baber/WOPTO huggingface dataset:
Patent GB-700754-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: BELL JOHN ERNEST
IPC: F02K1/12
Filed: 1950-09-05
Abstract: 700,754. Jet propulsion plant. BRISTOL AEROPLANE CO., Ltd. Sept. 4, 1951 [Sept. 5, 1950], No. 21903/50. Class 110 (3) A resilient tail pipe for a gas turbine engine is radially contracted by circumferentially distributed adjusting means, such as hydraulic or pneumatic jacks 16 which impart a convergent form of scalloped or fluted cross-section to the tail pipe and are jointly operatable by means, such as a valvecontrolled manifold, to vary the depth of the scallops and thereby adjust the cross-sectional area of the pipe. The tail pipe comprises a non-resilient cylindrical member 10 having a resilient conical member 11 connected thereto by a resilient ring 12. Each jack 16 is pivoted to a shroud ring 14, and connected by a pivoted rod 22 to a bracket 23 on the shroud ring which surrounds the tail pipe to define a cooling space 15 therewith. In order to maintain a circular outlet when the member 11 is contracted and thereby fluted, chordwise extending, bowed members 25 are provided which jointly form a contractible shutter ring. Each pair of adjacent jacks are interconnected by two members 25 which cross one another; one end of one member 25 being hinged to the cylinder of one jack and the other end of said member being hinged to the plunger of the adjacent jack. The radial depth of the space 15 is maintained substantially constant by circumferentially arranged arcuate plates 30, each of which is pivoted to a pair of members 25 for movement therewith. When the plunger of the jack is extended, bleed holes 35 are exposed in the cylinder for cooling the working parts of the jack. The jack may be operated by compressed air from the compressor of the plant. Reference has been directed by the Comptroller to Specification 680,453.
Patent GB-719171-A (GB)
Title: Master pin assembly for an endless track or the like
IPC: B62D55/21
Filed: 1952-09-01
Abstract: 719,171. Endless tracks. CATERPILLAR TRACTOR CO. Sept. 1, 1952 [June 18, 1952], No. 21917/52. Class 79(1) [Also in Group XXV] In a master pin assembly for an endless track or the like, which track or the like comprises apertured links through which, the pin extends, an elastic sleeve 18 is disposed in the aperture of one link and is expansible therein and has a tapered bore and a pin 14 is provided having a tapered part 19 insertable in the bore, the tapered part expanding the sleeve against the wall of the aperture, an expansible flange 17 on the sleeve being also engageable with the said one link to retain it in the aperture as the pin is inserted. As shown the invention is applied to an endless track comprising a plurality of ground engaging plates 10 each of which is connected to a pair of spaced parallel links 11. The two links 11 of a pair are normally connected by a bush 15 which extends into a recess in each of the links of the next pair, in this joint the bush does not extend into the adjacent links, and one of the recesses is filled by a spacer 16 and the other by the flange 17 of the sleeve 18. The tapered end of the pin 14 engages the sleeve and expands it to engage the wall of the second track pin aperture in the link. The end of the pin protrudes a short distance beyond the sleeve to facilitate removal of the pin by means of a hammer blow.
Patent GB-947962-A (GB)
Title: Coagulated rubber latex and a method of preparing
IPC: C08J9/28
Filed: 1962-06-06
Abstract: Natural and synthetic rubber latices containing emulsifiers are coagulated to form coarsely divided porous coagulates by mixing the latex with an aqueous electrolyte solution, preferably by means of a mixing nozzle, the weight ratio between the electrolyte and the solid rubber in said latex being below 1, passing the mixture of latex and electrolyte along a flow pipe, the flow in said flow pipe being laminar and the dwell time being between 2 and 20 seconds and recovering from said flow pipe a latex-free coagulate in the form of a soft porous strand. Also a mixture of butadiene/acrylonitrile and styrene/acrylonitrile latices, and mixtures of rubber latices with latices of vinyl chloride polymers may be used.
Patent GB-649205-A (GB)
Title: Improvements in or relating to labelling machines
IPC: B65C3/14
Filed: 1948-08-19
Abstract: 649,205. Labelling-machines. WEISS, J. Aug, 19, 1948, No. 21939. [Class 73] Apparatus for labelling bottles &c. in an upright position comprises an endless conveyer 6 having a rectilinear portion and a part circular portion. The bottles 8 are fed on to the rectilinear portion and labelled on the circular portion by means of a reciprocating yoke 36 which picks up a label 35 after being gummed by a roller 39 and presents the label in the path of the bottle, after which the label is smoothed into position. As the bottles 8 reach the part circular portion of the conveyer they are gripped by pincers 221, 271 which are cam controlled. As the yoke. moves across the conveyer to take up its labelling position the leading jaw 27<SP>1</SP> of the pincers moves forward to clear it, thereafter moving back to grip the bottle again. As the bottle moves through the yoke the pincers are accelerated. to push the bottle rapidly through it, and then, when the labelling is completed, slow down the bottle so that it takes up its original spaced position on the conveyer. A star-wheel 33, pawl 34 and tappet arm 34<SP>1</SP> control the feeding of the bottles to the part-circular portion of the conveyer. A feeler 48 controls the movement of the label. carrier towards and away from the yoke, so that no label is fed when there are no bottles on the conveyer. All the moving parts of the machine are driven from one motor 9 by means of gears and cams. Specification 649,206 is referred to.
Patent GB-508261-A (GB)
Title: Improvements in or relating to the construction or formation of the elements of built-up or plate-type heat exchangers
IPC: F28F3/08
Filed: 1938-02-14
Abstract: 508,261. Plate heat - exchangers. ALUMINIUM PLANT & VESSEL CO., Ltd. Feb. 14, 1938, No. 22009. Convention date, April 15, 1937. Divided application. [Class 64 (iii)] In a heat-exchanger of the kind comprising a number of, e.g., transversely corrugated plates 16, 25, Figs. 1, 2, respectively, alternately disposed and clamped together to form flow spaces for the fluids between which heat is to be exchanged, the plates 26 have marginal grooves pressed &c. in opposite faces thereof for packing strips 7, 8 which extend around three sides of the fluid transfer ports 18, and which are of reduced depth at the points 30, 31 at which they cross each other. The ports are provided with peripheral grooves for packing strips 40, 42 which are of reduced depth along the edges adjacent the spaces between the plates, as shown in Fig. 3, to permit flow of the fluids. The grooves around the ports may be provided along the reduced edges with spacing projections 50. The packing strips 7, 8 may be supported at their crossing points by metal inserts 54, Fig. 8, and the grooves for said strips may be of the form shown in Figs. 10, 11. Specification 428,634 is referred to.
Patent GB-878130-A (GB)
Title: Vinylic aluminium compounds
Inventor: RAMSDEN HUGH EDWIN
IPC: C07F5/06
Filed: 1958-07-09
Abstract: Vinylic aluminium compounds containing at least one vinylic radical of formula: <FORM:0878130/IV (a)/1> <FORM:0878130/IV (a)/2> where R, R1 and R11 represent either hydrogen or a substituted or unsubstituted hydrocarbon or active hydrogen free heterocyclic radical and a is a whole number greater than 1, and of general formula: VixRyAlXz when Vi and R are as defined above, x is 1, 2 or 3, y is 0, 1 or 2, x is a halogen atom or an alkoxy or aryloxy radical, z is 0, 1 or 2, the sum of x, y and z being 3, may be polymerized with styrene, vinyl acetate, vinyl chloride, butadiene, acrylates, esters, acrylics and vinyltins, vinylborons, vinylsilanes, vinylarsenic and vinylantimony compounds.  Reference has been directed by the Comptroller to Specification 824,944.ALSO:Vinylic aluminium compounds may be prepared by reacting an organomagnesium chloride complex of formula RMgCl.nQ wherein R is a substituted or unsubstituted hydrocarbon radical or active-hydrogen free heterocyclic radical containing no group reactive under the conditions of the reaction, Q is a cyclic ether as defined and n is of the order of 1 to 3 with an aluminium halide, alkoxide or aryloxide, the organo-substituent whereof contains no group reactive with magnesium or said complex, R and/or an organosubstituent in the aluminium compound being a vinylic radical as hereinbefore defined. When the aluminium compound which is to be reacted with the Grignard reagent contains a vinylic substituent, it may be prepared by reacting ViMgCl.nQ with an aluminium halide, alkoxide or aryloxide or with an organo substituted halide, alkoxide or aryloxide.  The reaction is preferably conducted in the solvent Q or the Q in the complex may be replaced by an ethylene polyether.  Reaction temperature may be between room temperature and the reflux temperature of the reaction mixture.  An inert atmosphere (e.g. of nitrogen) is preferably maintained.  Specifications 792,537 and 826,621 also are referred to.  Reference has been directed by the Comptroller to Specification 824,944.
Patent GB-652873-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D65/54
Filed: 1947-08-08
Abstract: 652,873. Brake wear adjustment devices. BENDIX AVIATION CORPORATION. Aug. 8, 1947, No. 22130. Convention date, Feb. 15, 1946. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 8, 1947.] [Class 103 (i)] A device for the automatic adjustment of the clearance in a disc brake comprises a positioning member 146 associated with clamping means 162 extending through the pressure - applying plate 138, which is movable in one direction against a yielding resistance, the spring 156, but being prevented from moving more than a predetermined distance in said direction, and being movable in the other direction only upon overcoming the frictional force exerted by the clamping means. As shown in Fig. 3, the clamping means 162 comprises a slotted spring plate 170, but a circular spring washer may be used instead. Application of fluid pressure to the chamber 118 moves the plate 138 to compress the friction discs, the plate 138 carrying with it the positioning member 146 after it comes into contact with the sleeve 160. Release of the applying pressure allows the spring 156 to force back the plate 138 against stop shoulder 158 to reset the brake clearance. In the arrangement shown in Fig. 6, the clamping means comprises a resilient packing ring 184 under compression by a spring 182 within an adjusting screw 188. The action is otherwise similar to that described.
Patent GB-850290-A (GB)
Title: A pumping assembly
IPC: B67D7/68
Filed: 1957-07-12
Abstract: 850,290. Mounting pump motors. SYMING- TON WAYNE CORPORATION. July 12, 1957 [July 25, 1956], No. 22132/57. Class 35. [Also in Group XXVI] A pump and motor combination 36 is suspended in a tank 10 by the outlet conduit 40 for the pump which is supported by a cover 44 for a discharge head 16 mounted on the tank 10 by a casing 14. The leads to the motor are enclosed in a sleeve 62 which passes through a gland 72 in the cover 44, the leads being sealed in the sleeve 62 by a plastic seal 76. A rotatable junction-box 78 is provided. The motor and pump combination can be withdrawn complete from the tank through the casing 14.
Patent GB-223209-A (GB)
IPC: C10J3/00
Filed: 1924-09-19
Abstract: 223,209. Naamlooze Vennootschap Machinerieen-en Apparaten Fabrieken. Oct. 12, 1923, [Convention date]. Void [Published under Sect, 91 of the Act]. Charge, purifying; plant.-Producer gas for use in an internal-combustion engine is kept hot so that the steam and bituminous contents of the gas do not condense; as a result the dust in the gas is easily extracted without choking the separating apparatus.
Patent GB-1237165-A (GB)
Title: Process for production of cells of microorganism from lower hydrocarbon
Filed: 1969-05-01
Abstract: 1,237,165. Cultivating micro-organisms on hydrocarbons. IDEMITSU KOSAN CO. Ltd. May 1, 1969 [May 2, 1968], No.22319/69. Heading C6F. The micro-organism Corynebacterium hydrocarboclastus JTB-271 (ATCC 21409) is aerobically cultivated in a culture medium containing at least one acyclic lower hydrocarbon having 2 to 5 carbon atoms as the main carbon source, exemplified by a mixture of ethane (2% by volume), propylene (3%), butylene (45%), butane (5%), and pentane (45%).
Patent GB-387698-A (GB)
Title: Improvements in or relating to aerials or antennae
IPC: H01Q9/40
Filed: 1931-08-06
Abstract: 387,698. Aerials. LASSMAN, H., 429, Backing Road, London, HUTSON, F. A., 23, Nelson Road, South Chingford, Essex, and NEW LONDON ELECTRON WORKS, Ltd., Boleyn Road, East Ham, London. Aug. 6, 1931, No. 22331. [Class 40 (v).] An aerial consists of a hollow sphere or skeleton of sheet metal supported on a central spindle. As shown in Fig. 3, the sphere 10 is made in two halves, and the lead-in wire 15 is wound by means of a knob 23 around a central tube 21 when not in use. Alternatively a skeleton aerial may be formed from a continuous perforated metal strip 110, Fig. 4, which is threaded at the top and bottom through a reduced portion of the central spindle 111 and gripped in position by washers 113. The strips are collapsed into the same plane, when out of use as shown in Fig. 5. The two ends of the strip are connected to terminals 117 to form a closed loop, or one end only may be so connected, the device then forming an open aerial. The skeleton framework may be enclosed in an ornamental covering 118 of silk. Reference has been directed by the Comptroller to Specifications 223,706, 258,764, and 315,532, [all in Class 40 (v), Wireless signalling &c.].
Patent GB-211439-A (GB)
IPC: F28B5/00
Filed: 1923-09-06
Abstract: 211,439. Krupp Akt.-Ges., F. Feb. 13, 1923, [Convention date]. Cooling condensers, air blast for. -An auxiliary engine d actuates a blower on the tender and is connected by a flexible pipe or coupling h with a condenser k on the locomotive. The engine d is a back-pressure turbine, and a resistance is inserted between the flexible pipe and the condenser.
Patent GB-873962-A (GB)
Title: Improvements in and relating to method and apparatus for cleaning a filter
IPC: B01D24/12
Filed: 1958-07-15
Abstract: 873,962. Filters. GRUNDWASSERBAUTEN A.G., FUER. July 15, 1958 [Sept. 6, 1957], No. 22582/58. Class 46. Water from a swimming pool 7 filled to the level 15 passes along a conduit 11 which includes a valve 16 acting as a flow resistance and flows over the edge 14 of a filter container 1, whence it is withdrawn by a pump 5 and returned, filtered, along a conduit 6 to another part of the pool (not shown). The rate of delivery of the pump and the flow resistance of conduit 11 and valve 16 are all adjusted so that the level in container 10 above container 1 is substantially below the upper end, 13, of an overflow pipe 12, the end 13 being slightly below the level 15. Upon reversal of direction of the pump (e.g. by automatic time-operated reversal of motor 8) the direction of liquid flow through the bed 4 is reversed, the level in container 10 rising until 13 is reached, whereupon the water with impurities flows down pipe 12 into sewer 18. Backflow along conduit 11 to pool 7 is prevented either by the slight presure head 15-13, or by the. resistance of conduit 11 and valve 16 if the level in container 10 should be above 15. In Fig. 3 (not shown), the filter bed is in a closed tank wholly above the water level in the swimming pool and the water from the pool reaches the tank via a non-return valve in a pipe leading by a T-junotion to the top of the tank, the other arm of the T also having a non-return valve and leading to the sewer.
Patent GB-1031054-A (GB)
Title: Method of and apparatus for the speed regulation of a power transmission system
IPC: B66B1/16
Filed: 1963-06-06
Abstract: 1,031,054. Automatic speed control. LICENTIA PATENT-VERWALTUNGS G.m.b.H. June 6,1963 [June 7,1962],No.22594/63. Heading G3R. [Also in Division H2]  A load is driven by an electric motor through a resilient coupling, means being provided for suppressing oscillations of the load during the acceleration or retardation periods. For this purpose, the acceleration period is divided into three sections, and, over the first and third sections, the speed of the motor is made to vary linearly with respect to time at a rate dependent upon the ratio between the period of natural oscillation of the driven mass and the duration of the starting period of the motor. Over the intermediate second section, the speed is made to vary linearly with time from the value at the end of the first section to that at the start of the third section. As shown, motor 71 drives hoist cages 73, 74, and is supplied from transformer 77 through rectifier 76 which is controlled by an error voltage derived from comparator 79 associated with reference voltage source 80 and tachometer generator 75. The period of natural oscillation depends on the length of free cable and upon the weights of cable, the cage, and useful load. The length of cable is measured by wheel 81 associated with integrator 82, and the spring constant being measured by computer 83. A measure of the useful load is provided by current transformer 84 associated with computer 85 taking into account the known weights of the cage and cable. The natural oscillation period is calculated by summation device 86, the components representing the duration of the starting period and the natural oscillation period being supplied to computer 87 which adjusts the reference voltage source 80. In one arrangement, the reference voltage is derived from a potentiometer whose movable tap is displaced at a constant speed, and which has two fixed tappings through which variable supplementary voltages are fed into sections of the potentiometer. These supplementary voltages are derived from two auxiliary potentiometers whose movable taps are ganged and adjusted in accordance with the signal from computer 87, Fig. 4 (not shown). In another arrangement, the reference voltage is derived from an integrator associated with a summation device and four step-function transmitters, Fig. 5 (not shown). In a further embodiment, the reference voltage is obtained from a potentiometer which is adjusted by a cam, Fig. 6 (not shown). The position of the cam is related to that of the lift cage.
Patent GB-806323-A (GB)
Title: Improvements in cycle saddles
Inventor: WILSON TECWYN PRYCE
IPC: B62J1/00
Filed: 1956-07-23
Abstract: 806,323. Cycle saddles. BROOKS INDUSTRIES, Ltd., J. B., [formerly BROOKS & CO. Ltd., J. B.I. June 11, 1957 [July 23, 1956], No. 22670/56. Class 136(3) A cycle saddle of which the top is supported only at the ends has its depending sides reinforced by a bridge piece that is disposed transversely underneath the saddle top. The bridge piece 5 is of channel section metal strip bent into the shape of an inverted U and may have reinforcing webs 6. It is shown riveted to the edges of the central underside of the saddle 1a. It is particularly applicable to racing saddles of the kind described in Specificatioh 452,336, whose depending sides are not formed into flaps. More than one bridge-piece may be used.
Patent GB-334337-A (GB)
Title: Improvements in or relating to tins, canisters and like containers
IPC: B65D51/20
Filed: 1929-07-24
Abstract: 334,337. Robinson, F., and Robinson & Co., Ltd., F. July 24, 1929. Lever lids.-In a tin, canister, &c. of the type wherein the upper edge 2 of the tin body is inwardly rolled or beaded to permit a lid 4 of slightly larger diameter to be sprung into position within the mouth, being retained in position by the bead 2, the bead is cut or notched at spaced points 3 to impart greater resiliency. The lid 4 may be formed with perforations 5, or weakenings 6. to facilitate perforating by a separate tool, and an outer lid 7 may also be fitted. Reference has been directed by the Comptroller to Specification 20614/09.
Patent GB-1466766-A (GB)
Title: Control systems for cell smear slide centrifuges
IPC: B04B13/00
Filed: 1974-05-22
Abstract: 1466766 Controlling centrifugal separations CORNING GLASS WORKS 22 May 1974 [24 May 1973] 22777/74 Heading G1A [Also in Division H2] A system for controlling centrifugal separation of cells in a transparent substrate uses a source passing light through the substrate and a direct light and a scattered light detector and stops the centrifuge when the ratio of the detector outputs reaches a predetermined value.  As shown, light from LED source 11 passes pinhole 24 and is focussed by lens 12 and passes through windows 21 in the centrifuge rotor. The light then passes through the sample on slide 21 and is received on direct light detector 16 or, after scattering by the cells, on the larger, scattered light detector 18. Source and detectors are rigidly mounted on cover 22 which is pivoted at 23. The A.C. outputs from the detectors are amplified, rectified, filtered and fed to a comparator. Preferably the scattered light detector output is, after filtering fed to a multiplier where it is multiplied by an exponentially decoying signal before comparison with the other filtered signal; When the comparator output changes polarity, the centrifuge is stopped.  In an alternative embodiment, light from a laser source is directed up a hollow rotor axis and a beam-splitter is used to reflect light to the direct light detector while a direct light stop prevents direct light from reaching the scattered light detector.
Patent GB-186236-A (GB)
Title: Improvements relating to storage cabinets and the like
IPC: A47B81/06
Filed: 1921-08-27
Abstract: 186,236. Brewer, A. J. Aug. 27, 1921. Drawers and drawer fittings.-A gramophonerecord or like cabinet drawer is provided with runner bars 1 hinged at 9 to extension bars 8 which are engaged by pivoted pawls 11 when the diawer is completely withdrawn to permit the drawer to hang vertically in front of the cabinet. A top cover 6 with sides 6b slotted at 6<c> is pivoted to the drawer at 6a. The extensions 8 are fitted with a false back 12 which serves as a back to the drawer when closed.
Patent GB-204694-A (GB)
Title: Improvements relating to electric cells
IPC: H01M6/06
Filed: 1923-09-11
Abstract: 204,694. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Little, G. M., and Ford, J. G.). Sept. 27, 1922, [Convention date]. Electrodes; electrolytes; connections; connections to car bons. - A dry cell particularly for use in a high tension battery in wireless apparatus consists of a glass or insulating container 1 containing an amalgamated zinc electrode 2 at the bottom which is covered with a paste electrolyte 8 consisting of starch, ammonium chloride, zinc chloride and water. Above the electrolyte is the depolarizer 9 consisting of manganese dioxide, graphite, ammonium chloride, zinc chloride and water in which a carbon electrode 10 impregnated with paraffin is embedded. The upper end of the carbon is sprayed with copper to form a cap 11 to which a wire 12 is secured. Connection is made to the zinc 2 by a wire 4 which passes through holes 3 formed in the zinc and is surrounded by a glass tube 6 the upper end of which is sealed by the wax 15 closing the cell, the lower end entering the electrolyte 8. The lower surface of the zinc may be coated with copper and a layer of paper 13 rests on the depolarizer 9.