0-ring grooves therein, by placing it in a grooved die, placing a resilient member in the tube and compressing the resilient member by a force coincident with the tube axis to expand it radially into the die cavity, thereby deforming the tube. As shown in Fig. 1, the tube 10 is placed in a die formed by split moulds 12, 14 against a stop 18 of mould collar 20. A resilient member 21, e.g. of polyurethane is placed in the tube and compressed by hydraulic pressure applied to plunger 22 having head 24. Member 21 is expanded laterally thereby,- forming the tube against die cavity 26.
Patent GB-563699-A (GB)
Title: Improvements relating to fluid control valves
IPC: F16K31/50
Filed: 1943-05-03
Abstract: 563,699. Valves. KELLOW, C. L. May 3, 1943, No. 6931.. [Class 135] A valve adapted to be opened or closed rapidly is actuated by means comprising a rotating bridge travelling on self-locking helices and provided with a self-locking square thread engaging a hollow cylindrical bottle nut. In the form shown in the Figure, the bridge G has projections H and rollers J adapted to cooperate with two helical threads formed on the inner surface of a cylinder A secured to the valve body in place of the usual bridge. The actuating spindle K is rotatably mounted in a cover L for the cylinder and is formed with a pair of keys M engaging slots in the nut D. The nut D has a thread F engaging the bridge G and a stop collar adapted to limit relative movement when closing the valve. When opening the valve, rotary motion is transmitted to the bridge by a friction drive provided by a spring P.
Patent GB-695493-A (GB)
Title: Process for producing alpha-mercapto-carboxylic acids
Filed: 1951-03-22
Abstract: Alpha mercapto carboxylic acids are made by reacting an alkali metal salt of an alpha monohalo carboxylic acid and an alkali metal thiosulphate in an aqueous medium to yield an intermediate carboxylic thiosulphate which is hydrolysed with sulphuric acid of such concentration that on completion of hydrolysis it is of strength 25 to 40 per cent, preferably 30-35 per cent, by weight. Dithio acids formed during hydrolysis are reduced to thio acids and the latter recovered by solvent extraction, e.g. with butyl or isopropyl ether followed by fractional distillation or salting out, e.g. with aqueous ammonia.  Alternatively thio- and dithio acids may be extracted together and the latter reduced in the extract.  Specified products are thioglycollic, thiolactic and phenylthioglycollic and -thiolactic acids.  In examples: (1) an intermediate obtained from sodium chloroacetate and sodium thiosulphate is hydrolysed with 70 per cent H2SO4 at 80-85 DEG  C., the aqueous hydrolysate treated with zinc dust, extracted with butyl or isopropyl ether and aqueous ammonia added to salt out ammonium thioglycollate and in (2) the hydrolysate of (1) is extracted with either of the ethers, the extract treated with zinc dust and sulphuric acid and the thio acid recovered as in (1).
Patent GB-848311-A (GB)
Title: A process for polymerising siloxanes
IPC: C08G77/00
Filed: 1959-02-27
Abstract: A siloxane of the formula <FORM:0848311/IV(a)/1> is polymerized by interaction in the absence of moisture with a silane of the formula R1mSiX4-m in such an amount that during at least the latter portion of the reaction the ratio of X groups to Si OH is not greater than 1, wherein in said siloxane and silane each R and R1 is a monovalent hydrocarbon or halogenated hydrocarbon radical, X is a halogen atom, n is at least 150 and m is 1, 2 or 3.  R and R1 may be alkyl, alkenyl, cyclo-aliphatic, aralkyl, aryl or halogenated aliphatic or aromatic hydrocarbon radicals.  The reaction, which occurs upon mixing the two reactants, is preferably carried out at a temperature below 50 DEG  C.  The products can be freed from Si-bonded halogen and from any residual hydrogen halide as by washing or by neutralisation with alkali.  The products may be homo- or co-polymers.  Trifunctional silanes act as cross-linking agents to produce three dimensional polymers, and can thus be used to cure diorganosiloxanes ; difunctional silanes produce linear halogen-terminated polymers ; and monofunctional silanes produce triorganosilyl endblocked polymers.  Examples are given. Uses : the products are useful in making siloxane elastomers, or where end-blocked with triorganosilyl groups can be used per se as stable liquids.
Patent GB-970674-A (GB)
Title: Machine for cleaning street and the like surfaces
Inventor: LUST WERNER
IPC: E01H1/08
Filed: 1962-02-22
Abstract: 970,674. Vacuum scavengering machines. LACRE Ltd. Dec. 5, 1962 [Feb. 22, 1962], No. 6995/62. Heading E1G. The suction nozzle unit 3 of a road scavengering machine has a rear wall 8 carrying a rubber wearing portion 9 and a front wall 10 terminating at a distance above the ground at which the minimum effective suction effect can be obtained. Below the wall 10 is an arcuate plate 12 pivotally mounted on a frame 11 and riding on the debris to be swept, thus restricting the effective nozzle inlet to maintaining strong suction power. The plate 12 may be counterweighted (not shown) or moved by mechanical, hydraulic or pneumatic means controlled from the driver's cab. Alternatively a shutter may be mounted for sliding up and down movement in the nozzle unit. A rotating brush unit (not shown) may precede the nozzle unit, an hydraulic or other linkage system raising both units during transit of the machine.
Patent GB-420893-A (GB)
Title: Improvements in or relating to cabinets and like furniture
IPC: A47B61/00
Filed: 1933-03-08
Abstract: 420,893. Cabinets. DEUTSCHE WERKSTATTEN AKT.-GES., Hellerau, Dresden, Germany. March 8, 1933, Nos. 7056 and 7057. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 9, 1933]. [Class 52 (i)] Cupboards, buffets, sideboards and like articles are made by using plywood parts which are formed by glueing together flat veneers ; as they dry, they form them selves or are moulded into curved panels, suitable for making curved parts of furniture. Fig. 4 shows a cupboard comprising two annular frames, each consisting of two bent wooden mouldings a, b. Panels c, d and walls e, f are glued to the parts a, b to form a top cover, base, and sides and back. The front edges of the walls e receive strengthening mouldings g. The doors may be hinged ; as shown the closure consists of two outer sliding doors h, Fig. 2, and an inner sliding door i, each consisting of two edge standards, upper and lower mouldings m, l, and a plywood panel n. The mouldings m, l are fitted with rollers for guiding rails o on the parts a. In a sideboard, the drawers are approximately circular in form, and turn out on vertical pivots. The parts a, b may be secured to the panels by suitable bolts and nuts.
Patent GB-525947-A (GB)
Title: Improvements in electric selective signalling or remote control apparatus
IPC: B61L7/08
Filed: 1939-03-03
Abstract: 525,947. Electric selective signalling systems. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and SHIPP, D. G. March 3, 1939, No. 7068. [Class 40 (i)] In a remotely controlled indicator for routes &c , in which the indicators are operated by a local source in response to the selective energization of relays or operation of a stepping switch over lines from the control point, tell-tale indicators in the lines at the control point which do not respond to normal control current are operated in response to increase of the line current by actual operation of the indicators. As shown, relays RI-R3 are selectively operated by switches 1-3 to complete local circuits for indicator lamps L1-L3 in series with a relay RP which closes a circuit over adjustable resistance I in parallel with the relays to increase the line current and operate the tell-tale indicators S1-S3 the current through which is adjustable. The lines are isolated from each other by rectifiers 41-43. In a modification, a stepping switch at the controlled point, automatically hunting for a marked line, is used to select the indicator.