baber/WOPTO huggingface dataset:
Patent GB-544222-A (GB)
Title: Optical projection apparatus for facilitating inspecting, measuring or comparing contours
IPC: G02B21/00
Filed: 1940-04-24
Abstract: 544,222. Optical projection apparatus. HAUSER, H. April 24, 1940, No. 7404. Convention date. March 7, 1940. [Class 97 (i)] Apparatus for use in inspecting objects such as machined work-pieces and testing them against a drawing, of the kind provided with a series of objectives and a series of condensers of different powers mounted on movable carriers so that any objective and any condenser may be brought into use, comprises a base having (a) and upright bracket carrying a light source and a holder for several condensers adjustable to align any condenser with a light source, (b) a holder for several objectives similarly adjustable, (c) an image screen, and (d) a reflector for deflecting to the image-screen rays by which an objective forms an image of an object on a stage mounted with vertical and lateral adjustment on the bracket between the condenser and objective holders. Provision is made also for episcopic projection of an object on the stage. As shown, a specimen on an object-stage 5 supported by a carrier 22 slidable vertically on an upright 13 may be illuminated by a lamp 3 associated with any one of several condensers, e.g. 4, 8, 10, mounted on a turret 11 on the cross-head 12 of the column, and an image thereof projected via mirror 7 upon an image table 1 by one of several objectives, e.g. 6, mounted on a slide 17 displaceable in a guide 18 on the base 2. Notches in the turret 11 and slide 17 co-operate with spring pawls respectively on the head 12 and frame 2 to arrest any condenser or objective in operative position. Lugs are provided on the slide 17 co-operating with a bolt 23 depending from the object-stage carrier 22 so that warning is given if the object-stage is set too low to allow any particular objective to move into position beneath it. Opaque objects on the stage 5 may be illuminated for episcopic projection by a lamp 24 housed in the upright 13 and partaking of the movements of the object-stage carrier 22, the light from the lamp being deflected to the object by mirrors 25, 26 on a casing 27 which may be slidden horizontally from the inoperative position shown into operative position below the object.
Patent GB-453166-A (GB)
Title: Improvements relating to bearings
IPC: F16C17/08
Filed: 1935-03-09
Abstract: 453,166. Pivot bearings. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, WEDMORE, E. B., and SHOTTER, G. F., 15, Savoy Street, Strand, London. March 9, 1935, No. 7466. Drawings to Specification. [Class 12 (i)] A bearing for electric measuring-instruments and other apparatus has a pivot made from a spine of the family cactaceµ working in a jewel cup. Preferably, the spine may be from the prickly pear, and the end engaging the jewel cup is machined and polished into hemispherical shape.
Patent GB-164834-A (GB)
Title: Improvements in apparatus for making preserves
IPC: A23L3/10
Filed: 1920-03-13
Abstract: 164,834. Hall, J. I. March 13, 1920. Steam cooking-apparatus.-In making jam and the like the vapours arising from the boiling fruit &c. are utilized for preheating the material. Three forms of apparatus for this purpose are shown. Fig. 1 shows a steam-jacketed container A surmounted by a cooler vessel B and a reservoir C. Vapours rising from the container A pass through a valve E formed of gauze into the vessel B and heat the material therein, which can be passed into the container A by opening the valve E. The completed preserve is drawn off by a valve F. while liquor can be drawn off by a valve G fitted with a gauze, strainer and used for flavouring. Fig. 2 shows a jacketed vessel H, the vapour from which passes by a pipe M into the jacket of the preheating vessel J. In the form shown in Fig. 3 the substance to be preheated is placed in vessels Y standing in a tray X in the upper part of the jacketed vessel T.
Patent GB-1533275-A (GB)
Title: Method of recovering plastic from insulated wire scrap
IPC: H02G1/12
Filed: 1976-02-25
Abstract: 1533275 Recovering plastic from insulated wire WESTERN ELECTRIC CO Inc 25 Feb 1976 [7 March 1975] 07527/76 Heading C3L [Also in Division C7] The metal (e.g. Cu) conductor and plastics insulation of insulated wire are separated by agitating segments of the wire in heated dry powder. The metal and plastics may be individually recovered by mechanical gravity separation or by flotation. The powder may be a constituent of the plastics material to aid in later processing of the recovered material. Suitable powders (preferably heated to above 100‹ C.) include PVC scrap, CaCO 3 , hydrated Al 2 O 3 , clay, SiO 2 , glass, carbon black, mica, talc, asbestos, iron oxide, MgCO 3  and calcium silicate.
Patent GB-1036381-A (GB)
Title: Tension control system
Inventor: TORRANCE JAMES HERBERT
IPC: B21B37/50
Filed: 1965-02-22
Abstract: 1,036,381. Automatic tension control. GENERAL DYNAMICS CORPORATION. Feb 22, 1965, No. 7528/65. Heading G3R. In a system for maintaining constant tension in strip material in a tandem rolling mill, an electrically controlled hydraulic actuator for tensioning means which engage the strip, is influenced by an electro-hydraulic transducer responsive to the pressure in the hydraulic actuator. In the arrangement described, a strip 12 running between rolling mill stands 10 & 11 is tensioned by selling a potentiometer 28 so that a selected voltage is applied through an amplifier 26 to operate a control valve 22 for a rotary hydraulic actuator 19 pressing a roller 13 against the strip. The position of the roller is determined by a non-linear follow-up potentiometer 27 which is adjusted with roller 13 and balances the input to amplifier 26. Thereafter, any variation in tension is automatically corrected by a transducer 25, responsive to the differential pressure of actuator 19, which applies a compensating voltage to amplifier 26. In order to limit the range of positions of tensioning roller 13, a further potentiometer 43, which is adjusted with roller 13, varies the speed of an electric motor 33 driving the rolls of stand 10 so that tension is also varied by the change in the relative speeds of the rolls of the two stands.
Patent GB-1098503-A (GB)
Title: Device for tying off sausage shaped structures
Inventor: HAUSER WILHELM
IPC: A22C11/12
Filed: 1965-02-22
Abstract: 1,098,503. Tying off sausages. HAMACHANSELLA A.G. Feb. 22, 1965, No. 7538/65. Heading A2B. [Also in Division B8] A device for tying off sausage-shaped structures, comprises constricting elements movable relatively to each other for constricting the sausage-shaped structure, having a guide channel 5 in one of the constricting elements 1, a slide in the guide channel 5 for moving a U-shaped wire stirrup 4 through the channel 5 over the point of constriction of the sausage-shaped structure, and a counter slide 9 on the other constricting element (not shown), which counter slide comprises two mutually offset anvil surfaces for bending the two ends of the wire to form a ring 12 around the point of constriction when the elements are pushed together, and wherein the guide channel 5 lies in a plane inclined to the plane of the counter slide 9.
Patent GB-416033-A (GB)
Title: Improved turbine for hot driving media, particularly a gas turbine
IPC: F01D5/30
Filed: 1934-03-09
Abstract: 416,033. Elastic fluid turbines. AKTIEBOLAGET MILO, 32, Kungsgatan, Stockholm. March 9, 1934, No. 7575. Convention date, March 10, 1933. Drawings to Specification. [Class 110 (iii).] In a multi-stage turbine of the axial-flow or radial flow type having the diameters of the stages increasing towards the exhaust end, the rotors in the earlier stages which are of relatively small diameters and subjected to working fluid of high temperature, are constructed of a steel which does not " creep " appreciably due to the high temperature. Below a temperature point of 500‹ C. approximately, and where centrifugal forces on the rotors exert heavy stresses, the rotors are constructed of a stronger material. The two materials may be austenitic steel and martensitic steel respectively.
Patent GB-943749-A (GB)
Title: Door closers
Inventor: JERVIS LEONARD HENRY
IPC: E05F3/10
Filed: 1961-03-02
Abstract: 943,749. Door closers. TONKS (BIRMINGHAM) Ltd. Jan. 22, 1962 [March 2, 1961], No. 7604/61. Heading E2M. In a floor spring for a door adapted to close against a jamb the door spindle 9 has cam parts, e.g. rollers 10a, 10b, adapted to co-operate respectively with levers 11, 14 pivoted in the casing at 12 and bearing respectively against the spring 13 and dashpot 15, the arrangement being such that after the door has opened through a predetermined angle, e.g. 90 degrees,the spring is not further stressed. The device may be used with a door of opposite hand by employing a different spindle 9, interchanging the spring and dashpot, and pivoting the levers at a position 12a on the opposite side of the casing. The casing is mounted in an outer housing 5 adapted to be set in a floor and may be adjusted therein about the axis of the spindle 9 by means of a screw 26.
Patent GB-1218206-A (GB)
Title: A clamping fastener
IPC: F16B5/06
Filed: 1968-02-16
Abstract: 1,218,206. Clamps. PROJECTEURS CIBIE. 16 Feb., 1968 [20 Feb., 1967], No. 7647/68. Heading E2B. A clamping fastener comprises a bracket 12, a screw 13 and a clamping element 14 wherein the screw passes through an aperture 12b in the bracket and engages a threaded portion of the clamping element, so that when the screw is screwed up, the clamping element is drawn onto and guided by a guiding portion 12c of the bracket, the portion of the bracket surrounding said aperture being cup shaped and said portion' and the head of the screw having part-spherical co-operating surfaces. In the construction shown, a clip 13f is provided on the shank of the screw near the head to prevent the screw being removed from the bracket and a washer 15 held by a split pin 16 is provided near the end of the shank to prevent the clamping element coming off the screw. In addition to the threaded portion which is engaged by the screw, the clamping element has a guide portion 14b which cooperates with a plain portion of the shank of the screw. The fastener is intended for fastening a casing of a vehiclel lamp to a panel, the casing being provided with a flange 1b, the panel being clamped between the flange and the end edge of the clamping element; the casing is provided with an aperture through which the end porion of the clamping element protrudes as the screw is tightened, the clamping element being guided by the portion 12c of the bracket so that in the releasing position the end portion of the clamping element does not protrude from the casing so that the lamp can be passed through an aperture in the panel which is only slightly larger than the body of the casing. A modification is referred to in which a plurality of screws and clamping elements share a common bracket.
Patent GB-1328468-A (GB)
Title: Hatch cover
IPC: B63B19/203
Filed: 1972-02-18
Abstract: 1328468 Hatch covers NAVIRE CARGO GEAR AB 18 Feb 1972 [18 Feb 1971] 7692/72 Heading B7S A hatch cover comprises three pivotally interconnected sections 10, 11, 12, one end of a first, 10, of the sections being pivotally connected to one end of the coaming surrounding the hatch opening and a pressure fluid operated ram 16 is attached between the first section and a side of the coaming. A guided member 19 mounted on one end of the ram is movable in slot 18 on a side of the first section, a first pulley 20 is mounted on the guided member and a second pulley 21 is mounted on the first section adjacent the connection between the first and second hatch sections. A wire 22, one end of which is connected to the first section at point 23 between the first and second pulleys is guided over the second pulley then the first pulley and again the second pulley, and its other end is connected to the third section 12 at a point 24 towards the end of the third section remote from the connection between the second and third sections. The ram is in a contracted position when the cover is closed so that when the ram is extended the first and second sections are raised into a folded together vertical position. Subsequent contraction of the ram increases the distance between the first and second pulleys thereby raising the third section into a vertical position adjacent to the first and second sections.
Patent GB-136429-A (GB)
Title: Improvements relating to Couplings or Connections for Pipes, Tubes and the like.
Inventor: AMPHLET SAMUEL WILSON
IPC: F16L37/05
Filed: 1919-03-27
Abstract: 136,429. Amphlet, S. W. March 27,1919. Couplings, disconnectible; stufing-box joints. - A coupling for connecting the stem of a tyre valve to an inflator, of the kind in which a jointing rubber sleeve as c is compressed around the valve stem b by a cam-lever which effects the longitudinal movement of a containing socket a formed with a connexion as d for the inflator, is so constructed that the jointing-sleeve can be readily replaced when worn out. To effect this, the sleeve c is normally held within a holder e by an annular cupped pressure plate j held in place by a spring ring i, which is preferably split, and is held in a groove in the upper part of the holder e; or, in place of the spring ring, any other detachable holding-member may be used, such as a retaining-cap held in position by a bayonet-fastening. The sleeve c is compressed by moving the socket a by means of cams g on a lever f pivoted to the holder e and acting on a washer h arranged below the socket a.
Patent GB-645221-A (GB)
Title: Improvements in or relating to precombustion chambers for internal combustion engines
IPC: F02B19/14
Filed: 1948-03-15
Abstract: 645,221. Combustion chambers. STEYRDAIMLER-PUCH AKT.-GES. March 15, 1948, No. 7744. Convention date, July 15, 1946. [Class 7(iii)] A preliminary combustion chamber 2' fixed in the cylinder head 1 is provided with a restriction 7 so that the air forced' in through a passage 5 is deflected into an S-shaped path which cuts across the fuel jet from an injector 3.
Patent GB-1362512-A (GB)
Title: Semiconductor device and method for manufacture
IPC: H01L21/762
Filed: 1971-06-07
Abstract: 1362512 Semi-conductor devices HITACHI Ltd 7 June 1971 [15 June 1970] 7852/74 Divided out of 1360996 Heading H1K Lateral isolation of semi-conductor (e.g. Si) islands 12a, 12b, 12c separated from a semiconductor support member 21 by insulating films 26, e.g. of silicon nitride, is effected by selectively oxidized material 23, the, upper surface of which is substantially flush with the tops of the islands 12a, 12b, 12c. The islands 12a, 12b, 12c are parts of an initially unitary body which is selectively oxidized using the film 26 as a mask. After deposition of the preferably polycrystalline support member 21 over the film 26 and oxidized portions 23 of the initial body the latter is lapped down from its reverse surface until the oxide 23 is exposed and the islands 12a, 12b, 12c are thus separated from each other.
Patent GB-1501459-A (GB)
Title: Production of basic copper carbonate
IPC: C07F9/94
Filed: 1975-02-25
Abstract: 1501459 Basic copper carbonate EI DU PONT DE NEMOURS & CO 25 Feb 1975 [25 Feb 1974] 7877/75 Heading C1A [Also in Divisions Bl and C2] Agglomerates of crystalline particles of basic copper carbonate having uniformly dispersed therein bismuth in amounts in the range of 1-5% by weight based on the amount of copper present are prepared by a process comprising the following steps: precipitating hydrated copper carbonate particles by the simultaneous addition to water of solutions of cupric salts and alkali metal carbonate or bicarbonate to form a reaction mixture, said solutions being in such proportions as to maintain the pH in the range of 5À0 to 8À0, nucleating and converting the hydrated copper carbonate to basic copper carbonate in the reaction mixture at a temperature of at least 60‹ C., and growing agglomerates of the nucleated crystalline particles by precipitating basic copper carbonate containing bismuth by the addition to the reaction mixture of solutions of cupric salts, bismuth salts and alkali metal carbonate or bicarbonate in such proportions as to maintain the pH in the range 5À0 to 8À0 with the reaction mixture at a temperature of at least 60‹ C. until the average cross-sectional dimension of the agglomerate of crystallites is at least 10 microns. A particulate cuprous acetylide complex having the general formula wherein w=4, x = 0À24-4À0, y=0À24-2À40 and z = 0À67-2À80 and the Bi is present in an amount of 2-5% by weight based on the amount of copper present, and having a total surface area of at least 5 m.<SP>2</SP>/g. and average particle size of at least 10 Á is  produced by subjecting the basic carbonate as a slurry in aqueous medium at 50-120‹ C. to the simultaneous action of formaldehyde and acetylene at a partial pressure of not more than 2 atmospheres, the aqueous medium having a pH of 3-10 at the start of the reaction.
Patent GB-1492667-A (GB)
Title: Coupling heads
IPC: B60T17/04
Filed: 1975-02-26
Abstract: 1492667 Pipe coupling ROBERT BOSCH GmbH 26 Feb 1975 [26 March 1974] 7936/75 Heading F2G A coupling head adapted to receive a compressed air coupling member suitable for a tractor and trailer brake line coupling comprises a main body 1 wherein communicating angled passages 2, 3 define an inlet 4 adapted to receive an air line, and an outlet aperture 7 contained within a raised tubular portion 16 of the body which is surrounded by a sealing ring 8 clamped to the body of a flange portion 9. The sealing ring has preferably a reduced internal diameter 17 to reinforce the operative region of the seal, and an external chamfer 19 to facilitate reception of a coupling member (not shown). The sealing ring is preferably clamped to a cast body by a sheet metal claw 10 and sheet metal cover 20 provides means for closure of the passageway during the uncoupled state.
Patent GB-718367-A (GB)
Title: Improvements in or relating to the stabilisation of polymerisable organic compounds
Inventor: HAWARD ROBERT NOBBS
IPC: C07C7/20
Filed: 1951-04-05
Abstract: Polymerizable, liquid cyclic compounds having a CH2 = C< group, such as styrene, substituted styrenes, and vinyl pyridine, are stabilized by incorporating a compound <FORM:0718367/IV (b)/1> where R is CN or COOCnH2n+1, n being not greater than 4, for example 2-furfurylidene malononitrile, and methyl, ethyl, propyl, and butyl 2-furfurylidene cyanoacetates.  Styrene may be distilled in the presence of 0.001-0.5 per cent by weight of the inhibitor, preferably 0.05-0.1 per cent, with a still bottom temperature of 70-80 DEG  C.  For storage, 0.0001-0.01 per cent generally suffices.  The inhibitors may be used mixed with one another or with other inhibitors, e.g. t-butyl catechol.  Examples illustrate the inhibiting action of 2-furfurylidene malononitrile, and ethyl 2-furfurylidene cyanoacetate on styrene and a divinylbenzene concentrate which are heated at 80 DEG  C. in absence of air.  The Provisional Specification comprises also the use of stabilizers of the above formula but wherein CN is replaced by COOCnH2n+1, for example methyl, ethyl, propyl and butyl furfurylidene malonates.ALSO:Polymerizable liquid, cyclic compounds having a CH2=C< group, such as styrene, substituted styrenes, and vinyl pyridine, are stabilized during distillation by incorporating a compound <FORM:0718367/III/1> where R is CN or COOCnH2n+1, n being not greater than 4, for example 2-furfurylidene malononitrile, and methyl, ethyl, propyl, and butyl 2-furfurylidene cyanoacetates. Styrene may be distilled in the presence of .001-.5 per cent. by weight of the inhibitor, preferably .05-.1 per cent. with a still bottom temperature of 70-80 DEG C.  The inhibitors may be used mixed with one another or with other inhibitors, e.g. t-butyl catechol. Examples illustrate the inhibiting action of 2-furfurylidene malononitrile, and ethyl 2-furfurylidene cyanoacetate on styrene and a divinylbenzene concentrate which are heated at 80 DEG C. in the absence of air.  The Provisional Specification comprises also the use of stabilizers of the above formula but wherein CN is replaced by COOHnH2n+1, for example methyl, ethyl, propyl and butyl furfurylidene malonates.
Patent GB-864852-A (GB)
Title: Improvements in or relating to liquid pressure operated braking systems for vehicles
IPC: B60T11/10
Filed: 1959-03-09
Abstract: 864,852. Hydraulic brakes. HENRY, H. P. Jan. 11, 1960 [March 9, 1959], No. 8087/59. Class 103 (1). A master cylinder device for insertion in the coupling of a tractor-trailer unit comprises an hydraulic reservoir cylinder 10 having mounted therein a cylinder 15 wherein there is slidable a piston 16 to provide damping and act as a piston head 22, which generates hydraulic pressure in the cylinder 23, which is connected through port 34 to the brakes. Either the piston 22 or the cylinder 23 may be moved, the latter being preferably operated by the linkage 35, 37 shown in Fig. 2. The piston 16 is reciprocable between the sleeves 17 and 18 fixed in the ends of the cylinder 15; the spaces on both sides of it being connected to the interior of the housing 10 by small apertures 19 and 21 respectively. The packing ring 29 of the master cylinder is of the collapsing type so that liquid can flow into the cylinder 23, when the pressure there is reduced, from a chamber 31 behind the piston head, and an axial passage 32 in the rod 11, controlled by a spring-loaded ball valve 33, allows liquid to escape from the cylinder 23 when a predetermined pressure is exceeded therein. Specification 714,400 is referred to.
Patent GB-1182994-A (GB)
Title: Preparation of Pyromellitic Acid.
IPC: C07C51/265
Filed: 1968-02-20
Abstract: 1,182,994. Pyromellitic acid. MITSUBISHI EDOGAWA KAGAKU K.K. 20 Feb., 1968 [24 Feb., 1967], No. 8209/68. Heading C2C. A process for the preparation of pyromellitic acid comprises oxidizing a 1,2,4,5-substituted benzene, at least one substituent being a chloromethyl group and the other substituents each being an alkyl or alkoxymethyl group by contacting it in the vapour phase at a temperature of 330-650‹ C. with a gas containing molecular oxygen in the presence of a catalyst comprising an oxide of a polyvalent metal. Vanadium pentoxide is particularly effective alone or in admixture with oxides of Mo, Sn, Ag, Ce, W, Zn, Cd, Co or Ti. Oxides of alkali metals such as K 2 O or Na 2 O or salts thereof, such as K 2 SO 4  or phosphorus compounds such as P 2 O 5  may be added as catalyst promoters. The examples describe the oxidation of 4,6-dichloro-m- and 2,5 - dichloro -p - xylenes and 1,2,4 - trimethyl- 5-chloromethyl benzene.