baber/WOPTO huggingface dataset:
Patent GB-450435-A (GB)
Title: Improvements in or relating to the treatment of rubber latex
IPC: C08C1/04
Filed: 1935-09-09
Abstract: 450,435. Latex. KELLITT, W., Atherton Estate, Siliau, Malay States. Sept. 9, 1935, 25062. [Class 70] Latex is treated before shipment by filtering it, treating it with ammonia or otherwise rectifying its pH value, and passing it to a settling container to remove impurities. Latex is poured into tank 2 through a filter 3 and ammonia passed into it through pipe 4 which is lowered into the latex. The latex may also be stirred by stirrer 7. It is then transferred to the settling containers 8, by means of a chamber 9 operated by compressed air and pipes 14, 13. The settling containers, as described in Specification 450,434, [Group I], include stirrers 21, 22 and a sludge trap 18 closable by valve 19. After the latex has settled for 3 to 7 days, the sludge trap is closed and the latex run off through cock 27 into drums 33 contained in a discharging device 26, the latex passing through filters 30 and 31 and a screen 32 to withhold froth before passing into the drums through pipes 35 reaching to the bottom of the drums to avoid frothing. The latex in the settling containers may be stirred before being drawn off or latex of different rubber contents may be drawn off by having discharge cocks mounted at different levels on the settling containers.
Patent GB-504377-A (GB)
Title: Improvements in or relating to hollow moulded plastic airscrew blades
IPC: B29C33/52
Filed: 1937-09-15
Abstract: 504,377. Moulding screw propellers. DE HAVILLAND AIRCRAFT CO., Ltd., and KING, E. P. Sept. 15, 1937, No. 25122. [Class 87 (ii)] [Also in Group XXXIII] A hollow airscrew blade is formed from preformed complementary moulded plastic sections, the joint lines of which extend along the leading and trailing edges, the sections being homogeneously united under pressure. The plastic material comprises resinous or similar material of the thermoplastic or thermosetting type such as impregnated fibres of cotton, linen, or wood or laminated sheets of wood veneer and resin. The preformed sections are moulded between pairs of primary and secondary dies produced from a master pattern. As shown, two primary casts 13, 14 are taken of the pattern 10 from which cast iron dies are made. A pattern 15 of one section is then built up on the cast 13 and a secondary cast is taken from which one secondary die is made. A core pattern 117 is then added corresponding to the hollow interior and a second cast is taken from which the other secondary die is made. The two moulded sections are finally united under heat and pressure between the primary dies. During the final moulding a temporary core may be used, such as a fusible metal alloy, granular material such as shot, a soluble salt, or an inflated bag, which core is afterwards removed. Preformed struts 25, Fig. 6, may be incorporated in the blade or a permanent core of expanded rubber. The shank of the blade may be "up-ended" by means of an axially moving end mould. According to the Provisional Specification, the dies may be formed from wooden patterns of the two sections.
Patent GB-1400330-A (GB)
Title: Cylinder printing or punching machine
IPC: B65H29/50
Filed: 1973-05-25
Abstract: 1400330 Sheet ordering apparatus HEIDELBERGER DRUCKMASCHINEN AG 25 May 1973 [26 May 1972] 25136/73 Heading B8R A printing or punching machine having a main cylinder 4 and a reciprocating flat bed 2 comprises a sheet feeding device 5 and a gripper chain delivery conveyer 6 which is pivotable by means of an hydraulic ram 7 to a raised position to allow access to underlying parts of the machine. The delivery table 18 is supported by bars 19 connected to the cylinder 21 of an hydraulic piston and cylinder such that the table may be raised or lowered by causing the cylinder to move relative stationary piston 22. The cylinder is arranged to be pivotable around the piston by an hydraulic ram 28 such that the table 18 can be swung to the position shown in dotted lines on Fig. 2 simultaneously with the raising of delivery conveyer 6. The table 18 may be lowered as stacking progresses under the control of a stack height detector. Front and side joggers may be provided to align the stack. The fluid pressure in the various cylinders is controlled by a circuit incorporating a central switch for each piston and cylinder arrangement.
Patent GB-600136-A (GB)
Title: Improvements in protective covering devices for plants, seed and the like
IPC: A01G13/04
Filed: 1945-09-28
Abstract: 600,136. Cloches. PIMM, A. W. Sept. 28, 1945, Nos. 25192 and 30397. [Class 20(i)] Means for holding together sheets of glass or the like to form a cloche comprise an arched frame 1, shown in half elevation, having side members against which side sheets 3 of the cloche are adapted to rest with their lower ends engaged by upturned ends of the said side members, and a transverse member connecting the side members and adapted to support a sheet or sheets 6 forming the roof of the cloche, and clips 2 slidable on the side members of the frame to hold the side sheets of the cloche by engagement with their upper edges. The arched frame is preferably formed of two connected parallel rods. Clips 5 are also mounted on the transverse portion of the frame to engage the outer edges of the roof sheet or sheets. Additional clips of sheet metal (not shown) engage the edges of the side and top sheets, and other clips (not shown) may fit over the upper edges of two contiguous side sheets of adjacent cloches, to align them.
Patent GB-396568-A (GB)
Title: An improved process of and apparatus for the production of ketens by pyrolysis
IPC: C07C45/89
Filed: 1932-09-09
Abstract: Ketenes are obtained by passing a material capable of producing a ketene by pyrolysis, such as an aliphatic ketone or a secondary alcohol, through a mass of molten material at a temperature between 600-900 DEG  C.  The molten material may comprise lead, aluminium, an <PICT:0396568/IV/1> alloy of aluminium, zinc and lead or a fused salt such as copper chloride, lead chloride, sodium borate, or mixtures thereof or any other liquid stable in the above temperature range which will not volatilize appreciably.  According to the arrangement shown, the organic compound is passed through a heat-exchanger 3 and injected in the form of a spray into a body of molten material 6 in a reaction chamber 5.  The chamber 5 is preferably lined with non-catalytic material such as fireclay, cement or asbestos, and the portion of the pipe 4 inside the reaction chamber is preferably lined inside and outside in a similar manner.  The ketene produced passes out through pipe 23 and heat-exchanger 3. The molten material is maintained at the required temperature by circulation through a heating coil 12, either by means of a pump 9 or natural connection. Fresh molten material is introduced through pipe 14 either directly or via the heating coil 12.  Any unreacted material is returned to the process after cooling. Suitable starting materials are acetone and isopropyl alcohol and acetic ketene, ethyl ketene and propyl ketene may be produced.  The Specification as open to inspection under Sect. 91 comprises carrying out pyrogenetic reactions in general in a process similar to that described above.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 comprises carrying out pyrogenetic reactions by passing the raw material through a molten material enclosed in a reaction zone of enlarged cross section, and circulating the molten material through a narrow heating zone to supply the heat necessary for the reaction. According to the arrangement shown, the raw <PICT:0396568/III/1> material is passed through a heat-exchanger 3 and injected in the form of a spray into a body of molten material 6 in a reaction chamber 5.  The chamber 5 is preferably lined with non-catalytic material such as fire-clay, cement or asbestos, and the portion of the pipe 4 inside the reaction chamber is preferably lined inside and outside in a similar manner.  The product passes out through pipe 23 and heat-exchanger 3.  The molten material is maintained at the required temperature by circulation through a heating coil 12, either by means of a pump 9 or natural convection.  Fresh molten material is introduced through pipe 14 either directly or via the heating coil 12.  This subject-matter does not appear in the Specification as accepted.
Patent GB-413893-A (GB)
Title: Improvements in coin operated devices for ball games
IPC: G07F17/38
Filed: 1933-09-12
Abstract: 413,893. Coin - freed game apparatus. GODESAR, N., 11, Rue des Juifs, and MOCKEL, E., 7, Nispert, both in Eupen, Belgium. Sept. 12, 1933, No. 25254. [Class 27.] Billiard tables, hiring.-In a coin-freed apparatus for releasing the balls held in a conduit on a billiard table by a flap or similar device, after the insertion of two coins a rod 17. Fig. 1, is pulled out and, through the second coin acting as a coupling, draws out a winding- up bar 8 having a rack 7 engaging a pinion 6 to wind up a clockwork 4. The rod 17 is returned by a spring 23 and a pawl 27 thereon engages a shoulder 28, Fig. 4, on a lever 29 and turns this against the action of a spring 32 to release the balls, the retaining flap for which is connected to the lever 29 and 31. The bar 8 is returned slowly, under the control of the clockwork 4, by a spring 9 and a stop 33 thereon engages a rocking lever 34, after a certain time, to cause this lever to raise the pawl 27 thereby allowing the lever 29 again to return the ball-retaining flap to locking position. The position of the stop 33 is adjustable to vary the time that the balls are available for play. Coin action, mechanical-connection and multiple-coin.-The first coin 43, Fig. 3, drops to a ledge 41 on a support 40 at the bottom of the apparatus. It is held in position by an arm 37 extending laterally from the bar 8. The second coin 45 drops into a slot in a block 21 carried by the rod 17 and rests on top of the first coin. The coin 45, when the rod 17 is pulled, engages the arm 37 and pulls the bar 8 with it. If a second coin is not inserted, a notch 38 in the block 21 passes over the arm 37 without actuating the bar 8. Registering.-The bar 8 is connected by an arm 15 to a counter 16 which indicates the number of times the apparatus has functioned.
Patent GB-1043696-A (GB)
Title: Copolymers of propylene oxide and 1,2-epoxy-cyclo-octene-(5) and process for preparing them
IPC: C08G65/22
Filed: 1963-06-25
Abstract: The invention comprises unsaturated co-polymers of propylene oxide and 1,2-epoxy-cyclo-octene-(5). The co-polymerization is effected at temperatures in the range 20-120 DEG  C. in the presence of known catalysts for propylene oxide copolymerization, e.g. those obtained by treating organometallic compounds, e.g. triethylaluminium, monochlorodiethyl aluminium and dichloroethylaluminium with a small amount of water or with a chelating agent and water.  An active catalyst is obtained from 1 mol.AIEt3, 0.5 mol. water and 0.5 mol. acetylacetone.  The copolymerization may be carried out continuously or batchwise and in the presence of an inert diluent.  The co-polymers can be cross-linked with peroxides or with sulphur and accelerators according to known techniques.  The vulcanization of a copolymer containing 95 mol. per cent propylene oxide and 5 mol. per cent 1,2-epoxy-cyclooctene-(5) using the tetramethylthiuram disulphide/2-mercaptobenzthiazole accelerator system is described. Examples describe the preparation of coplymers containing 592-5/32.3 g. and 237/12.9 g. of propylene oxide/1,2-epoxy-cyclo-octene-(5) using the catalyst specified above.
Patent GB-737859-A (GB)
Title: Improvements in or relating to devices for preventing dirt entering and fluid leaving bearing surfaces
IPC: B60B35/00
Filed: 1952-08-07
Abstract: 737,859. Stuffing-box substitutes. COUNTY COMMERCIAL CARS, Ltd., and TAPP, E. T. J. Aug. 5, 1953 [Aug. 7, 1952 ; Aug. 26, 1952], Nos. 25284/54 and 25285/54. Divided out of 737,787. Drawings to Specification. Class 122 (5). A device for preventing dirt entering and fluid leaving bearing surfaces of two relatively rotatable parts, comprises two elements respectively connected to the relatively rotatable parts and provided with contacting sealing faces disposed transversely to the axis of rotation, at least one of which faces is provided with concentric circular grooves and projections and one of which elements has bonded to it a rubber holder on the opposite face to the sealing face, which holder is so connected to one of the relatively rotatable parts as to maintain the elements in contact and to permit a certain degree of universal movement of the element on the rubber holder relatively to the part that carries it. The device is identical with that described with reference to Figs. 2 and 3 in Specification 737,787. Specification 737,860 also is referred to.
Patent GB-239734-A (GB)
Title: Catamenial appliance
IPC: A61F13/64
Filed: 1924-10-23
Abstract: 239,734. Fairbrother, H., (Alder & Meister). Oct. 23, 1924. Press - button fasteners. - A press-button 2 is provided with a flap 3 to facilitate its manipulation.
Patent GB-294017-A (GB)
Title: An improved motor vehicle body
IPC: B60J5/06
Filed: 1927-09-26
Abstract: 294,017. Gowan, W. Sept. 26, 1927. Doors for passenger vehicles.-In road vehicles of the kind provided with a passengers' compartment and in which the driver is located in front of the said compartment, the front wall of the compartment comprises two doors, slidable one behind the other to permit of access to the compartment from either side of the centre line of the vehicle. As shown two curved doors i, i<1> slidable one behind the other comprise the front' wall of the passengers' compartment b. To provide the maximum head room the roof h is domeshaped with its highest point immediately above. the siding doors.
Patent GB-322010-A (GB)
Title: Improvements in or relating to electrical connecting devices
IPC: H01R24/58
Filed: 1928-09-04
Abstract: 322,010. Igranic Electric Co., Ltd., (Pacent Electric Co., Inc.). Sept. 4, 1928. Two-part couplings. - A socket 1 of insulating material carries a pair of contacts 2, 4, the contact 2 having an arm that lies in a groove intersecting the socket hole a, and engaging the end of the contact 4. When a plug is inserted the arm 2 is deflected breaking connection with the contact 4 and making connection with a contact on the plug. Two or more pairs of contacts may be provided for use with a corresponding plug. The contacts 2, 4 have a perforated extension for attaching a wire .
Patent GB-231097-A (GB)
Title: Improvements in picks, axes and like tools
IPC: A01B1/02
Filed: 1924-10-25
Abstract: 231,097. Matthewman, A., and Copley, H. E. Oct. 25, 1924. Fixing by self grip sockets.-In a pick, axe, or like tool provided with removable ends or points E, Fig. 1, having a tapered shank F to fit into a corresponding tapered socket in the blade or body, the ends or points E are forced out by driving a round drift, Fig. 3, with a flat side cut to form a wedge into a round hole G which intersects the tapered socket at right-angles. A pick point, an axe, a hammer bead and a claw may be included in the set of movable parts.
Patent GB-335338-A (GB)
Title: Improvements in brake mechanism for trolley buses and other vehicles
IPC: F16D51/20
Filed: 1929-08-21
Abstract: 335,338. Ransomes, Sims, & Jefferies, Ltd., and Garrett, F. A. Aug. 21, 1929. Blocks and shoes acting on drums.-In brake mechanism for road vehicles comprising duplicate brake shoes or duplicate sets of brake shoes and separate means for operating each shoe or each set of shoes, mechanism is provided to permit the operation of one shoe. or set of shoes only by one operative means, and of the two shoes or sets of shoes together by the other operative means, and so that under both conditions of operation only the transmission lever or levers of the operating means in action shall move, that or those of the other operating means remaining stationary. Fig. 1 shows a front sectional elevation of a driving wheel 1 having a brake drum 2 and brake shoes 3, 4 of segmental form arranged in pairs pivotally mounted at their upper ends on pins 5 and provided on their lower ends with lugs 7 connected by springs 8, Fig. 5, holding the shoes off the drum 2. The pairs of shoes 3, 4 are respectively applied to the drum by cams 9, 10, Figs. 7 and 8, the cam 9 being freely mounted on a shaft 11 operated from the driver's hand brake lever and having two dogs 12 to co-operate with dogs 13 on the end of the shaft 11, while the cam 10 is formed integral with the power brake shaft 14 and has two dogs 16 for co-operating with the dogs 15 on the cam 9. The dogs 12, 13 and the dogs 15, 16 each have a clearance between them permitting relative movement. When the shaft 11 is rotated tc operate the brake shoes 3 only, the dogs 12 engage with the dogs 13 and partly rotate the cam 9 while the dogs 15 merely recede from the dogs 16 due to the clearance between them. When the power shaft 14 is rotated, the dogs 16 engage the dogs 15 to rotate the cam 9 so that the two cams, and therefore the two shoes, move together, the shaft 11 remaining stationary, due to the clearance between the dogs 12, 13. A single shoe of the expanding ring type may be used instead of each pair of shoes 3 or 4. A modification is described in which, instead of arranging the dog clutches on the cams, they may be provided in any position between the shafts 11 and 14, as for example, between the transmission levers rotating these shafts.
Patent GB-895791-A (GB)
Title: Means for feeding fine-grained material into a fluidised layer reactor
Inventor: GUMZ WILHELM
IPC: B01J8/00
Filed: 1960-07-22
Abstract: 895,791. Feeding fluidized bed furnaces. BADISCHE ANILIN- & SODA-FABRIK A.G. July 22, 1960 [July 25, 1959], No. 25561/60. Class 51 (1). [Also in Group XXX] Material, such as coal in fine-grained form which is to be subjected to a heating reaction in a fluidized layer 12 in a reactor 11 is fed to the reactor by apparatus comprising a housing 6 arranged outside the reactor and connected therewith, below the level of the material therein, by a channel 8, the housing containing a material feeding roller 5 shielded from heat radiation from the reactor and the channel being cleared by a gas jet or jets. The radiation shield comprises a water-cooled screen 7 between the housing and the channel and the base 9 and roof 10 of the channel may also be water-cooled, as shown. The gas jet 18 is connected either directly to the channel as shown or alternatively as in Fig. 2 (not shown) to the lower part of the housing 6.
Patent GB-971469-A (GB)
Title: Improvements in and relating to turbo-generators
Inventor: RICHARDSON PHILIP
IPC: H02K7/18
Filed: 1961-07-17
Abstract: 971,469. Alternators. C. A. PARSONS & CO. Ltd. Sept. 26, 1962 [July 17, 1961], No. 25807/61. Drawings to Specification. Heading H2A. In large steam driven turbo-alternator installations the overall length of the unit is reduced by positioning the main exciter between the turbine and the generator. In order to avoid using gearing the main exciter is an A.C. machine operating at shaft speed and supplies the rotor of the generator through a static rectifier unit. A sub-exciter mounted outboard of the generator may also be an A.C. machine supplying the main exciter through a second static rectifier unit. The rectifiers may be semi-conductor devices.
Patent GB-535656-A (GB)
Title: Process for the fractional separation of hydrocarbon mixtures
IPC: C10G7/00
Filed: 1939-09-14
Abstract: 535,656. Distilling hydrocarbons. UNIVERSAL OIL PRODUCTS CO. Sept. 14, 1939, No. 25856. Convention date, Sept. 16, 1938. [Class 32] A stream of conversion products boiling within gasoline boiling range is separated into more than three fractions by fractionation into a gas-free condensate and a lighter fraction of gases and vapours, the lighter fraction being condensed, separated from uncondensed and undissolved gases, and stabilized by liberating regulated quantities of dissolved gases from which relatively heavy hydrocarbons are recovered, the stabilized distillates being separately recovered and desired heavy components of the uncondensed and undissolved gases being recovered by contact with an absorber oil, stripped therefrom and returned to the stabilizing step. As shown, a mixture of gaseous and vaporous products from a cracking operation are passed by line 1 to a first fractionator 3 from which a gasoline overhead passes to a second fractionator 20 where a heavy, gas-free gasoline is withdrawn through line 22. The vapours from 20 pass via line 27 and condenser 29 to accumulator 32 from which part is returned as reflux through line 36, the remainder passing through sub-cooler 41 to receiver 44 wherein uncondensed and undissolved gases are separated and pass through line 45 to absorber 47. The gas containing distillate is passed by pump 50 through heat-exchanger 52 either through line 53 to stabilizer 55 or through line 68 to stabilizer 58, stabilizer 55 being eliminated when it is desired to recover polymerization stock containing substantial quantities of propene. When used, gases from stabilizer 55 are discharged through line 59 and distillate is passed through reboiler 64 to stabilizer 58 from which gases pass via line 70 and condenser 72 to accumulator 75 whence gases pass through line 82 to storage or through line 82' to the absorber and liquid is directed by pump 78 partly through line 79<SP>1</SP> as reflux and the remainder discharged through line 79 to the polymerization processor elsewhere. The absorber 47 is charged through line 124. cooler 125 and line 114 with an absorber oil which may consist of heavy gasoline from fractionator 21 or a side stream drawn from fractionator 3 through lines 6, 15. Heat is supplied to the coil 21 of fractionator 20 and reboilers 64, 85 of stabilizers 55, 58 by regulated quantities of the side stream which are heated in a furnace 132 and supplied through line 137, returning through line 150 to fractionator 3. Enriched absorber oil passes through heating coils 98, 102 to stripper 101 from which the stripped gases pass through lines 118, 121 to stabilizer.
Patent GB-1335417-A (GB)
Title: Process for forming metallic layers on substrates
Inventor: BRETON E J
IPC: C23C24/10
Filed: 1971-04-19
Abstract: 1335417 Casting processes COMPOSITE SCIENCES Inc 19 April 1971 [2 April 1970] 25889/71 Heading B3F [Also in Division C7] An article having a metallic layer 2 thereon is formed by applying to an electrically conductive substrate 1 a self-supporting layer of a particulate metal or alloy and a binder, pressing on electrode 5 into contact with the layer and passing an electric current between the electrode 5 and substrate 1 to melt the metal particles and decompose the binder. The metallic layer formed may adhere to the substrate, if the latter is formed of steel, Ni, Co, Cu or alloys thereof, through a metallurgical bond, or it may be removed from the substrate if the latter is formed of tungsten or graphite or is coated with an electrically conductive parting agent e.g. an aqueous suspension of magnesium hydroxide. The metallic layer formed may be of iron-, cobalt-, nickel-, copper- or silver-based alloys and may also contain Si, Cr, P and B. Particles of an abrasive e.g. a carbide of W, Ta, Cr, Ti, Si or B, a metal boride, a metal silicide, a nitride or diamond, may also be included in the metallic layer. The binder is preferably polytetrafluoroethylene, a polymethacrylate, a polyacrylate or a polyvinyl alcohol and the self-supporting layer may be cemented to the substrate by an adhesive prior to the decomposition of the binder.