baber/WOPTO huggingface dataset:
Patent GB-455851-A (GB)
Title: Improvements in or relating to composite light-diffusing articles
IPC: F21V3/00
Filed: 1935-02-26
Abstract: 455,851. Translucent ornamental sheets ; lamp chimneys ; panels. THERMOLUX GLASS CO., Ltd., 1, Albemarle Street, Piccadilly, London, BOOTH, R., Triplex Works, Eccleshall Road, King's Norton, Birmingham, and SOC. ANON. VETRERIA ITALIANA BALZARETTI MODIGLIANI, 25, Via della Cateratte, Porta Industrialle, Livorno, Italy. Feb. 26, 1935, Nos. 6182 and 10712. Addition to 402,633. [Class 20 (iii)] [See also Groups XI and XV] Composite translucent sheets or parcels formed of transparent or translucent sheets enclosing alight-diffusing substance as disclosed in the parent Specification are characterized in that the outer sheets or the interposed substance or both are of non-vitreous material. The sheets are spaced <1>/40 to <1>/20 inch apart and joined at the edges by cement or pitch. They may be curved as for lampshades or curved window panes and may be roughened or ribbed and consist of synthetic resin, or cellulose derivative. The light-diffusing substance may be powdered or filamentary glass, quartz, resin, or cellulose derivative or fine aluminium wire. The sheets or the diffusing substance may be coloured and may be modified for use as a heat screen. The product may be used as a light diffusing sunshine. roof for a motor car.
Patent GB-269295-A (GB)
Title: Improvements relating to railway tipping wagons
IPC: B61D9/00
Filed: 1926-09-15
Abstract: 269,295. Bond, O., and Cambrian Wagon Co., Ltd. Sept. 15, 1926. Tip-wagons.-In a railway tip-wagon of the kind in which the under surface of the body is furnished with quadrant-shaped rockers B fitted with pins D which move in arcuate grooves E in vertical plates F on the underframe, each plate F is provided with two or more grooves so that, by displacing the body laterally on the rails G and engaging the pins D with the selected set of grooves, the angle of tip may be varied in accordance with the nature of the material to be discharged, while the width of the body is not greater than the width of the wagon underframe, thus enabling the body to be fitted to wagons of standard gauge without projecting laterally therefrom when the pins D are engaged with the innermost set of grooves. In order to retain the body horizontal, it is provided with catches C adjustable to alternative positions on the body corresponding to the different sets of grooves E.
Patent GB-939072-A (GB)
Title: Improvements in or relating to temperature-control systems
Inventor: JONES FREDERICK MCKINLEY
IPC: H05B1/02
Filed: 1960-02-22
Abstract: 939,072. Automatic temperature control. THERMO KING CORPORATION. Feb. 22, 1960, No. 6191/60. Class 38 (4). [Also in Group XIII] A control system for maintaining a substantially constant temperature in an enclosed space comprises means to heat or cool said space responsive to the conditions of two electromagnetic control devices which are connected in an electric circuit containing a single thermostat responsive to the temperature of the space. As shown, an enclosure 10 is provided with the evaporator coil 30 of a refrigeration system having a compressor 14 driven by a prime mover 12 associated with an electromagnetic control device 38, 40. A conduit 32 extends from a junction 34 on the high pressure side of the compressor 14 to the evaporator 30 and contains a control valve 36 associated with an electromagnetic control device 42, the controls 40, 42 being regulated by a single thermostat, the arrangement (Fig. 2, not shown) being such that with control 40 energized the coil acts to cool the enclosure and with controls 40 and 42 energized the coil acts to heat the enclosure, the valve 36 being opened in the latter instance to allow compressed and substantially superheated gases to flow from the high pressure side of the compressor 14 into the coil 30. Instead of modifying the refrigerant circuit to heat the enclosure, an electric heating element may be provided in the space to be heated, or the refrigeration system may be of the type wherein the refrigerant circuit can be reversed. Two separate units each having a pair of electromagnetic control devices may be provided to heat or cool the controlled space, both pairs of controls being responsive to the single thermostat.
Patent GB-1046195-A (GB)
Title: Self-extinguishing finely divided expandable styrene copolymers
Inventor: STAHNECKER ERHARD
IPC: C08J9/00
Filed: 1964-02-14
Abstract: A self-extinguishing expandable plastics composition comprises (A) a thermoplastic styrene copolymer which contains 95 to 99.5% by weight of styrene and 0.5 to 5.0% by weight of acrylonitrile or at least 80% by weight of styrene, 0.5 to 5.0% by weight of acrylonitrile and not more than 15% by weight of one or more other monomeric polymerizable a ,b -unsaturated compounds, (B) an organic bromine compound having a bromine content of more than 50% by weight, the amount of the bromine compound being such that the bromine content of the mixture (with reference to the styrene copolymer) is from 0.5 to 6.0% by weight and (c) 2 to 20% by weight (with reference to the styrene copolymer) of an expanding agent which is liquid or gaseous at room temperature, which does not dissolve the copolymer and which has a boiling point of less than 100 DEG  C. Compositions which contain a copolymer of 99-97% by weight of styrene and 1-3% by weight of acrylonitrile have particularly advantageous properties in respect of little shrinkage. Polymerizable monomeric a ,b -unsaturated compounds which may be used in addition to styrene and acrylonitrile include esters of acrylic and methacrylic acids with alcohols having one to eight carbon atoms, nuclear halogenated styrenes, nuclear alkylated styrenes and divinylbenzene. Organic bromine compounds used are brominated polymers of butadiene or isoprene having a degree of polymerization of 2 to 20, such as octabromohexadecane, tetrabromocyclooctane, hexabromocyclododecane, tetrabromocyclododecane; esters and acetals of 2,3-dibromopropanol such as tris-(2,3-dibromopropyl) phosphate are also suitable.  1,2,5,6,9,10-Hexabromocyclododecane 1,2,5,6 - tetrabromocyclooctane and 1-chloro-2,3,4,5,6-pentabromocyclohexane are also used. Substances, such as ferrocene, which improve the flame-proofing effect, may also be added.  The compositions are advantageously prepared by polymerizing the mixture of monomers in aqueous suspension in the presence of the expanding agent and the organic halogen compound.  The product of this reaction can be expanded by heating with steam or hot air.
Patent GB-316540-A (GB)
IPC: F17B1/00
Filed: 1929-02-26
Abstract: 316,540. Maschinen - Fabrik Augs- 'burg-Niirnberg Akt.-Ges. July 30, 1928, [Convention date]. Metal plates and sheets.-The lifts of helically-guided telescopic gas holders are built up from rhombo dal sheet metal plates which are formed without waste from rectangular plates by dividing a rectangular plate 1 - - 4, Fig. 2, by an inclined cut 5, 6 and then welding the edge 1, 2 of one section to the edge 3, 4 of the other section. Rhomboidal metal plates of unequal lengths are formed from rectangular plates of uniform size by cutting two plates into unequally sized sections x<1>, y<1>, x<11>. y<11>, and then welding together the two larger sections x<11> y<1> and the two smaller sections x<1>, y<11>, as shown in Figs. 4 and 5.
Patent GB-647556-A (GB)
Title: Improvements in or relating to nailing and stapling machines
IPC: B25C5/06
Filed: 1948-02-28
Abstract: 647,556. Nailing; stapling. POWERNAILS CO. Feb 28, 1948, No. 6280. Convention date, Dec. 1, 1943. [Class 89(iii)] A nailing or stapling machine comprises a driving blade with a driving stem of reduced cross-section which is guided by surfaces covering its front and rear faces for a length at least equal to the stroke of the plunger. The blade 24, Fig. 6, is attached to the front face of the plunger 14 and its lower end comprises a narrower driving stem 28 which is guided between the plate 30, Fig. 2, and the surface 35 of the plunger socket and by a groove in a front plate 40. The machine includes a pair of castings 2, 3 formed with grooves 44, 45, Fig. 11, to provide a T-shaped guideway for a stick of headed nails 68 which are fed forward by a spring-pressed pusher member 62. In the form shown in Fig. 10, a pair of spaced channel members 51 mounted in grooves 48 in the castings and secured to a rear block 53 each carries at its forward end a pulley 58 around which passes a spring 60 attached at one end to the block 53 and at the other end to a pusher member 62. The magazine is loaded from its rear with a stick of adhesively united nails the spring feed mechanism being then inserted and secured by a shaped pin 78. In a modification, a single pusher spring is housed in a circular channel above the nail grooves in the castings. The castings may be of steel or of thermoplastic reinforced with short cords or strands of cotton, rayon &c.
Patent GB-509133-A (GB)
Title: Improvements in push type centrifugal separators
IPC: B04B3/02
Filed: 1939-02-25
Abstract: 509,133. Centrifugal separators. MEER, G. T. Feb. 25, 1939, No. 6298. Convention date, Feb. 25, 1938. [Class 23] A centrifugal separator of the push-bottom type has a perforated cage 1 mounted on the overhanging end of a horizontal hollow shaft 2 running in bearings 3, 4, the shaft being expanded between the bearings to form a power cylinder 5 which acts as a counterweight to the cage and also as a brake drum. The piston 7 in the power cylinder 5 is mounted on the rod 6 which passes through the shaft 2 and carries the push-bottom plate 8 which is connected by ribs 9 to a front cover portion 10. A catch plate 20 is also provided. The material to be treated enters by the pipe 19 and is thrown by the conical part 8<1> of the plate 8 to the wall of the cage. The liquid passes through the wall to the casing 16 and the remainder is pushed by the plate 8 into the casing 17. Packing 11 forms a tight joint between the movable cover 10 and the cage wall, and labyrinth packing 18 separates the casings 16, 17. The piston 7 is operated by pressure fluid supplied through the bearing 4. In a modification, the plate 8 is perforated so that liquid can pass through it, and the cover portion 10 is conical so that it can act as the inlet hopper.
Patent GB-695902-A (GB)
Title: Improvements in or relating to radar systems
Inventor: RAE DOUGLAS ELLIOT
IPC: G01S7/12
Filed: 1951-03-16
Abstract: 695,902. Radiolocation ; valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 15, 1951 [March 16, 1951], No. 6437/51. Classes 40 (vi) and 40 (vii). In a pulse radar system having a P.P.I. display, apparatus for optionally providing an expanded centre to the display comprises means, operable at will, for altering the mean D.C. level of the deflecting waveform applied to the cathode-ray tube by the addition thereto of a rectangular pulse waveform. The deflecting waveform, Fig. 4a, is of the " balanced " type, i.e. its D.C. level coincides with the beginning of the linear sweep of the waveform. This waveform is applied via transformer T1, which comprises the anode load for a Miller time-base generating circuit (not shown), to the control grid of valve V2, the output from which is applied, via further output valves, to the rotor of a rotary transformer coupled mechanically to the aerial rotation and having two stators connected to respective deflecting coils of the cathode-ray tube. For the production of the expanded centre, a trigger pulse, Fig. 4b, timed to occur 30 microseconds before the commencement of the linear sweep of the time-base waveform, is applied to conductor L to trigger the cathode-coupled flip-flop valve V4 which consequently generates a rectangular pulse waveform. Fig. 4c. This waveform is coupled through diode VI, when switch SW is in the " On " position, to the input circuit of valve V2, the input waveform to which is then as shown in Fig. 4d. A negative bias is applied to the anode of diode V1 through resistor R2 so that the diode only conducts during the positive portions of the rectangular waveform, Fig. 4c. The waveform passed by the diode consequently modifies the D.C. level of the time-base waveform, Fig. 4a, so that the linear portion thereof no longer commences at zero potential and the origin of each deflection of the P.P.I. display is displaced from the centre of the screen to give an expanded-centre display.
Patent GB-1020027-A (GB)
Title: Polymerization of tetrahydrofuran
IPC: C08G65/20
Filed: 1963-02-18
Abstract: Tetrahydrofuran is polymerized in the presence of a catalytic system comprising an organoaluminium compound, and one or more cocatalysts, with or without water, in an inert atmosphere.  The aluminium compounds are of formula R3- nAlXn, where R is an alkyl, aryl, cycloalkyl, or aralkyl group, X is halogen or an alkoxy, acyloxy or tertiary amino group, and n is 0, 1 or 2.  The co-catalysts are of three types: (1) alkylene oxides and lactones (including diketone), (2) organic acid halides and anhydrides, and (3) a -halogen-containing ethers. The organoaluminium compound amounts to 0.01-50 mole per cent of the tetrahydrofuran, with the cocatalyst at least 1 mole per cent of the organoaluminium compound, and water, if used, 1 to 200 mole per cent of the organoaluminium compound. Temperatures of -78 DEG  to 200 DEG  C. are suitable.  Examples describe the use of triethylaluminium with epichlorohydrin, propylene oxide, acetyl chloride, chloromethyl ether, b -propiolactone and diketene, with and without water, and the effect of various amounts of epichlorhydrin and of water.ALSO:A catalytic system for the polymerization of tetrahydrofuran comprises an organoaluminium compound and one or more cocatalysts, with or without water.  The aluminium compounds are of formula R3-nAlXn, where R is an alkyl, aryl, cycloalkyl or aralkyl group, X is halogen, or an alkoxy, acyloxy or tertiary amino group, and n is 0, 1 or 2.  The co-catalysts are of three types: (1) alkylene oxides and lactones (including diketene), (2) organic acid halides and anhydrides, and (3) a -halogen-containing ethers.  The cocatalyst amounts to at least 1 mole per cent of the organoaluminium, and water, if present, to 1-200 mole per cent. Examples describe the use of triethylaluminium with epichlorhydrin, propylene oxide, acetyl chloride, chloromethyl ether, b  propiolactone and diketene, with and without water.
Patent GB-411248-A (GB)
Title: Improvements in or relating to processes of and apparatus for purifying gases
IPC: F25J3/08
Filed: 1933-03-03
Abstract: 411,248. Separating gases by liquefaction. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.- (Assignees of Bowditch, L. J. ; 70, North 155th Street, Flushing, Long Island, New York.) March 3, 1933, No. 6508. Convention date, April 23, 1932. [Class 8 (ii).] A liquefied gas containing impurities having a melting point higher than the boiling point of the gas, in so small concentration as not to affect the boiling point, is brought into a heat exchanger 10 where it is partly vaporized, the gas and liquid being separated in a vessel 17, the impurities remaining and being drawn off with the liquid. Fig. 3 shows a modification in which impurities both more and less volatile than the gas are removed, the liquefied gas entering by the conduit 25 is partly vaporized, the more volatile impurity passing off through a coil 29 while the liquid is delivered through a pipe 33 to the upper part of the column where it is partly vaporized by this coil, the residual less volatile impurities being drawn off with the liquid through a pipe 37 while the purified gas flows off through pipe 36.
Patent GB-349933-A (GB)
Title: Improvements in and relating to photomechanical printing surfaces
IPC: G03F7/16
Filed: 1930-02-27
Abstract: 349,933. Covering surfaces with gelatine. PINCHOT-NEUMANN HOLDING CORPORATION, 595, 5th Avenue, New York, U.S.A. Feb. 27, 1930, No. 6577. Convention date, July 27, 1929. Drawings to Specification. [Class 93.] According to the Specification as open to inspection under Sect. 91 (3) (a) a layer of gelatine of uniform thickness is first formed on a temporary support which is preliminarily coated with a stripping medium (e.g. sugar, starch, or sugar and starch) and transferred to a canvas backing or other permanent support. Procedures for coating the gelatine on the temporary support and for the transfer thereof are described. Metallic substances may be incorporated in the gelatine for the production of optical projection screens. This subjectmatter does not appear in the Specification as accepted.
Patent GB-682976-A (GB)
Title: Improvements in tools for mounting and detaching piston rings
IPC: B25B27/12
Filed: 1950-03-16
Abstract: 682,976. Tool for expanding piston rings. OSTERGAARD, A. March 16, 1950 [March 18, 1949], No. 6585/50. Class 61 (ii). [Also in Group XXVI] A hand tool for expanding split piston rings comprises two jaw members adapted to be mounted on the ends of the ring, each jaw having a radially projecting arm to which is pivoted at two spaced points a pair of substantially parallel arms, the other ends of corresponding arms of each pair being pivoted to two relatively movable parts of an operating member which parts approach each other when the tool is actuated to expand the ring. As shown in Fig. 1, the jaws comprise claw members 7 and 8 provided with adjustment screws 9 and 10 and having radially projecting arms 3 and 4 to which are pivoted rods e, f and g, h respectively. The free ends of rods f and g are pivotally connected at points B and C respectively to a nut 11 for the operating screw 12, the free ends of the rods e and h being pivotally connected at points F and G respectively to a sleeve 13 mounted on the operating screw. In a modification, Fig. 2 (not shown), the rods each comprise a pair of levers and the pivotal connections F, G and B, C are replaced by single pivot pins. The claws 7 and 8 are replaced by the clamps shown in Fig. 4. In another modification, Fig. 5, the operating device comprises a pair of handle levers 19, 20 pivoted to the common pivot 14 of the rods f, g, a pair of pivoted links 21, 22 being connected to the levers at 23, 24 and to the common pivot 26 of links e and h and the ring being expanded by pressing together the levers 19 and 20. A spring 25 urges the claws apart. Specification 617,769 is referred to.
Patent GB-725178-A (GB)
Title: Improvements in gas-heated water heaters or geysers
IPC: F24H9/06
Filed: 1953-03-11
Abstract: 725,178. Hot-water boilers. JUNKERS & CO., GES. March 11, 1953 [March 12, 1952], No. 6667/53. Class 64 (1). The support 1 for the heat-exchanger 2, waste gas flue 4 and casing 8 of a gas-heated water heater is provided with arms 3 which hold the flue 4 and also support the casing 8. The heads of screws 6, by which angle brackets or the flue 4 are secured tc the arms 3, support the casing 8 and have projec tions 7 which engage ir holes in the casing. The lower corners of the casing are provided with screw: 10 the ends of which en gage in tapering holes in angle brackets 15 on the support or back plate 1.
Patent GB-961616-A (GB)
Title: Process and apparatus for leak detection
IPC: G01M3/22
Filed: 1962-02-21
Abstract: 961, 616. Leak detection. GESELLSCHAFT FURLINDE'S EISMASCHINEN A.G. Feb. 21, 1962 [Feb. 23, 1961], No. 6668/62. Heading G1S. A tracer-gas mixture for leakage detection is prepared automatically in a mixing container 7 (ready for a subsequent test), whenever a testobject (evacuated) is connected to the discharge line 13a, by the pressure-drop in line 13a beyond the (closed) valve 14 first of all causing the pressure-gauge pointer 17 to make contact with a stop 18 and, through relays, to open valve 14 simultaneously closing a valve 6; then, as the pressure rises in line 13a, pointer 17 contacts stop 19 to reverse the valves and thus allow inert gas (nitrogen) from cylinders 1 to enter the container 7. The latter is supplied from a reservoir 8, using the manual valve 11, with a liquid having a low boiling point such as " Freon" (Trade Mark) 12 or 22, and the vapour (used as the tracer gas in conjunction with a halogen detector) mixes thoroughly with the rapidly-entering nitrogen. A pressure equilibrium is set up and a constant pressure constant-composition mixture is thus ready for the next test. When the test-object is disconnected from line 13a, the latter is closed by a spring-loaded valve. In a modified embodiment the lines 4 and 13 meet outside the mixing vesselin a T-junction, but the operational sequence is essentially unaltered. The indicator liquid in vessel 7 requires replenishment about every two months, an indicator tube 12 being provided for monitoring the level. The valve 11 may be operated automatically in response to a signal from level-monitoring means.
Patent GB-904242-A (GB)
Title: Homopiperazino derivatives and a process for their production
IPC: C07D417/06
Filed: 1960-02-25
Abstract: The invention comprises compounds of the general formula <FORM:0904242/IV (b)/1> <Fr <FORM:0904242/IV (b)/2> (wherein R1 represents hydrogen, chlorine, bromine or a trihalomethyl group, Alk represents a straight or branched alkylene chain of 1-4 carbon atoms, and R2 represents a C1-4 alkyl group or a hydroxyalkyl or acyloxyalkyl group) and their acid addition salts, and the preparation thereof by reacting an appropriate 10-unsubstituted phenthiazine or azaphenthiazine with a compound of the general formula <FORM:0904242/IV (b)/3> (wherein Hal represents a halogen atom), or reacting a compound of the general formula <FORM:0904242/IV (b)/4> <FORM:0904242/IV (b)/5> with a compound of the general formula <FORM:0904242/IV (b)/6> at elevated temperature, or reacting a compound of the general formula <FORM:0904242/IV (b)/7> <FORM:0904242/IV (b)/8> at elevated temperature with a C1-4 alkyl ester, a haloalcohol or an acylated haloalcohol, and in either case, if desired, converting the resulting bases into acid addition salts. The products have anti-emetic and sedative properties.
Patent GB-251732-A (GB)
Title: Improvements in animal traps
IPC: A01M23/26
Filed: 1925-03-13
Abstract: 251,732. Sidebotham, W., Sidebotham, G. J., Sidebotham, H. J. E., Sidebotham, A. V., and Sidebotham, H. W., (trading as Sidebotham, W. & G.). March 13, 1925. Animal traps.-The ends e of the double wire spring c of a spring jaw trap are secured to the frame by passing through notches b formed on either side of a vertical portion a<1> of the base A and then being rigidly attached to the base. In the form shown the extreme ends of the spring are bent to an eye f and secured together by welding, a rivet h being used to attach the eye f to the base.
Patent GB-782413-A (GB)
Title: Improvements in or relating to adjustable dowel pin arrangements
IPC: F16B19/02
Filed: 1954-03-09
Abstract: 782,413. Dowel-pins; dowelling: GENERAL ELECTRIC CO., Ltd., and PLATT, A. D. B. March 9, 1955 [March 9 1954], No. 6870/54. Class 89(2) [Also in Group XXXIV] A dowel-pin which provides for lateral adjustment of its axis has a pin 5 eccentrically-carried by a body 6 which is rotatable in a sleeve 7 having its exterior eccentric to its bore and rotatable in a housing 2. The latter may be the bearing-bracket of a dynamo whose axis is to be adjusted relatively to the crank-shaft axis of a diesel engine in a casing 3. The pin 5 engages a hole 21 in the casing so that rotation of the body 6 and sleeve 7 in opposite directions will move the bracket 2 relatively to the casing 3. Bolts 12 clamp a cover 11 against a collar 10 on sleeve 7 and clamp a collar 9 on body 6 between the sleeve and bracket to secure the adjustment. The bracket 2 may have a plain dowel 15, Fig. 3, at one side and an adjustable dowel 5 at the other, to give vertical adjustment of the bearing- axis 16, or may have an adjustable dowel at each side to give horizontal adjustment of axis 16 as well.