baber/WOPTO huggingface dataset:
Patent GB-260973-A (GB)
IPC: B65D83/00
Filed: 1926-10-20
Abstract: 260,973. Leisse, M. Nov. 4, 1925, [Convention date]. Containers, collapsable.-A container for plastic substances consists of a, lower rigid part 10, and an upper wall of changeable, shape, which is caused by pressure in determined position to conform to the shape of the rigid part. The upper wall consists of a. central arched pressureplate 8, to which annular parts 12, 13 are connected by hinges 2, 3, which may be formed by scoring the material. The upper wall is connected by hinges 1 to the lower part 10 of the container. The annular parts 12, 13 have radial depressions or passages to equalize the pressure. The plate 8 has a central opening to receive a conical closing-member 4, which is pressed upwards by a spring 7, and can be depressed by means of a projection 6 to permit the exit of the contents of the container.
Patent GB-279426-A (GB)
Title: Improvements in the rotors of centrifugal fans
IPC: F04D29/30
Filed: 1927-10-04
Abstract: 279,426. Akt.-Ges. Brown, Boveri, et Cie. Oct. 26, 1926, [Convention date]. Helico centrifugal fans; impeller blades.-The blades of a fan rotor having axial inlet and radial discharge are helical with the piston of the helix increasing in the direction of the axial flow. The generating line is always radial and its outer extremity moves along a curve such as A<5>. E<5>. A secondary axial outlet may be provided, or, the fan may have axial admission on both sides.
Patent GB-1253981-A (GB)
Title: A releasable pipe coupling
Inventor: GOWARD STANLEY HAROLD
IPC: F16L37/00
Filed: 1968-05-31
Abstract: 1,253,981. Pipe couplings. BTR INDUSTRIES Ltd. 11 March, 1969 [31 May, 1968], No. 26255/68. Addition to 1,066,936. Heading F2G. In a coupling according to the parent Specification and comprising spigot and socket members having, respectively, registering external and internal circumferential grooves and wherein the arms of a removable U-shaped member 43 are inserted through any two adjacent radial holes 19 in the socket member and which break into the groove in the socket, each hole is conical or frusto-conical in section axially of the hole the larger diameter portion thereof being nearer the outside of the pocket. As shown, one or both arms may be provided with one or more notches 44 to engage the inner edge or edges of the holes.
Patent GB-628770-A (GB)
Title: Improvements in and relating to taps for casks and barrels
IPC: B67D3/04
Filed: 1947-09-29
Abstract: 628,770. Tapping casks. HOLBROOKS, Ltd., and RATCLIFF, A. C. Sept. 29, 1947, No. 26296. [Class 21] [Also in Group XXIX] A cask tap comprises a sleeve 1 adapted to slide in the bung 11 and having a skirted cap 5 held against its inner end by a spring 10, the cap having a resilient disc 7 forming a closure. In tapping the cask the sleeve is pulled outwardly so that the skirt of the cap 5 abuts against a loose washer 13 and the bung 11 and raises the disc 7 from the end of the sleeve. The cask contents pass through slots in the skirt into the sleeve and out through an opening 3. A stop 4 normally limits the outward movement of the sleeve, but a stronger pull may be used to remove the bung and tap from the cask. A handle 2 is secured to the closed outer end of the sleeve.
Patent GB-1171445-A (GB)
Title: Improvements in and relating to the Correction of Optical Systems
IPC: G02B27/00
Filed: 1966-10-21
Abstract: 1,171,445. Correcting aberrations by holography. BATTELLE DEVELOPMENT CORP. Oct.21, 1966 [Oct.23, 1965], No.26296/69. Divided out of 1,125,795. Addition to 1,104, 041. Headings G2C and G2J. In producing a hologram for use in correcting the aberrations of an optical system 249, Fig.1, the photographic plate 257 is placed in a selected position 251<SP>1</SP> and the correction plane 251 is projected thereto by a well corrected system 255. As shown beam 233 from laser 235 is forcussed by lens 231 on to a pinhole 239 and the divergent beam therefrom is divided into a reference beam, which is focussed by lens 259 and deflected by mirror 261 on to the plane 251<SP>1</SP>, and an object bearing beam 245 which is deflected by mirrors 241, 243 and focussed by lens 247 to a point corresponding to the front focal point of the lens 249 to be corrected. By projecting the plane 251 to position 251', instead of forming the hologram at correction plane 251, the angle between the reference and object-bearing beams can be kept smaller. In use, the hologram is placed a distance d 1  from the lens 249 to correct its aberrations. For use in white light a second hologram is made in a similar manner to the first, except that a high quality lens is substituted for lens 249. The second hologram thus has the same spatial frequency as the first hologram but is not modulated by the errors of lens 249. In use, the second hologram (265, Fig. 2, not shown), is placed to receive light (269) from the object and the red part of the spectrum (273) is diffracted more than the blue (271) so that on arrival at the first hologram (276), modulated by the errors of the system (269<SP>1</SP>) the resultant diffraction corrects the previous dispersion. Alternatively, Fig.3 (not shown) a prism (279) may be used instead of the second hologram and, to eliminate any aberrations caused thereby, it may be included in the system of Fig. 1, when the aberration correcting hologram is formed.
Patent GB-359130-A (GB)
Title: New or improved smoke consuming apparatus for boilers
IPC: F23L9/00
Filed: 1930-09-04
Abstract: 359,130. Consuming smoke. WOOD, G. R., 25, Eastby Road, Bradford, Yorkshire, and DODWELL, A. E., 54, Rectory Road, Barnes, London. Sept. 4, 1930, No. 26383. [Class 51 (i).] Apparatus for consuming smoke in boiler furnaces comprises an annular chamber 3 arranged in the furnace flue 1 behind the firebridge 2 and adapted to deliver air or a mixture of air and steam tangentially to the stream of gases passing through the central aperture of the chamber prior to impinging upon incandescent surfaces provided by a pillar or pillars 9. The chamber 3 is preferably divided by a partition 4 into front and rear compartments 5, 6 supplied separately with air from tubes 10 which may be provided with steam injectors. The air from the compartment 5 enters the flue through apertures 7 while that from the compartment 6 enters through tangential apertures 8. Air may be supplied to the pillar 9 and delivered through perforations therein in which case the initial supply of air through the apertures 7 may be dispensed with. Instead of the pillar 9 a perforated hollow cone may be employed. The surfaces of the annular chamber and pillars or cone may be provided with protuberances.
Patent GB-362452-A (GB)
Title: Improvements in duplex telegraphy
IPC: H04L5/14
Filed: 1930-09-04
Abstract: 362,452. Duplex telegraphy. CREED & CO., Ltd. and GRIFFITH, R. G., Telegraph Works, Croydon, Surrey. Sept. 4, 1930, No. 26394. [Class 40 (iii).] In double - current duplex telegraph systems, particularly those of the start-stop type, waste of current is avoided by the use of a sound-reciever switch 2 operated, for instance, by a cam on the usual cam sleeve of a start-stop transmitter. This switch disconnects the apex A of the bridge from the transmitter B during idle periods, and connects it to earth through a resistance E which prevents disturbance of the balance. In a modification, Figs. 3 and 4 (not shown), the apex A is permanently earthed through the armature of a generator whose field circuit is fed by the transmitter or, during idle periods, is short-circuited by the send-receiver switch 2.
Patent GB-190831-A (GB)
Title: Improvements relating to fastenings for soft collars
IPC: A41B3/08
Filed: 1921-10-06
Abstract: 190,831. Weir, C. Oct. 6, 1921. Soft - collar fasteners; straps and bands.- A fastener for the front edges of soft collars comprises an adjustable elastic strip A attached to press studs H. The press stud base may be made in two parts with the elastic band gripped between them.
Patent GB-918823-A (GB)
Title: A process for the preparation of organosilicon condensation products
IPC: C08L83/04
Filed: 1961-07-21
Abstract: The invention comprises the use of certain amine salts for catalysing the co-condensation of Si-bonded -OH radicals with Si-bonded -OR1 radicals of an organosilicon reactant to form siloxane linkages and produce HOR1 as a by-product.  The organosilicon reactant may be a silane (including silicate), siloxane, silcarbane or mixture thereof, in which R1 is a monovalent hydrocarbon radical (saturated or unsaturated) with or without one or more functions selected from ether linkages, aromatic halogen atoms, nitrile groups, hydroxyl groups and aliphatic fluorine atoms (separated from Si by at least 3 C atoms), there being less than 11 total C and ethereal oxygen atoms in each R1, the remaining Si valencies being satisfied by oxygen atoms or hydrocarbon radicals with or without the above functions. The catalysts used, which must be compatible with the organo-silicon reactant, are salts of a basic amino compound, viz. ammonia, an organic amine or a silylorganic amine, and either (1) phosphoric acid or (2) a carboxylic acid, the total number of C atoms in the salts of (1) and (2) being at least 18 and at least 6 respectively.  Numerous examples of the organosilicon reactants and the catalysts are given. The reaction is effected by contacting the reactant with the catalyst in the presence or absence of solvents and additives, e.g. pigments, heat-stabilizers, and sun-screening agents.  If end-blocked polymers are desired an end-blocking reactant, e.g. a triorganosilanol, must be included in the reaction mixture.  In the preferred embodiment, two organosilicon compounds are used, one being a siloxane containing at least 2 Si-OH groups, the other being an organosilicon compound having at least 3 Si-OR1 radicals per molecule.  The amine salts can be prepared prior to their inclusion in the condensation system or they can be prepared in situ.  In typical examples (2) a mixture of a dimethylpolysiloxanol, ethylpolysilicate and n-hexylamine-2-ethylhexoate gelled in 30 minutes and cured in 24 hours to a rubber at room temperature; (4) a xylene solution of a copolymer composed of phenylmethyl-, dimethyl-, monomethyl- and monophenyl-siloxane units and containing Si-bonded -OH and -OC2H5 radicals, when mixed with n-hexylamine-2-ethylhexoate air-dried at room temperature within 24 hours.  Uses: For coating wood, metal, glass and ceramic surfaces; and for caulking.
Patent GB-820362-A (GB)
Title: Electrical contact
Inventor: LEECH ARTHUR SIDNEY
IPC: H01R12/72
Filed: 1955-09-16
Abstract: 820,362. Two-part couplings. ELLIOTT BROS. (LONDON) Ltd. Sept. 11, 1956 [Sept. 16, 1955], No. 26655/55. Class 38 (1). A socket contact is bent up from sheet metal to form a cylindrical terminal portion 6 and a pair of resilient contact arms 10 with inturned ends 11 and flexibly connected to portion 6 by intermediate portions 9, the adjacent end of portion 6 having surfaces 7 forming a constriction which prevents solder creeping from the portion 6. Fig. 8 shows an alternative form of contact in which only a single contact arm 10a is provided, the constriction being formed by a bent-in portion 25 of portion 6a. A similar form of contact is shown in Fig. 9 except that the intermediate portion 9b is bent over to lie adjacent the end of portion 6b and form the constriction. Several of the contacts shown in Fig. 2 may, as shown in Figs. 5 and 7, be mounted in an elongated, U-shaped, insulating body 15 to form a contact assembly. The portions 6 are passed through apertures 19 and the contacts are retained in position by overhanging shoulders 18 on the side walls of the body beneath which the arms 10 snap. Apertures 20 in the side walls enable a tool to be pressed against the arms 10 to disengage them from the shoulders 18 if it is desired to remove the contacts, or alternatively a stop-pin may be secured in a pair of opposed apertures 20 to serve as a locating device in preventing insertion of an incorrect plug. Another form of stop-pin is shown in Fig. 19, this type having a stem 38 for insertion through an aperture 19 being retained by bent-out wings formed by slitting the stem at 41 and which engage the underside of the body. Figs. 10 and 11 show another form of insulating body for use with contacts as shown in Figs. 8 and 9. In this case the apertures 19a are staggered and the single arms 10a of adjacent contacts engage opposite shoulders 18a on the side walls as shown. Ribs 27 between the contacts prevent them from rotating. Figs. 14 and 15 show how a contact assembly may be used with printed circuit panels. The projecting terminal stems 6c of the contacts, which in this construction are formed similarly to the stems of the stop-pins shown in Fig. 19, are inserted through apertures 5 in a panel 30 and soldered to printed conductors 31. A further panel 33 having printed contact portions 34a on opposite faces and a cut-away portion 36 for co-operation with a stop pin is then inserted into the body 15b so that the contact portions 34a engage the socket contacts.
Patent GB-678777-A (GB)
Title: Improvements in or relating to radio-frequency power amplifiers
IPC: H03F1/06
Filed: 1950-11-02
Abstract: 678,777. Valve amplifying circuits. WESTERN ELECTRIC CO., Inc. Nov. 2, 1950 [Nov. 2, 1949], No. 26727/50. Class 40 (vi). In a system for amplifying amplitudemodulated waves at high efficiency, a pair of valves are operated under conditions of saturation over part of the modulation cycle, the drive voltage differing in phase and being varied by feed-back between the outputs and input circuits. The increase of grid current with drive due to modulation peaks is arranged to augment the phase shift. Valves V1, V2, Fig. 7, feed a resistive load 11 over an inductor 12 and capacitor 13 of such values that a load of four times the optimum is reflected into the anode circuit of each valve whilst the drive is restricted to the region where the valves are unsaturated, and passing little or no grid current. The input is applied to the grids over phase-advancing and phase-retarding networks 3, 5 and 6, 8. When the drive is increased, the A.C. potentials on the grids increase but since the anode potentials have reached saturation, the capacity reflected back into the grid circuit of valve V1 decreases, causing the phase of the grid potential to advance further. In a similar manner, the phase of the signal applied to the grid of valve V2 is retarded to the same extent. The flow of grid current causes the grid-cathode resistance of both valves to fall, which increases the phase shift of the signals applied to the grids of the valves. The change in phase of the anode potential causes the load reflected into the anode circuit to fall, reaching the optimum value when the drive is increased to correspond to full modulation. The variable inductors 9, 10 are adjusted to values corresponding to under-neutralization and over-neutralization, respectively. In a modification, Fig. 8 (not shown), valve V2 alone is provided with a neutralizing inductor. In a further modification, Fig. 9 (not shown), neutralizing capacitors are used, fed from tapped anode inductors and ganged so that as one capacity increases, the other is reduced. Specifications 471,423 and 537,076 are referred to.
Patent GB-841321-A (GB)
Title: Improvements in or relating to tropane derivatives
Filed: 1956-08-31
Abstract: The invention comprises dl-3a -acetoxy-6-tropene and also a process for the preparation of D 6(7)-tropene-3-ol and its esters in which a 3 - acyloxy - 6 - sulphonyloxytropane or a 3-acyloxy - 6 - halogenotropane is heated with an anhydrous organic base, whereafter, if desired, the ester obtained is hydrolysed to give D 6(7) - tropene - 3 - ol.  The reaction with the base is preferably carried out at 150-200 DEG  C. in a nitrogen atmosphere. Starting materials prepared in examples are dl-3a -acetoxy - 6 - b  - p - toluenesulphonyloxytropane and dl - 3a  - acetoxy - 6b  - methanesulphonyloxytropane by the action of the corresponding sulphonyl chlorides on dl-3a -acetoxy-6b -hydroxytropane, and dl-3a -acetoxy-6b -bromotropane by the action of PBr3 on dl-3a -acetoxy-6b -hydroxytropane hydrobromide and also by the action of acetyl bromide on 3a ,6a -epoxytropane hydrobromide; dl - 3a  - acetoxy - 6 - tropene picrate is also prepared.
Patent GB-157579-A (GB)
Title: Improved protective device for safes strong rooms and the like
IPC: E05B65/00
Filed: 1919-10-30
Abstract: 157,579. Tann, J. L., and Tann, Ltd., J. Oct. 30, 1919. Locks, release by destruction of, preventing.- In means for preventing the opening of a safe door by destroying the lock with explosive or heat, an auxiliary locking arm 8 is connected to the lock casing B, and held in an inoperative position by a destructive series of links. A brittle metal cap 1 is fixed behind the keyhole by screws 2 and is connected by the brittle link 3 to a brittle link 3a at right-angles. The link 3<a> is connected to a strip 4 of fusible metal, having a cast iron tip 5 by which is is connected, by the adjustible screw 6 and socket 7, to the arm 8, pivoted at 9. If the safe lock is subjected to explosion, the cap 1 and link 3 are broken, if subjected to great heat, the strip 4 melts, and in both cases, the arm 8 is pulled down by gravity or the spring 10, into engagement with the arm C', on the movable bolt-strap C, preventing the release of the bolts.
Patent GB-886524-A (GB)
Title: Improvements relating to tunnel kilns
IPC: F27B9/30
Filed: 1959-08-05
Abstract: 886,524. Oil-fired tunnel kilns. ATON PLANUNGS - UND BAUGESELLSCHAFT FUR DIE KERAMISCHE INDUSTRIE. Aug. 5, 1959 [Aug. 6, 1958 ; July 23, 1959], No. 26748/59. Classes 51 (1) and 51 (2). In a tunnel kiln, particularly for firing ceramic articles, impulse burners 3 deliver oil and combustion air transversely of the kiln into combustion chambers 9 formed in the kiln cars. The combustion chambers are closed except for lateral openings for the admission of oil and air, and openings 11 in the upper wall for. combustion products. The burners 3 may be arranged to inject oil at an acute angle to the kiln axis, or the partitions between the chambers 9 may be inclined to the perpendicular to the kiln axis, so that the point of impact of the oil and hence the hottest part of the combustion chamber moves across the kiln cars as they progress through the furnace. Triangular inserts 22, 23, 24, Fig. 6, direct the gases through the holes in the kiln car platform, and the furnace atmosphere is recirculated in the preheating zone. The floor of the combustion chamber may be made triangular in section, Fig. 7. The partitions between the combustion chambers may be triangular in horizontal section, Fig. 8, or notches may be formed in the partition walls so that the intensity of heating varies across the kiln. The ends of the partitions may be cut away for the full height or part of the height of the chamber. The separate partitions may be replaced by a single zig-zag wall, Fig. 16, or, in a kiln fired from one side, tapered combustion recesses opening on one side of the kiln car may be used. Since the combustion chambers are separate, different atmospheres can be produced in different parts of the kiln, and articles of different dimensions can be fired simultaneously by varying the rate of travel of the cars through the kiln.
Patent GB-686970-A (GB)
Title: Improvements relating to louvre windows
IPC: E06B7/084
Filed: 1951-11-15
Abstract: 686,970. Louvre and window frames. GISSING PTY., Ltd., F. W. Nov. 15, 1951 [Sept. 3, 1951], No. 26753/51. Classes 20(iii) and 137 A stud member for supporting pivoted louvres 9 in a window opening comprises a metal support 11 having angle plates 15 longitudinally adjustable by screws 17 at each end for anchoring it between the upper and lower members 13, 14 of the window opening, and mullions 10 secured by screws 19 one on each side of the support 11 to pivotally receive slides 20 for the louvres 9. Beadings 12 cover the joints between the support 11 and the mullions 10. The louvres 9 are made of glass or other sheet material.
Patent GB-1379713-A (GB)
Title: Method of preparing photoconductive materials
IPC: H01L31/18
Filed: 1973-06-05
Abstract: 1379713 Photoconductors EASTMAN KODAK CO 5 June 1973 [5 June 1972] 26756/73 Heading H1K [Also in Division C7] Lead monoxide is R.F. sputtered from a lead monoxide source in an inert gas-oxygen mixture on to a support of, e.g. quartz, glass tin oxide- or gold-coated glass, Al or polyethylene terephthalate to form a photoconductive material. The lead monoxide may contain traces of Li, Sb, Tl, Bi, Alg and Sn. The coating may be heated to 150 to 500 C. and it may form a sandwich layer in a laminated device or it may be coated with other materials.
Patent GB-481204-A (GB)
Title: Improvements relating to the manufacture of taper metal tubes and rods or bars
IPC: B21C37/18
Filed: 1936-10-03
Abstract: 481,204. Drawing tubes &c. REIMANN, J. J., and REIMANN, W. Oct. 3, 1936, No. 26874. [Class 83 (iv)] A drawing-die for tapering, step-tapering, fluting, or ridging tubes or rods of round triangular hexagonal &c. sections is formed by a number of eccentric rotary segments, e.g. die rolls a all geared together by bevel gears and forming a pass which is gradually opened or closed as arranged for, to make the taper when the workpiece is drawn through or when the combined die is pulled over the workpieces. The segments a are intergeared together by integral or coupled bevel gears c rotated through a clutch l and worm gearing m, n as the die carriage is pulled over the work by a screw V whereby the simultaneous pulling of the worm wheel n over the helically grooved shaft O rotatates the wheel n and so varies the pass opening of the die. Balls q mounted between the worm wheel n and the helical grooves p in the shaft o transmit the longitudinal movement into rotary motion. In a modification the eccentric rotation of the die segments is obtained by a rack and pinion, the rack being moved longitudinally by roller thereon moving in a cam slot the angle of which is variable to vary the taper.