baber/WOPTO huggingface dataset:
Patent GB-846893-A (GB)
Title: Process for the manufacture of polyethylene
IPC: C08F10/00
Filed: 1956-10-08
Abstract: Coarse-grained ethylene is prepared by polymerizing ethylene using as catalyst a mixture of (1) a compound formed by reacting, in an inert hydrocarbon, (a) an alkyl aluminium compound with (b) a compound of a metal of one of sub-Group IV, V and VI and (2) an organo-aluminium compound wherein per 1 to 1,8 gram-equivalent of the alkyl of compound 1, (a) there is used one mole of the compound, (b). Specified 1(a) compounds are ethyl-aluminium sesquichloride, ethyl aluminium dichloride, and diethyl-aluminium monochloride while the sesquichloride is specified for (2), and the specified 1(b) is titanium tetrachloride.  The first component of the catalyst mixture may be separated before being brought into contact with the second component.  Specifications 828,201 and 828,692 are referred to.ALSO:An ethylene polymerization catalyst comprises a mixture of (1) a compound formed by reacting in an inert hydrocarbon (a) an alkyl aluminium compound with (b) a compound of a metal of one of sub-group IV, V or VI, and (2) an organo-aluminium compound wherein per 1 to 1.8 gram equivalent of the alkyl of 1(a) there is used one mol of the compound 1(b).  Specified 1(a) compounds are ethyl aluminium sesquichloride, ethyl aluminium dichloride and diethyl aluminium chloride while the sesquichloride is also specified for (2) and the specified 1(b) is titanium tetrachloride.  The first component of the catalyst mixture may be separated before being brought into contact with the second component.  In the example, the TiCl4-sesquichloride reaction product (1) is stated to have approximately the composition 3TiCl3.2AlCl3.  Specifications 828,201 and 828,692 are referred to.
Patent GB-217543-A (GB)
Title: Improvements in or relating to vertical filing cabinets
IPC: B42F17/02
Filed: 1923-12-06
Abstract: 217,543. Etablissements Recherches et Constructions Scientifiques Soc. Anon., (Assignees of BrouckÞre, L. de). June 12, 1923, [Convention date] Cabinets; clamping-devices; racks. - In a cabinet containing papers, drawings, &c. filed between covers 2 which are supported vertically between transverse bars 3, and which can be exposed for inspection on a folding-down table 4 constituting in its closed position a door for the cabinet, the movement of the table to its open position and the return movement of the covers to their vertical position are controlled by a single compensating device. The latter comprises a weight 11, or a system of springs, attached to one end of the table 4 by ropes 12 passing over pulleys 14, and to the lower ends of rods 20 fixed to the end pieces of the covers by ropes 17 passing over pulleys 18. The outer end of the table 4 is hinged to a connecting rod 7 swinging on a pivot 8 on the side of the cabinet. The covers, Fig. 4, are provided with end pieces 25 between which the papers &c. are normally held flat by springs on the two leaves of the cover. The springs of the upper leaf tend to roll it up, as shown in Fig. 4; their free ends are secured to a block 23 bevelled so as to engage in a notched portion of the end piece 25, to hold the upper leaf extended.
Patent GB-395557-A (GB)
Title: Improvements relating to the central electrodes of sparking plugs
IPC: H01T13/39
Filed: 1932-11-02
Abstract: 395,557. Sparking - plugs. FOX, S. J. R., 603, King's Road, Fulham, London. Nov. 2, 1932, No. 30829. [Class 7 (iv).] Plugs are reconditioned by cutting away the central electrode end close to the end of the insulator, boring and threading the cut-away end, and inserting a threaded rod C which extends as far as the original terminal. The lower end of the shortened electrode is compressed to grip the thread of the new terminal.
Patent GB-196872-A (GB)
Title: Improved means for reseating valves
IPC: B24B15/08
Filed: 1922-11-13
Abstract: 196,872. Froome, M. Nov. 13, 1922. Grinding interfitting parts together.-A device for grinding-in the valves of internalcombustion engines comprises a hollow body 1 threaded at 2 to screw into the engine wall and carrying a rotatable tool 6 tapered at 7 to engage the valve. The body is fitted at its upper end with a capnut 4 through which the tool projects. On the tool is a shoulder 10 serving as an abutment for one end of a spring 11, the abutment for the other end comprising a ring 12 between which and the nut 4 are disposed balls 13. The upper end of the tool 6 carries a thumbnut 14, by adjustment of which the length of projection of the tool eblow the body may be regulated. The tool is rotated by a bar 16 engaging in slots or castellations 17.
Patent GB-443011-A (GB)
Title: Improvements in or relating to telephone or like alternating current systems employing variable attenuation networks
IPC: H04B3/20
Filed: 1934-08-18
Abstract: 443,011. Intercommunication systems. TELEPHONE MANUFACTURING CO., Ltd., Martell Road, West Dulwich, London, and BURRIDGE, B. J., 1, Highview Avenue, Wallington, Surrey. Aug. 18, 1934, No. 30982/35. Divided out of 442,947. [Class 40 (iv)] A number of telephone or like circuits are connected to a common circuit by variable attenuation networks which are controlled selectively or simultaneously by switching means to make effective the connection between one or more of the circuits and the common line. As described, substations A, B, C are connected over normally open attenuation networks N1-N3 to the lines of an ordinary telephone system and over normally closed networks CN1-CN3 to a common line L which is controlled by a privileged official who may effectively connect one or all the substations to the common line and block the corresponding ordinary lines, for conference or priority purposes. The networks may comprise shunt or series metal rectifiers and their normal condition is determined by a bridge circuit R1-R4 connected to a D.C. source. The privileged official can by means of switch SW3 reverse the condition of all the networks to bring all the substations into conference and disable the ordinary telephone circuits even if in use, or by means of switch SW4, he can select any particular substation by reversing the condition of its associated pair of networks. The Provisional Specification also describes arrangements for connecting the output of an amplifier to alternative circuits or for making effective one or other of a pair of microphone loud-speaker circuits.
Patent GB-1478795-A (GB)
Title: Process for the manufacture of aromatic diamines
IPC: C07C213/02
Filed: 1975-07-24
Abstract: 1478795 Preparation of aromatic diamines BAYER AG 24 July 1975 [25 July 1974] 30988/75 Heading C2C Aromatic diamines of the general formula wherein R is C 1-6  alkyl or alkoxy, are prepared by treating a compound of the general formula with hydrogen in the presence of a metal of Periods 5 or 6 of Group VIII of the Periodic Table (i.e. Ru, Rh, Pd, Os, Ir or Pt) as the catalyst and of optionally substituted aniline as the solvent. The catalyst may be supported for example on a carbonate or sulphate of an alkaline earth metal, an argillaceous earth, aluminium oxide, silicon dioxide, silicic acid or carbon.
Patent GB-848494-A (GB)
Title: Improvements relating to label printing machines
IPC: B41F13/60
Filed: 1958-09-29
Abstract: 848,494. Cutting webs. GUHL & SCHEIBLER A.G. Sept. 29, 1958 [Nov. 18, 1957], No. 31107/58. Class 31 (1). [Also in Group XVI] A label printing machine comprises a printing cylinder 12 and a backing cylinder 13, a pair of feed rollers 14, 15 having segmental peripheral portions 14a, 15a coacting to feed a preprinted label web 16 provided with transversally aligned perforations intermittently to the cylinders, a registering device 17 in advance of the feed rollers having reciprocating teeth for engagement with the perforations of the web, and a cutting-device 23, 24 arranged behind the two cylinders operating in synchronism with the web feed to cut off labels from the web, and is characterized in that the device 17 and cutting- device 23, 24 are mounted on horizontallyslidable carriers 20, 25 displaceable towards and away from each other by equal distances by common drive means. As shown, the slidable carriers are formed as racks engaging a pinion 29 on a shaft 30. The shaft 30 is mounted in a slidable U-shaped support 31 which can be locked in adjusted position by a clamping-nut 41 (Fig. 6, not shown) on a pin 38, Fig. 4, engaging a slot 40: the shaft 30 carrying a clamping- nut (Fig. 5, not shown), engages a similar slot 32, Fig. 4. The supports 20, 25, Fig. 1, are moved equal amounts longitudinally in opposite directions by rotation of pinions 27 on a shaft 27a to adjust the length of labels cut from the web. The position of the supports 20, 25 is indicated by a dial 34 (Fig. 7, not shown) while the longitudinal position of the support 31, Fig. 4, is indicated by a mark 42 (Fig. 7, not shown) and a linear scale 43. The support 31, Fig. 4, is adjusted longitudinally to ensure that matter is printed in the correct position by loosening the nut 41 (Fig. 6, not shown), tightening the nut 36 (Fig. 5, not shown), and then rotating a handle on the shaft 27a, Fig. 1, to displace the supports 20, 25 in the same direction.
Patent GB-359704-A (GB)
Title: Method and apparatus for the conversion of starch to dextrine and the like
IPC: C08B30/16
Filed: 1930-10-17
Abstract: 359,704. Feeding devices for granular &c. material. RUSSIA CEMENT CO., Gloucester, Massachusetts, U.S.A.-(Assignees of Phillips, N. C.; 159, Washington Street, Gloucester, Massachusetts, U.S.A.) Oct. 17, 1930, No. 31163. Convention date, Dec. 9, 1929. [Class 59.] A hopper 28, for delivering starch on to a travelling belt 30 in a uniform layer is closed at the rear by an adjustable roller 52 and a scraper 60 and at the front by an adjustable pressure roller 62 which determines the thickness of the starch layer, and a scraper 78 and is further provided with a stirrer to break up any arch formation of the starch, consisting of a pair of helically curved bars 102, 104 mounted on a shaft 92. The pressure roller 62 and the stirrer 102, 104 are driven by an electric motor operating through a variable-speed gear to correlate the speed of the hopper mechanism with that of the conveyer belt.
Patent GB-466749-A (GB)
Title: Antigen for the determination of pregnancy
IPC: G01N33/531
Filed: 1935-11-11
Abstract: An antigen, for use by intradermal injection as a test for pregnancy, is obtained by treating placental tissue for removal of lipoids, extracting the residue by means of an alkaline liquid to obtain a solution of the protein characteristic of pregnancy and neutralizing the solution.  Placenta is washed in water to remove blood, ground, treated with acetone to remove lipoids and water, separated from the acetone, dried, and very finely ground.  The powder is extracted with N/10 sodium hydroxide solution and the supernatant liquid removed and neutralized to exactly pH=6,9, preferably with N/20 solution of hydrochloric acid and primary potassium phosphate serving also as a buffer.  A few drops of a preservative solution containing tri-cresol and glycerin are then added.  Specification 378,647 is referred to.
Patent GB-480851-A (GB)
Title: Improvements in or relating to electric cut outs, connectors and the like
IPC: H01H85/20
Filed: 1937-11-13
Abstract: 480,851. Switch and fuse contacts. DONOVAN, E. T. G. Nov. 13, 1937, No. 31201. [Class 38 (v)] A plug and socket of the rigid clip and blade type, provided with a nut b4 operated by a screwed spindle b for expanding the blades in the socket d in the manner described in Specifications 455,559 and 455,560, has a spring b9 to ensure immediate re-engagement of the threaded part b3 with the nut b<4> when rescrewing is commenced after withdrawal of the screw from the nut b4. The blades c and c<1> are forced into engagement with the socket d upon interengagement of the inclined faces of nuts b4 and b<6> when the nut b4 is moved longitudinally by rotation of the spindle b. The conical spring b<9> is located between the nut b4 and a head b<8> which may be an extension of the threaded portion of the spindle, or other suitable form. In modifications of the invention described, axial displacement of the spindle may be prevented by engagement of the head b<8> with an in-turned fork on blade c<1> or by a ball or pin co-operating in a recess in the spindle b.
Patent GB-1079315-A (GB)
Title: Line-scanning arrangement for television receivers
IPC: H03K4/62
Filed: 1964-08-04
Abstract: 1,079,315. Transistor saw-tooth current generators. COMPAGNIE GENERALE D'ELECTRICITE. Aug. 4, 1964 [Aug. 1, 1963], No. 31217/64. Heading H3T. A circuit for generating a saw-tooth current in a deflection coil L uses a PNPNP or NPNPN symmetrical switch 10. The circuit described is of the so-called " resonant return " type and the switch serves the purpose both of the main switching device and the conventional damper diode. The control pulses are derived from a multivibrator and are fed to the control electrode of the switch via a transformer 16. Diodes 17 and 18 direct the control pulses according to the polarity of points 19 and 20.
Patent GB-788022-A (GB)
Title: Process for increasing the strength of rolled steel products by torsional deformation beyond the yield point
IPC: C21D7/00
Filed: 1955-11-01
Abstract: 788,022. Altering physical structure. HENRY, M. Nov. 1, 1955 [Nov. 3, 1954], No. 31229/55. Class 83 (4). A process for increasing the strength'of a roller steel product after it has been rolled substantially to its final shape comprises deforming it by twisting it about its longitudinal axis or an axis-parallel thereto at a temperature preferably above 600‹C. and then twisting it in the opposite sense at a lower temperature so as to restore its shape, the deformation at the higher temperature being so great that the yield point is exceeded during the twisting at the lower temperature.
Patent GB-1008165-A (GB)
Title: New organic compounds derived from camphor and pyridoxine which are cardiotonics, respiratory and vascular analeptics, blood-pressure regulators and have the properties of vitamin b6, and process for their production
IPC: C07D213/66
Filed: 1962-08-16
Abstract: The invention comprises salts of acids derived from camphor and bases derived from pyridoxine, having the formula <FORM:1008165/C2/1> in which n is 1 or 2, R1 and R2 are -COO-, -S-COO- or -CH2COO- and are linked to form a ring as indicated by the dotted line, or R1 and R2 together are <FORM:1008165/C2/2> or <FORM:1008165/C2/3> where R6 is -COO-, -SO3-, -SCOS-or -SCSO-, and R3, R4 and R5 are hydrogen, halogen atoms, alkyl radicals or metal atoms. The acid derived from camphor may be camphoric, homocamphoric, camphosulphonic, camphocarboxylic or camphodithiocarboxylic acid.  The salts are prepared by reacting the acid with the base in a neutral solvent, e.g. water or ethanol.  Examples are given.
Patent GB-1346450-A (GB)
Title: Espagnolette device
IPC: E05C9/20
Filed: 1971-07-05
Abstract: 1346450 Bolts STANTEK AS 5 July 1971 [6 July 1970] 31475/71 Heading E2A An espagnolette fastening for windows &c includes channel shaped connecting members 3, 4, and connecting rods 6 coupled through transverse teeth (28, 29, 30) acting in sets of teeth A, B of different pitches to enable fine adjustment to the particular frame size. The lower rods 6 are coupled to plates 8, 9 oppositely moved by a follower F and mutually guided by bolts 12, 13 sliding in slots in each other. The members 3 have projections serving as horizontal bolts, and the vertical bolts are indicated at 5. Links 21 transmit the motion round the corners. The slots in the members 3 and 4 are undercut to retain their pins. Various lengths of rod may be used to fit different sizes of window frames. (For Figures see next page)
Patent GB-269813-A (GB)
Title: Improvements in methods of and apparatus for utilizing the heat of materials discharged from furnaces and kilns
Filed: 1926-12-11
Abstract: 269,813. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). Dec. 11, 1926. Cooling discharged materials.-The heat contained in materials, such as coke or clinker, discharged from furnaces and kilns is utilized in part for heating a steam-generator directly and in part for heating air which, after passing over the boiler elements, is reheated by further contact with the discharged material and used to support combustion in the furnace or kiln. The invention is described as applied to a rotary cement kiln 200 which discharges into a vertical shaft 10, the passage of the clinker through this shaft being retarded by a grate 12 below which extend inclined shoots 11, 13 serving to direct the clinker on to a chain-grate stoker 23 arranged below a water-tube boiler 30, 31. Enclosing the sides and bottom of the stoker is a casing 40 supplied by a blower 41 with air which, after passing through the clinker on the grate and over the boiler-tubes 31, enters the shaft 10 where it is reheated by the freshly-discharged clinker on the grate 12. Part of this heated air passes directly into the kiln 200, while the remainder is withdrawn by a fan 51 and delivered to the burner-pipe 3 along which pulverulent fuel from a hopper 4 is fed by a motordriven screw conveyer 5.
Patent GB-1530843-A (GB)
Title: Aluminium brazeable composite materials
IPC: B32B15/01
Filed: 1977-07-27
Abstract: 1530843 Brazeable Al composites SWISS ALUMINIUM Ltd 27 July 1977 [29 July 1976] 31487/77 Heading C7A A brazeable Al composite consists of a core material clad on one surface at least with a brazing alloy which cathodically protects the core. The core consists (in wt. per cent.) of an Al-based alloy containing Mg#0À05, Mn 1-1À5, Cr 0À1-4, Cu 0À1-4, Si 0À01-6, Fe 0À01-0À7 subject to usual impurities (except Mg) such as Zn # 0À5 and Ti # 0À1, and has a microstructure matrix containing Mn, Cu and Cr in solid solution, a uniform α-phase particulate dispersion containing Mn and Fe and a uniform dispersion of MnAl 6  particles which provides galvanic self-protection against intergranular corrosion The cladding consists of an Al-based alloy containing Bi 0À05-0À2, Si 4-14 and optionally Mg 0À5- 3 subject to usual impurities such as Fe#0À8, Cu# 0À5, Mn # 0À3 and Ti # 0À1. Both alloys may be cast and homogenized by heating to 600‹F, followed by heating to 1125‹F at 50‹F/hour. The core is cooled to 1025‹F at 25‹F/hour then air cooled. The cladding is held at 1000‹F for 8 hours before cooling. The composite, made by welding, can be hot (800‹F) and cold rolled, before fabrication into such articles as heat-exchangers, radiators, air-conditioners and gas liquefaction apparatus.
Patent GB-306586-A (GB)
Title: Improvements in processes for impregnating a continuously moving band of fabric withliquid
IPC: D06B3/10
Filed: 1927-11-23
Abstract: 306,586. Kilner, A. H. Nov. 23, 1927. Coating materials in long lengths.-In impregnating a band of fabric with liquid, a comparatively air tight space above the liquid is enclosed and air withdrawn therefrom, and the fabric is passed through the space and into and through the liquid. In the apparatus shown, the liquid, for example viscose, is contained in a chamber 1, the top of which is closed by a casting 2 shaped to carry two rollers 3 and provided with a slit 4 and an upper chamber 5. A small clearance 6 is allowed between the rollers 3 and the casing 2, this clearance communicating with the slit 4 which opens at its upper end into the chamber 5. The liquid fills the slit and clearance spaces up to the lower part of the chamber 5. A casting 7 secured to the top of the casing 2 carries two rollers 8 between which the fabric passes into the apparatus. A triangular piece of leather 9 is fixed to each end of the casting 7 and presses on to the ends of the rollers 8, and strips of leather 10 attached to the casting 7 make contact with the peripheries of the rollers. The slot 25 in the casing 7 and the chamber 5 are thus made air tight while allowing the entry of the fabric 12 between the rollers 8. A pipe 14 passes from the chamber 5 to the upper part of a tank 15, to which are also connected pipes 16, 17 connected respectively to a vacuum pump and to a supply tank. A plate 15a distributes the liquid as it falls into the tank and ensures that all the air bubbles therein are removed by the vacuum. The liquid is drawn from the tank 15 and forced into the chamber 1 by means of a pump 19a, flowing back to the tank through the pipe 14. If it is desired to keep the liquid at substantially atmospheric pressure, a vessel 20, open at the top, and connected at the bottom by a pipe 21 to the top of the tank 15, is provided. A branch pipe 22 from the pipe 19 leads to the top of the vessel 20, and an air filled float 23 operates a needle valve controlling the pipe 21. When the liquid in the vessel 20 rises above a predetermined height the needle valve opens and allows liquid to be drawn into the tank 15 by the vacuum therein. Liquid from the chamber 1 is carried round by the rotation of the rollers 3 into the upper part of the slot 4 and the space 5. Specification 304,168 is referred to.
Patent GB-1426234-A (GB)
Title: Labelling machine
IPC: B65C11/02
Filed: 1973-07-03
Abstract: 1426234 Label dispensers SATO KENKYUSHO KK 3 July 1973 [5 Oct 1972] 31611/73 Heading B8F A hand-held label dispenser in which a labelcarrying web is intermittently-advanced along a path, including a reverse bend 48, within a casing 1 to successively dispense labels from the web on step-wise one-way rotation of a toothed rotor 17 by a pivotable actuating lever 3, comprises an openable door or bottom member 41 pivoted to the casing at 42, a first base webguide member 26 pivoted on the shaft of the rotor and supported by the door in the closed position, and a second arcuate web-guide member 36, which is pivoted at one end 39 to the casing and linked at the other end to slotted extensions 29 of the first guide member. On opening of the door, after release of a latch 43, the first guide member is pivoted downwards from within the casing and pivots the second guide member away from its operative position adjacent the rotor thereby facilitating loading of the dispenser. A slack loop is formed in the spent web adjacent is formed in the web adjacent the dispensing opening during loading, and this loop is maintained during operation since both the label-carrying portion of the web is and the spent portion of the web are each drivably-engaged by the toothed rotor. The rotor is driven through a linkage 22, 24 and a one-way clutch 20 by spring-return movement of the lever on release of the initially squeezed lever grip 8. The upper surface of the first guide member co-operates with fixed casing shelves 33, Figs. 4 and 5 (not shown), to guide the label-carrying portion towards the dispensing opening and acts as a platen for a label print device 6 carried on the lever. The lower surface of the first guide member co-operates with upstanding ribs 46 on the closed door to guide the spent web away from the dispensing opening. In a modification, Fig. 10 (not shown), the lever 3 is actuated by an electric motor 9 through a worm-driven crank mechanism 10- 15.