baber/WOPTO huggingface dataset:
Patent GB-812046-A (GB)
Title: Improvements in airtight shaft seals for compressors or similar apparatus
IPC: F04D29/12
Filed: 1957-12-18
Abstract: 812,046. Stuffing-box substitutes. COMPAGNIE FRANCAISE THOMSON - HOUSTON. Dec. 18, 1957 [Dec. 21, 1956], No. 39373/57. Class 122 (5). A seal 2, Fig. 2, between a rotatable shaft A and its housing C comprising a pair of annular members 11, 12 mounted on the shaft and housing respectively and urged into contact with each other, has one of these members composed of a non-porous metal support having on its surface an open metallic structure which incorporates or is impregnated with a self-lubricating material. The open metallic structure may consist of a porous (e.g. sintered) metal coating of such metals as nickel, bronze, beryllium, N.S.M. 22 steel, aluminium, and impregnated with a self-lubricating material such as P.T.F.E. As shown in Fig. 2, the member 12, which is constructed as described above, is urged into contact with the member 11 by a bellows 13 attached to the housing C, the latter member, of a non-porous form of any of the above metals, being secured to the shaft. Several pairs of members 11, 12 may be used to form the seal 2. In modifications, both members 11, 12 may be urged together by separate bellows attached to the shaft and housing respectively, or as shown in Fig. 4, self-lubricating members 16, 16<SP>1</SP> are resiliently mounted at 13c in the housing C, one on each side of a non-porous metal plate 17 which is secured to the shaft A. The seal 2, when applied to a compressor as shown in Fig. 1, in contact with a corrosive atmosphere on the left-hand end of the shaft C and driven by a motor at the right-hand end of the shaft, is located between a pair of annular barriers 1, 3 attached to the housing C which serve to stabilize the pressure of a neutral gas fed from a supply 5 to the spaces between the barriers and the seal. A second oil lubricated contacttype seal 7 is also provided and a fan 6 is positioned between the two seals in order to circulate the gas so that a filter circuit 5 may separate any oil vapour. A third seal 9, also oil lubricated, is located on the outer side of a bearing 8, the lubricating oil being cooled by a heat-exchanger 4.
Patent GB-1163927-A (GB)
Title: Improvements in or relating to the Chlorination of Toluene
IPC: C07C17/12
Filed: 1966-09-02
Abstract: 1,163,927. Chlorotoluene. TENNECO CHEMICALS Inc. 2 Sept., 1966 [3 Sept., 1965], No. 39435/66. Heading C2C. A chlorinated toluene mixture having an increased para-isomer content is prepared by reacting toluene with chlorine in the presence of a ring-chlorination catalyst and in the presence of sulphur or an inorganic sulphur compound selected from sulphur mono or dichloride, carbon disulphide, thionyl chloride and a metal sulphide having at least one divalent sulphur atom, the sulphur or sulphur compound being at least partially soluble in the reaction mixture; with the proviso that, when the metal of the metal sulphide having at least one divalent sulphur atom is capable of forming a chloride capable of acting as a ring-chlorination catalyst, the first-mentioned ring-chlorination catalyst need not be present, and with the proviso that when the ring-chlorination catalyst is an iron halide inorganic sulphur compound is not sulphur, sulphur monochloride or sulphur dichloride.
Patent GB-1131589-A (GB)
Title: Machine for in-place moulding of cap liners
IPC: B29C70/80
Filed: 1967-08-29
Abstract: 1,131,589. Caps for containers. CONTINENTAL CAN CO. Inc. 29 Aug., 1967 [1 Sept., 1966], No. 39485/67. Heading B8T. [Also in Division B5] A closure cap for bottles, jars and cans is provided with a liner of rubber or curable plastics material moulded therein (see Divisions B4-B5).
Patent GB-1399688-A (GB)
Title: Egg product
IPC: A23L29/269
Filed: 1973-08-21
Abstract: 1399688 Cholesterol free liquid egg product STANDARD BRANDS INC 21 Aug 1973 [1 Sept 1972] 39602/73 Heading A2B A substantially cholesterol free liquid egg product comprises egg white and xanthan gum. Also present may be CMC, guar gum, dry non-fat milk solids, vegetable oil and lecithin. The product has a greater degree of freezethaw stability than the product not containing xanthan gum.
Patent GB-813293-A (GB)
Title: Method of subjecting ores and residues to a chloridizing roast and simultaneous sintering
Inventor: RIEDELSBERGER WALTER
IPC: C22B1/08
Filed: 1956-12-31
Abstract: In the chloridized roasting of ores, ore concentrates, roasting residues, slags and like sulphidiferous materials containing iron and non-ferrous metals to form a roasted product and a sublimate containing said non-ferrous metals, said sublimate is condensed, collected and reacted with sulphuric acid at below 600 DEG  C. to form non-ferrous metal sulphates and gaseous hydrogen chloride at least a part of which is recycled to the chloridized roasting process as such and/or in the form of a metal chloride. Non-ferrous metals referred to are copper, zinc, lead cobalt, nickel and titanium; specified metal chlorides are those of calcium and mag <PICT:0813293/III/1> nesium.  In a preferred embodiment of the invention, illustrated by the Figure, a starting material 1 (preferably containing an unroasted or only slightly roasted ore to increase the amount of sulphuric acid obtainable in a later stage) is mixed in a mixer 3 with recycle calcium chloride solution and additional, preferably solid, calcium chloride and the mixture pelletized in granulator 4 and passed to drier 7 employing a temperature of 250 DEG  C. maintained by waste gases or an oil burner.  The pellets are charged to a chloridized roaster 8 into which dry air is passed through line 9, and a mixture of recycle hydrogen chloride and hot flue gases (e.g. blast furnace gas poor in hydrogen or carbon dioxide) or oil or higher hydrocarbon burner gases is passed in at 10.  The solid product is withdrawn at 12 and the gases passed successively through mechanical dust separator 13 which removes iron oxide dust (which is returned to the pelletizer) and electrostatic precipitator 14 from which non-ferrous metal values are recovered and passed to the sulphating furnace.  The sulphur trioxide is then absorbed in tower 26 to yield sulphuric acid which contains any sublimate not precipitated and is passed to the sulphating furnace 17.  The sublimate is converted, e.g. at 550-570 DEG  C., to sulphates and discharged.  The non-ferrous metal values may be subsequently leached from the product and the residue remaining (comprising ferric hydroxide, calcium sulphide and slag) may be added to the raw materials used in the chloridized roasting process.  The hydrogen chloride liberated is returned to the chloridizing furnace through line 21 or alternatively added to the gas (already containing hydrogen chloride) emerging from the sulphur trioxide absorber. Thereafter the hydrogen chloride is absorbed in towers 23 and the so-formed solution used to reform calcium chloride (for re-use in the initial granulating steps) by reaction with granular limestone in agitators 29.  The final neutralization of the hydrochloric acid is preferably carried out with burnt or slaked lime.
Patent GB-936952-A (GB)
Title: Improvements in or relating to the manufacture of optical cam devices
Inventor: RAWSTRON GEORGE ORMEROD
IPC: B23Q35/128
Filed: 1958-12-09
Abstract: 936,952. Photographic processes. RANK PRECISION INDUSTRIES Ltd., [trading as TAYLOR, TAYLOR & HOBSON]. Dec. 7, 1959 [Dec. 9, 1958], No. 39750/58. Class 98 (2). An optical cam device consisting of a sheet bearing a curved .line representative of the desired cam shape and formed by discrete small dots, which may overlap, each of circular shape and uniform zone, such a device being used in conjunction with photo-electric sensing means to effect accurate mechanical movement in accordance with the shape of the cam curve as in Specification 936,951 is formed by effecting relative movements between a light-sensitive photographic sheet and an illuminated area defined by a small circular aperture in small steps in accordance with co-ordinate measurements defining the cam curve, and developing the exposed sheet to give a dark line on a translucent background. Each stepped relative movement is the resultant of two component relative movements, the component movement in one co-ordinate always being the same small step while those in the second co-ordinate are constituted by accurately measured movements appropriate to the equal stepped movement for the desired cam shape. Typically using polar co-ordinates the equal stepped component is the angular co-ordinate whilst the measured movement is the radial co-ordinate. For this purpose a photographic plate C is located by pegs on a support B secured to a turntable A rotated by a linkage connected to a rotatable sector H having a scale observed through a microscope H<SP>3</SP>. An exposure unit comprising a casing E housing a lamp, a shutter, and a condensing lens and carrying an objective E<SP>4</SP> which concentrates a beam of light through a circular aperture G carried by the casing close to the photographic plate, is mounted for sliding movement along guides F under micrometer screw control. If rectangular co-ordinates are used the rotatable sector and turntable will be replaced by a second micrometer screw and a sliding carriage for the support B. With the use of either set of co-ordinates the equal stepped movements may be applied to either the exposure unit or to the support for the photographic plate (as preferred and shown). Further the exposure unit may be arranged to form on the photographic plate a focused projected image of a circular aperture within the easing E instead of using the aperture as a mask for the plate. From a cam device produced by any of these methods, a copy comprising a translucent line on a dark background may be made by photographic printing.
Patent GB-1474063-A (GB)
Title: Education machines
IPC: G09B7/07
Filed: 1974-09-12
Abstract: 1474063 Educational appliances SONY CORP 12 Sept 1974 [14 Sept 1973] 39838/74 Heading G5G A teaching system comprises a plurality of student stations each provided with a CRT display device 1A ... IN and an answer switch 2A ... 2N; means such as video tape recorders 11A ... 11K to store a plurality of problems for display one at a time to the students; a circuit 3 to sum up signals corresponding to answers by the students; and a computer 4 which produces, on a CRT display 7, a graph corresponding to the output of the circuit 3 as a function of time, which differentiates the graph with respect to time and which, on the basis of this differentiation step and in dependence upon the graph, selects the next problem from the store for display to the students. The system may also include a television camera 12 located in a studio, devices 13, 14 and 15 for producing television signals from motion picture films, slides and manually written information respectively, and a write-pen 8 for use by a teacher, whereby additional material can be transmitted to the students.
Patent GB-841068-A (GB)
Title: Improvements in or relating to shelf assemblies
IPC: A47B57/06
Filed: 1957-12-23
Abstract: 841,068. Shelves. BERGKVIST, H. G. F. Dec. 23, 1957 [Dec. 29, 1956], No. 39844/57. Class 52(1) Shelves 15 are adjustably mounted on uprights 11 at their ends by means of gapped eyelets 16 which, by a transverse movement, can be engaged around the necks of frusto-conical parts 13 formed on or carried by the uprights.
Patent GB-993303-A (GB)
Title: New monothiophosphoric acid esters
Inventor: SCHRADER GERHARD
IPC: C07F9/18
Filed: 1962-09-13
Abstract: The invention comprises monothiophosphoric acid esters of the general formula <FORM:0993303/C2/1> wherein R is an unsubstituted or substituted alkyl radical or an alkenyl radical containing up to 4 carbon atoms, R2 is a cyclohexyl radical and Aryl is a phenyl radical substituted once or twice in the nucleus by halogen atoms and/or alkyl radicals and/or alkoxy radicals. They may be obtained by reacting the corresponding phosphites (R1O)(R2O)P(O)H with the appropriate aryl sulphenic acid chlorides or bromides suitable reaction conditions and specified aryl sulphenic acid halides being as disclosed in Specification 983,886.  An example is given for the production of a product in which R1 is CH3, R2 is cyclohexyl and Aryl is p-chlorophenyl.  The products have plasticidal properties (see Division A5).ALSO:An insecticidal composition comprises a solid or liquid carrier or diluent and an ester of the general formula <FORM:0993303/A5-A6/1> wherein R1 is an unsubstituted or substituted alkyl radical or an alkenyl radical containing up to 4 carbon atoms, R2 is a cyclohexyl radical and aryl is a phenyl radical substituted once or twice in the nucleus by halogen atoms (e.g. Cl, Br or F) and/or alkyl radicals and/or alkoxy radicals (see Division C2). Specified carriers or diluents are talc, chalk, bentonite and water (usually with a commercial emulsifier).
Patent GB-1350793-A (GB)
Title: Method for determining the oxygen activity in molten metals or metal alloys
IPC: G01N33/20
Filed: 1971-08-26
Abstract: 1350793 Electro-chemical analysis ALLMANNA SVENSKA ELEKTRISKA A B 26 Aug 1971 [27 Aug 1970] 40069/71 Heading G1N In a system for determining oxygen in molten metal using an expendable, plug-in, solidelectrolyte probe, a pre-amplifier is mounted in the head of the lance. A probe construction is shown with a solid electrolyte plug 20 in a silica tube; counter electrode 9; thermo-element 11, and plug in contacts 15, 16, 17. The silica tube holds sufficient air for an oxygen reference during measurement, and a "throttle" 19 allows for expansion.
Patent GB-1476973-A (GB)
Title: Hay-making machines
IPC: A01D78/10
Filed: 1974-06-06
Abstract: 1476973 Hay-making machines C VAN DER LELY NV 6 June 1974 [13 June 1973] 40086/76 Divided out of 1476971 Heading A1F The disclosure of this specification is identical to the disclosure with reference to Figs 7-10 of Specification 1476971 but the claims relate to the provision of guide means 80 for restricting the movement of the hinged tines when deflected out of their operative position by ground irregularities.
Patent GB-811428-A (GB)
Title: Improvements in or relating to scaffold units for use in scaffolding construction
Inventor: HAWES ALBERT HENRY
IPC: E04G1/14
Filed: 1954-11-24
Abstract: 811,428. Scaffolding. KWIKFORM Ltd. Nov. 23, 1955 [Nov. 24, 1954], No. 40177/57. Divided out of 811,427. Class 20(2) A scaffold unit comprising two uprights 15 connected permanently by brackets 17 to a cross member 16 has a clamp 30 at one or both ends for a ledger 24 which is inserted into an opening 25 from above. The opening 25 is of such a depth that when a putlog is placed on the ledger 24 it is level with the cross member 16. The uprights 15 have spigots 19 'for further uprights which are clamped in position by the clamping of the ledgers against them. In a modification a short upright tube acting as a socket for a removable upright 15 is connected to the bottom of the bracket 17 by a further short tube welded inside both and acting as an abutment for a further upright engaging in the top of the bracket 17. Specification 642,367 is referred to.
Patent GB-887266-A (GB)
Title: Improvements in and relating to electrical control means for drafting apparatus
IPC: D01H5/42
Filed: 1957-12-31
Abstract: 887,266. Automatic control systems. INDUSTRIAL NUCLEONICS CORPORATION. Dec. 31, 1957 [Feb. 20, 1957], No. 40489/57. Class 38 (4). [Also in Groups IX and XL (b)] Apparatus for drafting textile fibres comprises automatically controlled means whereby the weight per unit length of the output sliver is maintainedsubstantially constant. As shown, a plurality of raw slivers 10 are fed into a gill box comprising feed rolls 11, 12, a faller section 13, and delivery rolls 14, 15, a number of faller bars 16 being each equipped with protruding pins to process the fibres which form the slivers 10. Rotation of screws 19, 20 carry the fallers engaging the slivers to the right until they reach the output end of the section 13, whereupon they are disengaged and returned to the feed end by means of screws 18, 21. A motor 30 drives the section 13 and rolls 11, 12 at substantially constant speed, whereas the rolls 14, 15, calendar rolls 37, 38, and coiler 40 are driven through transmission 42 so that the speeds of the latter machine elements may be adjusted continuously by control shaft 44. A density-sensing element utilizes a radioactive source 50 and a detector 52 which develops a signal current for indicating the density of the fibres passing between the source and detector. The signal voltage applied to resistor 60 is compared with a fixed voltage from network 68, the output of amplifier 62 being coupled back so as to tend to maintain the amplifier-input at substantially zero potential. An indicator 72, responsive to the output voltage of the amplifier 62, is calibrated by potentiometer 74 so that its zero centre position corresponds to a selected density of fibre. Potentiometer 76 allows adjustment of the span of deviations from the centre-position. A network 84 provides a voltage representing the desired density of the sliver, this voltage being continuously subtracted from the voltage signal indicating the measured density, whereby the error voltage is applied to amplifier 102 which energizes servomotor 104 for driving the control shaft 44 of the transmission 42. The servomotor also drives a tachometer generator 108, and a portion of the tachometer voltage is fed back to the input of the amplifier 102 in opposition to the error signal voltage. Thus, the speed of the servomotor is maintained instantaneously proportional to the magnitude and direction of the error in the measured density of the sliver and, over a given period of time, the total amount of correction applied to the control shaft 44 is proportional to the time integral of the error signal over the same period. Specifications 873,629 and 887,267 are referred to.
Patent GB-1055688-A (GB)
Title: Unsaturated bicyclic hydrocarbons with condensed nuclei
IPC: C07C13/465
Filed: 1965-09-23
Abstract: Tetrahydroindenes of the formula <FORM:1055688/C4-C5/1> in which R and R1 are each hydrogen or methyl are obtained by introducing cyclopentadiene, which may be supplied wholly or in part as dimer, and butadiene, isoprene or dimethylbutadiene into a solvent in a reaction vessel preheated to 80-250 DEG  C. and co-dimerizing the feed.  The product is preferably subjected to pyrolysis at 300-900 DEG  C. to depolymerize homopolymers.  The feed may contain 2-5 mols of cyclopentadiene per mol of acyclic diene and the solvent is a C5-C10 saturated or aromatic hydrocarbon.  Dimerization is effected at 150-250 DEG  C. for 0.5-4 hours, e.g. using autogenous pressure in an autoclave. Low boiling materials may be separated before the pyrolysis which is effected in a heated packed tube.  A two-stage pyrolysis may be used, the first at 300-500 DEG  C., the second at 500-900 DEG  C. after removal of light products.
Patent GB-1181738-A (GB)
Title: Improvements in or relating to Rack and Pinion Assemblies
Inventor: ADAMS FREDERICK JOHN
IPC: F16H55/28
Filed: 1967-09-07
Abstract: 1,181,738. Rack-and-pinion gearing. CAM GEARS Ltd. 28 Aug., 1968 [7 Sept., 1967], No. 40876/67. Heading F2Q. In a rack and pinion steering mechanism, the rack 1 is maintained in engagement with the pinion 3 by a yoke 4 resiliently urged against the rack 1 by a metal or plastics tapered slipper block 10 which is arranged in a diametral groove 8 in the yoke 4 and is spring-urged at 12 to engage between an end plate 7, of the yoke housing 6, and an inclined surface 9 at the root of the yoke groove 8. In Fig. 3 (not shown), the yoke housing end plate 7 is replaced by a disc (14) seated and retained in the housing 6 by a circlip (15). A port (16) in the housing 6 permits insertion of a plunger (not shown) to press back and release the spring-loaded slipper to facilitate assembly of the rack and pinion, and further, the port (16) may be used as a lubrication point, an 0-ring seal (1.7A) being provided between the yoke 4 and housing 6. In Fig. 4 (not shown), the Fig. 3 embodiment is modified by forming the slipper 10 of nylon and seating it on a floating disc (17) bearing via a resilient ring (18) on the end support disc (14) whereby the yoke 4 and slipper 10 are cushioned against shock loads. In Fig. 5 (not shown), a resilient disc (19) is interposed directly between the end plate 7 (of Fig. 1) and the slipper 10 to similarly cushion the assembly and also eliminate noise and rattle.
Patent GB-1371831-A (GB)
Title: Mixer cooler
IPC: F28D7/08
Filed: 1972-09-06
Abstract: 1371831 Cooling liquids in bulk F W DIERKS and W DIERKS [trading as DIERKS & SOHNE KG] 6 Sept 1972 [17 Sept 1971] 41216/72 Heading F4S [Also in Division B1] A mixing container has a stirrer and a heat exchange jacket with coaxial circular baffles 31-33 in the base and 42-47 in the wall providing a continuous labyrinth between the coolant fluid inlet 23 and outlet 21 so that the container is uniformly cooled. The flow passage may be varied in cross-section to provide increased or reduced cooling effect locally, and the overall cooling controlled by varying the coolant fluid pump speed. Additional cooling air may be blown into the container by a blower and tangential inlet (8, 9, Figs. 1 and 2, not shown); it leaves through a filtered vent (12). The container is supported by a ring 26 having a transfer port 26<SP>1</SP>.
Patent GB-414075-A (GB)
Abstract: 414,075. Feeding sheets. HASLER AKT.-GES. VORM. TELEGRAPHENWERKSTATTE VON G. HASLER, Berne, Switzerland. Jan. 16, 1934, No. 1604. Convention date, Jan. 30, 1933. [Class 100 (i).] A machine for printing stamped impressions of different values in variable positions on cards is constructed with an adjustable guide 21 with turned up edges 21<a>, for registering the card laterally with respect to the printing- surface 4 on a roller 1, and longitudinal registration of the card is effected by bringing into action one of a number of pairs of front stops 23 which holds the card until the printing- surface 4 comes into action, the stops 23 being then depressed to permit the card to pass to the delivery rolls 8, 14. The guide 21 is folded double at the front and is fitted with a pin 20 which is received in one of a number of notches formed in the machine table 5. The preliminary feeding-in of the card is effected by an upper roller 9 and a lower roller 6 mounted in an oscillating lever 15. All but one set of stops 23 are held out of action by means of a series of levers 27, one set of levers being brought into action by a key 37 to permit the required set of stops to move into registering position under the action of springs 24<1>. The key can only be withdrawn from the particular shaft 28 of the set of levers 27 corresponding to the operative stops when these stops are caused to move to the inoperative position, so that only one set of stops 23 can be in operation at a time. In the normal working of the machine the operative stops are lowered to permit of the withdrawal of the sheet by means of a reciprocating slide 41 which is operated by a lever 44 actuated by a cam 43 driven in synchronism with the printing-couple.