baber/WOPTO huggingface dataset:
Patent GB-630974-A (GB)
Title: Improvements in or relating to combined seals and guides for cylindrical members
IPC: F16J15/40
Filed: 1946-10-11
Abstract: 630,974. Valve accessories. KEELAVITE CO., Ltd., and CHITTENDEN, G. E. Oct. 11, 1946, Nos. 30395 and 36326. [Class 135] [Also in Group XXVI] In a combined seal and guide for a hydraulically operated cylindrical member such as an axially sliding valve of the kind in which the cylindrical member E passes through a cylindrical guide D which also has to act as a seal to prevent or limit escape of liquid under pressure from one end to the other thereof through the working clearances between the co-operating surfaces of the cylindrical member and its guide, said co-operating surfaces comprise a relatively short sealing portion D<SP>3</SP> and a relatively long guide portion or two relatively widely spaced guide portions D<SP>1</SP>, D<SP>2</SP>, the two ends of the guide portion or of each guide portion being subject to the same pressure as one another so that there is no tendency for liquid flow to take place through the working clearance of the guide portion or portions. The relatively short sealing portion D<SP>3</SP> is separated from the guide portions D<SP>1</SP>, D<SP>2</SP> by annular grooves D<SP>4</SP> and D‹ respectively, each of which is in free communication through a pressure balancing passage such as E3, D<SP>6</SP> with the space at the opposite end of its adjacent guide portion. The guide member may be of uniform cross-section throughout its length and the cylindrical member be formed with one or more grooves or recesses to provide the necessary chamber or chambers. According to the first Provisional Specification there is a relatively short sealing portion and a relatively long guide portion having a helical or like groove.
Patent GB-1270036-A (GB)
Title: Motor compressor
IPC: F25B31/02
Filed: 1969-06-16
Abstract: 1,270,036. Compressors. DANFOSS A/S. June 16, 1969 [June 20, 1968], No.30405/69. Heading F1N. The subject matter of this Specification is identical with that described in Specification 1, 254, 956, but the claims are concerned with the provision of balance weights on the bearing disc fixed to the upper end of the crank-shaft.
Patent GB-1235438-A (GB)
Title: Polymers containing diacetone acrylamide
Inventor: ZEH HERBTRT JOHN JR
IPC: C08F226/04
Filed: 1969-06-16
Abstract: 1,235,438 Diacetone acrylamide copolymers. CALGON CORP. 16 June, 1969 [19 June, 1968], No. 30410/69. Heading C3P. Novel water-soluble copolymers comprise (a) 1-60% by weight of units which are derived from diacetone acrylamide and have the formula (b) 1-99% by weight of units having the formula the balance, if any, being (c) units of the formula where each of R 1  and R 2  is a C 1 -C 18  alkyl group and R 3  is a carbamoyl, carboxy or cyano group. Preferred copolymers are binary copolymers of diacetone acrylamide and dimethyl diallyl ammonium chloride, and ternary copolymers of diacetone acrylamide, dimethyl diallyl ammonium chloride and acrylamide; in these terpolymers the acrylamide groups can subsequently be hydrolysed to the free acid or corresponding salt form, e.g. with caustic soda. In examples the aforementioned terpolymers are prepared by polymerizing the corresponding monomers in an aqueous medium containing sodium salicylate and EDTA and in the presence of a catalyst system comprising ammonium persulphate, sodium metabisulphite and cupric sulphate; and the preferred binary copolymers are prepared by aqueous polymerization using ammonium persulphate catalyst. The cationic polymers are useful as flocculants and also for forming films or coatings; the coatings are electroconductive. The polymers can be cross-linked to water-insoluble form by reacting with agents such as hydrazine, formaldehyde or latent formaldehyde donors, diamines and aluminium isopropoxide.
Patent GB-1300336-A (GB)
Title: Improvements in or relating to absorbent pads
Inventor: MORANE BRUNO
IPC: A61F13/15
Filed: 1970-06-23
Abstract: 1300336 Absorbent pad L'OREAL 23 June 1970 [24 June 1969] 30473/70 Heading A5R An absorbent pad, e.g. a sanitary towel, surgical dressing or baby's napkin liner, comprises a plurality of homogeneous spherical matrices 2 of absorbent material which are disposed within a permeable deformable bag 1 so as to be movable relative to one another and to be displaced so that the pad as a whole can adopt different shapes. The bag 1 containing balls 2 of absorbent material, can be produced from a knitted cotton fabric or a non- woven fabric, or be produced in the form of a net of sufficiently small mesh as not to allow the balls 2 to pass through. The balls 2 may be made of wood fibre, viscose, cellulose wadding or cotton. The bag 1 may be surrounded by a web 3 of absorbent material such as cotton fibres. In the case of a sanitary towel the lower face and the side faces of the web 3 may be covered with a web of hydrophobic cotton.
Patent GB-280908-A (GB)
Title: Method for obtaining a very high vacuum
IPC: H01J7/18
Filed: 1927-11-14
Abstract: 280,908. Loewe, S. Nov. 16, 1926, [Convention date]. Vacuum tubes.-A high vacuum is obtained in a, valve tube &c. by vaporizing magnesium in the vessel twice. on the second occasion in another position which has remained free of the precipitated material. The vessel 1 contains two pieces of magnesium 5, 7 which are heated by eddy currents generated by a coil 6, moved after sealing to position 6'. A mirror is thus formed at each end, the middle of the tube being left free. A mica screen 9 prevents formation of a short-circuit at the point 10 where the electrodes are sealed in. The heating of the piece 5 may be caused to expel gas occluded in the piece 7 before use. In a modification, a single piece of magnesium is used capable of being moved from one part of the tube to another.
Patent GB-681146-A (GB)
Title: Improvements in lathes
IPC: B23B23/00
Filed: 1948-11-24
Abstract: 681,146. Lathe details. WALDRICH, O. Nov. 24, 1948, No. 30523/48. Class 83 (iii). A lathe is provided with a bed having at least three shears which are not all of the same height and a tailstock with separately-supported front and rear limbs giving a bridge form, of which limbs one is supported on the rearmost shear while the lathe carriage does not engage this shear. In one form, Fig. 1, shears 15, 16, 18 are provided, the first two being of the same height while the third and rearmost extends approximately to the level of the lathe centre axis 20. The tailstock 21 bridges the middle shear and is supported by a guideway 22 on the front shear 15 and T-slots on the top 19 of the rear shear 18. The saddle 26 is carried on guideways 28 on the two shears 15, 16 of the same height and by making the tailstock 21 of staggered form, Fig. 2, the tool 32 may operate on work right up to the tailstock centre 33. The connecting webs for the bed may follow a cylindrical form into which a saddle of thickened centre-section may extend. The top of the rear shear 19 may be used for securing a steady. A steady 55, Figs. 11 and 12, for supporting the tailstock barrel 43 against deflection is bolted at 56 to the rearmost shear. Other methods of giving extra support to the tailstock barrel are described. The centre may be arranged within a pair of eccentric sleeves so that it may be set over for taper turning.
Patent GB-966218-A (GB)
Title: Improvements in or relating to vehicles incorporating hydraulic brake mechanisms
IPC: F16D65/18
Filed: 1960-09-05
Abstract: 966,218. Hydraulic pressure boosters. FIAT S.p.A. Sept. 5, 1960 [Sept. 5, 1959], No. 30526/60. Headings F2E and F2F. A vehicle incorporates a pressure booster connected between a master cylinder and a braking cylinder, the booster having a piston 4, 5 wherein the ratio of the area of one face to the area of the other face is within the range 2.5 to 6.0, the booster being positioned with the braking cylinder at the wheel of the vehicle. Fluid from a master cylinder acts via port 8 in low pressure chamber B to move piston 4, 5 against spring 6; after a small displacement, a spring 14 closes valve 12; further movement of the pistons pressurizes fluid in high pressure chamber A connected via port 9 to the brake cylinders. In Fig. 3 (not shown), the booster is incorporated into a brake cylinder of an internal shoe-drum brake, the piston 4, 5 sliding in the brake cylinder piston which forms one end wall of the chamber A; and in Fig. 5 (not shown), the booster is integral with the cylinders of a spot type disc brake to which it is connected by a pipe and port, respectively. Specification 966,219 is referred to.
Patent GB-977422-A (GB)
Title: Rotary shaft seals
IPC: F04D29/12
Filed: 1961-08-24
Abstract: 977,422. Mechanical seals. BORG-WARNER CORPORATION. Aug. 24, 1961 [Feb. 10, 1961], No. 30616/61. Heading F2B. In a mechanical shaft seal comprising a rotatable ring 16 and a non-rotatable ring 30 in facial sealing contact with each other, means are provided for cooling circumferentially spaced portions 56, 57 (Fig. 6) of one ring 16 adjacent its sealing face 46 so that in operation the face 46 is warped due to the unequal thermal expansion. The ring 16 is attached by pins 25 to a sleeve 17 secured to the rotary shaft 13 and pins 35 on the ring 30 engage axial slots 34 in a sleeve 32 integral with a flange 14 bolted to the seal housing 11. The ring 30 is sealed to the housing 11 by a flexible bellows 41 and urged into contact with the ring 16 by springs 37. Radial bores 51 in the periphery of the ring 16 open into an annular groove 50 in the face 46 which communicates with an annular groove 52 in the sealing face 47 of the ring 30 and radial grooves 53 in the face 47 extend from the groove 53 to the periphery of the ring 30. The invention is particularly suitable for sealing a gas and, in operation, the ring 16 acts as a centrifugal pump so that gas in the housing 11 is drawn in through the grooves 53 and discharged through the bores 51. The cooling effect of the pumped gas on the material adjacent the bores 51 causes the face 46 to be warped and form pockets such as 60 and 61 in which, it is stated, small amounts of gases are trapped that force the faces 46 and 47 apart so that a gap 62 filled with gas exists between them.
Patent GB-1515470-A (GB)
Title: Fuel injection pump and timing control system therefor
IPC: F02M41/14
Filed: 1976-07-22
Abstract: 1515470 Fluid-pressure servomotor systems STANADYNE Inc 22 July 1976 [22 July 1975]  30655/76 Heading G3P [Also in Division F1] The cam ring 20 for reciprocating the radial plungers (17) of a fuel-injection pump is angularly adjustable by a piston 21 subject to pressure in a chamber 21, the supply and exhaust of the chamber being controlled by a valve 74-76 which receives feedback from a beam 81 pivoted to the piston 82 and having a profiled surface 87 which engages a stop 83. The relative positions of piston 74 and sleeve 75 determine whether or not speed dependent pressure in a chamber 76 flows through a port 104 into the chamber 72 or out of the latter through a port 102. Since the positions of the sleeve 75 and piston 74 are determined respectively, by the position of a quantity control member 60 and the pressure in the chamber 76 the valve is responsive to both load and speed. A metering valve 25 controls flow from a feedpump (not shown) through passages 26, 27 to the pump working chamber. The valve comprises a member 34 on which a member 31 is angularly and axially movable to control the overlap of ports 42, 43, the angular movement being in response to the load on the associated engine and the axial movement in response to speed. The angular movement is effected by the manually operable quantity control member 60 operating against a spring 66 whereas the axial movement is effected by a speed governor, Fig. 4 (not shown), or by speed dependent pressure derived from the passage 26. Pressure in the passage 26 is admitted to a chamber 33 between the members 31, 34 which thereby expands and contracts with changes in speed. The consequential automatic adjustment of the overlap with speed ensures that for a given angular position (load) the fuel delivery per stroke is substantially constant regardless of the speed.
Patent GB-423267-A (GB)
Title: Improvements relating to power transmitting mechanisms
IPC: F16H3/54
Filed: 1933-11-04
Abstract: 423,267. Epicyclic variable speed gearing. NORMANVILLE, E. J. DE, Haydon House, Kingsbury, Middlesex, and DE NORMANVILLE TRANSMISSIONS, Ltd., Humber Road, Coventry. Nov. 4, 1933, No. 30686. [Classes 80 (i) and 80 (ii)] The carrier C<1>, Fig. 1, is fixed to the driving shaft a, and the annulus e to the driven shaft b, the sun wheel g being provided with a brakedrum k. A freewheel clutch l is interposed between the driving and driven shafts, so that when the drum k is free there is a direct drive through this freewheel clutch, while when the drum is braked there is an overdrive, and the clutch overruns. A freewheel clutch n is interposed between the drum k and the casing so that when the device is used in a motor vehicle engine-braking may be obtained. In a modification, this freewheel clutch is connected to the casing through a slipping brake to limit the amount of braking obtainable.
Patent GB-1479112-A (GB)
Title: Semiconductor arrangements
IPC: H01L25/11
Filed: 1975-07-23
Abstract: 1479112 Semiconductor devices SIEMENS AG 23 July 1975 [24 July 1974] 30753/75 Heading H1K A semiconductor arrangement comprising an encapsulated semiconductor component 1 is characterized in that one of the outer surfaces of a housing for the component, e.g. that of the electrically conducting base 2, makes an angle which is greater than 0 degrees but less than 45 degrees with the normal to main parallel surfaces 6, 7 of a semiconductor element 8, and a current supply member or cooling body 5 is provided with a surface (16), Fig. 2 (not shown), making the same angle with the normal as the said outer surface so as to mate with the latter, the semiconductor arrangement being further characterized in that two external disc springs 18, 19 provide pressure contact between the base 2 and the current supply member 5 and internal pressure contacts between the semiconductor element 8, a supply electrode 9 and the electrically conducting base 2 through softsolder layers 11, 12, an electrically conducting cover 3 being insulated from the base 2 by an insulating material 4. An upper current supply member 17 presses against the cover 3 through the action of the spring 18. As shown, the base 2 is provided with a truncated-cone shaped perjection 14; its peripheral surface mating with the surface (16) of an opening (15) in the current supply member 5. In another embodiment, Fig. 3 (not shown) a frusto-conical recess is provided in the outer surface of the base in which a mating projection on the current supply member in the form of a truncated cone is located. In the embodiment of Fig. 5 (not shown), the entire base is of frusto-conical form at its outer surface whereas in the embodiment of Fig. 4 (not shown) the base is provided in its underside with an annular bead (33) whose flanges form contact faces.
Patent GB-1426736-A (GB)
Title: Electrode for metal recovery
IPC: C25C7/02
Filed: 1972-06-30
Abstract: 1426736 Combustible electrolysis electrode KODAK Ltd 29 June 1973 [30 June 1972] 30782/72 Heading C7B A cathode useful in recovering Ag from used photographic fixer solutions comprises carbon fibres as the conductive material, and a solutionpermeable support therefor of combustible material. The support may comprise a non-woven fabric, an impermeable support of e.g. a cellulosic material or polyethylene terephthalate, to which is bonded the C, supported in a solution-permeable resin, or may comprise reinforcing fibres e.g. of cotton, nylon or polyester, with which the C fibres are felted. The cathode may form part of an electrode assembly enclosed in a perforated or liquid-tight housing, the latter forming a complete electrolytic cell. In Fig. 1, anodes and cathodes 11 each comprise a C-fibre sheet 14 encased in a non-woven fabric 13 supported on plastics frames 12. Rods 15 support an alternating anode/cathode array, the lower rods resting in saddles 18. Each electrode has a C fibre "pigtail" 16, 16<SP>1</SP> for effecting electrical connection. The cell or electrode assembly may be in a housing 21. The whole cell or the assembly may be of combustible material enabling incineration to recover deposited metal. An electrode assembly may be suitable for insertion into a recovery cell independently of the remaining cell components, in which case it is enclosed in a perforated housing, e.g. of cylindrical shape. Cathodes may comprise cylindrically convoluted plastics sheets with a C fibre solutionpermeable coating on both sides.
Patent GB-1367641-A (GB)
Title: Proximity alarm control device
IPC: G08B21/02
Filed: 1971-07-01
Abstract: 1367641 Detecting voltage: proximity detectors CRANE PRODUCTS MFG CO Inc 1 July 1971 [19 April 1971] 30834/71 Heading G1N and G1U For a proximity alarm which gives warning when an object enters an electrostatic field, an alarm control device comprises an electrically conductive casing containing a signal control circuit which is encapsulated and plugged into the casing, a TEST circuit having a first condition for applying an induced signal to the signal control circuit and a second condition for testing the operation of the control device, the signal control circuit amplifying the induced signal and having an oscillator for providing a signal in response to the amplified signal to operate an alarm circuit and a power supply voltage regulator. As described, the sensor 11 may be an antenna mounted on the boom of a crane or on a fork-lift or ladder truck. When the antenna is moved into the proximity of a power line, the induced voltage is reduced by means of an adjustable capacitive divider 14 and a potentiometer 23 and passed to the gate of a field-effect transistor 25, feeding a two-stage amplifier comprising transistors 26, 27. Capacitors 62, 64, 67 reduce the sensitivity to radio frequency signals. The amplified signal is rectified by a half-wave voltage doubler 28, 29, 31 and used to reduce the current in transistor 32 so as to allow a uni-junction transistor 37 and capacitor 36 to oscillate at a frequency which is a function of the signal strength and having a maximum value of five pulses per second. After stretching by a transistor 38 and capacitor 40 and amplification by transistors 43 and 45, the pulses are used to operate a relay 46, arranged to provide audible clicking and to flash a lamp 81. Testing. A TEST button 12 operates contacts 13a... 13c which check the continuity of the antenna feeder 11, check the power supply by means of lamp 80 and check the oscillator 37 by short circuiting the base of transistor 32. Construction. The circuit shown in Fig.5 may be encapsulated in resin and mounted together with the switching arrangement shown in Fig. 6, in an aluminium casing Figs. 1-4, (not shown), the circuits shown in Figs. 5 and 6 being coupled by a multiple plug and socket 24a, 24b.
Patent GB-480662-A (GB)
Title: Improvements in or relating to barrels
IPC: B65D43/22
Filed: 1937-11-10
Abstract: 480,662. Heads for barrels. VENESTA, Ltd., and BARBER, H. J. Nov. 10, 1937, No. 30846. [Class 21] A barrel of the type in which a head c is fixed between two hoops b, e secured to the inner surface of the barrel, has the upper hoop e secured by bendable metal clips f secured at spaced intervals by rivets &c. such as g, holes h being provided for nails which secure the hoop e to the clips. When the barrel has external body bands the exterior part of each clip is located between such band and the exterior of the body. If two concentric interior upper hoops are employed the outer one is gripped by the clips.
Patent GB-232143-A (GB)
Title: Improvements in or relating to apparatus for cleaning the windscreens of motor propelled vehicles
IPC: B60S1/18
Filed: 1924-12-23
Abstract: 232,143. Monnot, J. F. Dec. 23, 1924. Windows and the like, cleaning. - Apparatus in which a squeegee is traversed over the glass by connection with a nut engaging a screw, is provided with means for preventing the ingress of dust to the screw. The casing a enclosing the endless-threaded screw b has a slot d through which passes a thin arm g integral with the nut c. To the margins of the slot d are secured by means of plates e thin strips of flexible material f pressing against each other to close the slot, the arm g projecting between these flexible lips and carrying at j the squeegee h. The arm g has its edges bevelled so that the lips contact with each other up to these edges. The flexible strips may be reinforced and a series of springs may be provided for pressing them towards each other.
Patent GB-747746-A (GB)
Title: Improvements relating to tatting shuttles
Inventor: SANDERS NORMAN THOMAS
IPC: D04C1/00
Filed: 1953-11-07
Abstract: 747,746. Tatting. NEEDLE INDUSTRIES, Ltd. Nov. 8,1954 [Nov. 7, 1953], No. 30870/53. Class 74 (1). A tatting shuttle is made by pressing or stamping out from resilient sheet material two longitudinally bowed members 10, 11, which are secured together with their pointed ends in pressure contact, but spaced apart centrally, by means of a centrally disposed hollow boss 13 projecting from the concave face of at least one of them. Each member may have a boss 13, as shown, the opposing faces of whch are stuck and/or welded together by heated pressure members. The members 10, 11 may be ribbed or fluted longitudinally at 12, as in Specification 747,745. The sheet material may be of cellulose acetate or nitrate, or polyvinyl chloride.
Patent GB-1484954-A (GB)
Title: Device for detecting elongation of a conveyor belt joint
IPC: B65G43/02
Filed: 1975-07-23
Abstract: 1484954 Detecting elongation of a conveyer belt NIPPON KONBEYA KK 23 July 1975 30899/75 Heading B8A Elongation of a conveyer belt 1 due to fatigue, is detected by the action of sensors A and B in conjunction with suitable control circuitry (not shown), together with a pair of magnetic elements b and a spaced on the belt the same distance apart as the distance between the sensors. The elements a and b are placed on either side of a joint 2 of the belt. The control circuitry is put in readiness by the element a passing over the sensor A (when the belt is moving from right to left). When the element a reaches the sensor B no detection response occurs, provided the element b is simultaneously above the sensor A. Otherwise a signal is generated which can be arranged to stop the belt or sound an alarm.
Patent GB-1163500-A (GB)
Title: Improvements in apparatus for moulding soles on to Footwear Uppers
IPC: B29D35/00
Filed: 1967-07-05
Abstract: 1,163,500. Moulding footwear. DESMAWERKE G.m.b.H. 5 July, 1967 [9 July, 1966], No. 30911/67. Heading B5A. In apparatus for injection moulding or vulcanizing a sole on to a lasted upper, the last 10 is detachably secured to a presser piece 11 by a tilting-preventing connection. As shown, the last 10 has a slidable connection 22, 23 with a journal 27 which is received in a bearing block 28 and held by a clamping strap 29 and screw 30. A spring-loaded catch 25 can be pivoted to release the last by a hand lever 26. The last can be adjusted within limits by pivoting about a domed portion 32. A forward presser part 15 has a replaceable abutment piece 16 bearing on the forward part of the upper and adjustable by a nut 20.