baber/WOPTO huggingface dataset:
Patent GB-272299-A (GB)
Title: Improvements in and relating to electromagnetic brakes and couplings for transmitting mechanical power
IPC: H02K49/02
Filed: 1926-03-12
Abstract: 272,299. British Thomson-Houston Co., Ltd., and Young, A. P. March 12, 1926. Electric and magnetic. - An electromagnetic clutch or brake device without frictional contact between its members consists of a permanent magnet ring with internal or external poles on one shaft co-operating with a squirrel cage rotor on the other shaft, means being optionally provided for axial adjustment of the rotor relatively to the magnet to control the transmitted torque. Fig. 1 shows a clutch applicable to a motor vehicle drive in which the driving shaft 2 drives a non-magnetic casing 1 which carries a number of spaced permanent magnets 4 co-operating with a squirrel cage rotor 6 on the driven shaft 5. The casing 1 runs on a ball bearing 10 on the fixed outer casing 7 and supports the bearing 11 for the shaft 5. By means of levers operated through a bore in the shaft 5, or by other means, the rotor may be moved axially with regard to the magnets to transmit a desired torque and a laminated magnetic armature 12 may be provided to move with the rotor and form a flux shunt. When the clutch transmits large powers, it may be cooled by air which is passed through or over it, or it may be enclosed in a fluid-tight casing immersed in a cooling medium. Alternatively, the conductors may be tubes through which the cooling medium flows, or if the squirrel cage surround the magnets, some of its annular core laminµ may extend beyond the others to form cooling fins. The magnet poles may be on the inner or outer surface of the ring. For use as a brake, one member, e.g. the field member, is locked and the braking is controlled by moving the rotor into or out of the field. Specifications 26324/08 and 28130/08 are referred to.
Patent GB-789151-A (GB)
Title: Improvements in and relating to cigar and cigarette holders
IPC: A24F13/06
Filed: 1956-03-06
Abstract: 789,151. Cigar and cigarette holders. BARNETT, J. M. March 6, 1956, No. 6951/56. Class 130. Filtering granules 4 are confined between a disc b, having a cross-shaped aperture 9, and internal lips 5 defining with a partition 6 laterally tapering passages leading to mouthpiece orifices 4. The disc b is cemented against a shoulder 8 and may be additionally forced into position over pointed teeth 10. The holder a is of plastic.
Patent GB-302092-A (GB)
Title: Improvements in bathing wraps, capes, and like articles for personal wear
IPC: A41D7/00
Filed: 1928-03-07
Abstract: 302,092. Isherwood Bros. of Radcliffe, Ltd., and Isherwood, A. J. March 7, 1928. Capes; body coverings.-Bathing wraps, capes, and the like are woven with elastic warp threads 3 placed at positions where it is desired that the garment shall " shirr up," the weaving taking place while the threads are in tension. The lengths of material for a garment may be cut off adjacent the elastic threads and turned over to secure them in place. A tying cord 4 may be provided.
Patent GB-911029-A (GB)
Title: Improvements relating to ball studs
IPC: F16C11/06
Filed: 1961-02-27
Abstract: 911,029. Making ball joints; forging and rolling. GENERAL MOTORS CORPORATION. Feb. 27, 1961 [March 3, 1960], No. 7060/61. Classes 83 (2) and 83 (4). In a method of making a stud for a ball joint, a shank with a hollow ball end is formed by the chipless working of a hollow cup-like or cylindrical blank. A hollow ball 34 and a groove 36 are formed at the end of an extruded cup-like blank 22 by spinning or pressing the cup portion so that the grain flow 32 is maintained substantially parallel to the ball stud profile. The ball may be closed by welding, brazing or solder. ing and may contain a lubricant or coolant. In the former case a small hole is provided to allow seepage to take place. In a modification an extruded or deep drawn cup-shaped blank is plastically worked to form a hollow ball 48, groove 52 and a reduced shank 46 with a threaded portion 50. In a further modification a tubular blank 56 is formed at one end into a hollow shank 66 with a threaded portion 70. A generating device is used to size the form and impart a surface to the shank and ball. A top and bottom die 76, 74 having cone-shaped cavities 80, 78 are mounted on a press for finishing the ball, and the stud is rotated during each stroke of the press. In a modification back up rolls 90, 92, a powered swingable bearing member 96 having a number of hardened steel balls 104, 106 and a stud-holding rotatable mandrel 88 are used for finishing the ball and groove The balls 104, 106 and the rolls 92, 90 rotate under constant pressure about the driven ball portion 86. The shank 84 is finished by rotating it during each stroke of a press between dies 108, 110 having " V "-shaped working faces 112, 114 mounted on the press.
Patent GB-765153-A (GB)
Title: Process of treating textile sheet material and a needle for use in said process
IPC: D04H1/46
Filed: 1955-03-10
Abstract: 765,153. Finishing fabrics; seaming; felt. DU PONT DE NEMOURS & CO., E. I. March 10, 1955 [March 10, 1954; May 4, 1954], No. 7072/55. Classes 42 (1) and 42 (2). Textile sheet material is punched with unbarbed needles each of which has in its profile a notch or protuberance such that a line tangential to it and parallel to the longitudinal axis of the needle will not change in direction by more than 90 degrees when moved in either direction around the notch or protuberance in such a way as to remain always tangential thereto. The process is used on non-woven batts or on woven or knitted fabrics in the production of felted or fulled effects. The material may be wholly or mainly composed of non-feltable fibres, whether natural or synthetic. In the case of a batt, the latter preferably contains a proportion of retractable or shrinkable fibres which can be shrunk before or after needling, e.g. by means of heat or a swelling agent, so as to produce a feltlike product. In the case of woven or knitted fabrics, preferably at least 1000 penetrations per square inch are applied until migration of fibres into adjacent or crossing yarns is obtained. The fabric may contain natural, regenerated or sythetic fibres or blends thereof. Fabrics may be teasled or brushed before or after needling. Where the fibres permit shrinking, the fabric may be shrunk before or after needling. Needles according to the invention may be made from standard barbed needles, the barbs being removed by etching in acid and/or by abrasive action so as to give a notch as shown in Fig. 2a. Preferably the angle α, subtended by lines drawn from the upper and lower edges of the notch to the deepest point therein, is at least 90 degrees. Other shapes of notch or protuberance on the needle are disclosed, of which two are shown in Figs. 5 and 16. The crosssectional shape of the needle blade may be triangular, round, flat, elliptical, rectangular or hexagonal. The needle may be made of metal or plastic. In one example, a woven fabric having nylon weft and polyethylene terephthalate warp is teasled on one side, and is then needled from the teasled side so that irregularities of weave are removed and a fulled effect is produced. The process of the invention may be applied to a narrow edging of a fabric to prevent unravelling, or may be used to create fabric designs. It may also be applied to joined or interwoven ends of fabrics, e.g. to produce an endless belt. Specification 712,950, [Group IV (a)], is referred to.
Patent GB-1190353-A (GB)
Title: Reinforced Luggage Handle and Mounting Member
Inventor: LAUTIN LEON
IPC: A45C13/26
Filed: 1969-02-10
Abstract: 1,190,353. Luggage handles, L. LAUTIN. 10 Feb., 1969, No. 7123/69. Heading A4G. A handle of e.g. moulded polypropylene comprises a grip 19 and pendant end parts 21 in which is embedded a continuous metal loop 18, part 17 of which forms a pivot shaft within a groove of a mounting member 13 secured to case 12 by screws 16 entering internal bosses 15, by nuts or screws engaging a metal saddle or a staple, both embedded in the mounting member. The latter may be of metal. The body of the handle may have stub shafts to pivoting in the ends of the mounting member.
Patent GB-763631-A (GB)
Title: Improvements in or relating to hydraulic presses
Inventor: GOWING BERTRAM THOMAS
IPC: B30B15/16
Filed: 1954-03-11
Abstract: 763,631. Extruding presses. FIELDING & PLATT, Ltd. March 8, 1955 [March 11, 1954], No. 7165/54. Class 83 (4). [Also in Group XXIX] An hydraulic press for extruding tubes or for other metal - working operations comprises a ram 8 having a portion operating in a cylinder 7 to which pressure is supplied for the working stroke, and a portion operating in a cylinder 6 which portion has a greater area than that in cylinder 7 so that the ram is retracted when liquid is supplied to both cylinders. To effect a power stroke the cylinder 6 is opened to exhaust, whereupon the full pressure of the supply is instantaneously effective to move the ram to the left. An auxiliary ram 17 is adjustably mounted on a tail-rod 10 of the ram 8 and operates in a cylinder 18. An approach stroke is effected by supplying liquid to all three cylinders. The pressure liquid is supplied by a hydro-pneumatic accumulator to the cylinders via a valve block 23 and pipes 25 which have telescopic glanded connections with the cylinders to permit slight movement of the press at the end of the stroke of the ram. Specification 749,571 is referred to.
Patent GB-402145-A (GB)
Title: Improved method of supporting or slinging steam drums or other metal drums
IPC: F22B37/20
Filed: 1933-03-10
Abstract: 402.145. Supporting steam boilers. INTERNATIONAL COMBUSTION, Ltd. and GUMMER, R. H., Aldwych House, Aldwych, London. March 10, 1933, No. 7202/32. [Class 123 (ii).] In steam-drum &c. supports comprising sling rods C connected with ribs B integralwiththedrum, a ball and socket or equivalent joint O<1>-Q is interposed in the suspension of the drum. The ribs are circumferentially slotted to receive supporting plates F, the socket Q of the joint bearing against a plate Q<1> and beams I which are riveted to the plates F. A similar joint O-P may be interposed between the upper end of the sling rod and its supporting structure G.
Patent GB-1139601-A (GB)
Title: Lift scales
IPC: G01G19/14
Filed: 1966-02-18
Abstract: 1,139,601. Platform elevators. DORROLIVER Inc. 18 Feb., 1966 [18 Feb., 1965], No. 7202/66. Heading B8H. [Also in Division G1] A weighing and lifting apparatus comprises a load cell 76 which co-operates with a weigh platform 20 to produce on an indicator 80 an indication of the weight of a load supported on the platform, the platform being so mounted in a pit 12 on a tubular ram 46 which is movable under fluid pressure with a cylinder 42 that the height of the platform 20 with respect to the floor of the pit is adjustable by suitably adjusting the amount of hydraulic fluid within the cylinder 42. The load cell which may be pneumatic, hydraulic or electrical is connected to the weight indicator 80 by conduits 82, 84 and is supported, in one embodiment, on the bottom end wall 48 of the tubular ram 46 and arranged so as to be acted upon by the lower closed end 75 of a tubular member 70 which depends from and is fixed to the platform 20. A device 58 comprising pivotally interconnected rods 60, 62 prevents rotation of the platform 20 and stabilizing structures 24, 25 respectively comprising link members 92 and a ball bearing arrangement link the platform 20 to the ram 46 so that the load cell 76 does not sense horizontal forces but senses only vertical forces due to a load on the platform 20. The platform 20 comprises I-beams (66), (Fig. 3, not shown) on which are mounted horizontal rollers 56 for supporting the load, at least some of the rollers 56 being rotatably drivable. A conduit (38), (Fig. 1, not shown) connects the cylinder 42 with hydraulic fluid equipment at one side of the pit 12. In an alternative embodiment, the load cell, instead of being mounted below the depending member, is mounted at the top of the depending member (124), (Fig. 6, not shown) and immediately below a spacer assembly (140) and a plate (136) of the platform and is arranged to bear on a ram spider assembly (150) fixed to the ram (46), the stabilizing structure, corresponding to structure 24 of the previous embodiment, being a vertically flexible, horizontally rigid plate (166), (Fig. 5, not shown).
Patent GB-1012953-A (GB)
Title: Apparatus for controlling the ratio of two fluid pressures in accordance with the setting of a member
Inventor: SUTTON ARTHUR EDWIN
IPC: G05D11/035
Filed: 1961-02-28
Abstract: 1,012,953. Fluid-pressure servomotor systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb 16, 1962 [Feb 28, 1961], No. 7246/61. Heading G3P. The subject-matter of this Specification is identical with that described in Specification 1,012,952 but the claims are concerned with apparatus for controlling the ratio of two fluid pressures in accordance with the setting of a member.
Patent GB-349980-A (GB)
Title: Improvements in or relating to the manufacture or treatment of textile or other material
IPC: D06M11/05
Filed: 1930-03-05
Abstract: The lustre of materials made of or containing cellulose esters or ethers, which have been wholly or partly delustred owing to the action of hot aqueous media, is increased or rendered more uniform by subjecting the materials to the action of steam superheated about 20 DEG  C. or more.  The steam is preferably at super atmospheric pressure and the degree of superheat may vary up to 100 DEG  C.  In examples-(1) yarns or fabrics made of or containing cellulose acetate which have been delustred by boiling soap solution have their lustre restored by steaming for half an hour under a pressure of 20 lbs. per square inch above atmospheric and at a temperature of 175-185 DEG C.; a fabric having a real silk weft and cellulose acetate warp, reduced in lustre by boiling soap solution, is formed into a series of loops and introduced into a steam chamber fitted with an oil jacket and steam supply with superheater where it is treated for 1 hour under a pressure of 10 lbs. per square inch above atmospheric and at a temperature of 180 DEG  C.; (3) a garment made from fabric composed of cellulose acetate yarns which has been delustred in places, is placed, dry, on a suitable form and introduced into a steaming apparatus where it is treated for 20 minutes at 150 DEG  C., the pressure being 25 lbs. per square inch above atmospheric.
Patent GB-476985-A (GB)
Title: Process and apparatus for the electrolysis of photographic fixing baths
IPC: C25C1/20
Filed: 1937-03-13
Abstract: 476,985. Electrolytic recovery of silver from photographic fixing baths; batteries. DOFFIN, H. G. March 13, 1937, No. 7415. [Classes 41 and 53] For a bath of given general composition as regards thiosulphate and acidifying and other ingredients the voltage employed is maintained constant at a value below and very near to that at which blackening of the silver deposit and cloudiness of the bath are produced when the silver content of the bath is depleted. The critical value, which may be determined for a silver content of 0À1 gm. per litre, lies between 0À25 and 0À5 volt. for usual baths. The bath may contain tanning agents such as alums. Its thiosulphate content is estimated by a densimeter and its acidity by a colorimetric outfit. The anode may be of porous carbon having a surface of 1/3 sq. dcm. per decigramme of silver to be deposited per day ; such an anode is spontaneously depolarized and produces neither excess voltage nor oxidizing or sulphurizing products. The cathode surface may be 1 sq. dcm. for such a rate of deposition. The electrodes may be placed in the fixing bath, recovery being effected during and between fixing operations. The anode consists of carbon rods mounted in a head-piece of antimonial lead and spaced by rubber bands. The cathode consists of plates of non-oxidizable steel threaded at the top on a stirrup and at the bottom on a wire and spaced by washers of synthetic resin. Current may be supplied by an alternating current transformer through dry rectifiers connected in push-pull, the primary being adjustable to regulate the output voltage within 1/100 volt. The current may alternatively be supplied by a battery comprising a tubular iron electrode 7 surrounded by an insulating sleeve 8 open at the base and a carbon electrode 6 depolarized by air with a ten per cent solution of sodium chloride as electrolyte. The container 9 is tall to permit collection of precipitated iron hydrate. The E.M.F. is about 0À45 volt; the supply to the recovery bath is regulated by a rheostat 10.
Patent GB-671504-A (GB)
Title: Sawtooth-current generator
IPC: H03K4/28
Filed: 1950-03-24
Abstract: 671,504. Saw-tooth generating circuits. PHILCO CORPORATION. March 24, 1950 [March 25, 1949], No. 7447/50. Class 40 (vi). A saw-tooth current generator comprises a valve 11 having an inductance 16 in its cathode 'circuit, a voltage step-up device 15 coupled to the inductance which charges positively a capacitor 22 connected to the grid, and a further valve 10 for discharging the capacitor, having its anode connected to the control grid of the first valve and its cathode connected through an R.C. time constant network 25, 26 to an output of the step-up device. In the circuit shown, at the commencement of the forward stroke current begins to flow in the first valve producing a voltage at the tap C on a potentiometer which charges the capacitor 22 as shown in Fig. 3. The voltage across this capacitor is applied in regenerative sense to the grid of valve 11 and by suitably adjusting potentiometer 11 the capacitor will charge linearly or with an upward or drooping curve. The voltage at point b charges capacitor 25 but due to the values of the capacitor and of resistor 26, at a slower rate so that the potential of the cathode of the diode will decrease with respect to the anode. When this decrease is sufficient the diode conducts, substantially preventing any further rise of grid voltage. The increase in current through the valve accordingly ceases and due to the regenerative action of the cathode circuit the valve is rapidly cut off. The inductor commences to oscillate, carrying the diode cathode to a high negative potential e and returning it to a potential f equal to the value to which the capacitor 22 has discharged. At this point the diode ceases to conduct but the diode cathode potential continues to rise rapidly until point g, when the valve 11 begins to conduct and the forward stroke commences. The time constant of components 21, 22 may be equal to that of the deflection coils. The potentiometer 19 adjusts the linearity and for a linear output is preferably set to produce an upward curving wave across capacitor 22 and resistors 12 and 26 adjust the amplitude and frequency. Synchronizing pulses may be applied to a valve 37 to drive the cathode of the diode negative and so render the diode conducting to initiate the fly-back. The anode potential of the synchronizing valve rises in saw-tooth fashion during the forward stroke and the cathode is biased so that the valve is ineffective during the major part of the forward stroke to avoid noise pulses initiating the fly-back. In order to reduce the cathodeheater voltage of valve 11 part of the cathode inductance may be placed in the anode circuit.
Patent GB-125250-A (GB)
Title: Improvements relating to Artificial Limbs.
Inventor: ADAMS SIDNEY JAMES
IPC: A61F2/64
Filed: 1918-05-03
Abstract: 125,250. Adams, S. J., and Adams, R. H., (trading as Adams, R.). May 3, 1918. Limbs, artificial.- A fluid check of the self-contained type described in Specifications 19263/07, 1 2 9 7 9 / 0 8 , and 7551/14, [Class 65 (1), Door and gate operating appliances &c.], is fitted within an artificial leg so as to provide the necessary support when the knee is bent beyond a certain angle. The check cylinder d containing a viscous fluid is pivoted at e within the leg b. The piston-rod l is provided with a slotted head m mounted upon a pin n fixed to the thigh part a at a distance from the knee-joint c. The slotted head allows of the usual angular movements in walking without bringing the cylinder d into play. Instead of the slotted head, the pivotal connexion of the cylinder at e may be slotted, or the cylinder may slide in a housing pivoted at e, for the same purpose. The pin e is supported in the usual metal side straps g and also by a tube h. The pin n is secured by a pair of plates o screwed to the side of the slot in the thigh part, and anchored in the pivot pin c. The capstan head adjusting-device p, for adjusting the flow of the fluid, is analogous to that described in Specification 7551/14, and is housed within the head m.
Patent GB-688668-A (GB)
Title: Improvements in or relating to a hydraulic drive, such as may particularly be applied to die and press moulding machines
IPC: B29C45/82
Filed: 1951-04-02
Abstract: 688,668. Injection moulding machines. SAUTER, H., and HAHN, W., (trading as HAHN & KOLB (Firm of)). April 2, 1951 [April 12, 1950], No. 7521/51. Class 87 (ii). [Also in Group XXIX] In a hydraulic drive for machines having a hydraulic driving network 13, 11, 14, 12, 8 common to a pair, or a plurality of pairs, of cooperating cylinders 1, 21 and pistons 2, 22, one (21) of each pair of cylinders and its piston (22) is connected with a pressure accumulator 20 and with the common driving network in such a manner that, in one stroke direction, the piston 22 is relieved from the driving network and is driven by the accumulator and, in the other stroke direction, the piston 22 is driven directly from the driving network, the working movement of the piston 22 being unable to exert any influence over the pressure upon the remaining piston(s) 2. Fluid in a container 10 is drawn through a pipe 13 by a low pressure pump 11 and delivered into a pipe 14 connected to both a non-return valve 18 and a high pressure pump, 12 ; the valve 18 controls a pipe 8 leading to both a valve 5, and a non-return valve 19 in a pipe 15 leading to a valve 25. The valve 5 controls the supply to the piston 2 to which is connected the movable mould half 41 of a die moulding machine, which half carries a piston 39 controlling the movement of the core and an ejector piston 42, these pistons 39, 42, being connected to the hydraulic network. The valve 25 supplies the piston 22 to which is connected an injecting piston 33 projecting into an injection cylinder 34 leading to the cavity 37 in the fixed half 40 of the mould. A mass for moulding is delivered to the cylinder 34 from a tank 35 via a distributing device 36. With the control valves 5, 25 in the positions shown, pressure fluid is supplied via a pipe 7 to the space 4 in the cylinder 1, fluid in the space 3 being exhausted via pipe 6, valve 5 and pipe 9, and the piston 2 moves to close the mould 41, 40. At the same time fluid flows through a pipe 26 into the space 23 in the cylinder 21 to retract the piston 22, fluid in the space 24 being forced through a throttle valve 32 into a pipe 27 to charge the accumulator 20. When the mould 41-40 is closed, pressure builds up in the space 4 and is maintained by the high pressure pump 12. Reversal of the control valve 25 blocks the pipe 26 and cylinder 21 from the driving network and connects them to the exhaust pipe 29. Fluid then flows into the space 24 from the accumulator 20 and the piston 22 moves the injecting piston 33 into the injecting cylinder 34. Reversal of the valve 5 connects the pipe 7 to the exhaust pipe 9' and the pipe 6 with the supply pipe 8 so that fluid enters the space 3 to retract the piston 2. A normally closed valve 30 may be opened e.g. automatically, to charge the accumulator 20 from the pipe 15, and a normally closed valve 31 may be opened to reduce the pressure in the accumulator.