baber/WOPTO huggingface dataset:
Patent GB-949030-A (GB)
Title: Dynamoelectric machine
IPC: H02K5/04
Filed: 1962-12-19
Abstract: 949,030. Making dynamo-electric machines. GENERAL MOTORS CORPORATION. Dec. 19, 1962 [Feb. 16, 1962], No. 47914/62. Heading B3A. [Also in Division H2] Low-penetration spot welds 34 join the two parts 10, 12 of a dynamo-electric machine casing, so that should subsequent access to the motor or stator be necessary the parts can be separated by removing the welds.
Patent GB-1325468-A (GB)
Title: Extrusion process
IPC: B29C48/09
Filed: 1970-10-13
Abstract: 1325468 Extruding fibre reinforced tubes; laminates HERCULES Inc 13 Oct 1970 [16 Oct 1969] 48597/70 Headings B5A and B5N A synthetic polymer cylindrical tube 6, containing reinforcing fibres, is extruded through a die passage 5 wherein there is simultaneously im. parted to the polymer stream, fibre orientating velocity components in (a) the longitudinal extrusion direction and having a radial gradient (at right-angles to the die passage defining surfaces) and (b), a circumferential velocity component having gradients both in the radial and longitudinal directions. A fibre orientation in the tube 6 may be produced between substantially axial and substantially circumferential. The extruded tube 6 may be slit to produce a sheet or film, e.g. having reinforcing fibres at rightangles to its longitudinal axis, to which a thin unoriented film can be laminated. In the example, polypropylene, dry blended with # inch chopped glass roving, is delivered by a screw 1 through a heated funnel to an extrusion die comprising outer and inner parts 7, 8, either or both of which are rotated by variable speed electric motors to produce the circumferential component, and defining an annular outlet passage 5 which diverges to produce the longitudinal gradient of the circumferential velocity component but maintains a constant crosssection to maintain constant the longitudinal velocity component. Rotation of the inner and outer die parts 7, 8, in opposite directions, imparts opposed helical orientation to the inner and outer extrudate surfaces. The passage 5 may alternatively be convergent to the die axis. The thickness of a divergent passage may be constant to produce a longitudinally decreasing velocity gradient. The polymer may also comprise polyethylene, polyvinyl chloride, polyethylene terephthalate, or nylon, or thermosetting plastics extruded as a solution or prepolymer prior to completion of its cure. The reinforcing fibre may also comprise boron, grapite, or organic fibres.
Patent GB-1532667-A (GB)
Title: Internal cooling of capstan drums
IPC: B21C1/14
Filed: 1976-11-24
Abstract: 1532667 Capstan drawing apparatus ERNST KOCH & CO 24 Nov 1976 [27 Nov 1975] 48881/76 Heading B3P A capstan drum 1 of drawing apparatus, e.g. for wire drawing, with internal cooling comprises a rotary drum and a stationary liner or stator 3 within the drum, the stator having axially extending ribs 12 joined to circumferentially extending ribs 14, 15. The ribs 12, 14, 15 extend closely towards an inner wall surface 16 of the drum leaving a small gap Sp between the drum wall and stator so as to form a series of chambers 13 into which coolant is fed via bores I, I<SP>1</SP>, III, IV and conduits 17.
Patent GB-1223244-A (GB)
Title: Steam-heated drying cylinder
IPC: D21F5/10
Filed: 1969-10-06
Abstract: 1,223,244. Rollers. ESCHER WYSS G.m.b.H. 6 Oct., 1969 [5 Oct., 1968], No. 49057/69. Heading F2U. The outer shell of a steam heated roller has a central thick portion 11 jointed by tapered portions 9, 10 to thin end portions at which the end members 7, 7<SP>1</SP> of condensate discharge tubes 6, 6<SP>1</SP> are located. Steam is supplied through annular ducts 5, 5<SP>1</SP> in trunnions 4, 4<SP>1</SP>. In an alternative embodiment, Fig. 3 (not shown), the ends of the outer shell taper towards a thin central section at which a single condensate discharge member is located.
Patent GB-1535760-A (GB)
Title: Changeover contact units
IPC: H01H50/56
Filed: 1975-11-28
Abstract: 1535760 Contact arrangements BUNKER RAMO CORP 28 Nov 1975 [20 Jan 1975] 49072/75 Addition to 1446558 Heading H1N A changeover contact arrangement for a miniature relay comprises a first 4 and a second 3 fixed contact co-operating with a movable double spring blade contact which comprises two spring blades clamped at their one ends 5 and each comprising in their relaxed state two straight portions 41, 43 and 42, 44 either side of a bend 40, the blades being bent symmetrically in opposite directions. The ratio of the lengths of the two straight portions is approximately two to one, and in the relaxed state the first portions 41, 43 adjacent the clamp are at an angle 2# of 18 degrees to one another, the second portions 42, 44 being bent at an angle α of 3 degrees to the first portions. The spring blades are inserted in the relay and engaged and tensioned by an actuator 13 such that their second portions 42, 44 lie straight and parallel, the arms being restrained from moving to their relaxed states respectively by the actuator and a fixed contact. The two blades are separated at their free ends by a distance A, to reduce chattering. The effect of chattering is also reduced by slitting the spring blades to form tongues which are not symmetrically clamped, or are of different widths or thicknesses so that they do not vibrate at the same frequency, Fig. 3, not shown. The ends 8, 9 of the contact springs on the other side of the clamp 7 from the contacts are non-springy, preferably of brass, so that they can be easily bent to form terminals.
Patent GB-1034888-A (GB)
Title: Improvements relating to filter elements for filter presses
IPC: B01D25/21
Filed: 1963-12-13
Abstract: 1,034,888. Filter presses. G. DIEFENBACH. Dec. 13, 1963 [Dec. 28,1962], No. 49255/63. Addition to 895,453. Heading B1D. A filter element for filter presses comprises a perforated corrugated plate a1 with a sheet of filtering material on either side, the plate a1 being freely housed in a peripheral frame a2 and movable in a direction normal to the plane of the frame. The peripheral frame is sandwiched between a pair of wider frames a3 and a4. The corrugated plate may be fixed to a rim a5 around its edges.
Patent GB-1208429-A (GB)
Title: Improvements in agricultural machines
IPC: A01D43/10
Filed: 1967-10-31
Abstract: 1,208,429. Hay conditioners; mowers. SPERRY RAND CORP. 31 Oct., 1967 [30 Jan., 1967], No. 49327/67. Heading A1F. A combined hay-harvesting and hayconditioning machine has separate adjustment units for adjusting the height of a header above the ground and adjusting the angle of the header relative to the ground. The machine 10 comprises a draw frame 14 one end of which is hitched to a tractor the other end journalling a rockshaft 21, a wheel arm 22 rigidly attached to rockshaft 21 and carrying a support wheel 23, and a header 15 that is pivotally mounted on rockshaft 21. The header 15 comprises a subframe resiliently supported by springs 92, 93 for supporting crop treating elements and consists of a pair of side panels 42, a guide plate 44 and a crop engaging bar 45. A reel 48 between the side panels 42 is described in Specification 1,034,616. A pair of conditioner rolls 60, 61 are journalled in the header subframe behind the reel 48. A cutter bar 68 is mounted at the forward end of the header and is driven by means described in Specification 1,034,616. The height of the header relative to the ground is determined by positioning the pin 115 on the cutter bar, in one of three notches 112 provided on the skid shoe 100. Corresponding support is provided at the rear of the shoe, holes 111 co-operating with fastener (108) (Fig. 2, not shown) that clamps the skid shoe to the cutter bar. Angular adjustment of the header is provided by rotating lever 89, rigidly attached to the rockshaft 21, with the extension of a piston in hydraulic actuator 85 one end of which is pivotally mounted on bracket 87 fixed to draw frame 14. A pin 95 fixed to each wheel arm extends through a slot 96 in each link 94 to provide a lost-motion connection. Within the limits of slots 96, the actuator 85 pivots the rockshaft 21 to move draw frame 14 vertically upwards. At the end of the slot movement the actuator pivots the header upward. Telescopic stay 91 limits the angle of the header relative to the frame 14 and is provided with three locations 120 corresponding to the three adjustments of the skid shoe.
Patent GB-1355916-A (GB)
Title: Vortex de-aerator
IPC: B01D19/00
Filed: 1972-10-26
Abstract: 1355916 Vortex separator S A ARMSTRONG Ltd 26 Oct 1972 [6 Dec 1971] 49429/72 Heading B2P A vortex type de-aerator for separating gas from a flowing liquid comprises a hollow body 10 of circular interior cross-section having a substantially vertical axis, a perforate tube 18 extending axially the full length of the body and communicating at its upper end with a gas outlet 19, a perforate partition 20 mounted within the body and defining therein upper and lower compartments 22, 23, a tangential inlet 24 and a tangential outlet 26 to the lower compartment axially spaced from each other with the inlet 24 disposed adjacent to the partition 20, a skirt 28 depending from the partition and surrounding the tube 18; and an annular baffle plate 29 connected to the lower end of the skirt at a level below the inlet 24 and above the outlet 26. The tube 18 stands in a recess in a removable closure 14 which is threaded in a skirt portion 12 at the lower end of the body and which is provided with an axial passage 16 closed by a removable plug 17. A frustoconical screen 30 extends between the skirt 12 and the wall of the body 10 above the outlet 26 to define an annular space 31. The partition 20, skirt 28 and baffle 29 serve to stabilize the vortex and facilitate separation of the gas which is removed through the perforated tube 18 and the outlet 19. Any heavily aerated liquid arriving in the upper compartment 22 after incomplete separation by vortex action in the lower compartment 23 will slowly move radially outwards and encourage further gas separation. The deaerated liquid will then pass back through the perforations 21 in the baffle 29 back into the lower compartment 23. Any solids present in the liquid will impinge on the interior surface of the screen 30 and collect in the well 15. Periodic cleaning of the screen and removal of the tube 18 are facilitated by removal of the closure 14. In the event of a blowdown, the plug 17 need only be removed.
Patent GB-1470504-A (GB)
Title: Articles for electrical use
IPC: H02G15/068
Filed: 1974-03-19
Abstract: 1470504 Recoverable articles RAYCHEM Ltd 19 March 1974 [20 March 1973] 49725/76 Divided out of 1470501 Heading C3P [Also in Division H2] Recoverable articles comprise a polymeric material having dispersed therein a particulate filler selected from (a) compounds having a perovskite type crystal structure; (b) compounds having a spinel crystal structure other than γ-Fe 2 O 3  and spinel itself; (c) compounds having an inverse spinel crystal structure; (d) compounds having a mixed spinel crystal structure; (e) dichalcogenides of transition metals and tin; (f) AgI, Prussian blue, Rochelle salt and other alkali metal tartrates, compounds of formula XH 2 YO 4  where X is K, Rb or Cs and Y is P or As, ammonium fluoroberyllate, thiourea, ammonium sulphate and triglycine sulphate; and (g) Si 3 N 4 ; the compositions containing at least 10% of the particulate filler based on the weight of polymeric material, and having a γ-value of at least 1À5 at least at some direct current stress between 0À01 kV/mm. and 10 kV/mm. The compositions may also contain finely divided electrically conductive fillers and/or silicon carbide, and may be made into mechanically or heat recoverable tubes and sleeves.
Patent GB-498938-A (GB)
Abstract: 498,938. Multiplying - apparatus. WARD, F. C. Sept. 29, 1937, No. 26406. [Class 106 (i)] A multiplying - device - - comprises a plurality of sets of multiplication tables, marked on movable elements, each table having an individual multiplier and each set being independently operable so that when desired tables are selected there can be displayed in line the multiples formed by the multipliers of the selected tables and a common multiplicand ranging between 10 and 99. In one form, Fig. 1, the tables are marked on both sides of strips 1, 2 hinged at one end to a base. The base carries a line of multiplicands 3 ranging from 10-99. In another form, the tables are carried on drums rotatable in a frame having the multiplicands marked on one side thereof and being provided with a cursor. In a further modification, Fig. 4, the tables are marked on tapes 4, one tape carrying all the sets of tables for one denomination. The tapes are moved beneath apertures in a casing by wheels 7 connected to rollers 5 by gearing 9. The particular set of tables in use is shown by an indicator 10 and the particular multiple in that set by an indicator 11. The indicators 10, 11 are driven by the gearing 9, the indicator 10 moving one step for each complete rotation of the indicator 11. The indicators 10, 11 may be dispensed with and the two factors and the product all printed on the tape 4.
Patent GB-1093416-A (GB)
Title: Process for the production of amylose films
IPC: C08B30/20
Filed: 1964-12-08
Abstract: 1,093,416. Amylose films. A. E. STALEY MANUFACTURING CO. Dec. 8, 1964 [Jan. 6, 1964], No. 49958/64. Heading B5B. Amylose films are made by dissolving amylose in water at a temperature of at least 130 C., casting a film of the amylose solution on to a support to form a dimensionally-stable gel, the support having a temperature at least 10 C. less than the gelation temperature of the amylose solution, and drying the gel under restraint at a temperature above the gelation temperature of the amylose solution. The term " amylose " includes separated amylose, high-amylose starches containing at least 50% amylose, and mixtures of separated amylose and separated amylopectin containing at least 50% amylose. The casting surface, suitably coated with a release agent such as lecithin, polydimethyl siloxane or talc, may be a fixed flat surface or a revolving drum or moving belt. In one embodiment, an aqueous solution containing 4-20% by weight of amylose and a plasticizing amount of a polyhydric alcohol (many specified) is cast on to a lecithin-coated support having a temperature of 0-40 C., and the resulting gel is dried at 75-120 C. in an atmosphere in which a substantial relative humidity is maintained. The amylose may be dissolved in water under such conditions, e.g. heating an aqueous slurry under pressure at 140-170 C. in a continuous heat exchanger, that a 10% solution of the amylose forms a discontinuous non-cohesive layer on a lecithincoated support maintained at 96 C. The amylose gel may be dried on the casting support, or may be removed from the support and dried while the edges of the gel are placed under restraint, and the remainder of the gel is supported by a gas. This may be done by placing the gel film across the hoop, expansion of air confined within the hoop tending to orient the film. Partial orientation may also be obtained by casting the amylose solution on a 3-part belt composed of a central portion and two peripheral edges. After the amylose gels, the central portion separates from the gel, so that the gel is supported by the edges, before it passes into a drying chamber where hot air serves to place the film under tension and to orient it.
Patent GB-1088648-A (GB)
Title: Metal film resistors
Inventor: BERRY ROBERT WALTER
IPC: H01B1/00
Filed: 1964-12-10
Abstract: 1,088,648. Resistors. WESTERN ELECTRIC CO. Inc. Dec. 10, 1964 [Dec. 12, 1963], No. 50252/64. Heading H1S. A first embodiment, Figs. 4, 5, of a low-value film resistor is made by cleaning a substrate 11, e.g. of glass, and applying a layer 12 of anodizable resistive film-forming metal, e.g. tantalum, by cathodic sputtering or vacuum evaporation. A layer 13 of high electrical conductivity is applied by similar techniques to two spaced regions of the layer 12, this layer being of anodizable metal, e.g. aluminium. Two terminals 14, e.g. of gold or palladium, are deposited on the layer 13 and a pattern is photo-engraved on the layers 12, 13, 14 to remove certain portions in accordance with the desired resistance value. The final value of the resistor is determined by anodizing the layers 12, 13 to form a film 15. In an alternative embodiment (Figs. 9, 10, not shown) the layer 13 is applied directly to the substrate 11.
Patent GB-1323250-A (GB)
Title: Anti-theft device
IPC: B60R25/021
Filed: 1971-10-28
Abstract: 1323250 Anti-theft devices SOC D'EXPLOITATION DES BREVETS NEIMAN 28 Oct 1971 [30 Nov 1970] 50280/71 Heading E2A In a key-operated anti-theft device for motor vehicles including a bolt and a locking mechanism and wherein movement of the bolt to a locking position cannot be completed until the key has been removed from the locking mechanism, the locking mechanism includes a housing 3 containing channels 4, 5, a sleeve 6 rotatably mounted in the housing and secured against axial displacement, the sleeve containing a cylinder 7 which is rotatable therewith and axially displaceable therein, the cylinder containing plate tumblers 8, the sleeve having apertures to enable the plate tumblers to engage the channels in the housing, a key slot 15, a recess 24 in the sleeve inwardly of the entrance to the key slot, the recess housing one or more displacement members 25, 26, a cam 34 rigidly connected with the cylinder 7 and a spring 32 arranged to oppose axial displacement of the cylinder, whereby, when a key is inserted in the key slot, the displacement member or members are moved transversely relative to the key slot, thereby displacing the cylinder and cam, the plate tumblers are positioned to release the sleeve and cylinder from the housing, so that the cylinder, sleeve and cam can then be rotated by means of the key, the cam on rotation moves the bolt 43 to an unlocking position, and on rotation of the cylinder, sleeve and cam in the reverse direction a position is reached, in which, upon withdrawal of the key from the locking mechanism, the cylinder, cam and displacement member or members are moved back to their initial position by means of the spring,: the cam permitting the bolt to complete its movement to the locking position. As shown, the bolt carries a pin 46 which is biassed by a spring 47 and in the locking position, is held retracted by engagement with a side surface of the cam; however, when the bolt 43 is withdrawn from the locking position by the cam, the pin is moved beyond the edge surface of the cam by the spring 47 and by engagement with the edge surface of the cam prevents movement of the bolt to the locking position. The axial movement of the cylinder when the key is withdrawn and which takes place under the bias of the spring 32 moves the cam axially so that it becomes disposed beyond the end of the pin 46, the bolt being then moved to the locking position by a spring 48. The housing is provided with two lugs 36, which in the locking condition, engage recesses 38 in the cam, and the cam is provided with a stop 40 which, in the locking position, engages a recess 41 in the housing; thus, in the locking condition, the cam cannot rotate relative to the housing but when it is axially displaced by the entry of the key the lugs and the stop are freed from their recesses and the cam can then be rotated. The members 25, 26 may be rollers, balls or of wedge form.
Patent GB-1394203-A (GB)
Title: Apparatus for controlling a drilling operation from a floating installation
IPC: E21B19/09
Filed: 1972-11-02
Abstract: 1394203 Measuring drilling speed INSTITUT FRANCAIS DU PETROLE 2 Nov 1972 [8 Nov 1971] 50617/72 Heading G I N The rate at which a drill carried on a floating platform penetrates the earth is measured by a system comprising a transducer which detects the instantaneous position of the drill relative to the platform, a circuit for averaging the transducer signal to remove short term variations due to the effects of waves or swell on the platform, and a circuit which gives the change of the average position, i.e. the rate of drilling. The drill pipe is supported from the platform by a conventional system of pivoted arms and pulley wheels, Fig. 1 (not shown), one of the pivot points carrying a rotary potentiometer 20, Fig 3. As the platform moves relative to the drill pipe due to waves the potentiometer rotates to and fro, giving an output signal I, Fig. 2. The average value of the voltage-on the potentiometer tap is shown at M, and this changes as the drill proceeds into the earth. In Fig. 3 the potentiometer signal is amplified at 25, averaged by filter 27, and differentiated at 30 to give a rate of drilling output for display or recording at 33. Optional display and recording of the relevant signals is also possible at 31, 33. The circuitry shown dotted compares the average drill position with pre-set values supplied on lines 37, 38; if the position is too close to the limit of travel of the drill suspension system of (Fig. 1), a warning is given so that the operator can reset the suspension for further drilling. The suspension may be set automatically if the suspension winch is connected to the warning circuitry. Although in Fig. 3 the control potentiometer delivers a voltage, it may be used to frequency modulate an oscillator with appropriate changes to filter 27. Reference is also made to an alternative arrangement in which the transducer is a potentiometer whose slider is subjected to a rectilinear movement in accordance with the movement of the drill.
Patent GB-1114757-A (GB)
Title: Power transmission systems for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: B60K17/34
Filed: 1966-11-11
Abstract: 1,114,757. Transmission arrangement. VAUXHALL MOTORS Ltd. 20 March, 1967 [11 Nov., 1966], No. 50713/66. Heading B7H. [Also in Divisions F1 and F2] A motor vehicle transmission arrangement comprises an engine (not shown) loaded adjacent a final drive unit 10 for a pair of road wheels, change-speed gearing 22 located between an engine driven clutch 12 and an interaxle differential 36 having a first output shaft 46 connected through transfer gearing 50, 52 to unit 10, and a second output shaft 48 connected to drive a second pair of road wheels through a second final drive unit. The output from the gearing 22 is via the main shaft 28, but may alternatively be via the layshaft. The gearing 22 is of the constant-mesh type with double-ended synchromesh or dog-tooth clutches 30 and an idler gear 32 of a reverse gear train. The transfer gearing may be replaced by a chain or toothed belt drive.
Patent GB-1087067-A (GB)
Title: Method of separating a layer of gold from a base of high melting transition metal element or non-ferrous alloy thereof
Inventor: BAZILEVSKY VICTOR MAMERTOVICH
IPC: C22B13/00
Filed: 1964-12-14
Abstract: A method for removing gold from a base of high melting point transition metal element or a non-ferrous alloy thereof (e.g. W or Mo) comprises treating the material with a solution of a halogen and a halide (e.g. aqueous Kl + I2).  The gold may be recovered by cementation, electrolysis or by distilling off the dissolving agent (e.g. I2).  In this last case the iodine may be dissolved in potassium iodide solution to form a new treatment solution.
Patent GB-1088907-A (GB)
Title: Preparation of synthetic lubricating oil
Inventor: ANTONSEN DONALD HANS
Filed: 1964-12-14
Abstract: Lubricating oil is obtained by polymerizing a C6-C14 normal alpha olefin at 0-50 DEG  C. in the presence of (a) aluminium dialkyl chloride, aluminium alkyl dichloride or aluminium alkyl sesquichloride; (b) titanium tetrachloride; and (c) an oxirane <FORM:1088907/C4-C5/1> in which R is hydrogen or a C1-C20 alkyl group or a C1-C20 alkyl methyl ether; the process of the main Specification 961,009 is disclaimed. A solvent as specified in the main Specification may be used and the product may be hydrogenated.