baber/WOPTO huggingface dataset:
Patent GB-1489312-A (GB)
Title: Manufacture of homopolymers of 4-methyl-pentene-1
IPC: C08F10/14
Filed: 1975-02-13
Abstract: 1489312 Poly[4-methyl-pentene-1] BASF AG 13 Feb 1975 [14 Feb 1974] 6129/75 Heading C3P A homopolymer of 4-methyl-pentene-1 is prepared by the polymerization of the monomer (a) using a Ziegler/Natta catalyst system comprising a TiCl 3  component and an alkyl aluminium component, wherein the atomic ratio of Ti to Al respectively in these components is 1 : 1 to 1 : 100, (b) wherein the polymerization is carried out at 90-150‹ C., in the presence of both H 2  and an inert gas comprising N 2 , He, Ne, Ar, Kr, at a total pressure of 3-20 atmospheres absolute, and (c) wherein the partial pressure of the inert gas is 0À1-17 atmospheres absolute and the H 2  partial pressure is 0À01-10 atmospheres absolute. An excess of 4-methyl-pentene-1 may be present as a liquid to serve as the polymerization medium. Preferred alkyl aluminiums are Et 2  AlCl, iso-Bu 2 AlCl and menthyl aluminium sesquichloride.
Patent GB-572372-A (GB)
Title: Apparatus for improving the effective use of eyesight and preventing strain on the eyes
IPC: G02C7/16
Filed: 1944-04-04
Abstract: 572,372. Goggles. BURDICK, C. L. April 4, 1944, No. 6217. [Class 97 (i)] A device for limiting the amount of light entering the eye comprises a viewing slit or slits adjustable in width and level. As shown, a mask 1 is provided with apertures 4 which are fitted with shutters 5, 51 and adjustable up and down by means of racks 6, 6<1> and pinions 7, 71 so that the width and level of the slits may be arranged to give the minimum field of view at the optimum level for the particular purpose in view. The front of the mask, adjusted as close to the lashes as possible, is in a plane perpendicular to the axis of the eyes and a part 3 on either side is pressed back to exclude any extraneous light from the sides. Overlapping slotted projections in the top centre of the mask co-operate with a locking screw 12 to enable adjustments to be made for interpupillary distance. A soft rubber lining 13 is fitted to the inside and provision may also be made for the addition of corrective lenses.
Patent GB-902344-A (GB)
Title: Power driven stair climbing attachments for trucks
IPC: B62D55/075
Filed: 1961-02-21
Abstract: 902,344. Powered hand trucks; endless track vehicles. NEW DESIGN & DEVELOPMENT CORPORATION. Feb. 21, 1961 [April 7, 1960], No. 6294/61. Classes 79(1) and 79(3). [Also in Group XXXII] An attachment, for a porter's trolley, whereby a load can be transported up stairs, comprises a pair of parallel side plates 19 secured together by frame members 20, 21 and a pair of endless belts- 45, a pressure plate 46 secured to the lower edge of each side plate being parallel to the span of each endless belt in the underformed state. At one end, the endless belts pass over drums 27 fixed to a shaft 25 mounted in bearings carried by the side plates and driven through a gearing 26 by an electric motor 20 connected to an external power supply. At the other end, the belts pass over drums 42 non-rotatably attached to a shaft 30 which is mounted in bearings 31 carried by the side plates. Each bearing 31 is pivoted at 34 to the side plate 19 and is connected by a bolt 37 to a belt tensioning device 36, 39, 41 co-operating with slots 38 and 33 in the bearing and side plate respectively and an ear 40 attached to the side plate. Each side plate is provided with a lug 52, Figs. 3 and 4, which may be engaged by a hook 51 provided on the frame member 12 of the trolley which comprises the frame members 12, 17 and an end plate 11 and is provided with handles 13 and transport wheels 14 and 16. A spring-loaded catch 53, 54 (Fig. 5) is attached to each side frame 12 of the trolley and co-operates with a selected one of a series of holes 39 in the plates 19 whereby the device may be attached to the trolley in one of a number of positions.
Patent GB-969628-A (GB)
Title: Improvements relating to electrical rectifying equipment
Inventor: ALLENDEN DENNIS
IPC: H02M7/08
Filed: 1961-02-21
Abstract: 969,628. Rectifying. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 12, 1962 [Feb. 21, 1961], No. 6348/61. Heading H2F. [Also in Division H1] The polyphase primary winding of a transformer rectifier arrangement is arranged to produce a travelling flux, and each phase of the secondary winding, which may be a single bar B or a coil, has a rectifying element R 1 . The D.C. output is taken from end-rings EK1, ER2. The construction is similar to that of an induction motor, with an insulating cylinder IC between the windings. The arrangement may be used for supplying the heaters of electron guns.
Patent GB-657039-A (GB)
Title: Improvements connected with fire places
IPC: F24B1/188
Filed: 1949-07-28
Abstract: 657,039. Heating air. SHILTON, W. A., and OLDHAM, S. J. March 9, 1949, No. 6378. [Class 64(iii)] An open fireplace has located behind its fireback, around an air-heating conduit 3 or conduits, a mass 2 of heat-retaining material comprising sand and sal ammoniac mixed with iron fragments and fireclay or mixed with a fireclay made of ironstone. Proportions of mixtures are given. The mass may also enclose an air chamber 4 with an inlet pipe and an outlet pipe 6. A metal plate 8 with fins 9 may be provided on the front of the fireback. The air conduits may 'be controlled by valves.
Patent GB-802684-A (GB)
Title: Improvements in or relating to machine belting
Inventor: BIRT STANLEY
IPC: F16G1/04
Filed: 1955-03-04
Abstract: 802,684. Laminates; seaming. GANDY, Ltd. March 2, 1956 [March 4, 1955], No. 6388/55. Classes 42 (1) and 140. Machine belting, for example, conveyer or transmission belting, comprises a core consisting of one or more plies of textile fabric impregnated with balata and a separately made cover secured on or around said core by means of a flexible adhesive, said cover comprising a fabric base, one surface of which is coated with a flexible synthetic plastic and constitutes an external surface of the finished belt. The plastic may be a condensation or polymerization product, for example plasticized polyvinyl chloride, the flexible adhesive may be balata gum and the textile may be of cotton or other natural fibres or of rayon, nylon or polyethylene terephthalate. The cover may be wrapped entirely around the core and the seam located on the pulley side for conveyer or the reverse side -for transmission belting. This seam may be sealed by the application thereto of heat or a flexible synthetic plastic solution or strip or a combined strip of plastic and fabric. In one method of sealing the seam a wedge-shaped heat-controlled tool is placed over the seam with a polyvinyl chloride strip on top of the tool which is drawn along the seam, and a hand roller welds the strip on to the seam. In another method a strip of polyvinyl chloride is mounted on a spool and the belt and strip are fed through compression rollers with a jet of hot air directed on to them. Alternatively the cover may be attached to the upper and/or lower faces of the core, these sheets may be slit into belts and the raw edges of these belts sealed by the application thereto of chlorinated rubber or a solution of balata, the solutions being appropriately coloured, or a strip of plastic extrusion.
Patent GB-896084-A (GB)
Title: Improvements in and relating to torque recorders
Inventor: DEAN REGINALD IVOR REID
IPC: G01L5/24
Filed: 1959-02-25
Abstract: 896,084. Torque indicators. PRECISE TORQUE Ltd. Feb. 22, 1960 [Feb. 25, 1959], No. 6443/59. Class 106 (2). A torque indicating instrument comprises a housing 10, 11, 12 carrying an indicator operated by a lever 20, 21, and a torque pin 27 which projects from the housing at each of its ends so that one end can be held against rotation and the load applied to the other, the shorter arm 21 of the lever carrying a pin 23 engaging in the fork 24 of a member 25 on a sleeve 26 rigidly attached to a flange 27a of the torque pin. A spring 29 holds the pin 23 against one arm of the fork, to eliminate lostmotion. Alternatively, the sleeve 26 may bear an arm 30 having teeth 31 engaging with other teeth 32 on the lever arm 21. The long arm 20 of the lever actuates gearing which operates the pointer of the indicator. The torque pin has squared driving and driven ends 27b, 27c and a flange 27d through which it is secured to the housing. The arrangement may be applied to a torque spanner. Specifications 818,276 and 829,557 are referred to.
Patent GB-540056-A (GB)
Title: Improvements in and relating to capstans
IPC: B66D1/74
Filed: 1940-04-10
Abstract: 540,056. Capstans. CLAXTON, A. H. April 10, 1940, No. 6493. [Class 78 (v)] The drum 9 of a capstan is driven through a crown bevel wheel 18 from a shaft 14 itself rotated by bevel gearing 13, 16 from a vertical shaft 5 within a casing 7 about which the drum itself rotates. The bottom of the shaft 5 is turned by a bevel wheel 4 engaged by a wheel on a horizontal shaft driven through belt, chain or clutch. The bed-plate 12 carrying the gearing 13, 16, 17 and shaft 14 is fixedly mounted on top of the casing 7, and may be covered by plate 19. Detent pawls 10 on the drum co-operate with teeth 11 on'the base. Squared ends on the shaft 14 permit of manual operation.
Patent GB-1523252-A (GB)
Title: Method and apparatus for drying the inner wall of pipes
IPC: F26B5/14
Filed: 1977-02-17
Abstract: 1523252 Cleaning pads INDUSTRIE-UND PIPELINE-SERVICE GERHARD KOPP GmbH 17 Feb 1977 [13 March 1976] 6611/77 Heading A4F [Also in Division F4] A swab for drying the inner wall of a pipe comprises a right cylindrical plug 2 having at least an outer peripheral portion composed of finely porous absorbent foam material, e.g. a polyester, and an imperforate disc 5 of smaller diameter than the plug covering a plane rear end thereof and arranged coaxially therewith normal to the axis of the cylinder.
Patent GB-696746-A (GB)
Title: Improvements in greinacher voltage-doublers
Inventor: HOYAUX MAX
IPC: H02M7/10
Filed: 1952-03-14
Abstract: 696,746. Rectifying. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. March 14, 1952 [March 21, 1951], No. 6653/52. Class 38 (ii). A voltage multiplying and rectifying arrangement comprises two stacks of condensers C1, C2 of minimum height allowing for sufficient distance to prevent flashover between adjacent terminals which have a maximum voltage difference of 2U, and a column of rectifying elements in a common evacuated enclosure so designed that while there is adequate distance between the connections its height is substantially equal to that of the condenser columns. If each rectifier were in a separate porcelain vessel of sufficient length to prevent flashover between connections at their ends, Fig. 2 (not shown), the column would be at least twice as high as each condenser stack. To reduce its height the column comprises a number of T-shaped porcelain vessels such as E1, E2 joined by conducting rings such as M1<SP>1</SP>, M2<SP>1</SP> which form the connections for the ends of two rectifiers K1, K2 in one vessel, the intermediate connection leaving the vessel through the projecting part such as X or Y. The distances between X, Y; M1<SP>1</SP>, M2<SP>1</SP>, and X, M1<SP>1</SP> and all similar distances up the column are sufficient to avoid flash-over, but as each vessel is the height needed for one rectifier, and the number is halved, the column is higher than each condenser stack only by the depth of the connecting rings M1<SP>1</SP>, M2<SP>1</SP>.
Patent GB-159826-A (GB)
Title: Improvements in and relating to tanks and the like of bottle washing machines
IPC: B08B9/42
Filed: 1920-07-26
Abstract: 159,826. Thomson, G. C.' Aug. 7, 1919, [Convention date]. Bottles, washing.-Machines in which bottles are carried by a conveyer through various cleansing compartments are provided with a tank constructed, shaped and inclined to facilitate drainage and the separation of solids from the cleansing solution. Labels and other rubbish collecting in a compartment V in which the bottles are sprayed with hot water, are removed by a belt 67 with transverse serrated rubber scrapers 66 which carry the debris to a conveyer 74 discharging to a tank 80, any trash adhering to the conveyer 74 being removed by a cylindrical rubber roller (not shown). The liquid with the remaining solids flows to a chamber 75, heavy matter being deposited and drawn off through a pipe 95, and the liquid rising and flowing into a compartment U the floor of which is divided into two similar sumps, each with a false bottom 99 and a connecting valve 100. The first sump receives liquid from the chamber 75 and overflows into the second sump from which the suction for the sprayers is taken. The lower compartment of each sump can on closing the valve 100 be cleared of sediment. The feed to the tank is regulated by a ball-float, an overflow pipe being provided to drain off surplus water and incidentally indicating to the operator the degree of pollution of the water. The doors at each end of the tank consists of a series of hinged flaps 127, Fig. 12, mounted on spring hinges 128a and shaped to conform to the bottle outline.
Patent GB-654117-A (GB)
Title: Improvements relating to electric oscillation generators
Inventor: STILLWELL PETER FREDERIC THOMA
IPC: H04N3/233
Filed: 1948-03-05
Abstract: 654,117. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 5, 1948, No. 6831. [Class 40 (vi)] [Also in Group XL (b)] A linear saw-tooth current wave is generated by applying a charging voltage through an impedance 1 to a capacitor 24 situated in a negative feed-back path from the output circuit of valve 15 to the input circuit of a preceding valve, the capacitor being discharged at the end of the scan. In the circuit shown the discharge is effected by applying a pulse to the anode of a normally non-conducting diode 27 connected in parallel with the capacitor. The feed-back may alternatively be taken from a resistor in series with the output coil 35, Fig. 2 (not shown), in which case an additional amplifier may be required in the forward path. A keystone raster may be produced by applying the frame scanning saw-tooth wave both to terminal 2 to modulate the line scanning wave generated and to the grid of valve 15 to cancel any of the frame saw-tooth wave not filtered out by capacitor 12 (Fig. 3, not shown). Reference has been directed by the Comptroller to Specification 633,366.
Patent GB-680109-A (GB)
Title: Improved reducing valve mechanism
IPC: G05D16/06
Filed: 1949-03-14
Abstract: 680,109. Valves. LACK, S. W. March 14, 1949 [March 17, 1948 ; Sept. 17, 1948], Nos. 6869/49 and 6870/49. Class 135. A diaphragm-actuated reducing valve comprises a casing 7 having an inlet 3 and an outlet 4, a valve member 20 carried on a spindle 22 and urged by a spring 36 away from its seat 5, and a chamber 13 mounted on the casing 7 and housing a diaphragm 12 whose upper side is exposed to outlet pressure through a duct 16 and whose under side is subject to atmosphere pressure. through a port 17. The under side of the diaphragm is sealed against inlet pressure and its upper side from the atmosphere by flexible sealing members 24, each clamped between a flange and a ring nut, and secured to the spindle 22 by clamp rings 26.
Patent GB-474512-A (GB)
Title: Oscillating vane propelling and steering device for boats
IPC: B63H1/36
Filed: 1937-03-09
Abstract: 474,512. Oscillating - vane propellers. CHIBA, S. March 9, 1937, No. 6959. [Class 114] Oscillating-vane propellers are provided with a number of flexible plates. In one form, plates 9, 10, 11 and 12 are pivoted at their forward ends on pins supported in horizontal arms 3, 4 carried by a vertical stem 2 which is adapted to be oscillated by an arm 13. As the frame is oscillated to and fro these vanes take up independently curved shapes for the purpose of assisting the propulsive effort. The arms 3, 4 may themselves be slightly flexible so that they also take up a curved shape under pressure. In an alternative form, the depending stem 2 carries a single horizontal arm 3 and the pivots of the blades are formed above and below such arm so that the blades are each in duplicate. More than one such installation may be fitted to a boat.
Patent GB-577390-A (GB)
Title: Improvements relating to the production of a covering or tread surface upon a pulley, wheel, roller or the like
IPC: F16H55/36
Filed: 1944-04-17
Abstract: 577,390. Hollow rollers. FERODO, Ltd., and BILLINGTON, J. April 17, 1944, No. 7079. [Class 34 (i)] [Also in Groups VIII, XXIV and XXXIV] A roller &c. has. a covering or tread surface consisting of a number of similar rings Ac. a of any desired material, wedge-shaped in crosssection, with spacer rings d, having a wedgeshaped portion between the rings a, the rim b, c of the roller being divided into a plurality of sections drawn together by bolts e so to clamp the rings a in place. The spacer rings d which are kept apart by the rings a are provided with inner parts to receive the surfaces of the rings a and also to fit the rim b, c, which is spigoted and formed at each end with a wedge surface for the outer rings a.
Patent GB-658816-A (GB)
Title: Improvements in flying boats
Inventor: HENNIG NORMAN WESTON
IPC: B64C1/14
Filed: 1949-03-16
Abstract: 658,816. Flying boats. SHORT BROS. & HARLAND, Ltd. March 16, 1949, No. 7181. [Class 4] The hull of a flying boat incorporates a compartment having one wall constituted by a section of the planing bottom and another wall by a " viewing window " of appropriate non- metallic construction, said compartment being mounted so as to be capable of movement in relation to the hull between a waterborne position presenting in conjunction with the remainder of the hull a substantially continuous planing bottom, and a scanning position wherein the " viewing window " takes the place formerly occupied by the movable section of the planing bottom. The forward portion 10 of the planing bottom 11 forms one wall of a separate compartment of which the opposite wall 13 is formed. as a segment of a solid of revolution from a transparent material to constitute a window. The compartment is rotatable about the fore and aft axis A-B and when rotated 180 degrees from the position shown a radar scanner 18 can scan downwardly through the window 13. To enable hydrodynamic loads on the planing bottom 10 to be transferred directly to the structure the chines 15 depend on either side of the scanner compartment which is secured to the downward extensions by suitable locks. A water-tight door 17 is provided in the rear wall 16 of the recess 14 and it is stated that the device may be located at any position on the planing bottom.
Patent GB-160657-A (GB)
Title: Controlling gear for pendulum saws
IPC: B27B5/18
Filed: 1920-03-10
Abstract: 160,657. Lawrence, B. March 10, 1920. Circular - saw machines.-A pendulumsaw frame is controlled by toggle-levers, and is moved, either by means of these or by a handle attached to the frame. A frame A carrying a saw B is connected by a link F to a bell-crank D, on a fixed pivot E, and provided with a handle. The weight of the lever D tends to balance the weight of the saw frame, and may be assisted by a counterbalance H. When the levers are pushed over the dead-point, the link F comes against a stop G, and locks the frame in position. The frame may also be locked by a pin inserted through holes in the link F and in a fixed part, such as the ties supporting the pivot E.
Patent GB-410941-A (GB)
Title: A gauge for use in adjusting the cutting edge of boring tools
IPC: B23Q17/22
Filed: 1933-03-10
Abstract: 410,941. Linear dimension gauges. VOGTLANDISCHE MASCHINENFABRIK VORM. J. C. and H. DIETRICH AKT.-GES., Plauen, Vogtland, Germany. March 10, 1933, No. 7309. Convention date, March 29, 1932. [Class 106 (ii).] A gauge for use in adjusting the cutting edge of a boring tool in transverse relation to its axis of rotation comprises a precision measuring instrument disposed in a carrier independent of the machine containing the tool, said carrier being adapted to bE clamped on to a spindle carrying the cutting edge and held mechanically by means of bearing surfaces against the circumference of said spindle during the adjusting and measuring of the cutting edge. The carrier 8 has movable in it the steel pin 9, on the end of which is a small copper disc 10 contacting with the cutting edge 7 in the holder 2 displaceable in the boring spindle 1 from a remote place by means of a micrometer screw 5, the point of which engages the chainfered edge of a hole 6 in the holder 2. The disc 10 prevents damage to the edge 7 by the pin 9, the upper end of which abuts a feeler pin 11 to actuate an indicator 12 showing the adjustment given to the cutting edge 7. A spring in the indicator ensures the operative connection between the edge 7 and pins 9 and 11. In order to prevent damage to the edge 7 when the instrument is being placed on the spindle 1 the carrier 8 has pivoted on it at 15 a lever 16 having a projection 17 engaging with a cross pin 18 on the pin 9 so that pressure on the surface 20 against the action of the spring 19 causes the projection 17 to engage with the cross pin 18 and raise the pin 9 and disc 10 until the spindle 1 and edge 7 are in position. The carrier 8 is positioned on the boring spindle 1 by means of bearing surfaces 3 and 4, and is securely held in a vertical position by an arm 21 on the lever 16 held against the under side of the spindle 1 by the spring 19.
Patent GB-1043452-A (GB)
Title: Encapsulated motor compressor for a refrigeration system
IPC: H02K3/30
Filed: 1964-02-21
Abstract: 1,043,452. Refrigerating. DANFOSS A.S. Feb. 21, 1964 [Feb. 21, 1963], No. 7417/64. Heading F4H. [Also in Division H2] In a refrigeration system employing a halogenized hydrocarbon refrigerant and including a hermetically sealed motor-compressor unit, the motor insulation consists of a synthetic material which is non-reactive with respect to the refrigerant at temperatures of up to at least 155 C. and the lubricant comprises a mineral oil having a paraffin base from which those of its components which crystallize at temperatures below - 40 C. have been removed. The slot liner and slot keys of the motor may consist of terephthalic acid dimethylene cyclohexylene polyester, chlorinated polyfluoroethylene or an epoxy resin which remains non-reactive up to 180 C. while the wire insulation may comprise a pyromellitic acid/diamine combination which remains non-reactive up to 220 C. Alternatively polyethylene terephthalate or a Class C varnish coated with phenol formvar may be used as the wire insulation. The paraffin-based mineral oil is refined to remove its naphthene component and the less stable, particularly the easily oxidizing, nitrogeneous aromatics are also removed. Suitable oils for use with the refrigerants difluorodichloromethane and difluoromonochloromethane are given under their trade names. The refrigeration system also includes a drying agent such as a synthetic sodium-aluminium silicate.
Patent GB-390311-A (GB)
Title: Improvements relating to discharge tubes and other exhausted and gas-filled spaces
IPC: H01J9/395
Filed: 1932-03-12
Abstract: In introducing an alkali or alkaline earth metal into an exhausted or gas-filled space such as an electric discharge tube, a container holding an azide or other substance entirely decomposed by heat to form the metal and a gas is heated and the container is composed of or holds a substance fixing the gas, for example, one or more of the metals, zirconium, hafnium, titanium, and thorium.  In introducing barium into a thermionic valve to activate the cathode, a zirconium capsule containing barium azide is heated by high-frequency current to decompose the azide, the zirconium absorbing the nitrogen and barium distilling out of apertures in the capsule.  Several capsules may be provided so that they can be heated independently.