baber/WOPTO huggingface dataset:
Patent GB-356020-A (GB)
Title: Process for the catalytic conversion of nopinene into pinene
IPC: C07C5/25
Filed: 1930-10-24
Abstract: Pinene is prepared by heating nopinene, or oils containing substantial quantities of nopinene, in the presence of catalysts comprising inert substances of porous structure, e.g. porous pot, the artificial zeolite known under the registered Trade Mark of "Permutit," bleaching earths, fuller's earth, and similar porous substances which contain silicic acid in hydrated form.  The activity of the catalysts may be increased by treatment, if desired after mechanical disintegration, with water or acids or both and then drying.  Examples are given.  The prior use as catalysts of a weak organic acid such as abietic acid or of a strong phenolic compound such as trichlorophenol is referred to.
Patent GB-287244-A (GB)
Title: Improvements in or relating to fountains, humidifying devices, air purifying devices and the like
IPC: B05B17/08
Filed: 1926-12-18
Abstract: 287,244. Murray, G., and Simpkins, V. O. Dec. 18, 1926. Direct gas-pressure apparatus, non automatic. - In apparatus for automatically discharging liquid from a chamber, applicable to fountains, air purifying devices, humidifying devices, &c. gas obtained from a pressure cylinder, by chemical action, or electrolysis, is continually admitted to the chamber over a period, during which a volume of liquid several times the volume of the chamber is discharged. The form shown in Fig. 4 for continuous discharge, comprises a chamber 2, and a gas lift pipe 17 extending into a chamber 18, provided with a delivery pipe 3 and with a tube 19 for releasing excess gas pressure. In other forms wherein the discharge is intermittent, float valves or other means are provided to vent the gas from the discharged. chamber so as to permit recharging with liquid. In the form shown in Fig. 1, the gas is vented through the discharge pipe 3, so that the chamber 2 is recharged from the basin 1 through pipes 5 and 9, the latter being provided with a hydrostatic seal, which prevents entry of liquid, while gas pressure exists in the chamber. The lower end of the pipe 3 depends into a compartment 8 connected to the surrounding part of the chamber by a siphon 10. In another form, the inlet pipe 9 has a non-return valve. 13, Fig. 3, and the gas is generated chemically by means including a cylindrical or other tablet 15 waxed all over except on one or more faces 16 so that the suction proceeds at a constant rate.
Patent GB-1234988-A (GB)
Title: Improvements in or relating to unitary needle bearings
IPC: F16C19/46
Filed: 1968-07-05
Abstract: 1,234,988. Needle roller bearing. NADELLA, and A. PITNER. 5 July, 1968 [6 July, 1967], No. 32210/68. Heading F2A. A shaft 1 is fixed axially in a needle roller bearing by means of a radial face 4 carried by one of the raceways 6 acting as an axial abutment in one direction for a radial face 2a carried by the shaft (either directly or through interposed elements, e.g. the needles) and in the other direction by means of a washer 2 held stationary relative to one of the races arranged between a radial face 2b of the shaft and the radial face of a bore in which the bearing raceway is received. In one embodiment (Fig. 1), the shaft 1 is provided with a shoulder having a face 2a which abuts one end of the needles 3 which are axially retained at their other end by a radial flange 4 formed on the outer race 6 which is located in the bore 7 of, for example, a pulley or gear-wheel 8. One end of the bore is provided with a radial face 9 against which abuts a washer 11 whose other face 11b bears against the face 2b. The washer 11 is prevented from rotating by tabs 12 penetrating the bore 7. In alternative embodiments a radial face on the shaft bears directly on the radial face carried by the raceway (Figs. 2 and 5, not shown).
Patent GB-272782-A (GB)
Title: Improvements relating to electric switches for valve operating mechanism
IPC: H01H3/04
Filed: 1926-12-20
Abstract: 272,782. Dale, W. B., Hopkinson, R. A., and Hopkinsons, Ltd. Dec. 20, 1926. Controllers, handles for. - In valve-operating mechanism of the type in which an electric motor is employed in conjunction with clutch devices and a distant control switch, the handle a of the switch is caused to move in a plane interrupted by a stop f , whereby a pause in the movement of the handle from forward to reverse position is necessitated. One end of the handle co-operates with a rib c which has a gap to permit sufficient vertical movement of the other end of the handle to enable it to be moved past the stop f. The handle is bifurcated, as shown, for engagement with the stop and can be locked in neutral position by means of a padlock g.
Patent GB-1379846-A (GB)
Title: Gas diffusion electrode for electrochemical cells
IPC: H04H20/88
Filed: 1972-07-11
Abstract: 1379846 Gas diffusion electrodes LICENTIA PATENT-VERWALTUNGS GmbH 11 July 1972 [12 July 1971] 32390/72 Addition to 1317790 Heading H1B A gas diffusion electrode for a cell having an acid electrolyte comprises a steel sheet 2 of mesh construction and provided with apertures 3 the sheet being encased in foamed graphite frame 4 having a recess 5 to accommodate catalyst layer 6, frame 4 further having troughs 8, 9 formed therein to provide channels for circulating electrolyte and being coated with an insulating layer 10. A battery of cells using such electrodes may be assembled as shown with the frames 4 insulated from each other by the abutting regions of insulating layers 10 and connected in series, the long narrow channels 8, 9 providing a high ohmic path and preventing short-circuiting of the cells through the electrolyte. Electrolyte is circulated to chambers 13, 13<SP>1</SP> by means of inlet and outlet ducts 11, 12 formed by register. ing insulation-coated passages through frames 4. Chambers 15, 15<SP>1</SP> are gas chambers.
Patent GB-413181-A (GB)
Title: Improvements relating to striking surfaces for use in connection with pocket and other lighters
IPC: F23Q2/46
Filed: 1933-11-21
Abstract: 413,181. Frictional igniters. LEE, S. S., 63, Burnley Road, Brierfield, Lancashire. Nov. 21, 1933, No. 32414. [Class 75 (iii).] A friction-wheel is formed with the points of some or all of the teeth at different radial distances from the axis of rotation, which maybe concentric or eccentric ; and, in a straight friction member, the teeth are arranged in groups at different heights, the points of the teeth in each group being on the same level. As shown, the teeth of the wheel A may be arranged in groups, the teeth D, D<1>, D<2> or d-d<4> of each group describing concentric circles of gradually increasing radius. Alternatively, the points of the teeth in each group may be at the same radial distance from the axis of rotation. A wheel with the usual teeth may be rotatable about an eccentric axis.
Patent GB-213309-A (GB)
Title: Improvements in and relating to radio signalling systems and apparatus therefor
IPC: H03J3/06
Filed: 1922-11-27
Abstract: 213,309. Carpenter, R. E. H. Nov. 27, 1922. Condensers.-In a valve circuit for receiving wireless signals in which the tuning elements are mechanically coupled together and arranged so as to maintain a constant degree of retroaction over a wide range of tuning, the plates of the anode condenser are specially shaped for this purpose, the necessary design or outline being derived from preliminary experiments carried out upon an aerial of given inductance and capacity.
Patent GB-1496028-A (GB)
Title: Method and apparatus for monitoring the operation of open-end spinning machines
IPC: B65H63/06
Filed: 1975-08-04
Abstract: 1496028 Spinning yarns ZINSER TEXTILMASCHINEN GmbH 4 Aug 1975 [3 Aug 1974] 32435/75 Heading D1F The operation of an open-end spinning machine each rotor of which has a fibre collecting groove within which a yarn is twisted and whence the yarn is withdrawn, is monitored, particularly to detect and assess periodic yarn faults e.g. changes in fibre mass across the yarn cross-section occuring along the length thereof, by establishing a predetermined amplitude for a characteristic parameter associated with the withdrawn yarn; establishing a predetermined occurence frequency level of the characteristic parameter amplitude from at least one known rotor parameter e.g. groove circumference; continuously measuring the amplitude of the characteristic parameter of the withdrawn yarn from each rotor; detecting a periodic occurence of the amplitude of the characteristic parameter (such amplitude having a frequency which corresponds to the predetermined frequency level); comparing measured and predetermined values of amplitude for corresponding occurence frequencies and producing an error signal when the former exceeds the latter. The signal may be transmitted to, and initiate operation of a servomechanism to control correctively, and without interruption, the operation of the machine. Faulty yarn may be so directed that it is collected on a waste take-up or bobbin until the fault(s) is/are remedied.
Patent GB-1452486-A (GB)
Title: Hydraulic fluid flow control valve
IPC: F15B11/02
Filed: 1973-07-19
Abstract: 1452486 Valves CROSS MFG INC 19 July 1973 [19 July 1972] 32494/73 Heading F2V [Also in Division G3] The fluid-pressure forces opposing operation of an open-centre spool 66a, 66b or 66c are reduced by throttling the flow downstream of the spool with a valve 104 which tends to close the open-centre passage 48, 72 against the resistance of a spring 90 in response to an increase in the pressure difference across the actuated spool. The pressure upstream of the latter is applied through a passage 102 and ports 100 to a chamber 98 while the downstream pressure is applied through an aperture 94 to a chamber 92. The pressure drop across the spool 66a, for example, and hence the fluid forces opposing its movement as it closes the open centre passage are thus reduced. Each spool is adapted to connect work ports leading to a ram, such as 60a, to a passage (50) Fig. 2 (not shown) receiving fluid from an inlet 36 through check valves (52a) and to a return passage 30, 32 leading to an outlet 38. The opposite sides of the ram are interconnected by a check-valve (144) Fig. 2 (not shown) to prevent cavitation when the ram is driven by its load. A pilot-operated relief valve 84 limits inlet pressure to the spools. Reference has been directed by the comptroller to Specification 1388526.
Patent GB-642387-A (GB)
Title: Improvements in or relating to scaffolding
Inventor: HAWES ALBERT HENRY
IPC: E04G1/14
Filed: 1946-09-18
Abstract: 642,387. Scaffolding. KWIKFORM, Ltd. Sept. 18, 1946, No. 32529/47. Divided out of 642,367. [Class 20(ii)] A scaffold frame unit comprises two vertical tubular members 21, 22 rigidly and permanently connected together by a horizontal tubular member 23 which is adapted to engage and support a staging or platform extending transversely of the frame unit, and a pair of clamping devices 25 secured permanently to the frame unit and adapted to secure it to tubular ledges 29, which support putlogs 46 and which are at a lower level than the horizontal member 23, which member 23 is characterized in that its diameter is less than that of the ledgers 29, each clamping device 25 being adapted to secure the ledgers so that they are spaced slightly below the horizontal member 23 so that the latter can support the staging or platform at the same level as the putlogs 46 support it while being of less diameter than the putlogs. Each clamping device 25 comprises a bracket 26 at the junction of the members 21, or 22, and 23 and secured permanently at both ends to both members or at one end only to one member and a threaded socket 43 for a clamping screw 31 whose inner end is rotatably connected to a pressure plate 32 curved to engage the ledger 29 and having spaced ears 33 which engage both sides of the bracket 26 to prevent rotation. Where one end only of the bracket 26 is fixed to the frame, Fig. 4, the ledger may be inserted in the clamp by a movement transverse to its length. The horizontal member 23 is of smaller diameter than the vertical members of the frame and therefore, if the putlogs 46 are the same in diameter as the vertical members, to ensure proper clamping of the ledgers a distance piece 45 is welded underneath the horizontal member 23. The arrangement is then such that the upper surface of a putlog 46 laid across the ledgers 29, Fig. 7, will be level with the upper surface of the members 23 to provide a level support for the battens 24. The frame unit has oblique bracing members between the bottoms of the vertical members and the middle of the horizontal member, or a pair of vertically spaced horizontal bracing members, or another horizontal member at the bottom with clamping devices at its junctions with the vertical members. Specifications 586,366, 642,366, 642,367, 642,386 and 642,388 are referred to.
Patent GB-805525-A (GB)
Title: A process for improving the properties of polyethylene terephthalate threads and fibres and textile fabrics manufactured therefrom
IPC: D06M13/08
Filed: 1956-10-26
Abstract: The properties of polyethylene terephthalate textile materials are improved by treatment for a short time, preferably up to ten minutes, with a chlorinated aliphatic hydrocarbon which contains at least one hydrogen atom attached to a carbon atom, at temperatures below 120 DEG  C.  The material may be in the form of threads, fibres or fabric and the chlorinated aliphatic hydrocarbon may be chloroform, trichloroethylene, dichlorobutane, tetrachlorobutane, s-dichloroethylene, 1 : 2-dichloroethane, methylene chloride, or pentachloroethane.  Treatment at 60-80 DEG  C. is preferred, 2-6 minutes being generally sufficient under these conditions.  It is believed that cyclic trimeric glycol terephthalates contained in the fibres are extracted by the chlorinated hydrocarbons.ALSO:The properties of polyethylene terephthalate textile materials are improved by treatment for a short time, preferably up to ten minutes, with a chlorinated aliphatic hydrocarbon which contains at least one hydrogen atom attached to a carbon atom, at temperatures below 120 DEG  C.  The material may be in the form of threads, fibres a fabric and the chlorinated aliphatic hydrocarbon may be chloroform, trichloroethylene, dichlorobutane, tetrachlorobutane, S-dichloroethylene, 1 : 2-dichloroethane, methylene chloride or pentachloroethane.  Strong shrinkage is caused by the treatment, and hence improved resistance to deformation, while the fibres are simultaneously stiffened and roughened.  Elongation is improved, and the fibres become crimped.  Treatment at 60-80 DEG  C. is preferred, 2-6 mins. being generally sufficient under these conditions.  It is believed that cyclic trimeric glycol terephthalates contained in the fibres are extracted by the chlorinated hydrocarbons.
Patent GB-189797-A (GB)
Title: Mechanism to facilitate the movements of ships
IPC: B63H25/42
Filed: 1922-11-30
Abstract: 189,797. Hoesse, L. Dec. 2, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Steering and manoeuvring by screwpropellers.-For manoeuvring ships, electrically driven reversible propellers are attached to a transverse shaft situated at the bow of the ship, the electrical gear being controlled from the bridge. Screws 1 are placed on a transverse shaft near the bow and are protected by buffers 2. The screws are actuated by an electric motor 8 through a clutch and reverse gear 6. Power for the motor 8 is obtained from an accumulator 4, the control being on the bridge 7.
Patent GB-708239-A (GB)
Title: Improvements in or relating to self-wringing mops
IPC: A47L13/146
Filed: 1952-12-24
Abstract: 708,239. Mops; squeegees. CROWE, G.E.W. Dec. 24, 1952, No. 32760/52. Class 19 In a self-wringing mop a pad 10 of sponge material is mounted on a flexible backing 11, e.g. canvas, provided-with means for securing it detachably to two rigid supporting plates 15, 16 between which the pad may be folded and squeezed. The securing means comprises bolts 13, 14, one pair of which, 13, serves also to attach the pad to a backing plate 26 carrying a handle socket 32. An arm 35 for use in squeezing the pad, is riveted to the plate 16 and when not in use, is held by a clip 37. A channel 17, is formed in the outer edge of the plate 15 which, together with a similarly-formed top plate 19 holds a squeegee 24. Reference has been directed by the Comptroller to Specifications 697,400 and 709,776.
Patent GB-487577-A (GB)
Title: Improved apparatus for relieving starting torque of heavey rotative machinery
IPC: F02N15/00
Filed: 1937-11-27
Abstract: 487,577. Lubricating bearings. KIRKHAM, A. R. Nov. 27, 1937, No. 32776. [Classes 12 (i) and 12 (iii)] A unit for reducing starting torque of heavy rotative machines comprises one or more pumps for pumping oil into the machinery bearings 'to levitate the shaft prior to the commencement of its rotation together with means to indicate visibly when the levitation has been accomplished. As shown, pump plungers 12 are actuated by eccentrics 21 on a shaft 20 driven by hand or otherwise. Each pump cylinder has a pair of suction valves 13, 14, and a pair of delivery valves 16, 17, and the delivery conduit 22 is connected by a pipe 33 to a recess 24 formed in the portion of a bearing 23 at the area of greatest loading. A pressure gauge 31 is fitted to each conduit 22. When the pump is operated to force oil into the bearing recess 24 the oil pressure rises. When the gauges 31 register a steady pressure this indicates that the shaft is levitated and the machine may then be started up. Reference has been directed by the Comptroller to Specifications 10409/96, 3438/02, [both in Class 12], 161,513, [Class 12 (iii)], 186,595, [Class 12 (i)], and 379,062.
Patent GB-652986-A (GB)
Title: Improvements in or relating to rigid pipe unions
IPC: F16L37/14
Filed: 1948-12-20
Abstract: 652,986. Pipe joints. MOTOR-COLUMBUS AKT.-GES. FUR ELEKTRISCHE UNTERNEHMUNGEN. Dec. 20, 1948, No. 32835. Convention date, Dec. 18, 1947. [Class 99(i)] In joints for vertical steel masts, metal rings c, d, which are secured in an undisplaceable manner as by welding, engage in grooves g, h, of the pipe ends a, b or the sleeve m which overlaps the ends and may be in two halves. The ends may be thickened. In modifications (1) the pipes are of different diameter and resilient split rings engage in oppositely disposed grooves, Fig. 5 (not shown) (2) the grooves are formed by rolling Fig. 6 (not shown), and (3) the rings are formed by a rod of copper or soft iron inserted transversely through an aperture of the sleeve and into oppositely disposed grooves; alternatively, the rings comprise blocks or balls connected together in a chain-like manner.
Patent GB-471102-A (GB)
Title: Optical system for colour film cameras
IPC: G02B27/14
Filed: 1935-11-27
Abstract: 471,102. Colour kinematography. LUSCHNATH, E., GRUNE, K., KANTUREK, 0., and GLUCK, V. Nov. 27, 1935, No. 32921. [Classes 97 (i) and 98 (ii)] A light-dividing system for colour kinematography consists of two right-angled reflecting prisms b, b<1>, Fig. 1, placed behind the objective a with their entrance faces d, d<1> at right-angles to the axis of the objective and each covering nearly half the field. The exit surfaces f, f<1> face inwards and are parallel to each other and spaced apart to receive a film or films h between them. The film may be guided by a gate or by the prisms themselves. To assist in focusing the images two further prisms c, c<1>, Fig. 2, are provided, these being similar to the prisms b, b<1> but having their exit surfaces k, k<1 >facing outwards so as to form images on screens l, l<1>, the light paths through the prisms c, c<1> to the screens being equal to those through the prisms b, bl to the film. The images on the screens are observed in mirrors m, m<1>. The prisms b, b<1>, c, cl and the screens and mirrors are rigidly mounted on a common support which may be slidable so as to bring either the prisms b, bl or the prisms c, c<1> into position behind the objective.
Patent GB-1281429-A (GB)
Title: A lawn mower
IPC: A01D34/63
Filed: 1970-07-07
Abstract: 1281429 Lawn mowers WOLF-GERATE GmbH 7 July 1970 [15 July 1969] 32927/70 Heading A1F A lawnmower has an electric motor 20 whose stator 21 is rotatably journalled in chassis 1 by thrust bearing means 23 and bearings 20' and carries knife 5 by means of hollow shaft 7. The rotor 22 of the motor 20 is rotatably carried in the stator 21 by bearings 24, 25 and its lower end is attached, by means of shaft 6, to knife 4 which rotates oppositely to knife 5. The knives are preferably disc-shaped and pressed against each other in a resilient manner such that when they are driven in opposite directions as shown f 1 , f 2  (Fig. 4) the teeth 10, 11 sharpen each other. The teeth may be as shown in Fig. 4 or may be simple projections without the secondary teeth. The teeth on the lower disc or knife 4 are longer than those on knife 5. Current is supplied to the motor via slip rings 26. A roller element bearing 9 can be provided between the knives.
Patent GB-1110802-A (GB)
Title: Process for the manufacture of gaseous formaldehyde
IPC: C07C47/04
Filed: 1965-08-02
Abstract: Gaseous formaldehyde is prepared by thermal decomposition of a semi-formal obtained by absorbing formaldehyde in a polyhydric alcohol, whereby in step (1) a moist air-formaldehyde gaseous mixture is countercurrently contacted at 80-130 DEG  C. with a circulating formaldehyde-alcohol mixture consisting of less than 5% by weight water, 30-60% by weight formaldehyde and the remainder polyhydric alcohol, passing a part of said circulating mixture to a thermal decomposition stage; in step (2) countercurrently contacting the effluent gaseous mixture from step (1) at 40-80 DEG  C. with a circulating formaldehyde-polyhydric alcohol mixture containing more than 5% by weight water and in step (3) countercurrently contacting the effluent gaseous mixture from step (2) with water at 35-55 DEG C. to absorb at least some of the residual formaldehyde gas, feeding a part of the formaldehyde-alcohol mixture in step (2) to the circulating mixture in step (1) and feeding the aqueous formaldehyde from step (3) and the liquid residue from the thermal decomposition to the circulating mixture in step (1).  If dry gaseous formaldehyde is required, the formaldehyde-alcohol mixture from step (1) should be dried before it is passed to the thermal decomposition stage, e.g. using solid drying agents or dry air.  The circulating mixture in step (1) preferably contains less than 3% water. The process is illustrated by reference to a flow sheet drawing (not shown).
Patent GB-1147935-A (GB)
Title: Dyeing and printing synthetic polyamide textile material, the textile material so dyed and printed and dyes for the purpose
Inventor: SEEFELDER MATTHIAS
IPC: C09B35/023
Filed: 1966-07-22
Abstract: 1,147,935. Dyeing polyamides. BADISCHE ANILIN-& SODA-FABRIK A.G. 22 July, 1966 [23 July, 1965; 16 June, 1966], No. 33011/66. Heading D1B. Linear synthetic polyamide materials are dyed or printed with dis- and tris-azo dyes of general formula in which A is the radical of salicylic or o- or mcresotinic acid and X is a covalent bond or one of the radicals -S-, -SO 2 -., -CH=CH-, -CH 2 -, -NH-, -CO-, or -N=N-, and in which the benzene rings I and II may bear non-ionic substituents. Dyeing is preferably effected in a weakly alkaline to strongly acid liquor at 90-100‹C. Yellow to red shades are obtained.