baber/WOPTO huggingface dataset:
Patent GB-818873-A (GB)
Title: Improvements in or relating to sleeve valves for controlling the flow of fluids
Inventor: RICHARDS GEORGE B
IPC: F16K3/24
Filed: 1956-05-08
Abstract: 818,873. Manually-actuated valves. LIQUID CONTROLS CORPORATION. May 8, 1956, No. 14303/56. Class 135. A sleeve valve for the control of fluid flow in a pipe line comprises a valve sleeve 36 slidable on a ported tubular member 35 welded to a flange 30 secured by screws 33 to one end of an open-ended housing 18. The member 35 is partitioned intermediate its ends adjacent its ports 37 whilst the sleeve 36 is formed with ears 52 through which passes a pin 54 fixed to an arcuate arm 80 operatively connected to a hand lever 76 by a crank-arm 78 and shaft 62. A sealing ring 83 mounted in a groove in either the member 35 or sleeve 36 and remaining at all times to the right of the ports 37 provides a first seal and a gasket 44 clamped between the flange 30 and a flange 20 on the housing 18 and entering a groove 42 in the member 36 on engagement by the bevelled edge of the sleeve provides a second seal. The gasket 44 instead of entering the groove 42 may have a larger internal diameter whence a sealing ring is mounted in an external groove in the member 35.
Patent GB-236904-A (GB)
Title: Improvements in safety brakes for lifts and elevators
IPC: B66B5/04
Filed: 1925-06-02
Abstract: 236,904. Waygood-Otis, Ltd., (Assignees of Lindquist, D. L.). July 11, 1924, [Convention date]. Safety retaining-mechanism.-In safety apparatus of the kind in which jaw members are actuated by a governor to grip a stationary guide rail when the speed becomes excessive, each jaw member is mounted upon parallel rocking links arranged substantially at right-angles to the rail and spring supported from an abutment provided with means for adjusting the spring pressure. The brake comprises a pair of rollers 54 mounted on longitudinally movable rods 67, and jaw members 52, 53 which are supported by pivots links 62. Springs 63, 70 urge the members 52, 52 and rods 67 downwards. The rods 67 rest on cams 72 mounted on shafts 23 which are geared together and one of which is geared to a shaft 27. One end of a rope 32 is attached to an arm 31 on the shaft 27 and the other end is attached to a hitch 34 on an endless rope 35 which is held normally in a releasing carrier 51 on the cage. The rope 35 passes over a sheave 36 driving a centrifugal governor and between pivoted jaws 41, 42. An arm 44 on the jaw 41 is engaged by a spring- pressed catch 46 and connected by a link 45 to the governor. When the governor reaches the speed for which it is set to act, the arm 44 is released and raised, and the jaws 41, 42 close on the rope 35 and arrest its movement. As the cage continues to descend the hitch 34 is withdrawn from the carrier 51 and the shaft 27 is rotated. When the shaft 27 has turned through an angle of 90, the rollers 54 have been raised into contact with the inclined surfaces 77 of the members 52, 53 and the guide rail 16. The rollers move upwards until arrested by the stops 78, as shown in Fig. 4, and during their movement the members 52, 53 are moved upwards and outwards against the springs 63. The stops 78 act as brake shoes for the rollers 54 which roll on the rail 16. The brake pressure is varied by adjusting the springs 63. If the retarding force increases on account of the condition of the guide &c., the members 52, 53 move away from the guide and decrease the pressure on the rollers until it reaches the value for which the springs have been set. The mechanism is reset by releasing the jaws 41, 42 by hand, engaging the catch 46, and replacing the hitch 34 in the carrier 51. If the cage is then raised. the rollers 54 are returned to their lowest position, Fig. 3. In the operation of the brake, when the shaft 27 has turned through an angle of 90, the rope 32 draws the rope 35 through the jaws 41, 42 as the latter jaw can move horizontally against the resistance of the spring 50. The guide is reduced in thickness at such a position that the brakes are released at the time, or shortly before, the cage comes into contact with the buffers 21 at the bottom of the shaft. The braking device may be mounted on the counterweight 13 instead of on the cage. Specification 240,474 is referred to.
Patent GB-401741-A (GB)
Title: Improvements in and relating to brakes
IPC: F16D65/22
Filed: 1932-05-20
Abstract: 401,741. Brakes. LOCKHEED HYDRAULIC BRAKE CO., Ltd. and BOUGHTON, E. B., Brock House, Langham Street, London. May 20, 1932, No. 14365. [Class 103 (i).] In an hydraulic brake, shoes 11 or other friction elements are applied to a brake drum 16 by liquid transmitted through a flexible coupling 24 to an expansible cylinder 23 or equivalent cylinder and piston device pivoted at 22 between, and carried by, two levers 18, each of which is fixed to a pin 17 journalled in the brake cover-plate, a projection 19 on each pin engaging a step 20 formed on the corresponding brake shoe 11. The brake may also be applied by a mechanically operated cam 13 between the shoe-ends 14. The operative length of each lever is adjustable by means of apertures 21 so that equal or different braking forces can be applied by the shoes. To relieve the pins 17 of binding stresses they are interconnected at their ends by tie-bars 26.
Patent GB-1315601-A (GB)
Title: Closing wire terminals
IPC: B23K35/00
Filed: 1971-05-11
Abstract: 1315601 Brazing CONTACTS Inc 11 May 1971 [9 June 1970] 14365/71 Addition to 1310277 Heading B3R A method of bonding copper and copper alloy workpieces comprises plating the workpieces with a very thin layer of silver or of tin or of both, oxidizing the workpieces at a temperature in the range 600 to 800 F. for 15-120 minutes, and heating the workpieces in appropriate juxtaposition in a reducing atmosphere to a temperature in the range 500 to 1600 F. for a short period, e.g. 10 minutes and cooling under oxidizing-inhibiting conditions. The method is applied to closing the groove 16 in a wire terminal 10, the plating being of the order of up to three ten thousandths of an inch, oxidizing being carried out by heating in air and the reducing atmosphere being, e.g. dissociated ammonia, forming gas or hydrogen. Where the terminals are processed in bulk quantities a parting compound may be applied before oxidation is carried out.
Patent GB-592917-A (GB)
Title: Improvements in or relating to volume control and mixing arrangements in broadcasting systems and the like
IPC: H03G1/00
Filed: 1945-06-08
Abstract: 592,917. Transmission systems. STANDARD TELEPHONES & CABLES, Ltd., and HARDISTY, R. W. June 8, 1945, No. 14559. [Class 40 (iv)] A volume control arrangement for broadcasting and similar systems comprises a source of sound signals located in a studio, a transmission line connecting the source to an amplifier located at a distant point and control means in the studio for controlling the resistance of a thermistor which forms part of the amplifier and controls the gain thereof. The arrangement may be used for mixing and then comprises a number of microphones 2 and 3 connected to amplifiers 16 and 17 and control stations 22 and 23 in the studio with lines 26 and 27 to control thermistors in the amplifiers. An additional source of sound 18 such as a recording device may be connected to an amplifier 19 and controlled from a station 24. The outputs of all these amplifiers may be combined in an amplifier 21 controlled from station 25. The amplifiers may comprise a valve 30 whose cathode is connected to earth through a bias resistance 31. The transmission line is connected to terminals 32 and 33 and the signals then pass through a transformer 34 and a thermistor arrangement to the grid of the valve. One thermistor has its resistance element 37 connected between the transformer and the grid while the other has its resistance 38 serving as the grid resistance. The output of the valve passes through transformer 39. Specifications 541,922, [Group XXXVI], and 558,757 are referred to.
Patent GB-805393-A (GB)
Title: Dry powder fire-extinguishing medium
IPC: A62D1/00
Filed: 1955-05-20
Abstract: 805,393. Fire - extinguishing powders. MINIMAX, Ltd. May 20, 1955 [May 21, 1954], No. 14676/55. Class 47 A fire-extinguishing powder comprises an ammonium sodium, sulphate, an ammonium phosphate, and a bicarbonate e.g. sodium or ammonium. The powder may also include zinc oxide and silica gel and small amounts of silver chloride, stearic acid or magnesium stearate, fuller's earth, or tricalcium phosphate.
Patent GB-806661-A (GB)
Title: Improvements in or relating to selenium rectifiers
IPC: H01L21/10
Filed: 1956-05-11
Abstract: A composition suitable for contact insulating washers in selenium rectifiers (see Group XXXVI) is prepared by mixing the reaction product of bis-phenol A (4,41-isopropylidenediphenol) and epichlorohydrin with an inorganic filler such as diatomaceous silica or talc, in a ketone type solvent such as diacetone, acetone, methylisobutyl ketone or methylethyl ketone.  When the composition is ready for use, a hardener consisting of an aliphatic polyamine such as triethylenetetramine or diethylenetriamine is added.  One suitable composition consists of 100 parts by weight of the reaction product, 15 parts diatomaceous silica, and 15 parts diacetone alcohol to which 5 parts of triethylenetetramine is added immediately before use. Specifications 526,482 and 570,722, [both in Group XXXVI], are referred to.
Patent GB-646754-A (GB)
Title: Improvements in or relating to means for facilitating adjustment of slides in machine tools
IPC: B23Q1/38
Filed: 1948-05-31
Abstract: 646,754. Bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. May 31, 1948, No. 14706. Convention date, June 10, 1947. [Class 12 (i)] [Also in Group XXIII] Means for facilitating the accurate adjustment of a slide in a machine-tool comprises either a striker device for imparting a blow to the slide (or to an associated part) or means for vibrating the slide (or an associated part); static friction between the sliding surfaces for the slide is thus reduced. In a centreless grinder the regulating wheel 3 is mounted on a slide 2 adjustable on the base 1; the grinding-wheel 5 and its driving motor 6 are mounted on a slide 4 adjustable on the base 1 by pawl and ratchet mechanism 15 operated by a cylinder 22 to which compressed air is admitted under the control of a manually-operated valve 11; a second valve 12 controls the admission of compressed air to a cylinder 25 containing a ball piston 26 which strikes the lower surface of the grinding-wheel slide 4 or a surface on some member connected thereto. The valves 11, 12 are operated jointly by a button 13 pivotally connected to a beam whose ends are pivoted on the valve spindles; the button is connected to the beam at a point nearer to the valve 11 than to the other valve, so that when the button is pressed the valve 11 is opened before the valve 12, whereby the slide-adjusting mechanism is operated in advance of the striker mechanism. The blow may be imparted along any suitable direction. The slide may be adjusted, and the blow imparted, electrically. Alternatively, means may be provided for vibrating the slide. According to the Specification as open to inspection under Sect. 91 the vibration may be produced by a rotary unbalanced mass or by a vibrating hammer operated electrically, pneumatically, hydraulically or mechanically. This subject-matter does not appear in the Speci. fication as accepted.
Patent GB-1500147-A (GB)
Title: Device for gripping and measuring weft thread
IPC: B65H51/22
Filed: 1975-04-09
Abstract: 1500147 Weft measuring drums ZBROJOVKA VSETIN NARODNI PODNIK 9 April 1975 [12 April 1974] 14713/75 Heading D1E A measuring drum for weft in a shuttleless loom comprises a drum 3 on to which the weft is wound, an axially displaceable gripping disc 6 with teeth 7 which hold the weft in a groove 23 in a housing 22. Weft from a supply passes under a nip roller 4, through a guide 24 and between the gripping disc 6 and housing 22. Axial movement of the gripping disc is controlled from a cam 12 by levers 14, 15 and roller 16 acting on sleeve 18 which is connected to pivot pin 5 carrying gripping disc 6 by a pin 19 passing through a hole 20 in a drive shaft 1. To remove the weft from teeth 7 a plate 9 is fixed on mountings 10 so that as the disc 6 is withdrawn or against the action of a spring 21 the teeth pass the plate 9.
Patent GB-1075737-A (GB)
Title: Retractable headlamp
Inventor: TEESDALE KENNETH JOHN BADDELEY
IPC: B60Q1/05
Filed: 1966-04-02
Abstract: 1,075,737. Vehicle bodies. FORD MOTOR CO. Ltd. April 2, 1966, No. 14736/66. Heading B7B. A retractable headlamp glass is cleaned by a fixed wiper as the lamp is extended and/or retracted.
Patent GB-496144-A (GB)
Title: Improved mixing apparatus
IPC: B01F29/64
Filed: 1937-05-28
Abstract: 496,144. Mixing-apparatus. GIBBS, H. A. May 28, 1937, No. 14789. [Class 86] Mixing-apparatus comprises a drum C, Fig. 3, which is charged and discharged through a side door and is rotated, by hand or power, oppositely to a central shaft E<1> having radial blades passing between blades on the drum. Heating fluid may be passed through the shaft by connections S<1>, S<2>, Fig. 4, and fluid for treating the material supplied to the drum by pipes F<1>, F<2>.
Patent GB-599273-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/24
Filed: 1945-06-11
Abstract: 599,273. Supply systems for X-ray apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 11, 1945, No. 14790. Convention date, June 15, 1944. [Class 38 (iv)] The filamentary cathode 7 of an X-ray tube 5 is suddenly brought to electron emitting temperature when a short exposure, e.g. 0.01 to 0.001 second, is to be made, by discharging through it a condenser 18 previously charged to a voltage considerably in excess of that for which the filament is rated. The filament, which may be non-inductively wound or reinforced against distortion by the discharge current, is maintained just below emission temperature by A.C. supplied through a transformer 19 which is still energized during the condenser discharge period. Anode current may be supplied by condensers 14, 17 which are charged through transformer 8, rectifiers 12, 15 and resistors 13,.16. Discharge of the cathode-heating condenser may be effected by triggering a held-off electronic tube 23 by a voltage pulse injected in its control circuit by a transformer 28, the pulse being obtained by pressing a button 34' which removes hold-off bias from a control tube 32 and allows a charged condenser 30 to discharge through the primary winding of the transformer. To reduce the insulation requirement ot the control circuits associated with condenser 18, the cathode of the X-ray tube may operate at, or near, earth potential. Fig. 5 shows such an arrangement and also shows the anode of the tube supplied by a condenser and spark gap system similar to that used in surge generators, the tube itself replacing the usual output gap.
Patent GB-885314-A (GB)
Title: An improved method of sealing vessels containing high internal pressures and means for performing such method
Inventor: SCHAAF MARTIN
IPC: F16J13/02
Filed: 1959-05-01
Abstract: 885,314. Closures for resisting fluid pressure. MULLER, W., and SCHAFHAUSEN, K. May 1, 1959, No. 14906/59. Class 123(1). Closure means for sealing pressure vessels e.g. the cylinders and valve chambers of flushing pumps, comprises an inner plate 10 and an outer screw-cover plate 1 having a stepped central bore which slidingly accommodates, in a pressure tight manner, a plunger 2 which co-operates with a nipple 3 screwed into the outer end of the central bore. A bore 8 in the screw-cover 1, for connection to a controllable source of hydraulic pressure e.g. that obtaining in the vessel itself, communicates with an annular recess in the inner face of the cover 1. With the inner plate 10 in position the cover 1 is screwed into the opening in the casing 9 until it bears lightly upon the inner plate 10. Hydraulic pressure medium is then connected to the bore 8 to force the plate 10 into the opening whereupon the nipple 3 is screwed down until the plunger 2 is firmly seated upon the cover-plate 10. The hydraulic pressure can then be relaxed. The closure can be undone by reapplying the hydraulic pressure to relieve the nipple 3 which, as subsequently with the screw-cover 1 after the pressure has been released, can be unscrewed by hand. As shown in Fig. 3 the parts 1, 2, 3 are manually screwed into a supporting ring 4 bolted to an hydraulic cylinder until the plunger 2 contacts the cover-plate 5 which closes and locates the corresponding end of the cylinder, hydraulic pressure means being introduced into an annular cavity between the cover-plate 1 and the plunger 2 through bores 6 radiating from a central bore in a stem of plunger 2 projecting upwardly through a central opening in the nipple 3. Another arrangement is shown for a valve casing cover.
Patent GB-1185851-A (GB)
Title: Improvements in Resilient Couplings, in Particular for Use in Automobile Vehicles
IPC: F16D13/68
Filed: 1967-03-31
Abstract: 1,185,851. Resilient couplings. SOC. LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. 31 March, 1967 [6 April, 1966], No. 14921/67. Addition to 1,140,048. Heading F2U. In a resilient coupling of the type described in the parent Specification wherein elastomeric blocks 10 between a clutch plate 1 and hub 5 transmit torque in shear up to a predetermined value and above that value torque is transmitted through elastomeric pads 11 in compression, the clutch plate 1 and hub 5 are maintained aligned by projections 20 on the hub 5 which abut the plate 1. The pads 11 are fixed to arms 7 on the hub 5 and coact with the sides 4 of recesses 3 in the clutch plate. During assembly the blocks 10 are prestressed axially to urge the projections 20 into contact with the plate 1.
Patent GB-526090-A (GB)
Title: Apparatus for rendering fats
IPC: A47J36/26
Filed: 1939-05-19
Abstract: 526,090. Rendering fats. UTTLEY, INGHAM, & CO., Ltd., FRAY, B. G., and GREENWOOD, J. May 19, 1939, No. 14925. [Class 91] Apparatus for rendering butchers' scrap or other fat comprises a chamber a removably supporting a pan d containing a removable grid or perforated sheet f for supporting the fat ; the pan is heated by a gas ring b or by electric or other means, the melted fat passing through a central outlet pipe d<SP>1</SP> to a removable straining chamber e and a pipe e<SP>2</SP> to a receiver ; moisture and fumes rise through a conical tube f<SP>1</SP> and apertures d<SP>3</SP> in a removable lid d<SP>2</SP>, preferably to a domed lid g with a capped outlet g<SP>1</SP>; gas fumes pass through openings c<SP>2</SP>. Preferably the pan a has a jacket a<SP>4</SP> so that it is left cool by air rising to openings c<SP>3</SP>; the bottom of the pan d slopes to the centre and has raised portions there to keep the outlet opening clear ; and the grid f is swaged or formed with ridges to keep it clear of the pan.
Patent GB-316369-A (GB)
Title: An improved exhaust silencing and scavenging device for internal combustion engines
IPC: F01N13/02
Filed: 1928-05-22
Abstract: 316,369. Tomanovich, J. May 22, 1928. Exhaust silencers.-Exhaust gases from the cylinder 2, Fig. 1, pass by a pipe 1 into an expansion chamber 3 which encloses a shell 6 with inlet aperture 8 thereto. Between the shell and outer casing is a chamber 7 containing straight and arcuate diaphragms 10. The gases are discharged from the pipe 1 at 4 and circulated in the chamber 7, escaping ultimately through aperture 8 into the shell 6 whence they issue through a pipe 11 into a discharge chamber 13 containing a series of expanding cones 12, Fig. 4, with open telescopic joints. Discharge takes place at 14. An automatic valve 17 may be mounted on the pipe 11 or on the cylinder, to admit air between successive blasts of exhaust. In a modification, the cones 12 may be replaced by a series of semi-cones or curved vanes the ends of which overlap. In a further modification, Fig. 9 (not shown) two complete devices are used in series, the discharge from chamber 13 of one device being led to pipe 1 of the next.
Patent GB-775882-A (GB)
Title: Improvements in or relating to fluid pressure actuated electric switch devices
IPC: H01H35/38
Filed: 1954-05-21
Abstract: 775,882. Actuation of switches. BARKSDALE, L. S. May 21, 1954 [Jan. 8, 1954], No. 14980/54. Class 38(5) A micro switch 36 is supported in a channel-section member . 44 mounted at one end by a leaf spring 47 fixed to a base 38, the other end of the member 44 being bifurcated to receive a bolt 51, a spring 52 biasing the member 44 against the bolt head 51a. The switch button 37 is operated by an actuator 27 driven by a piston 18 upon pressure introduced at 20, the spring 52 thus permitting yielding of the switch 36 to prevent damage. By adjusting the nuts 53, 54 on the bolt 51 the distance between the button 37 and actuator 27 may be varied and thus also the pressure at which the switch is operated. A spring 28 biases, with very light pressure, a flange 30 on the actuator against a stop formed by the housing 16, upward movement of the actuator being limited by its engagement with the end wall 29.
Patent GB-942157-A (GB)
Title: Improvements in or relating to energy dissipation devices
Inventor: BROWN GORDON
IPC: G21C7/20
Filed: 1961-04-25
Abstract: 942,157. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. April 2, 1962 [April 25, 1961], No. 14992/61. Heading G6C. An energy dissipation device for use in a nuclear reactor to dissipate energy from a falling body such as a control rod or a fuel element is held against displacement by coolant flow by means of a latch having two parts one engageable with the other, one part attached to the device and the other to the reactor structure, the parts being readily engageable by elastic deformation of the part attached to the device but disengageable only by stressing the latch until the part attached to the device deforms plastically. As shown in Fig. 1, a reactor moderator structure comprises columns of graphite blocks 36 each supported by a single block 37 supported in turn by a steel plate 40. A collapsible tube 13 of stainless steel is secured at its lower end to a sleeve 3 and at its upper end to a tubular support member 17 which has welded to it an inner former tube 20 and an outer shroud tube 21. The member 17 has an integral support sleeve 25 to which is keyed a graphite sleeve 27 carrying at its upper end a steel impact ring 28. A fuel element cluster having an outer graphite sleeve 33 rests on the ring 28. Five equi-spaced spring claws 9 of stainless steel are secured to the sleeve 3 and have upwardly and outwardly turned ends 11 which pass through slots 12 in the sleeve 3. The device is installed in the reactor under "off-load" conditions by assembling together the member 17,the tubes 13, 20 and 21, and the sleeve 3 and lowering the assembly into a tube 5 forming part of the reactor structure. When the spring claws 9 meet the conical upper face 7 of a ring 4 secured to the tube 5 they are deflected inwardly under elastic deformation to allow the further lowering of the assembly until the position shown in Fig. 1B is reached. To remove the fuel element cluster, a grab is lowered into the channel 34 to engage the cluster which is then withdrawn upwardly. Should the cluster inadvertently drop during its removal it falls and strikes the impact ring 28, the force.of impact being absorbed by the progressive collapsing of the tube 13 which corrugates along its length in the manner indicated by the preformed corrugated portion 16. The former tube 20 assists in centralising the collapsed tube 13 and the shroud tube 21 controls its outer diameter so that it does not jam in the tube 5. In order to remove the device, e.g. so as to replace a tube 13 deformed by a fallen fuel cluster, a tool is lowered into the moderator structure having remotely operated radially expansible members which engage the conical face 23 of the member 17 and a large upward force is then applied to the tool which stresses the ends 11 of the claws 9 until they deform plastically and move inwardly over the lower face 8 of the ring 4 and through the slots 12. One type of such tool is described in detail. Specifications 783, 094 and 873,073 are referred to.