baber/WOPTO huggingface dataset:
Patent GB-1274241-A (GB)
Title: Apparatus for measuring the refraction index of a medium along a light path
IPC: G01N21/41
Filed: 1969-05-13
Abstract: 1,274,241. Measuring refractive index. AGA A.B. May 13, 1969 [June 7, 1968], No.24333/69. Heading G1A. Apparatus for measuring refractive index along a light path comprises first and second emitters, E and E<SP>1</SP>, the respective light beams R & B from which differ in both colour and modulation frequency, first and second generators GE1 and GE2 producing the two modulating frequencies f 1  and f 2 , and a switch SW arranged so that in its first position I generators GE1 and GE2 are connected to emitters E and E<SP>1</SP> respectively, while in its second position II generator GE1 modulates emitter E<SP>1</SP> and generator GE2 modulates emitter E, there being a receiver RE located at the other end of the light path and containing a phase detector PD responsive to the difference in phase between the two light beams. In the embodiment shown the switch SW is actuated periodically at a frequency of about 10 Hz, while the two modulating frequencies f 1 , f 2  are of the order of 30 MHz. In the first switch position the two light beams, which start from the emitters in-phase, arrive at a photomultiplier PM out of phase by an amount (# 1  - # 2 ). The photo-multiplier generates a signal of this phase and having a frequency equal to the frequency difference (f 1  - f 2 ), and this component is separated by a filter F which applies it to a phase detector PD. Thus, in the first switch position the phase detector gives an output proportional to (# 1  - # 2 ), while in the second switch position it gives an output proportional to (# 1 ' - # 2 '), the phase difference at the photo-multiplier when the modulating frequencies are switched. The resulting output from the phase detector is a squarewave RW of amplitude (# 1  - # 2 ) - (# 1 ' - # 2 ' ), and this signal, which is indicative of the mean refractive index along the light path, is displayed on an integrating meter MI. A null device DL for altering the optical path length of one of the beams may be incorporated into either the transmitter TR or the receiver, Fig. 2 (not shown), to be adjusted until a zero reading is obtained on the meter, the position of the null device thus giving a measure of (# 1  - # 2 ) - (# 1 ' - # 2 '). In a further embodiment Fig. 3 (not shown) any phase difference between the two beams as they leave the transmitter is detected on a meter (MI<SP>1</SP>) and can be compensated for by a further null device (DL2).
Patent GB-1069090-A (GB)
Title: Release-coated carrier webs and method of using them
Inventor: SPENCER MILLARD CARLETON
IPC: B29C41/24
Filed: 1965-06-09
Abstract: The invention comprises a carrier web, having on its surface a dry and hard layer comprising release coating composition containing dispersed therein a finely divided blowing agent capable of suddenly releasing gas when heated to its critical temperature.  The carrier web may comprise a flexible base having on a surface thereof a dry and hard layer of coating composition which is only weakly adherent to an organic film or sheet material formed thereon, the coating composition having dispersed therein a predetermined quantity of finely divided substance which upon reaching a critical temperature suddenly releases gas.  The carrier web may have a release coating thereon and on said release coating and adherent thereto a perforated film of a film forming material which may also have a layer of expanded plastic adhered thereto.  The coated web may be produced by spreading a release coating composition in liquid from containing a blowing agent in dispersed from upon the surface of the web, and drying and hardening the coating at a temperature below that at which the blowing agent is activated.  A perforated film may be prepared by spreading a layer of powdered resin dispersed in a liquid having latent plasticizing power, or a layer of resin material in unconsolidated condition e.g. a plastisol, upon the dry and hard release coating, heating the release coating above the critical temperature of the blowing agent contained therein to cause evolution of gas which penetrates through the layer of resin to form perforations therein, further heating the layer to consolidate the resin to form a tough film without closing the perforations and thereafter the film may be stripped from the carrier web.  Prior to stripping the film a layer of sponge rubber or expanded plastic may be firmly affixed to the exposed surface of the consolidated film, a web of cloth may then be applied to the expanded plastic, and the release coated web stripped from the composite web of consolidated film and expanded plastic.  The plastic material may be vinyl polymers or copolymers e.g. polyvinyl chloride, acrylic polymers, vinylidene polymers and polyurethane resins.  Examples of blowing agents are given.  The carrier web may be paper of clay and casein-coated paper.  The compositions may be applied by an air knife coating device.
Patent GB-770778-A (GB)
Title: Improvements relating to the doors or covers of horizontal vessels
IPC: B01J3/03
Filed: 1954-08-23
Abstract: 770,778. Door and gate operating-appliances; hinges and pivots. LEEDS & BRADFORD BOILER CO., Ltd., and PICKARD, H. M. H. Aug. 23, 1955 [Aug. 23, 1954], No. 24472/54. Class 65 (1). A cover 13 of a horizontal vessel is suspended from one end of a counter-balanced beam 14 which is rotatably and rockably supported, the cover being capable of rotating about a vertical axis while remaining vertically suspended during rocking of the beam. The beam 14 pivots on a knife edge 18 which is rotatable about a vertical axis intermediate the diameter of the vessel by means of a ball-race 21 mounted on a pillar 22 secured to the vessel body. Adjustable stops 25 limit the pivoting movement of the beam and hook-like members 28 can engage a flange 23 to prevent over-balancing. A bracket 37, adjustably and rotatably secured to the cover by a bolt 38 carries a pivot pin 43 which passes through an eye of a bolt 45 adjustably secured to one end of the beam. The bolt 45 is also adjustable longitudinally of the beam by means of bolts 53. The other end of the beam carries an adjustable counterweight 16. In removing the cover the beam 14 rotates a little about the bearing 21 to move the cover bodily a few inches away from the vessel 10 until a stop 30 formed on the flange 23 engages an angle-bracket 29 on the beam 14 when the door is lifted vertically by the beam pivoting on the knife edge. The beam then rotates further about the bearing 21 until the cover 13 is clear of the mouth of the vessel with part of it situated in the space between the vessel 10 and a wall 12.
Patent GB-668209-A (GB)
Title: Apparatus for the manufacture of fuel briquettes and the like
IPC: B30B11/22
Filed: 1949-09-23
Abstract: 668,209. Extruding fuel briquettes &c. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. Sept. 23, 1949. [Sept. 23. 1948] No. 24501/49. Class 87(ii). A presser 3, rotating clockwise, forces fuel slimes, e.g. the slimes of coal and lignite, through tubular extrusion dies 5, fixed in a stationary casing 1. The presser is shaped like a ratchet-wheel, having three teeth 3<SP>1</SP>. The slime is held against rotary movement by six abutments or gates 13 which are slidably disposed in the casing. The gates are pushed in and out by the ratchet-teeth, the outward movement of the gates being effected by levers 14 which are pivoted at 15 and inter-related in pairs by bars 16. Thus, as shown, the gates A. C. E are being pushed out by the teeth and the diametrically-opposite gates B, D, F are being pushed in by the levers. To each ratchet-tooth is fixed a plate 20, and this plate together with its tooth and a gate defines a diminishing space in which material is being compressed and from which it is being extruded. The teeth push the material into an annular space 22, whence it emerges through dies 5. The abutments have grooves 21 to enable the pressed-out water to escape The extruded material is cut off by a device 6 fixed on the rotating shaft 2 which carries the presser. In a modification Fig. 5, (not shown) the extruded material is broken off by inclined plates fixed to the dies 5. The material is fed down a shoot 11 and is stirred by members 7 carried by arms 8 fixed to a sleeve 9 rotated by shaft 2 through reversing gears 10, the stirring members being rotated contrariwise to the presser. In a modification (not illustrated) the presser may be stationary and the casing rotary.
Patent GB-424977-A (GB)
Title: Improvements in or relating to detergents
IPC: C11D9/00
Filed: 1933-09-04
Abstract: A detergent composition consists of a water-soluble soap, a non-saponifiable oil, water and an emulsifying agent consisting of an hydroxyethylamine derivative of a higher organic acid. Paraffin oil or petroleum jelly is mixed with trihydroxy-ethylamine palmitate or stearate and heated to 90 DEG  C. with stirring to form a homogeneous mixture.  A solution of soft soap is added together with dried powdered curd soap.  After cooling the product is kneaded and cut into bars and used as a toilet soap.  Perfumes, abrasives, colours or fillers may be added before cooling.  Trihydroxy ethylamine stearate may be replaced by the corresponding oleic or ricinoleic derivatives of mono, di- or tri-hydroxy-ethylamine or a mixture thereof.  The Provisional Specification describes also the use of glycol stearate or a mixture of glycol stearates as emulsifying-agent.
Patent GB-777731-A (GB)
Title: Improvements in interlocking mechanisms for electric switches
Inventor: BILL RONALD ARCHIE
IPC: H01H9/10
Filed: 1954-08-24
Abstract: 777,731. Switch covers. BILL SWITCHGEAR. Ltd. Aug. 15, 1955 [Aug. 24, 1954], No. 24545/54. Class 38(5) In a switch of the kind in which the cover cannot be removed when the switch is "on", an operating. lever 1 projects through an aperture in a detachable cover 2 and is associated with a forwardly directed catch piece which overlaps part of the cover when in the "on" position. As shown a catch piece 6a forms part of a lousely mounted plate 6 moved by the lever. A legend-bearing plate 5 is also loosely mounted to move with the lever and the legend ("off"/"on") is read through apertures in the cover and plate 6. A further embodiment (shown by dotted lines) comprises a lip lb, integral with the lever, which overlaps the cover in the "on" position.
Patent GB-1062248-A (GB)
Title: Automatic wear take-up devices for vehicle brakes
IPC: F16D65/14
Filed: 1965-06-10
Abstract: 1,062,248. Brake adjusting devices. RECHERCHES ETUDES PRODUCTION R.E.P. June 10, 1965 [June 10, 1964; July 9, 1964], No. 24629/65. Heading F2E. An automatic adjusting device for taking up wear in disc brakes comprises split metal friction rings 14 which grip a cylindrical surface 13 within the piston 6 of the hydraulic actuation and which provide a stop for the piston when the brake is released. When the piston travel exceeds a predetermined amount J the rings are moved along the surface 13 by means of a washer 10 in the piston. The piston 6 and brake pad 3 are returned by a spring 11 which acts between the washer 10 and a sleeve 12, one end of which bears on the rings 14, and the return motion of the piston is stopped when it abuts a spacer sleeve 15, one end of which is in contact with the rings 14. In another embodiment (Fig. 8) the rings 14 grip the surface 13 through an intermediate sleeve (19) and a helical groove (20) is provided in the rod to improve lubrication. In another embodiment (Figs. 5 and 6), the piston is returned by a frusto-conical plate spring (17) which bears directly against the rings 14.
Patent GB-705957-A (GB)
Title: Improvements relating to the manufacture of electrically heated utensils
IPC: A47J27/21
Filed: 1951-10-23
Abstract: 705,957. Electric heating. SANDERSON, R. B., and HULME, M. R. Oct. 20, 1952 [Oct. 23, 1951 ; June 16, 1952], Nos. 24679/51 and 15043/53. Class 39 (3) A method of making an electric heating container, e.g. a kettle 10, comprises the following steps :- (a) forming a hole 103 in the wall of the kettle prior to completion of the bottom 11 of the kettle ; (b) attaching to the kettle an annular member 12 having radially inwardly and outwardly directed portions 123, 122 respectively, and a screw-threaded axially outwardly extending part 121, the portion 122 abutting the margin of the hole (or a washer 13 adjacent thereto) and the part 121 extending through the hole 103 ; (c) passing the electric heating element through the hole 103 until a part 152 thereon abuts the portion 123 ; (d) screwing a collar 19 on the part 121 to clamp the element 15 in position ; and (e) completing the bottom 11 of the kettle. A locking ring 14 may be interposed between the wall of the kettle and the collar 19, and a rubber washer 17 is positioned between the portion 123 of member 12 and the base 152 of element 15. Keys 124 on the part 121 engage slots 153 in the base 152 to locate the element 15 correctly in the kettle, an insulating terminal block 18 interengaging with the base 152 and being clamped thereto by a shoulder 191 on the collar 19. The block 18 and base 152 may be integrally formed, and the member 12 may be brazed, fused or welded to the kettle wall. The bottom 11 may be partly formed prior to the above method being carried out, but have a hole therein to permit the member 12 to be secured to the kettle, the hole being subsequently closed.
Patent GB-153251-A (GB)
Title: Improvements in magneto-electric generators for use in connection with internal combustion engines
IPC: H02K21/10
Filed: 1919-08-05
Abstract: 153,251. Godfree, C. P. Aug. 5, 1919. Magneto-electric machines. - In magnetos having a condenser rotatable with the armature a, the condenser c is mounted between extensions of the side cheeks a<1>, a<2> of the armature and formed so that one plate is earthed and the other is connected to a segment c1' c2 insulated by strips d1, d2 to form a collector ring. The condenser c is also connected to the primary winding cf the armature so that brushes e, e<1> collect the primary current and are connected to the contact breaker.
Patent GB-1197066-A (GB)
Title: Magnetic Positioning Device
Inventor: SAWYER BRUCE ALDEN
IPC: H02K41/03
Filed: 1967-06-20
Abstract: 1,197,066. Engraving. B. A. SAWYER. 20 June, 1967, No. 24707/69. Divided out of 1,197,065. Heading B6J. [Also in Divisions B3, F2, G3, H1 and H2] An electromagnetically operated positioning device which includes a head member that is moved over the surface of a plate member constructed as disclosed in the parent Specification. In operation only one of the parallel sets of electromagnets in the head member is energized to give movement along one axis.
Patent GB-1315103-A (GB)
Title: Positive-displacement hydraulic pump
IPC: F04C2/344
Filed: 1971-04-19
Abstract: 1315103 Positive-displacement pumps SUNDSTRAND CORP 19 April 1971 [26 March 1970] 24709/71 Heading F1F Hydraulic pumping-apparatus includes an inlet 14 containing a centrifugal-pump impeller 18, and a positive-displacement pump 20 comprising a two-lobed cam-ring 60, a rotor 40, outwardlysliding blades 28 and two sets of inlet and outlet ports 30, 32, 34, 36 and 42, 44, 46, 48 in end plates 58 so that liquid is pumped not only in crescent-shaped cavities 24, 26 but also in slots 38 for the blades. The liquid issuing from the outlet ports 34, 36 flows to an outlet 16 through a filter 50. A proportion of the liquid is cleansed by the filter and flows through passages 52 and the inlet ports 42, 44 to be pumped by way of the ports 46, 48 through bearings 62 and splines 64 coupling the rotor to a shaft 22 so as to lubricate these parts. The liquid escapes from the bearings and splines into the inlet 14 through passages 66. The inner surface of the filter is washed by the outgoing liquid. The cam-ring may comprise a single lobe instead of two.
Patent GB-960267-A (GB)
Title: Film adhesives and their use
Inventor: GARNISH EDWARD WILLIAM
IPC: C09J7/10
Filed: 1961-07-07
Abstract: A self-supporting adhesive film comprises a substrate consisting of a monolayer comprising a polyvinyl acetal resin (e.g. polyvinyl formal, acetal or butyral) and a phenol/formaldehyde resin or a film of a polyvinyl acetyl resin coated on both sides with a film of phenol/formaldehyde resin which is coated on one or both sides with a layer of a tacky substance which retains its tackiness during storage at room temperature but which cures to a hard, insoluble infusible resin under conditions of temperature and pressure which effect a cure of the substrate.  Specified tacky substances are solutions of a phenol/formaldehyde resin and a polyvinyl acetyl resin in a non-volatile plasticizer or solvent, e.g. trixylenyl phosphate, dibutyl phthalate, polyethylene glycols of molecular weight of 150-700 or polypropylene glycols of molecular weight 400-2500. Fillers, dyes, pigments and antioxidants may also be included in the film adhesive and volatile solvents, e.g. lower alcohols, may be added to the tacky substance to facilitate spreading provided they are removed by evaporation when spreading is completed.  The adhesive film of the invention may be used to unite impervious adherents such as metal by locating the adhesive film there-between and subjecting the assembly to temperature and pressure sufficient to cure both the adhesive film and its tacky coating.  Specification 765,466 is referred to.
Patent GB-736265-A (GB)
Title: Improvements in or relating to oil filters
IPC: B01D27/00
Filed: 1953-09-08
Abstract: Oxidation and polymerization of heat-bodied oils of the drying or semi-drying class is inhibited by the addition of one per cent of hydroquinone or other hydroxylated aromatics containing at least two hydroxyl groups which are directly connected to the aromatic nuclei. Oils specified are linseed oil, dehydrated castor oil, soya bean oil and fish oil.ALSO:An oil filter element has a coating consisting of a stabilized heat-bodied oil of the class of drying or semi-drying oils.  An element of paper, cloth, cotton waste or mineral wool is impregnated with uncured phenol formaldehyde resin, formed into the desired shape, heated to render the resin insoluble and is then coated with linseed oil, dehydrated castor oil, soya bean oil or fish oil.  The oil is bodied by heating without oxidation, and polymerization is inhibited by the addition of one per cent of hydroquinone or other hydroxylated aromatics containing at least two hydroxyl groups directly connected to the aromatic nuclei. The coating may be applied internally at 150 DEG  F. by centrifugal means or by a spray gun, or the oil may be dissolved in oleum spirits and the element dipped therein and the solvent afterwards evaporated.
Patent GB-396946-A (GB)
Title: Improvements in the manufacture of racquet strings and the like
IPC: A63B51/02
Filed: 1932-09-06
Abstract: 396,946. String. KNIFE, R., 157, Clandon Close, Ewell, Surrey.-(Senior, C. H.; 337, Wardell Road, Marrickville, Sydney, Australia). Sept. 6, 1932, No. 24805. [Class 109.] A string for a tennis racket, lacrosse bat, or like is obtained by twisting a single strip of animal skin while it is held under tension. The string is smoothed by rubbing it while it is damp and is tensioned.
Patent GB-587506-A (GB)
Title: Improvements in or relating to the support of wall slabs above a window
IPC: E04B2/94
Filed: 1944-12-11
Abstract: 587,506. Supporting wall slabs above windows. LIVETT, R. A. H., and CARTWRIGHT, J. O. Dec. 11, 1944, No. 24838. [Classes 20 (iii) and 20 (iv) In an external wall formed of reinforced concrete slabs secured to a steel frame, each slab 34 directly above a window 31 has a projection 35 which rests on a horizontal steel joist 33 forming part of the frame. As shown, the frame also comprises uprights 16 and horizontal L and T members 18 and 20, the member 20 supporting the joist 33 and having secured thereto by a fixing block 32, a pressed steel lining 30 for the window, positioned by the slabs 34. The wall may be of the kind described in Specification 587,084, the weight of all the slabs above the window being carried by the joist 33, and a steel lining 40 for another window may be provided.
Patent GB-726635-A (GB)
Title: Improvements in resilient couplings for shafts
IPC: F16D3/56
Filed: 1953-09-09
Abstract: 726,635. Flexible couplings. SOC. ANON, A. SAURER. Sept 9, 1953 [Nov. 13, 1952], No. 24932/53. Class 80 (2). A flexible coupling between shaft ends 2, 13 comprises two or more rollers 6 carried by a flange 1 on shaft 2 and each bearing on a transversely-arranged multi-leaf spring 21, the springs being held at both ends in flared recesses of members 14 secured in a casing 12 rigid with the shaft 13. Packing 28 is arranged between the flange 1 and a cover 25 secured to the casing 12. Where two rollers and springs are provided, as shown, the springs 21 are parallel to each other and come into contact at maximum bending, so as to support each other. Where three or more rollers and springs are provided, the springs form a triangle or polygon and contact with a cylindrical projection on one shaft end at maximum bending. The rollers may be mounted on eccentric pins which may be turned, after assembly, to pre-load the springs.
Patent GB-737241-A (GB)
Title: Improvements in or relating to book-keeping, calculating and like machines
IPC: B41J11/24
Filed: 1953-09-09
Abstract: 737,241. Calculating-apparatus. AKTIE-BOLAGET ADDO. Sept. 9, 1953 [June 11, 1953], No. 24981/53. Class 106 (1). A calculating-machine has a paper carriage driven through a screw- and nut mechanism by reversible power means which when operating in one sense are connected also to the main driving mechanism of the machine, but when operating in the other sense are automatically disconnected therefrom. A reversible electric motor 8 drives a screwthreaded shaft 22 through a flexible coupling 16, pulleys 19, 21 and a clutch comprising driving dogs 26 which co-operate with a lug 27 of a pawl 28 pivoted on a driven disc 30. A nut 25 mounted on the carriage 2 is engaged on the shaft 22. The clutch is controlled by a lever 36 having a tooth 35 which co-operates with a recess in the disc 30. The lever 36 is controlled by a bifurcated lever 39 carrying a roller 43 which runs on a bar 4 of the carriage and is engaged by adjustable stops 5, and also by a cam 47 on the main shaft which is driven by the motor 8 through a one-way coupling 10, 11 and gears 13, 15. Towards the end-of a cycle of the mainshaft, the cam 47 temporarily disengages the lever 36 through a lever 49 and so engages the drive to the shaft 22 to tabulate the carriage. A switch 54 controlled by the lever 39 and in parallel with the initiating switch, holds the motor circuit closed after the completion of the cycle of the mainshaft. When the next columnar position is reached, a stop 5 rocks the lever 39 so as to release the lever 36. The tooth 35 then locks the driven-disc 30 and is engaged by a lug 33 of the pawl 28 which is thus rocked to remove the lug 27 from the path of the driving lugs 26. The lever 39 also opens the switch 54 to stop the motor. A starting key may then be;depressed to initiate a further cycle of the mainshaft, at the end of which the carriage again tabulates. When the carriage reaches its end position, an abutment 6 operates a reversing switch 52 in the motor circuit. The motor then returns the carriage until a further abutment 7 restores the switch 52, after which the carriage is stopped by the first stop 5. During the return movement, the coupling 10, 11 to the mainshaft is disengaged. Moreover, the stops 5 merely raise the roller .43 idly in guide slots 42 in the bifurcated end of the lever 39 against a spring 44. Different speed governors may be arranged to be effective during the tabulating and return movements respectively. The reversing switch 52 may be replaced by a reversing gear.