baber/WOPTO huggingface dataset:
Patent GB-524060-A (GB)
Title: Improved selector valve for automatically controlled hydraulically operated change-speed gears
IPC: F16H61/00
Filed: 1939-01-20
Abstract: 524,060. Controlling change - speed gearing ; fluid - pressure servomotor - control systems. KEGRESSE. A. Jan. 20, 1939, No. 2078. Convention date, Jan. 21, 1938. [Class 80 (ii)] [Also in Group XXIX] A selector valve for automatically controlled hydraulically - operated variable - speed gearing, more particularly in which hydraulically operated clutches are utilized for effecting the changes of speed, comprises a hollow piston 3 adapted to be moved inside a fixed cylindrical sheath 2 by oil pressure from a pump driven by the engine and acting below the piston in a chamber 24. The piston 3 has at its lower end an external groove 4 and openings 6 which are adapted to co-operate with grooves and openings 17 in the sheath 2 controlled by a rotatable sleeve 10 so as to position the piston in the various speed positions, in this case four, in which the pressure fluid is supplied through another external groove 5 and openings 7 to ducts 18, 19, 20 or 21 supplying the gear operating clutches. The sleeve 10 is rotatably adjusted by a rack 12 engaging gear teeth 11 and is provided with control ports 16. A spring-pressed locating member 14 co-operates with notches in the base portion 13 of the sleeve 10. The locating notches correspond to the " neutral " and the first three gear positions. The fifth or " automatic " position of the sleeve corresponds to the cylindrical part 13 of the sleeve and is variable. In the " neutral " position the pressure fluid escapes through an annular space 41 and a port 40 aligned with a port in the sleeve 10. The top part of the piston 3 is formed externally with grooves 9 forming in effect ratchet teeth for a pawl 34 in a pivoted ratchet arm 33. In each of the first three gear positions, the ports 16, 17 are relatively adjusted so that the piston 3 rises to the selected gear position in which it is retained by the pawl 34 engaging one of the teeth 9. In the " automatic " position, the piston dwells a shorter or longer period in each gear and eventually reaches the fourth gear position at a predetermined speed of the engine which is variable according to the position of the sleeve 10. The arm 33 is adapted to pivot and unseat a valve 26 releasing the pressure below the piston 3 when the piston descends under the pressure of spring 8 due to the pressure of the oil falling off consequent on a drop in the speed of the engine. This release of pressure is only momentarily and enables the piston to descend quickly from one position to the next, the arm 33 slipping back for engagement with the next tooth or groove 9. Specifications 466,543, 481,007 and 482,632 are referred to.
Patent GB-1123695-A (GB)
Title: Lorry with interchangeable body
Inventor: THIELE BERND
IPC: B60P1/64
Filed: 1966-01-17
Abstract: 1,123,695. Vehicle suspensions &c. C. W. KOLKER, [trading as ACKERMANN FAHZEUGBAU]. 17 Jan., 1966, No. 2141/66. Heading B7D. [Also in Division B8] Hydraulic jacks are provided between the chassis and the rear axle so that their extension can tilt the chassis about the front axle by relieving the pressure on the leaf springs supporting the chassis on the back axle.
Patent GB-448892-A (GB)
Title: Improvements in electric imitation solid-fuel fires
IPC: F24C7/00
Filed: 1935-01-23
Abstract: 448,892. Imitation fires; electric heating. BRETT, L. B., 49, Park Avenue North, Hornsey, London. Jan. 23, 1935, No. 2214. [Classes 39 (iii) and 126] An electric heating element for use in an imitation fire comprises a slab A of fireclay or other refractory material in which are embedded pieces C of imitation coal or coke and which is formed with perforations B for the passage of flame-coloured light ; a coiled heating element D is supported on the face of the slab, between the pieces of imitation fuel. A coloured lamp, or a lamp with a coloured screen or polished copper reflector, is used behind the slab.
Patent GB-346482-A (GB)
Title: Improvements in valves
IPC: F16K1/08
Filed: 1930-01-22
Abstract: 346,482. Valves. NEWMAN, C. P. and NEWMAN, HENDER, & CO., Ltd., Woodchester, Gloucestershire. Jan. 22, 1930, No. 2259. [Class 135.] Protecting covers. -In a valve of the screw-down type, suitable for radiators, and having a dirt-excluding easyclean shield j, the shield is internally screwed to engage internal threads k on the stuffing- box whereby the pressure of the follower g on the packing can be adjusted by rotation of the shield. Flat portions o may be formed on the shield to accommodate a spanner for this purpose. Specification 176,285, [Class 135, Valves &c.], is referred to in the Specification.
Patent GB-524167-A (GB)
Title: Improvements in or relating to mounting arrangements for piezo electric crystals
IPC: H03H9/09
Filed: 1939-01-23
Abstract: 524,167. Piezo electric crystals. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TERRONI, T. B. D. Jan. 23, 1939, No. 2351. [Class 40 (v)] A piezo-electric crystal having electrodes formed on its major surfaces by coating the latter with a thin layer of metal, e.g., gold, is supported between spring clamps 2, 3 contacting with the periphery of the crystal surfaces Tongues 10, 11 projecting from the clamps,2, 3 enable connections to be made to contact pins 8, 9, and the assembly when slid into a cover 4 provided with recesses 5 is held fixedly therein by the pressure of the springs.
Patent GB-1375943-A (GB)
Title: Mixing of granular materials
IPC: B01F27/93
Filed: 1972-01-18
Abstract: 1375943 Mixing of granular materials T G EVANS and G A RYDER 15 Dec 1972 [18 Jan 1972] 2395/72 Heading B1C A method of mixing together two or more materials at least one of which is of a granular nature having a bulk density of less than 70 per cubic foot, wherein the materials are supplied to an apparatus comprising a rotary dished platform, which is rotatable about a vertical central axis, and a wall which closely surrounds and extends upwards from the rim of the platform, but which does not partake of the rotation of the platform, and the platform is then rotated with the materials upon it.
Patent GB-703129-A (GB)
Title: Securing means for rails in railway tracks
IPC: E01B9/10
Filed: 1952-01-29
Abstract: 703,129. Securing railway rails. MEIER, H. Jan. 29, 1952 [Jan. 29, 1951], No. 2427/52. Class 104 (2) [Also in Group XXV] A set screw 3 for securing rails to sleepers has grooves 4, 5 for screwing and securing the screw to the sleeper. A plate 9 having a hole provided with projections 10 to engage the grooves 4, 5 is placed over the screw 3 and engages ribs 8 formed on a base plate 6 to prevent rotation of the screw 3. The screw 3 is rotated by means of a tool engaging the grooves 4 and 5.
Patent GB-528309-A (GB)
Title: Improvements in and relating to brakes for controlling rotary motion
IPC: F16D49/10
Filed: 1939-01-25
Abstract: 528,309. Band brakes. WILSON, W. G. Jan. 25, 1939, No. 2624. [Class 103 (i)] A band brake applicable as a reaction device for epicyclic gears and for other purposes comprises a primary band adapted to be tightened about an inner secondary band which is independenty anchored at about its middle point, the arrangement being such that an efficient braking action is provided with either direction of rotation of the drum and that the central axis of rotation is not distorted. A primary band a adapted to be tightened by force applied to its two ends f, k, has secured thereto strips x<SP>1</SP>, x<SP>2</SP> of friction lining and a backing w<SP>1</SP>, w<SP>2</SP>. The secondary band comprises a strip of friction lining x with a backing w anchored by a lug 10 and links 12 to the casing 15, the lug passing through a slot in the band a. The band w engages a circumferential groove in the band a and is normally held in contact with that band by a spring 20 secured to the links 12 and bearing at 21 on the band a. An operating lever l is pivoted by a pin m bearing in recesses a pair of laterally spaced plate-like links n which may be anchored directly to the casing but which as shown are pivoted at o to a strut p' secured at p" to a casing, the ends of the strut and links being disposed in a recess in a frame member p. The lever l also bears at t on a strut u on a pull rod h connected to the end f of the band a and bears on the other end k of the band through a strut r. The links n are normally held in position in which they contact the band a at k<SP>1</SP> by a friction device n<SP>1</SP> interposed between them and the strut p' and they are forced against the band when by raising the lever l the brake is applied. Means such as shown in Specification 370,442, [Group XXIV], may be provided for operating the lever l.
Patent GB-1263896-A (GB)
Title: Foam article and method of making same
IPC: C08J9/40
Filed: 1970-01-20
Abstract: 1,263,896. Foam product. DAYCO CORP. 20 Jan., 1970 [14 Feb., 1969], No. 2650/70. Heading B2E. A unitary foam of synthetic or natural rubber for use as cushions, pillows or mattresses is impregnated in at least a portion thereof with an oil to render the portion softer and more fire resistant. The oil may be a petroleum oil of aromatic, paraffinic or naphthenic types, a vegetable oil such as soyabean, cotton seed, corn, coconut, palm, peanut or rapeseed, talloil of the oleic type, animal oils such as sperm (whale), fish and neatsfoot or mineral oils such as chlorinated paraffin, methyl esters, glycidyl esters and plasticisers such as dibutyl phthalate. In an embodiment a teo reticulated foam slab 15 is passed over a bath 12 containing the oil 11 and is pressed by the rollers 14 onto rollers 13 which are partially immersed in the oil, thereby forming a portion 20 impregnated with oil. The slab may be reversed in order to impregnate the other face. The depth of penetration of the oil may be controlled by heating the bath 12, diluting the oil with a solvent or surface active agent or by providing an oven (18) through which the impregnated foam is passed. The oil may also be applied by brushing, spraying, rolling or dipping.
Patent GB-554672-A (GB)
Title: A method of and means for constructing buildings including the walls, roofs, and partitions thereof, air raid shelters and the like
IPC: E04C2/28
Filed: 1942-02-28
Abstract: 554,672. Construction units for buildings. SMITH, G. B. Feb. 28, 1942, No. 2664. [Class 87 (i)] A unit for use in the construction of walls, roofs, and partitions of buildings, air raid shelters &c., comprises a rectangular metal frame a of channel or L-section in which is inserted one or more rectangular concrete slabs b formed with dovetail channels to receive complementary projections e provided on a metal sheet d. Dovetail section wooden laths f are let into the channels e and to some of these laths are secured clips g which bear on the flange a<SP>1</SP> of the metal frame a. In constructing walls &c., a number of such units are secured together by clamping plates j and bolts i, k. Seats, bunks &c. l may be secured to the wooden lathes f. The securing clips g may be carried by separate dovetail members inserted in the ends of the channels e.
Patent GB-782729-A (GB)
Title: Improvements in or relating to the focusing of charged particles
IPC: H01J23/087
Filed: 1956-01-27
Abstract: 782,729. Beam focusing apparatus. STANDARD TELEPHONES & CABLES, Ltd. (Nippon Electric Co., Ltd.). Jan. 27, 1956, No. 2729/56. Class 39(1). A focusing arrangement for confining a beam of charged particles to a rectilinear path provides an axial field whose direction at any given instant is reversed periodically along the beam path and which is set up by a polyphase A.C. supply of three or more phases. Coaxial rings, Fig. 1, in each group of 12 are connected consecutively to the phases of a 12-phase supply. The resultant potential distribution is shown in Fig. 2, and is a backward travelling wave of approximately sinusoidal form. For charged particles with velocity equal to <SP>1</SP>/ 10 C for example, there is negligible change in the potential distribution during the time of flight of the particles. The rings of Fig. 1 may represent the discs of a disc-loaded waveguide. In a travelling wave tube the slow wave structure may be constituted by a trifilar, helix, each component helix being connected to a separate phase of a 3-phase supply. The invention may also be applied to linear particle accelerators. Reference is also made to magnetic periodic focusing.
Patent GB-699224-A (GB)
Title: Improvements relating to brackets
Inventor: LILJEMARK RUNE VALENTIN
IPC: A47B57/48
Filed: 1952-02-04
Abstract: 699,224. Brackets. HYRESGASTERNAS SPARKASSE-OCH BYGGNADSFORENIGARS RIKSFORBUND U. P. A. Feb. 4, 1952, No. 2900/52. Class 52(v) Shelving or scaffold boards 8 have holes 5a adjacent the ends into which the vertical part 3 of a pin is inserted from the underside an oblique limb 3a of the pin being supported in a hole 6 in the upright 7. Angle iron reinforcement 10 may be secured to the underside or let into the shelf &c.
Patent GB-979510-A (GB)
Title: Positive temperature coefficient bead thermistor
IPC: C04B35/468
Filed: 1963-01-23
Abstract: 979,510. Thermistors. WESTINGHOUSE ELECTRIC CORPORATION. Jan. 23, 1963 [Feb. 23, 1962], No. 2917/63. Heading H1K. A positive temperature coefficient thermistor is made by depositing a slurry of suitable material on two closely spaced parallel conductive members to bridge them and then sintering at at least 1000 C. and finally subjecting to oxidation and reduction steps to produce the required characteristics. Suitable materials are barium titanate, barium strontium titanate, barium lead titanate, and barium zirconium titanate alone or mixed with lead oxide. In each case the material is doped with cerium or yttrium, and other rare earths, e.g. gadolinium, samarium and lanthanum may also be added. The conductive members may be wires or flat strips of nickel or platinum and a plurality of these are stretched over a refractory metal or ceramic frame 16 in manufacture (Fig. 1) and beads 18 of thermistor material applied at the points shown. After sintering the wires are cut to provide individual units with wires extending in the same or opposite directions from the bead and then oxidized and reduced. Typical processes are described in detail.
Patent GB-1093841-A (GB)
Title: Electrically-controlled switching circuit
IPC: H01L29/00
Filed: 1965-01-22
Abstract: 1,093,841. Semi-conductor switching circuits. DANFOSS A. S. Jan. 22, 1965 [Jan. 22, 1964], No. 2969/65. Heading H3T. [Also in Division H2] A switching circuit comprises at least two junctionless non-rectifying solid state switches 3-6 connected in series, each of which, on application of a voltage in excess of a threshold value, is capable of switching from a high resistance to a low resistance condition, and means for supplying a control voltage in excess of the threshold value individually to each solid state switch. As shown, the control voltages are applied simultaneously to a capacitively coupled electrode 16 of each switch from individual transformers 8-11, the primaries of which are connected in parallel across a trigger generator 7. The switches may consist predominantly of tellurium with the addition of elements from groups IV and V of the Periodic Tables, such as arsenic and germanium, so as to give symmetrical characteristics (Fig. 1, not shown). The individual transformers 8-11 may be replaced by one (Fig. 3, not shown), having a single primary and multiple secondary windings, the control electrodes of the solid state switches connected to these secondary windings being connected to one of the conduction path electrodes of the switches. The input from generator 7 may be sine or squarewave impulses or direct voltage and may be coupled to the main circuit so that the control pulses are supplied in the required phase relationship with the A.C. supply 1. In a further circuit (Fig. 4, not shown), the primaries of the transformers are connected in series across the trigger generator and two terminal junctionless non-rectifying solid state switching elements are used, the transformer secondaries being in series with the switches. Two solid state switches can be combined into a common unit with a central electrode.
Patent GB-1151805-A (GB)
Title: Improvements in or relating to Current Stabilising Transistor Circuits.
IPC: H01L27/07
Filed: 1967-01-20
Abstract: 1,151,805. Current stabilizers. SIEMENS A.G. Jan.20, 1967 [Jan.21, 1966], No.3114/67. Heading G3X. A current stabilizer comprises complementary transistors T 1 , T 2 , the collector of T 2  being connected over a potential divider R 3 , R 1  to the base of T 1 , the collector of T 1  being connected to the base of R 2 , and the emitter of T 1  being connected over a diode G and a resistor R 2  to the junction of R 3  and R 1 ; the current to be stablized is applied to the emitters of T 1  and T 2 . The arrangement may be formed as an integrated circuit in a single semi-conductor body Fig. 2 (not shown).
Patent GB-1049461-A (GB)
Title: Photographic colour material
IPC: G03C7/36
Filed: 1964-01-24
Abstract: m[p - {b  - [p (1,1,3,3 - Tetramethyl - n - butyl)-phenoxy] ethoxy} benzoylamino] benzoylacet-31, 51-dicarbomethoxy-anilide is prepared by reacting dimethyl-m-amino-isophthalate with methyl m-nitrobenzoyl-acetate and reducing the nitro group in the product to give 3-amino-benzoylaceto-31,51-dicarbomethoxy-anilide, and then reacting this with p-{b -[1,1,3,3-tetramethyl-n-butyl)-phenoxy] ethoxy} benzoyl chloride obtained from the free acid (see Specification 774,421) and thionyl chloride.  Similar compounds are obtained when 2-hydroxy-4-amino-benzoic acid methyl ester, methyl m-amino-phenoxyacetate or dimethyl aminoterephthalate is used instead of dimethyl-m-amino-iso-phthalate, or if methyl p-nitrobenzoylacetate is used instead of the meta compound.  The esters may be subsequently hydrolysed to the sodium salts. m-(p-Hexadecyloxy-benzoylamino)benzoyl-aceto - 31,51 - dicarbomethoxy - anilide is similarly prepared from 3-amino-benzoyl-aceto-31,51-di carbomethoxy-anilide (see above) and p-(n-hexadecyloxy) benzoyl chloride (from the free acid and thionyl chloride).
Patent GB-538103-A (GB)
Title: Improvements in television receiving apparatus
IPC: H04N5/52
Filed: 1940-02-19
Abstract: 538,103. Television receivers ; wireless receivers. HAZELINE CORPORATION. Feb. 19, 1940, No. 3139. Convention date, March 15, 1939. [Classes 40 (iii) and 40 (v)] In a television receiver, the signal, coming for example from an intermediate frequency amplifier 14, is supplied to two valves 24, 32 operating as follows. The valve 24 acts as a peak rectifier passing only synchronizing pulses producing voltage pulses across the short time-constant resistance-condenser circuit 27, 34 and smoothed voltages by means of the long time-constant resistance-capacity circuit 25, 26. The smoothed voltage serves to bias the valve and for AVC through filter 29, 30. The valve 32 serves to rectify the signal and is arranged in series with the short time-constant circuit so that the synchronizing pulses are substantially completely removed from the rectified signal and the pure picture signal is available for supply to the image reproducer 17 for example through an amplifier 16, the removal of the synchronizing pulses leaving the picture: signal with a black-level which can be readily stabilized. Specifications 484,202, 515,360 and 530,426 are referred to.
Patent GB-1531924-A (GB)
Title: Carbamylguanidine antimicrobial compounds
IPC: A61K31/16
Filed: 1976-01-27
Abstract: 1531924 Carbamoyl guanidines for inhibiting dental plaque COOPER LABORATORIES INC 27 Jan 1976 [3 Feb 1975] 3148/76 Heading A5B [Also in Division C2] Dental plaque inhibiting compositions contain compounds having the formula: as active ingredient wherein Y is a bivalent organic radical selected from C 2 -C 12  alkylene, C 5 -C 12  cycloalkylene, C 5 -C 12  cycloalkylenebis (lower alkyl), C 6 -C 13  arylene and lower alkylarylene, C 7 -C 12  aryleneloweralkyl, and C 8 -C 12  arylenebis (loweralkyl); B is carbamylguanidino or thiocarbamylguanidino; B' is B or biguanidino, provided that B' is biguanidino only when B is carbamylguanidino bonded to Y through the guanidino portion of the group; and Z is selected from C 1 -C 12  alkyl; C 4 -C 12  dialkylaminoalkyl; C 3 -C 12  alkenyl; C 3 -C 12  alkynyl; C 3 -C 12  cycloalkyl, C 4 -C 12  cycloalkylalkyl; C 1 -C 10  alkoxy C 2 -C 10  alkyl having a total carbon content of C 3 -C 14 ; C 1 -C 10  alkylthio C 2 -C 10  alkyl having a total carbon content of C 3 -C 14 ; phenoxy C 2 -C 6  alkyl; phenylthio C 2 -C 6  alkyl; C 6 -C 14  aryl; C 7 -C 14  aralkyl and arylcycloalkyl; and C 6 -C 14  aryl and aralkyl substituted with one or more radicals selected from C 1-6  alkyl, trifluoromethyl, C 1-6  alkoxy, trifluoromethoxy, phenoxy, C 1-6  alkylthio, halo, nitro, cyano, C 2 -C 6  acyl, benzoyl, alkoxycarbonyl, di C 1-6  alkylamino, C 1-6  alkylsulfonyl, fluorosulfonyl and alkylsulfinyl; and pharmacologically acceptable addition salts of these compounds with acids represented by nHA wherein n=0, 1/3, 1/2, 2/3, 1, and 2 and HA is an inorganic or organic acid.
Patent GB-660891-A (GB)
Title: Improvements in or relating to blades for knives
IPC: B26B9/00
Filed: 1949-02-04
Abstract: 660,891. Knives. UNDERHILL, A. S. Feb. 6, 1950. [Feb. 4, 1949] No. 3177/49. Class 30. A knife blade is provided with longitudinal grooves arranged in staggered relation on opposite faces. As shown the the lateral edges of the groove 6 on one face overlap the grooves 4, 5 on the other face. each groove being opposite a flat on the other face. In a modification part of a groove is arranged at the cutting edge in one of the faces. The knife blade will retain the characteristics of a hollow-ground blade the cutting edge, with wear, receding from a groove on one face to a groove on the other face.
Patent GB-572775-A (GB)
Title: Improvements in or relating to fluid pressure remote control systems
IPC: B64C25/22
Filed: 1944-02-24
Abstract: 572,775. Hydraulic machines; fluid-pressure servomotors. AUTOMOTIVE PRODUCTS CO., Ltd., and PARKER, S. M. Feb. 24, 1944, No. 3214/43. [Classes 69 (ii) and 135] [Also in Group XXVIII] In a remote control system, e.g. for operating aircraft undercarriages &c., wherein a motor is supplied with pressure liquid or gas under the control of a valve operated by an electric motor, which is started by a remote switch and stopped by a second switch operated automatically when the valve reaches a desired position, reduction gearing between the electric motor and valve includes a clutch enabling the valve to be moved manually independently of-the motor. The valve may have a number of settings corresponding to positions of the starting switch. A piston valve, controlling liquid supply from an accumulator 20 to a single stroke motor 25, is reciprocated by a reversible electric motor 51 through screw-and-nut or rack-and-pinion gearing 63, 64. The valve is connected to the driving rod 65 by a spring clip 66, which can be disengaged by end pressure on the valve for manual operation. When the valve reaches an end position, a member 72 carried thereby breaks a switch 81 or 82 in the electric motor supply circuit, thereby bringing the valve to rest. If a non-reversible electric motor is used, the valve is driven through crank and connecting-rod or cam mechanism. In a modification, the piston valve is replaced by a rotary or oscillating plug valve for use with non-reversible or reversible electric motors respectively. In an arrangement for a valve having four operative positions A, B, C, D, Fig. 12, the starting switch 158 is set in the desired position a, b, c or d and the electric motor 51 drives the valve until a member 147 carried thereby trips a switch 166a, b, c or d in the respective circuit and thereby stops the valve in the desired position. An electric motor circuit for three valve positions is also described.