baber/WOPTO huggingface dataset:
Patent GB-185308-A (GB)
Title: Improvements in or relating to implements for tying knots
IPC: B65H69/04
Filed: 1921-08-05
Abstract: 185,308. White, A. E., (Taft, E. A.). Aug. 5, 1921. Knot - tying devices.-In an implement for tying a weaver's knot, Fig. 25, the threads are first guided into crossing relation, after which a rotary tying-bill co-operates with h guiding. clamping, and cutting means to form the knot. Strands A, B, manually held between projections 5, 6, Fig. 2, are passed to the left and right respectively of a separator u, into crotched members a, h, the member h being pivoted on a shaft d journaled in the member a, which constitutes the frame of the apparatus. The separator u forms part of an element which is fixed to the frame a at w, and which also comprises a clip s, a table t, and a spring detent v. The strand A, Fig. 2 is held against the convex portion of the member h by the detent v and passes down into an opening in the frame a, Fig. 4, underneath the table t. The strand B is guided by the surface z of a lever z, pivoted at 2 to the member h, Fig. 2, into an opening y in the member h, and is held from further descent in the frame a, Fig. 4, by the table t. The strands now lie as shown in Fig. 21 with regard to a split rotary tying-bill 10, 11, which is fixed within a sleeve 8 journaled in a bearing 7 on the frame a. Pivoted between the curved ends of the parts 10, 11 is a clamping and cutting member 13, actuated by a camsleeve 15, the rotation of which is limited by an arm 16, Fig. 4, which contacts with stops 17, 18 on the frame. To one end of the shaft d is fixed a handle m, and to the other end a toothed sector n, which actuates the tying-bill through gearing 20, 9. A pin l on an arm of the member h projects into a slot o in the sector n, and one arm 26 of a bell-crank lever 26, 28, Fig. 4, which is pivoted in a member 25, Figs. 21 - - 24, fixed between the members a, h. projects into a cam-slot 27 in the sector. Throughout the movement of the handle m from the position shown in full lines to that shown in dotted lines in Fig. 3, the tying-bill is rotated until a shield 23 on the sector n engages a flat on the wheel-hub 20. During this rotation the tying-bill acts on the strands as shown in Figs. 21 - - 24 to form the knot. The lever-arm 28 is moved from left to right, Figs. 21 - - 24, by the action of the cam-slot 27 and carries one limb of the strand A out of the path of the tying-bill jaws and finally coacts with the member 25 to sever it. The jaws of the tying-bill open in the position shown in Fig. 22, and close to cut and clamp the strand B during the continued rotation from the position in Fig. 23. The member h begins to turn from the position shown in full lines to that shown in dotted lines when the pin contacts with the right-hand end of the slot o, Fig. 3, just after the strand B is cut and clamped. During this movement the end 4 of the lever z is moved to the right between recesses 29, Fig. 2, in a slot j, so that the strands are gripped between the projections 5, 6 and are pulled forward, drawing the looped threads off the tying-bill on to the clamped end of the strand B and tightening the knot.
Patent GB-641147-A (GB)
Title: Improvements in or relating to electrically heated transparent panels
Inventor: GLENDINNING WILLIAM GERALD
IPC: B60S1/02
Filed: 1948-08-09
Abstract: 641,147. Electrically-heated panels. MINISTER OF SUPPLY. Aug. 9, 1948, No. 21003. [Class 39(iii)] A n electrically. heated panel, e.g. a window or windscreer heated t o prevent icing or misting, comprises an electrolyte 12 retained betweer two non-conducting sheets 10, 11, electric current, not D.C. being passed through the electrolyte 12 Electrodes 13, 14 e.g. silver sponge or foil on silver gauze, are placed at the top and bottom of the space containing the electrolyte 12, which may be a solid, e.g. a hydrophilic gel, but is preferably liquid, e.g. an aqueous solution of lithium or manganese chloride, which may contain a freezing point depresser. Connected to the electrolyte space by a pipe 21 is a chamber 22 containing a diaphragm 23 which serves two purposes. Firstly it accommodates thermal expansion of the electrolyte 12, and secondly it transmits external atmospheric pressure to the front sheet 10 of the panel from a pipe 24 open to atmosphere. A thermo-sensitive device 20 controls a variable inductance 19 in the supply circuit. In a modification two diaphragms are situated in the electrolyte space, at opposite lateral edges.
Patent GB-744385-A (GB)
Title: Improvements in or relating to hydraulic brake fluid
IPC: B21J15/10
Filed: 1953-07-29
Abstract: A hydraulic brake fluid contains a lubricant comprising a mixture of a glycol ricinoleate and a substantially water-insoluble polypropylene glycol.  The glycol ricinoleate may be propylene or butylene mono-ricinoleate, while a suitable polypropylene glycol is one having an average molecular weight between 1000 and 3000.  The brake fluid may also contain a diluent chosen from the propyl, butyl and amyl alcohols, methoxy-butanol and monoalkyl ethers of ethylene glycol or of diethylene glycol wherein the alkyl group contains no more than 4 carbon atoms.  In addition, the brake fluid may contain one or more glycols chosen from propylene, butylene and hexylene glycols.  Corrosion inhibitors such as potassium ricinoleate, borax, sodium nitrite, or diamylamine phosphate, and antioxidants such as diphenylol propane, hydroquinone or 2, 6 - di - tertiary - butyl 4 - methyl phenol may also be present in the brake fluids.  Examples of suitable brake fluid compositions are given.
Patent GB-1010350-A (GB)
Title: Clearing device for fibre ends, broken threads and the like of textile machines
IPC: D01H11/00
Filed: 1964-05-21
Abstract: 1,010,350. Cleaning textile machines. A. PAYANI and M. VEZZOLI. May 21, 1964 [June 20, 1963], No. 21062/64. Heading D1F. A hand tool for removing clouds of dust, fibre ends, broken threads &c. in a textile machine comprises a spindle 15 which has an interchangeable tip made of plastics material-e.g. nylon- and which, when rotated by trigger 20 through overdrive gearing 19 and flywheel 17, attractsby electrostatic effect-any adjacent cloud of dust &c. which is then removed from the machine by removing the tool. The overdrive gearing may comprise a pawl 18, Fig. 2 (not shown) mounted on a flywheel 17 and spring pressed against gear 11, with the trigger having a toothed sector 2 acting on shaft 10 through pinions 4, 8, and 9. Alternatively the trigger may have a rectilineal toothed rack acting on the spindle through a train of cylindrical toothed wheels constituting the overdrive gearing.
Patent GB-280860-A (GB)
IPC: B60T15/00
Filed: 1927-08-10
Abstract: 280,860. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Farmer, C. C.). Nov. 20, 1926, [Convention date]. Fluid-pressure. - In fluid pressure apparatus in which a movable abutment such as the piston 4 of a triple valve is adapted to control the flow of fluid from one side of the abutment to the other and to cut off the connection in certain positions, arrangements are provided for maintaining the flow substantially constant regardless of wear between the parts, the rate of flow being determined solely by a passage extending through only a portion of the abutment. In the apparatus shown, fluid under pressure is supplied to the underside of the piston and the chamber 6 above the piston is connected to a reservoir. When the pressure of the supply exceeds that in the reservoir, the piston seats on the gasket 7 and fluid flows through the passage 9, the circumferential groove 10 in the piston and the port 12, to the reservoir until the pressures are equalised. The rate of flow depends upon the size of the port 12 and it is thus independent of leakage past the piston ring 11 or other parts. The passage 9 may be replaced by a groove in the cylinder wall.
Patent GB-585712-A (GB)
Title: Improvements in or relating to men's under-pants
IPC: A41B9/02
Filed: 1945-08-18
Abstract: 585,712. Underpants. MORLEY, Ltd., I. & R., and TAGG, F. C. Aug. 18, 1945, No. 21115. [Class 141] To prevent the front opening of underpants from becoming distorted, they are provided with a double gusset, the outer layer having an upward extension secured to the waistband. As shown in Fig. 4, the garment consists of sections A and B with free overlapping extensions A<1>, B<1>, which are secured together at their lower ends at k, l, and an inner gusset piece C. The lower end of the outer gusset piece D, as shown in Fig. Is similar in shape to the inner gusset piece, the wings D overlying the parts C<2> and the lowest point being secured to the back seam at the point m. The extension D' overlies the parts A', B', one side edge being sewn to the garment, the other edge being secured for a short distance at the upper end by stitching. The waistband, to which the upper edge of the extension is secured, may be divided or endless. In a modification, the body part of the garment is formed from a single piece of material with a slit extending from the upper edge for the front opening and a slit, to which the gusset pieces are joined to form the legs, extending from the lower edge. In this case the gusset extension forms the front overlap.
Patent GB-403974-A (GB)
Title: Sensitization of photographic silver halide emulsions and manufacture of a sensitising dye therefor
IPC: C09B23/06
Filed: 1932-06-27
Abstract: A carbocyanione dyestuff having sensitising action on photographic silver halide emulsions is prepared by condensing tetraethylorthocarbonic ester with a quaternary ammonium compound of 2-methylbenzselenazole in the presence of piperidine and alcohol. The silver halide emulsion may be bathed with an alcohol solution of the dyestuff, or the latter may be added to the emulsion before it is cast.  The emulsion acquires a sensitivity of 500m m  to 690m m .
Patent GB-463234-A (GB)
Title: Improvements in and relating to sound recording apparatus
IPC: G11B15/28
Filed: 1936-07-30
Abstract: 463,234. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. July 30, 1936, No. 21158. Convention date, Aug. 1, 1935. [Class 38 (iii)] [Also in Groups XX and XXXV] Means for driving a flexible strip 1, such as a sound-film, at constant speed and under a constant tension comprises a pair of reels 2, 3, upon which are wound the ends of the strip and a driving drum 8, rotated by a synchronous motor 10, which is situated intermediate the reels and which drives the strip in either direction. The reels are respectively mounted on the shafts of two independent induction motors 5, 7, which exert torques tending to tension the portions of the strip between the driving drum and winding reels, the torque-speed characteristic of the motors being such that the tension is maintained constant. The rotor or stator circuits of the induction motors are provided with inductance and capacitance which produce resonance at approximately zero motor speed.
Patent GB-833803-A (GB)
Title: Compressed fluid-operated small arms weapon
IPC: F41B11/62
Filed: 1957-07-04
Abstract: 833,803. Pneumatic smallarms. KLINE, R. M., and PITCHER, K. R. July 4, 1957, No. 21172/57. Class 119 Pellets 15, Fig. 1, are conveyed from a magazine 16 of a pneumatic smallarm to the barrel by a vertically slidable member 17 having a circular pellet receiving aperture 17a and a small permanent magnet 18 for assisting in drawing the pellet into the aperture and for holding it in place. A chamber 20 for compressed fluid is connected to the barrel by a passage 19 and normally closed valve 24 having a valve stem 24a which is struck by the hammer 34 on pulling the trigger 44 for momentarily opening the valve 24 to supply fluid to propel the pellet, the trigger operating in sequence the vertical movement of the slider 17 and the hammer 34. The hammer 34, which is pivoted at 35, is urged by a spring 36 into contact with the valve stem 24a and has an abutment 43 adapted to be engaged by the end face 42a of a link 42 pivoted at 45 on the trigger 44. The trigger, which is pivoted at 46, has a rearwardly extending lug 60, Fig. 3, entering a slot 17d of the slider 17 and a leaf spring 61 urges the slider 17 upwardly against the action of a trigger spring 47 which normally causes the lug 60 to hold the slider 17 in its lowermost position for receiving a pellet from the magazine. On first pulling the trigger 44, the end face 42a of the link 42 engages the hammer abutment 43 and swings the hammer 34 rearwardly to stress the spring 36 and at the same time the leaf spring 61 moves the slider 17 to its uppermost position to bring a pellet into the barrel. On further pulling of the trigger the lug 60 moves away from the lower surface of the recess 17d, the spring 61 is further stressed and at the same time the hammer abutment 43 rides under the lower end edge of the link surface 42a to permit the hammer to spring forward and strike the valve stem 24a. The compressed fluid chamber 20 is adapted to receive a carbon dioxide cartridge 27 which is pierced by a pin 32 operated by a lever 30 pivoted on a plug 28 sealing the lower end of the chamber 20. A safety device 62, Fig. 6 (not shown) lifts the link 42 so that it does not engage the abutment 43 on pressing the trigger. The tension of the spring 36 may be adjusted so that the pressure of gas in the chamber 20 is balanced by the force exerted on the valve stem 24a by the hammer 34 in its position of rest.
Patent GB-135981-A (GB)
Title: Improvements in Carburettors.
Inventor: WHITE ALFRED ERNEST
IPC: F02M19/00
Filed: 1918-12-18
Abstract: 135,981. White, A. E., (Stewart-Warner Speedometer Corporation). Dec. 18, 1918. Spray carburettors.-The primary air is controlled by a suction-actuated valve 4 which acts in conjunction with a stationary piston 22 carried by a member 30. Two chambers are thus formed, having communication, through small holes 27, 35, with the suction chamber and the atmosphere respectively. The chamber can also be put in communication with the atmosphere by a passage 28 controlled by a hand-operated valve 31. When this valve is open, the engine suction causes the main valve to open against the action of a spring 25, and the amount of opening of the main valve can be governed by the valve 31. In a modification, the main valve 4 is open at its inner side, and there is only one chamber; this is open to the suction chamber through a small hole or leakage past the piston, and also to the atmosphere through the valve 31. In this case, when the valve 31 is open, the main valve is shut, and vice versa. Specification 139,119 is referred to.
Patent GB-927395-A (GB)
Title: Improvements relating to the transmission of electric current between conductor members of solid and liquid forms respectively
IPC: H02K31/04
Filed: 1958-07-03
Abstract: 927,395. Switch contacts. J. SAYERS. July 3, 1959 [July 3, 1958], No. 21281/58. Drawings to Specification. Class 38 (5). [Also in Groups XXXV and XXXVI] In a device which involves the transmission of current between a solid and a liquid member both made of electrically-conductive material, the solid member incorporates at its current communicating face a solid electrically-conductive barrier layer of a material which does not form an amalgam with or otherwise react physically or chemically with the liquid so that destructive erosion of the solid conductor by the liquid is avoided or reduced, and the barrier layer outer surface is either coated with a further layer of an electrically conductive material which is wetted by the liquid or is treated by a flux or etching agent to promote wetting by the liquid. The device may be an electric switch in which the liquid and two solid members are in an insulating container a change of orientation of which causes the liquid either to bridge, or otherwise, the members. In this case the liquid is mercury, the solid members and the wetting layer are of copper, and the barrier layer is of nickel. Alternatively, the device may be a L.V. high-current switchgear having one or more pairs of fixed contacts, each comprising parallel plates having mercury in the gap between them, and closure of which contacts is effected by respective movable contacts which enter into the gaps. In this embodiment the flux may be zinc chloride and the etching agent may be nitric acid. Specifications 927,394, 927,396 and 927,397 are referred to.
Patent GB-910436-A (GB)
Title: Improved hospital beds
IPC: A61G7/015
Filed: 1961-06-13
Abstract: 910,436. Invalids' beds. MENTIS, K. I. June 13, 1961 [Aug. 26, 1960], No. 21282/61. Classes 52 (2) and 52 (3). A hospital bed comprises an outer supporting frame 1 mounted on pairs of legs 2 independently adjustable in height at the head 4 and foot 3 of this frame, an inner mattress frame 10 in two sections independently connected to the outer frame 1 with the foot section 11 adapted to be tilted from the horizontal, an adjustably inclined headboard 18 movable along the outer frame and a commode hung below the inner frame. The section 11 can be held in any desired position by means of a clamp 12 movable in a guide 13 on the frame 1. The legs 2 may be extended or retracted by means of cables 6 passing over pulleys 7 on a rotatable cranked shaft 8. Screws 9 lock the legs in adjusted position. The headboard 18 may be adjusted by means of cables 20 passing over pulleys 21 on a cranked shaft 22. An adjustably inclined footboard 14 which may be used as a footrest is movable along the section 11 of the inner frame. Retractable or removable arm rests 25 are supported on the headboard 19. The arm rests are adapted to support an adjustably positioned tray. Blanket cradles 17 are provided which are adjustable in position on and removable from the supporting frame. A cabinet provides storage for a thermometer under antiseptic conditions and for the documentary records of the patient. The cabinet is provided with hooks so that it may be hung from the foot of the bed. The commode is supported on a carrier 29 pivotally mounted on the inner frame 10 so that it will remain horizontal when the bed is tilted. A rigid storage shelf 33 is provided under the bed.
Patent GB-439695-A (GB)
Title: Improvements in altitude controls for internal combustion engines
IPC: F02D9/00
Filed: 1934-07-20
Abstract: 439,695. Fluid-pressure servomotorcontrol systems. RUBBRA, A. A., Red Roofs, Carlton Road, Derby. July 20, 1934, No. 21303. [Class 7 (vi)] An altitude-con trolled servomotor device for adjusting the fuel-regulating means of an in ternal - combustior engine has an over riding pilot's control whereby the fuel regulating means may be adjustec without interfering with the automatic regulation. The servomotor pistor e<2>, which is guidec by a tail piece f sliding in a socket f<1>, is connected by a floating lever g, link i, and lever i<1>, i<2> to the fuel-regulating means. The pilot's control is connected by a lever h<1>, h2 and link h to the other end of the floating lever g, and intermediate its ends the lever g is coupled by a link j to a movable ported sleeve d which forms the seat for a piston control valve actuated by an aneroid device b. Movement of the piston valve caused by the expansion or contraction of the aneroid connects one side of the piston to pressure and the other side to exhaust, and consequential movement of the piston moves the seat sleeve to give a follow-up action and moves the fuel-regulating means to make an appropriate adjustment of the fuel supply.
Patent GB-1466580-A (GB)
Title: Heat exchange apparatus
IPC: F28D11/00
Filed: 1974-05-14
Abstract: 1466580 Centrifugal compressors M ESKELI 14 May 1974 [17 May 1973] 21349/74 Heading F1C [Also in Division F4] In a rotary heat exchanger used for heating or cooling purposes and comprising a rotor assembly 31 disposed within an evacuated casing 30 and provided with outwardly and inwardly extending flow passages for a first fluid, e.g. air, halogenated hydrocarbon or carbon dioxide, within the rotor, said first fluid is compressed as it flows through said outwardly extending passages, with the heat of compression being taken up by a heat removal heat exchanger 33, said first fluid thereafter passing through a series of nozzles or openings 32 into said inwardly extending passages wherein it undergoes expansion, deceleration and cooling as it flows inwardly before either being discharged from the rotor or being recirculated from the expansion to the compression side of the rotor interior through openings 39. Heat is added to the first fluid during and after expansion thereof via a second heat exchanger 35. Vanes 44 and 45 are provided in the rotor passages to ensure that the first fluid rotates with the rotor 31. The rotor assembly includes a shaft 42 having passages for the supply and discharge of second and third fluids, e.g. liquids, to and from the heat-exchangers 33 and 35 respectively each of which comprises finned tubing supported by the rotor walls.
Patent GB-1157856-A (GB)
Title: Improvements in or relating to the Production of Textile Materials
IPC: D04H3/14
Filed: 1967-05-08
Abstract: 1,157,856. Laminates. JARMUFEJLESZTESI INTEZET. 8 May, 1967 [10 May, 1966], No. 21373/67. Heading B5N. [Also in Division D1] A net-forming apparatus comprises a pair of press rollers 15 and 16, a spindle 8 extending upstream of the entry to the rollers and a rotary spool carrier 2 mounted on a pivotally drivable sleeve 7 carried on the spindle 8. The spool carrier has a plurality of thread spool carrying spindles 3 mounted thereon. There are also (a) a thread regulator 5 having a plurality of holes 6 therein corresponding to the desired spacing of the threads in the net to be produced, (b) thread guide eyelets 9 arranged on an endless belt 11 arranged to make reciprocating movements and (c) a thread coupling head 17 mounted for movement towards or away from the rollers 15, 16. A carrier material (18), (19), e.g. a foil of thermoplastic material, can be applied to at least one side of the net, e.g. at the rollers (15), 16, see Fig. 3, not shown. The coupling head 17 can apply adhesive or be constructed as a radiant heat-welding head so as to effect bonding of the threads. The rollers (15), 16 can also be heated to bond the threads or dry the adhesive. The threads can be made of filaments of thermoplastic material or mixed threads of thermoplastic material and natural fibres.
Patent GB-1125341-A (GB)
Title: Heat exchange plate
Inventor: RASKIN WALTER
IPC: F28D1/06
Filed: 1966-05-13
Abstract: 1,125,341. Heating and cooling liquids in bulk; heat exchange elements. DEAN PRODUCTS Inc. 13 May, 1966, No. 21469/66. Heading F4S. A resilient heat exchange plate to be tensioned about a container 10 comprises a pair of superimposed metal sheets 2, 3, the outer one, 3, of which is embossed as at 4 to form a plurality of parallel longitudinal ducts which are terminated near the ends 8, 9 of the plate by transverse ducts acting as headers. Inlet and outlet connections (5, 6), (Fig. 2, not shown), are made to two extreme longitudinal ducts. The plate, on being placed in position around the container, is then clamped tightly around the latter by means of a toggle-latch 11. On release of the latch the plate springs loose, thereby facilitating easy removal of the same. The strap-like exchange plate may be preshaped to conform to the contours of various containers and can be applied equally well to the inside of a container, in which case the latch 11 is used to expand the plate.