baber/WOPTO huggingface dataset:
Patent GB-168064-A (GB)
Title: An improved process for hardening and waterproofing wood
IPC: B27M1/02
Filed: 1921-08-18
Abstract: 168,064. Holzveredelung Ges. Aug. 18, 1920, [Convention date]. Hardening wood by compression.-Wood is hardened and waterproofed by heating it white in a moist condition to a temperature between 75‹ C. and 180‹ C., or treating it with a cellulose solvent, and compressing under a pressure of at least 200 atmospheres. Preferably the heat is applied gradually. The duration and intensity of the heating and compression vary according to the kind of wood. Air is excluded during the heating. Specifications 13821/97 and 3900/98 are referred to. Reference has been directed by the Comptroller to Specification 5973/96.
Patent GB-1180261-A (GB)
Title: System for Localizing Trains Along a Track
IPC: B61L3/00
Filed: 1967-05-11
Abstract: 1,180,261. Train control. THOMSON C.S.F. 11 May, 1967 [16 May, 1966], No. 22025/67. Heading B7N. [Also in Divisions HI and H4] In a train control arrangement each train carries a ranging system coupled to a dielectric waveguide extending along the track which determines its position relative to fixed beacons disposed along the track, its speed, and its position and speed with respect to a train in advance. The train 2 travels on an inverted T concrete track 2 and the vertical position ABCD of the track forms a dielectric waveguide for propagating a surface wave along the track. Train aerial 3 is coupled via directional coupler 6 with transmitter 7 which is frequency modulated by a triangular waveform developed in unit 10, and with receiver 8. Track beacons P, P + 1 &c. are tuned to retransmit received set frequency signals and these beacon signals are applied via band pass filters 11, 12 &c., tuned to the respective beacon frequencies, to unit 16 in which by reference to the modulating signal from unit 10 their respective propagation times can be determined and hence the position Za of the train. This signal is then used in unit 18 to determine the train speed. Signals from a train in advance are passed via filter 15 and mixed with the transmitted signal in unit 23 to produce a beat frequency signal indicative of the distance ahead Zr of the train in advance and from this the relative speeds Vr of the trains may be determined. The information obtained is displayed in unit 26.
Patent GB-278157-A (GB)
Title: Improvements in or relating to display devices
IPC: A47F7/28
Filed: 1926-09-07
Abstract: 278,157. Barnsley Canister & Engineering Co., Ltd., and Pickering, J. W. H. Sept. 7, 1926. Figures or models.-In display devices of the type comprising a series of elements a which are placed one on top of another, each element having a disc-shaped top forming a tray b and sides c fashioned and marked or coloured to represent articles, the sides c are attached to the trays by lugs f on the upper edges of the sides c which are gripped in the fold g of a flange on the tray edge.
Patent GB-1458708-A (GB)
Title: Method apparatus and product relating to electrical contact devices
IPC: B26D7/12
Filed: 1974-05-17
Abstract: 1458708 Making electrical contacts NORTH AMERICAN SPECIALTIES CORP 17 May 1974 [25 May 1973] 22079/74 Heading B3A A method of producing an electrical contact having a gold bonded layer comprises supplying gold ribbon 10 along a feed path, supplying a contact blank 12 along an intersecting feed path, welding the ribbon to the contact blank, and cutting the ribbon. The gold ribbon is gripped by a primary gripping device 56, Fig. 6, and moved towards an intersecting point. The ribbon is then gripped by a secondary gripping device 58 whereupon the device 56 releases the ribbon and retracts to engage a fresh length. The welding is carried out using electrodes 26a, 26b the latter electrode being pivotable about a pivot 27, Fig. 2. A cutting device 20 is controlled by a rocker arm 32 pivoted at a point 34 and has a portion which bears down upon.a slidable arm 40 to move the cutting tool 42 downwardly. Upward motion of the tool is provided by spring 48 and a floating platform 21 is used to cushion the downward motion of the tool 42 via a spring 23. The functioning of the apparatus is effected via a cam system (100), Fig. 1 (not shown), which operates pneumatic cylinders 52, 60, 76, 72. After cutting away the unwelded ribbon 10 from the contact blank, the welded gold ribbon 10<SP>1</SP> is coined and formed with contact wire 121.
Patent GB-897723-A (GB)
Title: Safety-valve for contaminated gases, for use in nuclear reactor plants
IPC: G21C9/008
Filed: 1960-06-23
Abstract: 897,723. Pressure-relieving devices for fluids; valves. BROWN, BOVERI & CIE. A.G., and BETEILIGUNGS-UND PATENTVERWALTUNGS-G.m.b.H. June 23, 1960 [Sept. 5, 1959], No. 22099/60. Class 135. [Also in Group XL (a)] A device for relieving pressure from a space 4 forming part of the cooling gas circuit of a nuclear reactor where this gas is radioactively contaminated, comprises a bursting disc 1 which normally obstructs flow out of the space 4 and a safety or relief valve 2 on the downstream side of the disc, this disc being mounted on an extractable slide and supported against bursting on its upstream side by a grill 5, a chamber 3 between the disc and the safety valve having a pressure connection 11 for maintaining a barrier fluid in this chamber at a pressure less than that at which the safety valve 2 operates but greater than the normal operating pressure in the reactor cooling circuit. The cooling circuit is also surrounded by a contained volume of barrier fluid in a space 8, excess pressure in this space being relieved through a second bursting disc 10 into a chamber 7 on the outlet side of the safety valve 2, this chamber 7 being relieved to a line 13 through a second safety or relief valve 6. A pressure-equalizing opening 9 connects the chamber 7 with the space 8, and the disc 10 is supported against bursting into the space 8 by a grill and is also mounted on an extractable slide (not shown). The chamber 7 can be temporarily subjected through a line 12 to a pressure in excess of that at which the safety valve 6 opens, in order to test the working of this valve. Similarly, the working of valve 2 may be tested by temporarily increasing the pressure in chamber 3 through line 11.
Patent GB-363699-A (GB)
Title: Improvements in or relating to paper handkerchiefs, towels, table napkins or like articles and methods of making the same
IPC: B31D1/04
Filed: 1930-07-23
Abstract: 363,699. Handkerchiefs. CELLULOSE PRODUCTS, Inc., Shamokin, Pennsylvania, U.S.A.-(Assignees of Wandel, K. ; 19, West 55th Street, New York, U.S.A.) July 23, 1930, No. 22224. Convention date, Jan. 28. [Class 141.] A paper article simulating a handkerchief &c. comprises a number of superimposed sheets of soft cellulose tissue compressed together in a narrow strip around the edges so as to cause the sheets to adhere at thess portions but elsewhere to be movable one on the other. Lines of indentations may be formed along the inner margins of the pressed areas. The portions of the sheets lying within the pressed areas may be creped or may be embossed to simulate the appearance of a woven fabric or of damask linen. The articles may be made in continuous s lengths and cut off across the centre of the compressed transverse portions. In a. machine for making a continuous length of such articles, sheets of paper from rolls 1a, 2a, 3a, are fed between pairs of pressure rollers 14, 15 arranged at each side of the sheets, and then between a roller 17 and a segmental roller 16 which forms a transverse pressed area twice the width of the lateral compressed areas.. If lines of indentations are to be formed along the inner margins of the compressed areas, the strip then passes beneath lateral indenting wheels 19, 20 and a transverse segmental roller 21 provided with a double row of pins 22, 23. Rotary knives 24, 25 are provided to trim the edges of the sheets.
Patent GB-468540-A (GB)
Title: Improvements in electrically driven vehicle jacks
IPC: B66F3/44
Filed: 1936-08-12
Abstract: 468,540. Lifting-jacks. ELWA-ELECTRO AKT.-GES. Aug. 12, 1936, No. 22233. Convention date, Sept. 16,1935. [Class 78 (iii)] A lifting-jack of the kind driven by an electric motor running in one direction only and having reversing-gear included in the lifting- mechanism, is constructed with oscillating-lever ratchet-transmission gear between the motor and the lifting-pillar. Driving-gear. The motor 3 oscillates the arm 7 which surrounds the lifting-pillar 1 by means of an arm oscillated by an eccentric 5. Surrounding the lifting-pillar above and below the arm 7 are two ratchet friction clutches comprising members 14, 14<1> which are rotated by surrounding rings 16, 16<1> when balls 20 are wedged by rotation in the narrower portions of the slots 19. These clutches are each operative for one direction of rotation and are moved selectively from the arm 7 by the manipulation of a pawl 25 thereon to engage alternatively with the toothed and serrated peripheries of the rings. The pawl is moved by pins 27 on a member 29 fixed to a vertical shaft 30 having a spring arm 50 secured to its upper end. Rotation of a plate 47 to either side of a central inoperative position causes one or other of two pins 48, 49 to bear against the spring 50 and operate the shaft 30 and the pawls. In addition, the movement of the plate starts the motor by bringing a terminal 51 into contact with one or other of two contacts 52, 53. A long handle inserted into a socket 33 rotates an arm 32, which in turn rotates a lever 8 having a pin-and-slot engagement with the plate 47. The slot has three pin-receiving indentations to lock the lever 8 against accidental displacement from its centre or either end position. Handles, detachable. The handle 36 is applied to the socket 33 by pushing it radially into alignment therewith so that a button or head 38 engages behind the undercut projections 35 to prevent axial withdrawal and the rectangular portion 39 fits closely between the inner faces of these projections to transmit the torsional stress. After assembly the sleeve 40 is slid from the dotted line position over the connection until a ball-catch 41 locks it against accidental displacement. Telescopic screw lifting-pillars. The rotation of the screw 1 first raises the member 60 until it jams on the screw, after which the continued rotation raises the member 70. The latter carries upper and lower limit stops 76, 77 which operate a striker 80 to return the lever 8 to mid-position and stop the motor. The member 70 also carries a crutch 31 provided with a pivoted depending arm carrying an adjustable lifting foot 75. Illuminating parts. A tubular incandescent lamp may be fixed between a pair of brackets 84 so that the lever 8 and associated parts may be viewed through the lens 85.
Patent GB-499738-A (GB)
Title: Improvements in or relating to side-delivery hayrakes and swath turners
IPC: A01D78/00
Filed: 1938-07-27
Abstract: 499,738. Haymaking. HOEF, P. VAN DER, and AKKERMAN, M. J. July 27, 1938, No. 22318. Convention date, July 29, 1937. [Class 6 (iii)] A hayrake, or swath-turner adapted to deliver to either side comprises a frame 1 carried at the rear by an axle 2 and land wheels 3 and at the front by a wheel 4 in the fork of a vertical shaft 6 on which the frame may be vertically adjusted by a chain 9, leading to a bell crank controlled by a hand adjusting lever. A horizontal shaft 18, which may consist of two aligned parts, extends across the frame and carries the rotating rake which comprises two spiders 19, 20 between which the rake heads are arranged rotatably and pivotally. The spiders may be swung to the right or the left at a sharp angle with the axle 18 by a lever 22, rod 25 and arms 26, 27 connected to the rod 25. The spider 19 is driven from the axle 2 through gears 28 and chain 29 which passes round a sprocket 30 carried by a sleeve 31 rotating on the shaft 18 and provided with a bevel gear 32 adapted to mesh with teeth 39 in the spider when this is swung to either of its extreme angular positions. To permit the swinging the spider rotates on a bearing 34 mounted on a vertical pivot 35 extending from a block 36 on the shaft 18. The middle tines may be removed for swath-turning.
Patent GB-321209-A (GB)
Title: Improvements in tapered keys for securing railway rails
IPC: E01B9/50
Filed: 1928-08-02
Abstract: 321,209. Yates, C. R. Aug. 2, 1928. Chair keys.-One-way taper metal keys for flange rails have a continuous curved back b and a longitudinal groove h underneath the key to reduce the weight. The groove may taper with the key to maintain a substantially constant cross-section of metal. The key may be stamped, forged, cast, or rolled.
Patent GB-1071574-A (GB)
Title: A semiconductor device having three or more layers with alternate types of conductivity
IPC: H01L29/06
Filed: 1964-05-29
Abstract: 1,071,574. Semi-conductor devices. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. May 29, 1964 [June 1, 1963; Sept. 24, 1963], No. 22373/64. Heading H1K. In a semi-conductor device comprising three or more layers of alternate conductivity types, the surface where the PN junctions emerge forms an angle of less than 90 degrees with the junction in the direction of the higher resistivity material. Fig. 4 shows an N-type silicon wafer with an outer P-type diffused layer which is cut through at lines 13 to expose PN junctions which meet the surface with the required angular conditions; this has the effect of reducing the electric field along the surface under reverse biasing conditions. A similar effect is produced in a PNP body as shown in Fig. 5 by cutting a trough through line 23 and the same arrangement may be used in a PNP wafer with a projecting edge portion (Fig. 7 not shown).
Patent GB-736803-A (GB)
Title: Improvements in or relating to the sizing of paper
Inventor: TROST FREDERICK HUGO
IPC: D21H17/68
Filed: 1952-09-05
Abstract: 736,803. Sizing paper pulp. BRITISH BEWOID CO., Ltd. July 28, 1953 [Sept. 5, 1952], No. 22420/52. Class 96. High wet-strength paper is made by sizing paper pulp with an intimate mixture of a mechanically dispersed aqueous rosin emulsion including a protective colloid, e.g. casein, and an inert filler, e.g. kaolin, and a neutral ureaformaldehyde syrup which becomes effective as the wet-strength agent after precipitation as by aluminium sulphate and drying the formed paper. Broke of such paper may be repulped, and mixed e.g. with unbleached sulphite pulp. Specifications 536,874, [Group V], and 549,244, [Group III], are referred to.
Patent GB-640660-A (GB)
Title: Improvements in printing machines
IPC: B41F31/00
Filed: 1947-08-12
Abstract: 640,660. Printing-machines. HOE & CO., Ltd., R. Aug. 12, 1947, No. 22430. Convention date, Aug. 12, 1946. [Class 100 (ii)] A printing-press which is driven by one motor M, Fig. 6, and is provided with an independent motor 44 for driving the inking or damping rollers of each couple for cleaning purposes, is so constructed that these rollers can only be driven by a motor 44 when tripped away from their printing rollers. The inking and damping rollers are driven by a gearwheel 27, Fig. 5, driven by a gear 26, which may be clutched to a gear 25 driven by a gear 7<SP>1</SP> on the printing-roller, or to a gear 47 driven by an independent motor 44. The sliding gear 26 is actuated by a sliding member 50 with an arm 51 which engages a groove in the gear 26. Teeth 41 on gear 26 can engage teeth 40 on gear 25, or teeth 49 on gear 26 can engage teeth 48 on gear 47. A spring-pressed ball 52 engages recesses in the member 50 to hold the gears in place. A switch 53 is closed'when gear 47 acts as driver. In Fig. 2, the printing-roller 7 is fitted with inking rollers 15, and damping rollers 20 of known form, and these rollers can be tripped away from the roller 7 by the operation of levers 77 and 70 respectively, acting through linkage and cam or eccentric means, and switches 71, 86 are operated from these levers and are closed when the rollers 15, 20 are in active position. If it is attempted to operate the rollers 20 or 15 by the motors 44 when the rollers are not tripped, a relay R3, Fig. 6, is energized and cuts out the current to the motor 44, so that the cleaning operation cannot take place if either the inking or damping rollers are in operative position. In Fig. 6 it is seen that the switches 71, 86 are in parallel with one another and are in series with the switch 53 which is closed when the clutch is moved to gear the motors 44 with the inking and damping rollers. The motor M may also be stopped when a motor 44 is stopped.
Patent GB-501010-A (GB)
Title: Improvements in or relating to machines for dividing up slabs for example of sugar and packing them
IPC: C13B45/02
Filed: 1937-08-16
Abstract: 501,010. Sugar-cutters. HESSER :MASCHINENFABRIK AKT.-GES., F., and SCHWINGER, H. Aug. 16, 1937, No. 22431. [Class 127] [Also in Group XVII] In a machine for cutting up slabs of sugar and packing the resulting pieces in boxes, the slabs are fed from the bottom of a hopper 2 by a plunger 3 on to a conveyer 4 with entraining members 5. The conveyer feeds the slabs by intermittent steps beneath a cutting device 10, the arrangement of the knives being diagrammatically indicated in plan in Fig. 7. The slab I is moved a distance equal to the width of a piece of sugar beneath a knife 11 which makes a transverse cut for each movement, and three short knives 13 ... 15, which cut the resulting bars into pieces.
Patent GB-996499-A (GB)
Title: Process for the preparation of curing mixtures containing bitumen and a polyepoxyether
IPC: C08L95/00
Filed: 1962-06-12
Abstract: A curable mixture suitable for surfacing roads, runways or floors, contains a precipitation bitumen, an aromatic extract (initial boiling point at least 200 DEG  C.) of a mineral oil fraction, a polyepoxyether and a curing agent for the polyepoxyether. A precipitation bitumen is one obtained by addition of an aliphatic hydrocarbon to a residue obtained in the distillation of mineral oil. Polyepoxyethers mentioned are diglycidyl ether and the glycidyl ethers of 2,2-bis - (4 - hydroxyphenyl) - propane. Curing agents mentioned are: a trimer of linoleic or linolenic acid; a dimer or trimer of a mixture of linoleic and/or linoleic with oleic acid; diethylenetriamine; N - (2 - aminoethyl) piperazine. When a polycarboxylic acid curing agent is employed a curing catalyst, e.g. 2,4,6-tris-(dimethylaminomethyl) phenol is also used. With basic nitrogen curing agents it is advantageous to use a plasticizer, e.g. an alkyl phenol.  The examples use a mixture of glycidyl ethers of 2,2 - bis - (4 - hydroxyphenyl) propane having an epoxy value of 190 together with precipitation bitumen, a furfural extract of a mineral oil distillate and either (A) trimeric drying oil acids and 2,4,6-tris-(dimethylaminomethyl) phenol, or (B) N - (2 - aminoethyl) piperazine and mixed alkylphenols as plasticizers. The mixtures were cured both alone and together with stone, sand and limestone aggregate for road surfacing.  Specifications 818,810 and 860,287 are referred to.ALSO:A curable mixture suitable for surfacing roads, runways or floors contains a precipitation bitumen, an aromatic extract (initial boiling point at least 200 DEG  C.) of a mineral oil fraction, a polyepoxyether and a curing agent for the polyepoxyether. A precipitation bitumen is one obtained by addition of an aliphatic hydrocarbon to a residue obtained in the distillation of mineral oil. Polyepoxyethers mentioned are diglycidyl ether and the glycidyl ether of 2,2-bis -(4-hydroxyphenyl)-propane.  Curing agents mentioned are: a trimer of linoleic or linolenic acid; a dimer or trimer of a mixture of linoleic and/or linolenic with oleic acid; diethylenetriamine; N - (2 - aminoethyl)-piperazine. When a polycarboxylic acid curing agent is employed, a curing catalyst, e.g. 2,4,6-tris - (dimethylaminomethyl) - phenol, is also used.  With basic nitrogen curing agents it is advantageous to use a plasticizer, e.g. an alkyl phenol.  The examples are a mixture of glycidyl ethers of 2,2-bis-(4-hydroxyphenyl)-propane having an epoxy value of 190 together with precipitation bitumen, a furfural extract of mineral oil distillate and either (A) trimeric drying oil acids and 2,4,6 - tris - (dimethylaminomethyl)-phenol, or (B) N-(2-aminoethyl)-piperazine and mixed alkylphenols as plasticizers. The mixtures were cured both alone and together with stone, sand and limestone aggregate, for road surfacing.  Specifications 818,810 and 860,287 are referred to.
Patent GB-862152-A (GB)
Title: Improvements relating to wax and wax articles
Inventor: CAMERON JAMES BRISBANE
IPC: C11C5/00
Filed: 1956-07-20
Abstract: A water-soluble wax composition for use in making a wax pattern of a hollow article (see Group V) comprises 80 parts by weight of polyethylene glycol wax, and 10 parts each of sodium bicarbonate and tartaric acid.  When the composition is placed in water the sodium carbonate reacts with the tartaric acid to generate carbon dioxide which assists in the dissolving of the wax. Reference has been directed by the Comptroller to Specification 727,264.
Patent GB-1014606-A (GB)
Title: Valves in rotary fluid machines
IPC: F04B49/10
Filed: 1962-06-13
Abstract: 1,014,606. Valves. K. EICKMANN. June 13, 1962, No. 22646/62. Heading F2V. [Also in Division F1] A revolving cylinder pump (see Division F1) has centrifugally actuated inlet and delivery valves. The inlet valve 6, Fig. 1, is closed by centrifugal action on a pivoted weight 4, and opened by the inlet pressure and pump suction. The delivery valve 13, Fig. 3, is held closed by direct centrifugal action. In another embodiment, the delivery valve is actuated by a pivoted weight in a similar manner to the inlet valve.
Patent GB-642956-A (GB)
Title: Improvements in or relating to television and like systems and apparatus
IPC: H04N9/07
Filed: 1947-08-14
Abstract: 642,956. Automatic control systems for cathode-ray tubes. RAULAND CORPORATION. Aug. 14, 1947, No. 22653. Convention date, Sept. 19, 1946. [Class 38 (iv)] [Also in Groups XL (a) and XL (b)] In an arrangement for controlling the accuracy of the scanned pattern on the lightsensitive electrode of a picture-signal generating tube the pattern is monitored by means comprising a filter array of strip elements which co-operate with control means to provide a signal which is employed to control the scanning means of the tube to compensate for deviations of the scanned pattern from a precise predetermined pattern. In an application of the invention to colour television the mosaic electrode 2 of a picture signal generating tube 1 is provided with a marginal fluorescent portion 6 which is backed by a filter raster 9 comprising a repeating series of colour filter strips so that, as the electron beam sweeps across the whole electrode structure during successive line scans, white light produced by the fluorescent portion 6 is transformed into light of different successive colours determined by the filter 9 (in this case a repeating R. G. B. series) and photo-electric cells 12, 17, 18, each rendered selectively responsive to one of these colours by means of filters 13, 19, 20, provide controlling signals which are employed to correct the slope of the frame scanning wave when any line scan is incorrectly positioned. The circuit arrangement which is employed to utilize the signals developed by the photo-electric cells is similar to the arrangement described in Specification 642,954 for scanning control in a colour television receiver. Specification 642,955, [Group XL (b)], also is referred to.