baber/WOPTO huggingface dataset:
Patent GB-286731-A (GB)
Title: An improved method of producing a viscous condensation product
IPC: C08G14/04
Filed: 1928-03-09
Abstract: 286,731. Schieferwerke Ausdauer Akt.-Ges. March 10, 1927, [Convention date]. Condensation products of phenol, p-dichlorbenzene, and fermaldehyde.-A viscous condensation product is made by heating to boiling a mixture of phenol, p-dichlorbenzene, and formaldehyde in the presence of a catalytic salt mixture composed of sodium and ammonium chlorides and hexamethylene tetramine. The product is separated from the water formed and evaporated and cold water poured in while stirring. A further reaction occurs and the water is changed until no further action ensues. The viscous product obtained after final separation of water may be converted into a hard mass by heating to about 80 C., further slight heating of short duration imparting great hardness. An example is given. The catalytic salt mixture is formed by introducing formaldehyde into aqueous ammonium chloride, which is supersaturated with sodium bicarbonate. The Specification as open to inspection under Sect. 91 (3) (a) claims also the use of the product alone or with fillers to form solid artificial materials by cold pressure and subsequent heat hardening. This subject-matter does not appear in the Specification as accepted.
Patent GB-744414-A (GB)
Title: Improvements connected with rotary pumps
IPC: F04B43/14
Filed: 1953-03-18
Abstract: 744.414. Rotary pumps. FORD, R. C. June 17, 1954 [March 18, 1953], No. 7450/53. Class 110(2) In a pump of the flexible-chamber type, each roller 9, which presses on the inner layer of the chamber, is resiliently mounted by having its spindle bearings 14 supported on springs 15 or a rubber-like material. Fig. 3 shows the bearings carried by pairs of blocks 13 which are slidable between arms 11 of a carrier 12 mounted on a, driving shaft 17. An end piece 22 acts as a stop for the blocks 13, a rubber cushion 24 preferably being interposed as shown. Adjustment of the spring loading is secured by holes 25 into which a screwdriver may be inserted to engage a screw 26. The rollers press a lining 5 into a groove 4 to pump fluid from an inlet 2 to an cutlet 3. The lining is clamped into position by expansible rings 6 and also held at 7. Alternatively, the pumping chamber may be formed of a rubber or like tube. The pump body 1 may be secured to a cradle 21 by means of straps 27 and a screw connector 28. Fig. 6 shows a modified roller mounting comprising a tube 33, secured by a pin 37 to the shaft 32, which is grooved to accommodate the rollers 9. The ends 14 of the roller spindles are shaped as shown to allow slight tilting of the rollers. One spring 35 may be used, the block 36 then being dispensed with or a rubber block or blocks may be used between a pair of springs 35. Specifications 590,045, 612,604 and 744,413 are referred to.
Patent GB-199118-A (GB)
Title: Improvements in electrical insulating cylinders
IPC: H01F27/32
Filed: 1922-03-14
Abstract: 199,118. Fleming, A. P. M., Whiteley, Ltd., B. S. & W., and Metropolitan- Vickers Electrical Co., Ltd. March 14, 1922. Transformers.-A barrier for separating two surfaces at different potentials, such as the windings of a transformer, comprises a sheet of insulating-material having its edges united by means of a lapped joint 12, the barrier being so shaped that ducts 9 are formed between it and the surfaces to be separated. For this purpose, the barrier may be of polygonal form or it may be formed with a number of longitudinal corrugations 10 united by flat portions 11, as shown. Reference has been directed by the Comptroller to Specifications 20523/11 and 173,320.
Patent GB-319652-A (GB)
Title: Improvements relating to cathodes for electron discharge tubes
IPC: H01J1/20
Filed: 1929-03-07
Abstract: 319,652. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Sept. 25, 1928, [Convention date]. Vacuum tubes.-An equipotential cathode 2 is coated with an alkali metal, e.g. caesium, or with a compound thereof, and is insulated from a tungsten or other heating filament 1 by alumina 3 or other insulating material. A tungsten cylinder forming a. cathode may have a flange 4 which screens the discharge from the electron-emitting filament 1. A number of discharge devices may have their cathode-heating filaments connected in series e.g. to lighting mains, and the coated cathodes may be given a high potential relatively to the filaments by connecting them in parallel. Specification 309,447 is referred to.
Patent GB-622396-A (GB)
Title: Improvements in or relating to electric cable plug-and-socket connectors
IPC: H01R13/62
Filed: 1947-03-19
Abstract: 622,396. Two-part couplings. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd. March 19, 1947, No. 7521. [Class 38 (i)] A plug operating and retaining device comprises a rotatable spindle 10 secured in the bore 16 of a boss 11 on a socket casing 12 and engaging a threaded sleeve 15 which is provided with a plug engaging lug 18. The lug is moved axially to engage or disengage the plug contacts with the co-operating socket contacts on rotating the spindle by a key 21. Grub screws in segments 20 engage an annular recess 19 on the spindle to prevent it moving axially. In modifications, the threaded sleeve is short (Figs. 3, 4, not shown), and the grub screws are replaced by a removable stop-plate through which the spindle end projects (Figs. 5, 6, not shown). The spindle may be provided with a recess 22 interlocking with a switch to prevent the removal of a live plug.
Patent GB-1380735-A (GB)
Title: Container and a stopper therefor
IPC: A47J41/00
Filed: 1972-02-18
Abstract: 1380735 Thermally insulated vessels DR ANSO ZIMMERMANN ISOLIERFLASCHEN KG and A SCHMITT [trading as HARTOLIT ADALBERT SCHMITT] 18 Feb 1972 [17 July 1971] 7530/72 Heading F4U [Also in Division B8] A thermally insulated container comprises an insulating insert 2 within a container 1 the neck of which has an annular disc-shaped shoulder 4 provided with two opposing screw-thread segments 6 and with two recesses 7 such that when a threaded stopper 3 is partially unscrewed the recesses 7 form passages (8), Fig. 6 (not shown), which constitute a liquid outlet and an air inlet. The shoulder may have a pouring lip 9 or a sharp angle shoulder, and the stopper is hollow with an angled seating surface 11 or a sealing ring 12 and is closed by a threaded cover 14. The insulating insert 2 may comprise a vacuum flask.
Patent GB-468403-A (GB)
Title: Improvements in and relating to tubular poles, masts and posts
IPC: E04H12/08
Filed: 1936-03-13
Abstract: 468,403. Strengthening tubular posts. POLARIS, Ltd., and FINER, H. J. March 13, 1936, No. 7566. [Class 20 (i)] An oval-section tubular metal post built up of superposed sections formed from sheet metal as described in Specification 426,074, is stiffened at the positions at which staying devices are secured by means of a tubular distance-piece 5 which is passed through opposed apertures in the wall of the tube, its ends being flanged over at 5a on the outside of the post and welded to the post.
Patent GB-257839-A (GB)
Title: Improvements in spinning machines
IPC: D01H3/06
Filed: 1926-03-18
Abstract: 257,839. Diehl, J. March 18, 1926. Stop - motions; tin rollers.- In a spinning- machine, means is provided for arresting the rotation of a spindle pulley if its driving cord is inadvertently crossed, for example on re-knotting the cord after breakage. Adjacent to the driving drum 13, Fig. 4, a bar 29 is positioned and is provided with downwardly-extending tongues 30 notched at 31, 32. The position of the bar 29 is adjustable, and it is set so that the knots 33 are just clear of the tongues 30 when the cords are open; but if a cord is inadvertently crossed, its knot 33 will be caught on the notch 31, as shown in broken lines in Fig. 2. The tin roller 13 is grooved at 14.
Patent GB-776748-A (GB)
Title: Improvements relating to high-voltage air-break circuit-breakers
Inventor: ROBERTS FREDERICK ARTHUR
IPC: H01H33/08
Filed: 1954-03-16
Abstract: 776,748. Gas-blast switches. REYROLLE & CO., Ltd., A. March 15, 1955 [March 16, 1954], No. 7576/54. Drawings to Specification. Class 38(5) The' Specification describes the matter appearing in Figs. 2À4 of Specification 776,747, but the claims differ.
Patent GB-1099086-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D/
Filed: 1966-02-21
Abstract: The novel 2-methyl-6-(5-nitro-2-furyl)-3-thio-as-triazine-3, 5(4H)-dione of the formula <FORM:1099086/C2/1> is prepared by nitrating 2-methyl-6-(2-furyl)-3 -thio - as - triazine - 3,5(4H) - dione which is itself prepared by reacting 2-methylthiosemi-carbazide with 2-furoylformic acid.  Antibacterial compositions comprise the above novel compound together with a carrier.
Patent GB-234233-A (GB)
Title: Improvements in or relating to the manufacture of cement and mortar forming materials
IPC: C04B7/30
Filed: 1924-03-25
Abstract: 234,233. Tetens, O., and Rekord- Zement-Industrie Ges. March 25, 1924. Materials for making gas &c.-Mixtures containing siliceous calcareous, and bituminous ingredients are burned without addition of fuel at temperatures below the vitrifying temperature, and with recovery of oil, in order to obtain cement-forming materials. The raw materials may be a mixture of bituminous limestone and siliceous earth or clay, or a mixture of bituminous or oil-shale and limestone or lime and clay.
Patent GB-1481611-A (GB)
Title: Production of an article of foamed material
IPC: B29C44/56
Filed: 1975-02-04
Abstract: 1481611 Moulding coated foamed sheets VITA INTERNATIONAL Ltd 4 Feb 1975 [20 Feb 1974] 7653/74 Heading B5A A sheet 19 of foamed material, e.g. reconstituted polyether foam is moulded by coating the sheet with a thermoplastic powder 20, e.g. polythene, heating the powder to enable it to flow and placing the coated sheet between a pair of formers, e.g. 10, 11. The powder may be heated prior to or during application of the formers. The powder may be cooled and the coated sheet stored, e.g. in roll form, the coated sheet being reheated upon moulding. The coated sheet may be trimmed or cut to shape from a roll prior to moulding. Vehicle flooring, as shown, shock absorbing pads, vehicle headlinings and upholstery pads may be formed.
Patent GB-959595-A (GB)
Title: Hydrodynamic torque converter
Inventor: FINSTERWALDER ALBERT
IPC: F16H41/24
Filed: 1961-03-02
Abstract: 959,595. Hydraulic torque converters. KLOCKNER - HUMBOLDT - DEUTZ A.G. March 2, 1961, No. 7675/61. Heading F2C. An hydrodynamic torque converter comprises a feed pump 21, a throttling point 31 restricting the discharge from the converter so as to produce a pre-pressure therein, an air-tight housing 1, and a valve 25 for releasing the discharge from the converter to reduce the prepressure without emptying the converter. The converter has a pump 2 secured to a shaft 12 connected by gearing 10, 11 to an input shaft 9, a turbine 3 connected by gearing 13, 14 to an output shaft 15, and guide blading 4 journalled in the housing 1 and connected by gearing 5, 6 to a control guide blade system 7, a one-way clutch 8 being provided between the guide blading and the housing. The converter is supplied with pressure liquid from the pump 21 through a pipe 22 and cooler 23 and the liquid is discharged from the converter through a pipe 24 and the throttling point 31, which, as shown, may be in the valve 25, to a return line 30 leading to a sump in a housing 16. When the engine driving the shaft 9 is adjusted to the idling condition or when direct drive is engaged between the input and output shafts by operation of a lever 18 moving a coupling sleeve 17 into engagement with the gear 11 to by-pass the converter, manual or automatic, e.g. pneumatic, hydraulic or electrical, depression of a knob 27 on the valve 25 displaces a valve sleeve 26 from a seating 29 so that the discharge from the converter is practically unrestricted and the pressure in the converter reduced. The movement of the sleeve also connects a branch pipe 32 from the pipe 22 through a passage 35 to the return pipe 30 so that the pressure at the inlet to the converter is reduced. Pipe-lines may lead from the interior of the converter to lubricate the bearings in the gearing, and cleaning passages may be provided through which dirt and metal particles may be passed to the sump, one-way valves being provided in the pipe-lines and passages to maintain the air-tight condition of the housing 1.
Patent GB-663238-A (GB)
Title: New or improved suspension means for electric traction motors
IPC: B60K1/00
Filed: 1949-03-22
Abstract: 663,238. Mounting electric motors. HAIG, G. B., and HAIG, C. B. Aug. 31, 1950 [March 22, 1949], No. 7727/49. Class 79(iii) In an electrically propelled vehicle in which the motor is operatively connected to the axle and is arranged transverse thereto, the motor is supported solely by the axle. With such. an arrangement there is no relative movement between the axle and motor and wear on the transmission gear is minimized. As shown, the electric motor 5 and gear box 6 are at one end to the differential casing 3 carried by the axle. The motor is also supported from the axle lug 7 and rod 8 which is connected to the centre of an arch-shaped bridge piece 9, whose ends are secured by bolts 12 to the suspension springs 13 and axle 2 with the interposition of clamping members 14, 15, 16.
Patent GB-300858-A (GB)
Title: Air damper and purifier
IPC: F24D19/00
Filed: 1928-03-14
Abstract: 300,858. Drubba, O. K. L. March 14, 1928. Vaporizers, atmospheric; vaporizing by heat.-An air moistener and purifier comprises a porous body 3, Fig. 1, which may be perforated or slotted, dipping into liquid containers 1, 2 adjustable with regard to the body 3. Rods 4 traversing lugs 6, 7 on the containers and porous body have end nuts 4<a>, 4<b> by means of which the spacing of the containers can be varied; the latter may be supported on a heating-plate H. The porous body may consist of hinged elements and the containers adjusted by means of rotary screw-threaded rods. In another form the porous elements have step-like parts, and the lower ends have fabric strips dipping into the liquid, the level of which may be maintained by a floatcontrolled supply from an adjacent reservoir. The porous body may be formed of fabric or blotting- paper, and is supported on a frame 17, 17<a>, Fig. 10; the containers are adjusted by a rod 11 rotated by means of a hand-piece 11<a>. Another connecting means consist sof a rod adjustably secured within a tube. The frame may support a vessel 20, Fig. 16, from which antiseptic liquid is conveyed to the fabric 3 by porous material 21; the height of the vessel may be varied by adjusting the position of a rod mounted in sleeves 23, 24 connected to the frame. A connecting rod 40 is secured by hook-shaped screw bolts 41 to the containers which may be situated at different levels.
Patent GB-859865-A (GB)
Title: Improvements relating to shutter mechanisms
IPC: G03B9/58
Filed: 1959-03-06
Abstract: 859,865. Shutter mechanisms. INTERNATIONAL POLAROID CORPORATION. March 6, 1959 [March 27, 1958], No. 7893/59. Class 98(1) A shutter mechanism for exposing an aperture, in which an actuator is arranged to move a shutter means in one direction and then to release the shutter means so that the latter then executes a return movement for effecting exposure of the aperture, is provided with a retainer which prevents the return movement of the actuator after the release of the shutter means. The invention is described as applied to a pivoted blade photographic shutter shown in Fig. 1 in its next position. When actuating arm 44, projecting through camera housing 20, is depressed, element 40 rotates about pivot 42 against loading by spring 50, and finger 5b of this element slidably engages upstanding portion 33 of the shutter blade 24 thereby causing the blade to rotate about axis 28 in an anticlockwise direction until opening 26 in blade 24 has traversed camera aperture 22. Exposure during this-forward movement is prevented by shutter blind member 60 integral with element 40. When arm 44 is fully depressed, detent member 66 on arm 62 engages with upstanding detent portion 88 on arm 82 of spring biased crank 80, and the element 40 becomes locked. At the same time, portion 33 disengages from finger 56, and the shutter blade returns under loading by spring 34 for exposure. The duration of the exposure is controlled by a pneumatic bellows, shown generally at 70, which may have a manually or photoelectrically operated valve 74. Towards the end of the return movement of the shutter, pin 38 rigid with blade 24, engages arm 84 of crank 80 and forces latent portion 88 out of engagement with detent member 66, thus allowing element 40 to rotate towards its next position. Upon re-engagement of finger 56 with portion 33, resilient block 39 is displaced by arm 30 sufficiently to allow element 40 to complete its return movement. In a modification the shutter means may comprise two blades, the aperture 26 formed by the separation of these blades then being adjustable. Specification 857,410 is referred to.
Patent GB-231204-A (GB)
Title: Improvements in and relating to shock absorbers
IPC: F16F7/06
Filed: 1925-03-24
Abstract: 231,204. Beconnier, P. M. March 24, 1924, [Convention date]. Vibration-dampers. -A shock-absorbing and compensating apparatus for automobile vehicles and the like of the kind consisting of a. cylindrical casing in which an internal brake shoe is normally pressed against the braking surface of the casing by means of a helical spring, an extension of one end of the shoe engaging a lever fixed on an axial shaft which latter extends outside the casing and has integral therewith a lever that is actuated by the relative movement between the suspension spring and the body of the vehicle comprises a casing A, Fig. 1, secured to one of the relatively moving parts of the vehicle within which casing are arranged two brake shoes F. F<1> pivotally attached at one end to a double lever D operated by means of a spindle O and lever M secured to the other relatively moving part of the vehicle &c. The shoes are pressed outwards by springs H, H', and it is .stated that in one direction of motion the braking is caused by the action of the springs and also by the action of the double lever D on the shoes, the pressure of the shoes on the casing in the other direction being relieved by the reverse action of the double lever D. If desired, wedge-shaped segments may be interposed between the casing and the shoes, and the double lever may be secured to the shoes by inclined joints N, N'. Fig. 4, by contact of inclined faces, or by a cylindrical piece on the shoes engaging corresponding recesses in the double lever. In a double acting damper, the shoes are merely spring pressed.
Patent GB-1130565-A (GB)
Title: Atomic resonance apparatus
Inventor: DAVIDOVITS PAUL
IPC: H01S1/06
Filed: 1965-10-01
Abstract: 1,130,565. Automatic frequency control. VARIAN ASSOCIATES. 1 Oct., 1965 [5 Oct., 1964 (2)], No. 8034/68. Divided out of 1,130,563. Heading H3A. In an atomic resonance frequency standard the pumping source has a spectral profile comprising a pair of resonance lines and the ratio of intensities of the lines of the pair of lines is controlled proportionally so that changes in the total intensity of the pumping radiation produces no shift in the frequency of the standard. In the Rb<SP>87</SP> resonance frequency standard shown in Fig. 4, Rb<SP>87</SP> atoms in cavity resonator together with nitrogen buffer gas are pumped through glass wall 3 by two R6<SP>87</SP> lamps 42, 45. Lamp 42 has its parameters adjusted to produce a negative light shift, i.e. its wavelength is centred on the low frequency side of the atomic pumping transition, Fig. 3 (not shown), and lamp 45 is adjusted to produce a positive light shift, i.e. its wavelength is centred on the highfrequency side of the atomic pumping transition. Light from the lamps 42, 45 passes through variable transmission filters 43, 47 and Rb<SP>85</SP> filters 44, 48 respectively before being combined by half-silvered mirror 46 to form a single beam which passes through a variable transmission filter 49 into the cavity 1. In operation the ratio of intensities of the radiation from the lamps 42, 45 is adjusted by filters 43, 47 until a point is reached at which zero light shift is observed when the filter 49 is varied. The light shift is monitored continuously by applying 400 c.p.s. electrical signal from modulator 52 to Kerr cell filter 49 in order to amplitudemodulate the pumping beam. If there is a light shift the output maser frequency is frequency modulated at 400 c.p.s. which modulation is detected by F.M. detector 53 and converted to a low-frequency amplitude-modulated signal. This signal is compared with the modulation signal in phase detector 54 to produce a D.C. error signal which is fed back to one of the fillers 47 for controlling the ratio of the intensities of the light from lamps 42, 45 so as to maintain zero shift. The light beams may not be superimposed but may be applied to the cavity from opposite sides.
Patent GB-124107-A (GB)
Title: An Improvement in Collapsible or Lattice Gates, Shutters, Window Guards or the like.
Inventor: RAXWORTHY RICHARD EDWIN
IPC: E06B3/48
Filed: 1918-05-14
Abstract: 124,107. Raxworthy, R. E. May 14, 1918. Collapsible fencing and guards.-Relates to the class of lattice-work collapsing gates and barriers, of the usual lazy-tongs construction, that have attached to the vertical pickets C of the gate vertical solid panels A hinged together at their adjacent edges, of which only the alternate hinges are secured to the pickets, in such a manner that intervening open spaces are avoided when the gate is extended by expansion of the lazy-tongs members D, and that the panels fold together in opposite .directions face to face and back to back when the gate is collapsed. According to the invention, each picket carries a single vertical hinge pin B<1>, supported by end and intermediate brackets as convenient, around which take, to form the hinge joint, members alternately from the right and left panels contacting at the joint.
Patent GB-840489-A (GB)
Title: Reclining chairs
IPC: A47C1/0355
Filed: 1958-03-13
Abstract: 840,489. Seats. LORENZ, A. March 13, 1958 [March 21, 1957], No. 8057/58. Class 52(2). In a reclining chair having a seat 4 and backrest 5 swingably mounted on a support 1, the seat and back-rest move as one unit to a tilted position and then they move to a reclining position with relative movement between them, Fig. 3. As shown in Figs. 1 & 3. back-rest 5 is pivoted at 11 to the upper arm of a lever 9 pivoted to the support at 10. The back-rest is also pivoted at 8 to an arm 7 rigid with the seat. Relative rotation of the back-rest and seat is prevented by a link 12 pivoted at 11, 13 to these parts respectively. Pivot 13 consists of the pin 13 received in the upright arm 15 of L-shaped slot in link 12. On pressure against the back-rest, pin 13 remains in slot arm 15 and the seat and back-rest tilt as a unit about pivot 10. Projection 17 on link 12 then abuts pivot 10 so that the link is lifted to bring pin 13 into the long arm 14 of the slot in the link. During further tilting the pin 13 rides in slot arm 14 to allow relative rotation of the back-rest and the seat. A spring 16 urges pin 13 into slot arm 15. Movement of the seat 4 is controlled by the engagement with pins 18 on the support of slots 19 formed in blocks 20 carried by the seat. A leg rest 6, swingably mounted on pins 18 by links 22 is projected by a link 23, the rear end of which is pivoted at 24 to the lower arm of lever 9. In modifications, the link 12 with its pin and slot pivot is replaced by a knuckle joint the parts of which are held in alignment by spring means and which is broken either upwards or downwards by engagement with an abutment as the seat and back-rest move beyond the tilted position. In these modifications, the movement of the seat is controlled by a link pivoted at its upper end to the support and at its lower end to the seat.