baber/WOPTO huggingface dataset:
Patent GB-1484277-A (GB)
Title: Molecular weight regulation of ethylene-alpha-olefin copolymers
IPC: C08F2/38
Filed: 1974-08-23
Abstract: 1484277 Molecular weight regulated ethylene copolymerization UNIROYAL Inc 23 Aug 1974 [27 Aug 1973] 37103/74 Heading C3P Ethylene is copolymerized with an alphamonoolefin, and optionally with a non-conjugated polyene, in solution, in the presence of a catalyst comprising a vanadium compound and an organoaluminium halide, and in the presence of a molecular weight regulator of the formula or or wherein R and R<SP>1</SP> are hydrocarbyl or together form a polymethylene or alkyl substituted polymethylene chain, Y is hydrogen or a metal, Z is a metal, and n and m are equal to the valence of Y and Z respectively. Typical examples refer to the copolymerization of ethylene-propylene- 5 - ethylidene - 2 - norbornene, ethylenepropylene and ethylene-propylene-1,4-hexadiene or dicyclopentadiene in the presence of VOCl 3  or vanadium acetylacetonate-Et 3 Al 2 Cl 3 - zinc - o,o - bis(4 - methyl - 2 - pentyl)phosphorodithioate, copper N,N-dibutyldithiocarbamate, iron N - n - octadecyl - N - isopropyldithiocarbamate, zinc - o - butyldithio - carbonate, o,o - diethyl - hydrogen - phosphorodithioate and o,o-2,2-dimethyltrimethylene hydrogen phosphorodithioate, and in some cases hydrogen. The copolymers may be of sufficiently low molecular weight to be liquids.
Patent GB-1178990-A (GB)
Title: Cross feeder device for rolled metal plates or sheets or other rolled material
IPC: B01J27/06
Filed: 1967-08-14
Abstract: 1,178,990. Rolling. MOELLER & NEUMANN G.m.b.H. 14 Aug., 1967 [20 Aug., 1966], No. 37266/67. Heading B3M. A shifter, for moving rolled bars or plates 1 from a roller table 2 to a grate 3, includes carriages 4, each of which is movable along rails 10 by a rope 8, and which carries a pair of pivoted arms 5 and 6. The arms are biased by gravity to normally assume the positions shown in full lines, but can be lowered to the dotted positions, in order to pass beneath a workpiece, by means of a vertically adjustable rail 11. Movement of the carriage towards the right from the position shown, will cause the arm 6 to be pivoted downwardly, due to contact with a workpiece 1, the arm 5 then pushing the workpiece towards the grate 3.
Patent GB-995661-A (GB)
Title: Improved method of and means for mixing compositions in containers
Inventor: SMITH CYRIL JAMES
IPC: B01F29/60
Filed: 1962-10-02
Abstract: 995,661. Applying container closures. SECRETARY OF STATE FOR DEFENCE, and PORTSMOUTH AVIATION Ltd. Jan. 2, 1964 [Oct. 2, 1962], No. 37314/62. Heading B8T. [Also in Division B1] Containers filled with powders which are mixed therein (see Figs. 1, 4 and 5, not shown, and Division B1) are passed to an apparatus for dispensing closure discs and end caps (see Fig. 2, not shown) and thence to an end cap securing machine, Fig. 3. The container 2 has an internal end cap 59 steadied by a rotatable disc 158 supported by a resiliently mounted rod 57. Tools 155 are rotatably mounted at lower ends of levers 36 which pass through slots in a gear-wheel 151 and are pivoted thereto at 152. The upper ends of the levers have followers 153 engaged as shown by a rotatable and vertically movable cam 137 so that the tools 155 indent the container. By rotation of the gear-wheels 60, 151 by motor 61, the cam 137 and levers 36 are carried bodily round so that tools 155 act on the full periphery of the container. On completion, the jack 38 first raises cam 137 freeing followers 153 so that springs 154 carry tools 155 clear of the container. Member 39 then strikes and raises plate 42 against springs 147, and with it levers 36, gear-wheels 60, 151 and motor 61.
Patent GB-350406-A (GB)
Title: Manufacture of polyvinyl ester varnishes fast to light and water
IPC: C09D131/02
Filed: 1929-12-05
Abstract: Coloured coatings fast to light and resistant to water are formed by mixing with polyvinyl ester varnishes inorganic pigments such as ultramarine, ochre, brick dust, Prussian blue, terre verte, lamp-black, &c.  Softening or hardening agents, filling materials, metal powders, bronzes, &c., may be added.  A suitable varnish consists of vinyl acetate resin dissolved in a mixture of toluene, acetone, ethanol, and methyl glycol.  Specification 334,145, [Class 95, Paints &c.], is referred to.
Patent GB-316086-A (GB)
Title: Improvements in or relating to glass shaping machines
IPC: C03B9/193
Filed: 1928-12-18
Abstract: 316,086. United Glass Bottle Manufacturers, Ltd., and Moorshead, T. C. Dec. 18, 1928. blowing. - Relates to a revolving press and blow machine of the kind in which a registering head is provided for accurately registering a ring mould with a parison mould or a finishing mould, as described in Specification 281,383. According to the invention, the ring mould is carried by, and caused to move with, the registering head so as to permit the parison mould to be moved into the pressing position unhindered by contact with the ring mould. The machine comprises eight sets of moulds and registering heads carried by a frame which rotates about a central vertical column. Each registering head comprises a base 5 and two side portions 7 which slide vertically in guides 8 that form part of the revolving frame of the machine. The head is raised and lowered on these guides by two pairs of toggle levers 20, 21 operated by a roller 3 that runs in a stationary cam track 4. The guides are formed at their lower ends with stops 22 that limit the downward movement of the registering head when a parison mould is not in position thereunder. Each ring mould comprises two parts 30 carried by arms 31 hinged on a stud 33 secured to the underside of the head 5. The arms 31 are opened and closed by a roller 1 that runs in a stationary cam track 2, and in their closed position the arms embrace and are centred by a cylindrical spigot 34 projecting from the underside of the registering head. The means for registering the ring mould with a parison mould or a finishing mould consists of pins 60 which project downwards from the head 5 and extend between the arms 31. The lower ends of these pins are conical and they engage conical recesses 75 in the upper ends of the parison moulds or the finishing moulds. In the operation of the machine, a charged parison mould is brought under the registering head, as shown, and by the operation of the roller 3, the head is caused to descend until the ring mould rests itself on the parison mould, the pins 60 engaging the recesses 75 to centre the mould. A plunger 6 then descends through the registering head and the spigot 34 and presses the glass in the parison mould. The registering head is then raised slightly so that the ring mould is free from contact with the parison mould, which is then opened and swung to one side. The head is again lowered until it is arrested by the stops 22, and a finishing mould is raised and closed around the suspended parison, the pins 60 again serving to centre the mould.
Patent GB-870579-A (GB)
Title: Improvements in liquid level indicators
IPC: G01F23/56
Filed: 1958-11-21
Abstract: 870,579. Indicating liquid levels. MARSHALL SONS & CO. Ltd., and HOWE, C. A. Nov. 23, 1959 [Nov. 21, 1958], No. 37485/58. Class 123(1) The correct operation of a low level alarm device comprising a float 11 housed in a chamber 2 the upper and lower ends of which are respectively connected to the steam and water spaces of a boiler 1 by pipes 3 and 6, 7 is tested periodically by moving a 3-way valve 5 inserted in the lower connection 6, 7 from the normal working position shown to a position in which the chamber is connected to an exhaust pipe 8. With the valve in this position the water in the chamber discharges'therefrom and, if the device is operating correctly, the low level alarm will be given as a contact strip 13 secured to a rod 12 attached to the float bridges a pair of fixed contacts 14 as the float falls to the preset low level. By turning the valve to connect the pipe 7 to the pipe 8 the operator can also test whether the pipe 7 is blocked.
Patent GB-912442-A (GB)
Title: Improvements relating to the production of moulds for use in casting processes
Inventor: MEGGS BERNARD HARRY
IPC: B22C9/06
Filed: 1958-11-21
Abstract: 912,442. Electroforming hollow articles. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 23, 1959 [Nov. 21, 1958], No. 37588/58. Class 41. A process for the quantity production of hollow articles by an electro-deposition or casting process comprises the production of a master pattern having an electrically conductive polished exterior surface contoured to the shape of the article it is desired to form by electrodeposition, the forming one after the other of a plurality of production moulds each by depositing electrolytically on the master pattern a coating of metal, reinforcing the coating of metal on the master pattern by spraying metallic particles thereupon, and then withdrawing the master pattern from the reinforced coating in a non-destructive manner, the subsequent utilizing of the production moulds to produce by a casting process production cores in a suitable readily disposable material, these cores having an external finish comparable with that possessed by the master pattern, the cores then being used for the production of the desired hollow articles by an electro-deposition or a casting process followed by the removal by destruction of the production cores from the hollow articles if so desired. The process may be applied to the production of wave-guides of twisted form, a master pattern being made from stainless steel and having a coating of electrically insulating material applied to at least one end thereof to prevent deposition of metal thereon and permit of its easy withdrawal from the production mould.
Patent GB-1313255-A (GB)
Title: False twister for yarn
IPC: D02G1/08
Filed: 1971-08-11
Abstract: 1313255 Crimping yarns; twisters GLANZSTOFF AG 11 Aug 1971 [17 Aug 1970] 37631/71 Headings DID and D1F A friction-type, false-twisting apparatus, as may be used in twist crimping of yarns, comprises circular rings spaced from one another in the direction of yarn travel and on the inner, perhaps convexly curved, surfaces of which the yarn runs, the axes of rotation of the rings being arranged obliquely to the direction of yarn travel and all rings being rotated in the same direction. In one embodiment, the axes of rotation of the first and third rings, as seen in the direction of yarn travel, form equal angles with this direction and the axis of rotation of a second ring forms a right angle with these axes.
Patent GB-326835-A (GB)
Title: Improvements relating to chairs and stools
IPC: A47C3/18
Filed: 1928-12-20
Abstract: 326,835. Leabank Manufacturing Co., Ltd., and Kent, F. W. Dec. 20, 1928. Seat adjustments; rests, back; frames. - A chair of the kind having a vertically and angularly adjustable seat and an adjustble back-rest comprises a supporting frame below the seat, front and rear connections between the seat and said frame, and means accessible to the occupant, for adjusting the tilt of the seat in relation to the frame. Such a chair is shown in the drawing comprising a vertically adjustable standard q carrying a cruciform supporting frame d, f, to which seat a is pivoted at P and is adjustably securable at the front by means of the slots j and screws k. The back-rest l is adjustably securable on the arm o, by means of the slotted member n and screw p. Vertical adjustment of the member q within the member t may be obtained by pedal-operated means such as described in Specification 310,282.
Patent GB-764996-A (GB)
Title: "broke" disposal units for paper making machines
Inventor: STEWART ALEXANDER ERIC
IPC: D21F7/04
Filed: 1954-12-31
Abstract: 764,996. Broke removal in paper-making machines. DOMINION ENGINEERING WORKS, Ltd. Dec. 31, 1954, No. 37851/54. Class 96. A paper pulp web is transferred by a suction pick-up roll 11 from the wire cloth of a Fourdrinier machine to the underside of a felt 12 which takes it to a press 14, 15, the suction roll 15 aiding in transferring the web to a lower felt 13 by which it is carried through a press 16, 17, the top roll of which may be of granite, and the lower roll 17 a suction roll. A lead strip may be cut in the web at a position 18 between the two presses, and the broke portion doctored at 41 from the granite roll 16, the broke passing over the tail-plate 42 of the doctor and into a trough 22 extending transversely of the machine and containing a screw-conveyer, which feeds the broke to one side of the machine and re-pulps it with the aid of water-sprays, a pipe then returning it to the pulp-supply system of the machine.
Patent GB-798769-A (GB)
Title: Improvements relating to chilling, storing and transport of foodstuffs and the like
IPC: F25D7/00
Filed: 1956-12-11
Abstract: 798,769. Cooling foodstuffs; refrigerators. MORRISON, W. L. Dec. 11, 1956 [Feb. 20. 1956], No. 37890/56. Class 29 In chilling perishable material, such as pre-frozen food either wrapped or unwrapped, for storage and transport in an insulated container 1 by a refrigerant fluid, such as liquid air or nitrogen or a cold gas all at atmospheric pressure, the fluid is so distributed within the container that the contents receiving most heat through the walls are chilled to a lower temperature than the rest. As shown in Fig. 4, the upper goods 9 which are subject to most cold loss are separated from the rest 6 by an absorbent mattress 8 and liquid nitrogen is discharged on to them by pipes 11, 12, the nitrogen thereafter passing through mattress 8 to chill contents 6 to a lesser extent. As shown in Fig. 2, the goods around the side walls are subject to greater cold loss than the rest and the refrigerant is caused to flow first and mostly through these goods by a parting sheet 10 covering the central area of the container. In a further form, the interstices between the goods subject to the greatest cold loss are greater than between the rest of the goods so that more refrigerant reaches the former.
Patent GB-1209215-A (GB)
Title: A tracer for mechanical copy machining
Inventor: HEINSOHN HELMUT
IPC: B23Q35/26
Filed: 1968-08-08
Abstract: 1,209,215. Copy turning. KARL SCHMIDT G.m.b.H. 8 Aug., 1968 [9 Aug., 1967], No. 37992/68. Heading B3T. A tracer for mechanical copy-machining comprises a disc 1 having a series of peripheral recesses 2 defining tracing points 3, the disc 1 being mounted on an arm 4 pivoted at 5. When a tracing point becomes worn through contact with, e.g. a rotating master 6 the disc 1 is rotated to bring a new point into operation.
Patent GB-1535878-A (GB)
Title: Flashbulb arrangement
IPC: G03B15/04
Filed: 1976-09-14
Abstract: 1535878 Flash-bulbs PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Sept 1976 [15 Sept 1975] 38016/76 Headings G2L G2X [Also in Division H2]  An electrically triggered combustion-type flashbulb is shielded from stray electrical fields which might result in premature firing by a Faraday cage arrangement, part of which 13, 50 comprises a transparent layer of electrically conductive material. The cage is surrounded by a mass of ignition paste and is connected to one of the leads 52, 53 to the bulb. In one arrangement, Fig. 3, the transparent layer 13 is provided on the inside surface of a plastics cover 10 on a multiple flash unit in which conventional flash-bulbs 2 and (1-8), Fig. 1 (not shown) are mounted for sequential firing. The layer 13 is connected to a conductor 60 on a printed circuit board 41 by a metal reflector 40, which forms the rest of the Faraday cage, and thence to one of the power supply leads. In another arrangement, a flash-bulb 1, Fig. 6, is provided with a transparent layer 50 on the inside of the envelope connected to a lead 52. In a further arrangement a flash-bulb has a cylindrical metal case (30), Fig. 5, (not shown) which has an end window (32) provided with a layer of transparent, conductive material. In all cases the transparent layer is of stannous or indium oxide.
Patent GB-1080536-A (GB)
Title: Improvements in or relating to chemical etching
Inventor: BOULTON CHARLES
IPC: C23F1/08
Filed: 1964-09-18
Abstract: In a method of etching wherein those portions of a metallic surface not protected with a resist are dissolved with an etchant, the etchant is supplied continuously in the form of a foam to those parts of the surface not protected with the resist.  The foam may be produced by aeration of the etchant (e.g. using small jets of air or another effectively inert gas) of a bath of etchant to cause a foam to form upon the top of the etchant, the surface to be etched being so positioned that it will not be in the liquid etchant but will be covered by the foam being continuously supplied by aeration. The etchant may be aqueous ferric chloride and may contain a foaming agent (e.g. that sold under the Registered Trade Mark "TEEPOL"). When copper is being etched and the etchant has become fouled with copper it may be regenerated by electrolysis using two graphite anodes and a brass plate disposed between the rods as cathode.  The apparatus used in the etching may comprise a narrow tank 1/3 filled with etchant wherein compressed air is forced through holes in the wall of a pipe extending along the bottom of the tank so as to fill the space above the etchant with foam. The top of the tank may be double walled the inner wall being provided with a series of holes, and the outer wall connecting with a fume escape tube.
Patent GB-340749-A (GB)
Title: Improvements in a process for producing structural materials from organic fibrous materials, the pores of which are completely filled up with high-melting pitch
IPC: D21H17/61
Filed: 1929-12-13
Abstract: 340,749. Insulating materials. RUDIN, E. and KOLLBRUNNER, H., Rapperswil, St. Gall, Switzerland. Dec. 13, 1929, No. 38293. Convention date, Dec. 13, 1928. [Class 140.] In a process for producing structural materials for heat, cold and sound insulation from organic fibrous materials such as paper, cardboard, and fabric, the pores of which are completely filled with high-melting tar pitch, the materials, impregnated with low-melting tar pitch without solvents, are heated below 150‹ C. in an air or gas stream, whereby the low-melting pitch is converted into high-melting pitch. A vessel containing plates of corrugated cardboard is evacuated and coal tar soft pitch of melting point 40-45‹ C. heated to 120‹ C. is allowed to enter. Pressure greater than atmospheric : s applied, the soft pitch is drawn off and the impregnated plates are heated at 130‹ C. in an air stream for four hours.
Patent GB-818550-A (GB)
Title: Dual valve for controlling liquid level
Inventor: SWEENEY MORGAN L
IPC: G05D9/04
Filed: 1956-12-15
Abstract: 818,550. Fluid-pressure servomotor control systems. PARKER-HANNIFIN CORPORATION, [formerly PARKER APPLIANCE CO.], Dec. 15, 1956, No. 38332/56. Class 135. A liquid level control device comprises two inlet valves in series, and closable individually by separate pilot valves, each operated by a float, the floats being operable at the same or different levels. The inlet valves are housed in a body 10, Fig. 1. comprising an inlet section 11, an outlet section 12 and an intermediate section 13 secured together by bolts 14. The first valve comprises a closure member 33, carried by a diaphragm 32, and spring urged to a seat 27. The second valve, similarly, comprises a closure member 44 carried by a diaphragm 43 and spring-urged to a seat 38. A restricted passage 63 through the stud 55 permits fluid to pass to the diaphragm chamber 61. Similarly, a restricted passage 64 permits fluid to pass to the diaphragm chamber 62, the two chambers having a common wall 60. Bores 66, 67 lead from the chambers 61, 62 respectively to pipes 72, 73 extending to pilot valves 74, 75, Fig. 2, opening to the tank interior and adjustably clamped to a pipe bracket 84. The pilot valves are operated by floats 89, 90, set for different liquid levels. Thus as the tank fills float 90 will be raised to the position shown in Fig. 2 to close the pilot valve 74 and permit pressure to build up in the diaphragm chamber 61 to ultimately balance the inlet pressure, whereupon the spring 58 will seat the closure member 33. Should this fail to happen and the liquid level continues to rise float 89 will be raised to close pilot valve 75, causing the second inlet valve closure member 44 to close. Reference, has been directed by the Comptroller to Specification 711,113.
Patent GB-1424965-A (GB)
Title: Devices for measuring cutting tooth angles of cutting tools
IPC: B23Q17/09
Filed: 1974-09-03
Abstract: 1424965 Measuring angles ALBERT STRASMANN PRAZISIONS-WERKZEUG-UND MASCHINENFABRIK 3 Sept 1974 [17 Sept 1973] 38352/74 Heading G1X A device for measuring cutting tooth angles, i.e. rake and clearance angles, of cutting tools comprises means 5, 6 defining two perpendicular edges mounted for angular movement substantially about a point of intersection of the edges, and a scale for determining the angular position of the edges. Said means 5, 6 is constituted by two blades which in the described embodiment are removably mounted in a slide 4 which moves along an arcuate guide 3. The guide 3 may be mounted on a guide rod 2a of a base plate 2 for vertical movement relative thereto, the rod 2a having a scale so as to enable the blade edges to be centred correctly at the centre head h of the tool. A magnifying optical system 8 may also be pivotally mounted on a holder 7 allowing the device to be used for straight or spiral fluted tools of either right or left hand twist with right or left hand cutting teeth.
Patent GB-369637-A (GB)
Title: Improvements in or relating to grab buckets
IPC: B66C3/12
Filed: 1930-12-23
Abstract: 369,637. Grab-buckets. PRIESTMAN, S. H., Holderness Foundry, Hull. Dec. 23, 1930, No. 38728. [Class 78 (iv).] Relates to grab-buckets of the kind wherein the jaws are hinged so as to swing down to discharge their load, being urged into their load retaining position by tension in the closing ropes, and held in this position by constraining links pivoted at their lower ends to the jaws and movable lengthwise in guides, pivoted to upper parts of the grab, and capable of being locked to the guides. According to the invention a movable detent is provided for each link which normally tends to move into a position in which it can lock the link to the guide when these are in a predetermined relative position, but which tends to move into non-locking position when the jaws approach one another within a certain limiting distance. As shown, the jaws 10 are pivoted at 12 to arms 14 which are pivoted at 16 to a'member 18 adapted to receive a sliding rod 20 connected to the holding rope 28. Constraining links 30, pivoted to the jaws at 31, can slide through guides 32 pivoted at 52 to toggle links 22 which are pivoted to the arms 14 and to a casting 26 on the rod 20. The closing ropes 34 are guided over sheaves 36, 38, mounted on the member 18 and the links 30 respectively, and are anchored by wedges 40 engaging sockets 42 formed in lateral extensions of the links. On hauling in the closing ropes 34 with the jaws apart, and tilted as shown in dotted lines in Fig. 2, the jaws swing upwards causing the links 30 to slide upwards through the guides 32 until the ends of weighted or spring controlled pawls 44 engage notches 46 in the links and lock the links to the guides and hold the jaws in the raised position as shown in Fig. 1. The grab is now lowered on the holding rope 28 and digging proceeds. As the jaws move inward, the links 30 approach the vertical and cam surfaces 48 thereon ride up guides 50 on the casting 26 and permit.the pawls to move out of the notches as shown in Fig. 2. The jaws will now swing down to discharge their load on paying out the closing ropes. The pawls may be disengaged from the notches by stops on the links. 22 engaging their lower ends. In order to vary the angular position of the jaws when apart, the guides and links 22 are provided with additional pivot holes 56, 56A, respectively, which are in register when the grab is in the closed position. Specification 338,225, [Class 78 (iv), Loading &c.], is referred to.