baber/WOPTO huggingface dataset:
Patent GB-753854-A (GB)
Title: Improvements in or relating to a valve seat
Inventor: BOSTOCK JAMES HENRY
IPC: F16K1/42
Filed: 1954-01-25
Abstract: 753,854. Valves. OTIS ENGINEERING CORPORATION. Jan. 25, 1954, No. 2209/54. Class 135. In a valve for relieving pressure in a container 2, Fig. 1, having a loose ball valve 11 urged towards its seat by a spring 20 acting on a loosely - mounted plunger 15, the seat is formed of removable telescopic parts 5, 6, Fig. 2, forming an annular chamber 9 having an opening in the seating surface. The chamber 9 houses a resilient sealing ring 10 urged against the ball when the valve is closed by fluid pressure transmitted through passages 13 connected to a reduced diameter portion 12 of the valve flow passage 4. On the opening of the valve pressure fluid in the chamber 9 tends to exhaust through the passages 13 to reduce the pressure difference acting on opposite sides of the ring 10 and so prevent its extrusion through the seat opening. The plunger 15 is formed with a conical surface 15a which on the opening of the valve engages a pin 28 to rotate a shaft 29 to hold the spring 20 out of action until reset by hand. A spindle 26 passing through the spring abut-. ments is operable by a hand wheel to positively hold the ball on its seat. In a modification, the reduced diameter portion 12 is made in the form of a venturi, the passages 13 leading from its throat.
Patent GB-1068973-A (GB)
Title: The manufacture of epoxides
IPC: C07D303/16
Filed: 1966-01-18
Abstract: Epoxides of formula <FORM:1068973/C2/1> wherein R represents an alkyl group (1-7 C) or an aryl group, R1 represents an alkyl group (1-7 C) and R2 represents a methyl group, are prepared by reacting a linalyl ester <F\2> with perphthalic acid in an aqueous medium. The compounds in which R1 is an alkyl (1-4 C), R2 is absent and R (when present) represents an alkyl group (2-4 C) or an aryl group, or when R1 represents an alkyl (2-4 C), a methyl group, specifically, 3-formoxy-3,7-dimethyl-6,7-epoxy - octene - (1), 3 - isobutoxy - 3,7 - di methyl - 6,7 - epoxy - octene - (1), 3 - iso valeroxy - 3,7 - dimethyl - 6,7 - epoxy - octene - (1), and 3 - acetoxy - 3,7 - dimethyl - 6,7-epoxy - nonene - (1) are claimed.  The pre paration of the compounds is exemplified and the products have valuable odour character istics.
Patent GB-1243285-A (GB)
Title: Extrusion of resins
Inventor: SKINNER STANLEY JOHN
IPC: B29C48/87
Filed: 1969-01-15
Abstract: 1,243,285. Cooling expandable materials during extrusion. MONSANTO CHEMICALS Ltd. 9 Dec., 1969 [15 Jan., 1969], No. 2412/69. Heading B5A. [Also in Division B1] Screw-extruded polystyrene, expanded by 8% by weight of methyl chloride, is cooled between the end of the screw and the die by passage through a plurality of cylindrical channels, e.g. 17, 18, cooled by a fluid, e.g. stream, and the product of the length and perimeter of each whereof is at least 50 times its area of crosssection, and with the total area of all the channels being at least half the cross-sectional area of the extruder barrel enclosing the screw. The channels may comprise holes drilled through a block of aluminium, steel, copper, or brass which is cooled by a surrounding fluid, but in the preferred embodiment the channels comprise tubes 17, 18 of these materials fixed between end-pieces 19, 20 which are strengthened by a central thicker walled tube 21 and located within a body 1 by body pieces 5 and 7, respectively, fixing to the extruder barrel and die. The location with the body piece 7 is sealed with an annealed copper gasket 14, and with the body piece 5 provision is made by a clearance 24 for the differential expansion of the tubes, with sealing effected by surrounding rings 22 and 23 of cast iron and polytetrafluoroethylene. The end pieces 19, 20 are supported against the compressive effect of extrusion pressure by a pair of bridging semi-cylindrical exterior shells 2, 3, through which the cooling fluid passes at 15 and 16 to circulate around the exterior of the tubes 17, 18.
Patent GB-1456261-A (GB)
Title: Pattern drum for jacquard knitting machines
IPC: D04B15/74
Filed: 1974-01-18
Abstract: 1456261 Knitting machines FOUQUETWERK FRAUZ & PLANCK 18 Jan 1974 [25 Jan 1973] 02493/74 Heading D1C A pattern drum for a Jacquard knitting machine comprises a cylindrical drum body 1 formed with annular grooves 4 in which are mounted pattern elements 5, having butts 7, the elements 5 being displaceable in the circumferential direction of the drum between positions 8 and 9 wherein the butts are operative to select needles when the respective elements are brought to the selecting position on rotation of the drum and positions wherein the butts 7 are inoperative to select the needles, and the elements being lockable in the respective positions as by means of pins 12 insertable in axial bores 11 in the drum body. Arcuate slots 13 in the elements 5 determine the range of displacement thereof. Instead of the integral drum body shown an inner tube may have a stack of annular discs glued thereon in superimposed relationship with the annular grooves 4 defined between the discs. Recesses 3 or teeth act as stops to position the drum on manual rotation thereof.
Patent GB-372743-A (GB)
Title: Improvements in golf apparatus
IPC: A63B63/00
Filed: 1931-01-26
Abstract: 372,743. Pulley blocks. SAUNDERS, F. B., 351, Salisbury Street, Worcester, Massachusetts, U.S.A. Jan. 26, 1931, No. 2512. Convention date, Feb. 12, 1930. [Class 78 (v).] A pulley block 68 for use golf practising apparatus is attached to a fixed framework and comprises brackets 77 carrying pivots 78, 79, and fixed pivots 82 between adjacent pulleys. The pivots 78 are similar to the pivot 43 shown in Fig.3 which is formed on the end of a screw 46 which has threaded engagement with a supporting bracket 47, and locking nut 48 holding the pivot 43 in adjusted positions. The pivots 79 are similar to the pivot 44 shown in Fig. 3 which is provided with a cylindrical body portion slidably received in a bearing 49 in the bracket 51, a pin 52 being mounted on the body of the pivot 44 and operating in a longitudinal slot 53 in the bearing 49 for limiting longitudinal movement of the pivot 44. The outer end of the bearing. 49 is closed by a thumbscrew 54 which has threaded engagement with one end of the bearing and which is adapted to serve as a seat for one end of a coil spring 56 which tends normally to urge the pivot 44 into engagement with the shaft 42 but which is yieldable to permit ready removal, of this shaft from its bearings. Specification 295,455, [Class 132 (ii), Games], is referred to.
Patent GB-751619-A (GB)
Title: Improvements relating to silencers for gaseous currents
IPC: F01N13/18
Filed: 1954-01-28
Abstract: 751,619. Exhaust silencers. SACKVILLE, Ltd., and LAWSON, E. A. Jan. 27, 1955 [Jan. 28, 1954], No. 2580/54. Class 7(2) In a silencer of the kind comprising a casing 1 containing a filling of fibrous material 11, such as steel or glass wool or asbestos fibres, which surrounds a perforated tubular member 12 made of more rigid material, e.g. expanded metal, wire netting or metal gauze, and through which member the gases directly escape, the fibrous material 11 and the member 12 are housed in a tubular liner 10 to form a unit removable from the casing 1. As shown in Fig. 1, the material is wrapped or wound around the member 12 one end 13 of which is flanged inwardly and over a ring 14 to retain the material. The casing 1 of sheet metal has a butt or lap welded longitudinal seam and is cylindrical, tapered or oval in cross-section. A bolt 15 extends coaxially through the member 12 to secure end caps 7, 9 to the end of the casing and against annular flanges 17, the cap 7 being provided with lugs 6 for attaching the silencer to an exhaust pipe and ribs 18 which exert longitudinal pressure on the end of the unit. and the cap 9 having an. outlet in the form of a fin 4.
Patent GB-657264-A (GB)
Title: Improvements in driving gears for the driven axles of vehicles
Inventor: WILSON RONALD HOLDSWORTH
IPC: F16H48/10
Filed: 1949-01-31
Abstract: 657,264. Change-speed and balance gears. KIRKSTALL FORGE ENGINEERING. Ltd. Jan. 31, 1949, No. 2608. [Class 80(ii)] At the centre of a vehicle axle, following the usual first-stage worm or bevel reducing-gear 29, 28, is a second stage epicyclic plain reducing or two-speed gear which also functions as the balance gear. Two unequal-ratio sun-ring-gear trains are mounted side-by-side, as shown, or on opposite sides of the driving bevel 28, one train A being connected directly to the driving bevel 28 by its planet-carrier P (or ring-gear A), and to the adjacent half-axle 13 by its ring- gear A (or planet-carrier P), whilst the sun S<SP>1</SP> of the other train A<SP>1</SP> is driven by the sun S (or ring- gear A) of the first and its planetcarrier P<SP>1</SP> (or ring-gear A<SP>1</SP>) is fast on the other driven half-axle 13<SP>1</SP>. Applied to a two-speed gear, as shown, the second ring-gear A<SP>1</SP> can be clutched to the driving bevel 28 for direct-drive or locked to the fixed casing at 53 for reduced-drive by a sliding dog-clutch 48. As a plain reducing- gear the ring-gear A<SP>1 </SP>(or planet-carrier P<SP>1</SP>) is permanently bolted to the fixed casing. In Fig. 5 (not shown) in which the two trains are mounted on opposite sides of the driving bevel, the facings on which the first ring-gear is bolted to the driving bevel and the second planet-carrier to the fixed casing, are identical so that the trains can be interchanged to provide an alternative reduction ratio. The gearing may be such that the torque on one axle-shaft exceeds that on the other by a slight amount, e.g. 1 per cent. Specifications 517,465, 566,331, [both in Group XXXI] and 580,894 are referred to.
Patent GB-577147-A (GB)
Title: Improvements in apparatus for fine measurements such as comparators and extensometers
IPC: G01B11/00
Filed: 1944-02-14
Abstract: 577,147. Optical comparators. UNITED KINGDOM OPTICAL CO., Ltd., CLAY, R. S., and MOORE, J. A. Feb. 14, 1944, No. 2739. [Class 97 (i)] [Also in Group XIX] In optical comparators &c. for making fine measurements, two mirrors set normally at an angle which is a sub-multiple of 180 degrees are'tilted in opposite directions in proportion to the difference of dimension to be measured, and a collimator may be provided to observe the relative shift of two images reflected in turn but in opposite sequence by the mirrors. Figs. 1 and 2 show the mirrors 10, 10 adapted to be simultaneously tilted about pins 4 by the vertical movement of a feeler pin 2 having a notched head 11. The pin 2 is guided by a flat spring 12 and ,two flat springs 16, 17 secured at right angles to one another. The steel pins 4 are supported in conical recesses in screws 3, the bottom of the recesses being further recessed to leave an actual bearing surface of 0.013" diameter. Similar bearings are provided in a thin spring of German silver. A scale engraved on a black ground on the outer edge of the face 26 of a prism 25 is illuminated by light reflected by the face 27, and the two images of the scale produced by the mirror and the lens 21 are observed by an eyepiece 32, the separation between the two images giving the required measurement. For an extensometer, Figs. 6 and 7, wherein the distance between gauge points 45, 58 is the length under test, the two mirrors, which in this case are the polished surfaces of stainless steel blocks 46, 47, are supported by flat springs 50, 54, the hinge axes of which are so located that the adjacent edges of the blocks 46, 47 are midway between the hinge axes both vertically and horizontally when the blocks are in normal position. The gauge points 58 are carried by a block 57 secured to springs 56 which are soldered to the two blocks 46, 47.
Patent GB-396696-A (GB)
Title: Improvements in plate apparatus for exchanging heat between fluids
IPC: F28F3/08
Filed: 1932-01-30
Abstract: 396,696. Plate heat - exchangers. MUNDAY, R. L., 35, Grosvenor, Bath. Jan. 30, 1932, No. 2866. [Class 64 (iii).] A heat exchanger for fluids, e.g. a milk pasteurizer, comprises a series of corrugated plate elements secured in frames adapted to be clamped between end-plates 2, 8 with the crests of adjacent plates contacting with one another to form a honeycomb structure, the fluids between which heat is to be exchanged flowing through alternate rows of cells. Hollow plates 11 .. 14 having ports for the inlet and oultet of the fluids are interposed between the preheating, heating, and cooling sections of the pasteurizer. The central corrugated parts 22, Figs. 7 and 8, of the plate elements are adapted to be inserted in the frames 17, Figs. 5 and 6, so that the flat marginal portions of the elements contact with the corresponding portions of the frames which are provided with supporting lugs 19. Grooves 18 for packing are formed in the frames, and apertures 20, 21 in the plates and frame form ducts for the fluids. Adjacent plates are oppositely arranged so that the corrugations communicate alternately with inlet and outlet apertures 20, 21. Thus, in Fig. 7, one fluid enters the left-hand port 20 and after flowing in an up-and-down path leaves at the righthand port 20. The other fluid enters at the lower left-hand port 21 of the adjacent plate and leaves at the right-hand port 21.
Patent GB-1019193-A (GB)
Title: Improvements in and relating to yarn spinning or twisting apparatus
IPC: D01H7/60
Filed: 1963-01-23
Abstract: A spinning ring has first and second sliding surfaces for the traveller each in the form of a surface of revolution, having the axis of the ring as the axis of revolution, the second surface having as its generatrix a straight line intersecting the axis, whilst the first surface has as its generatrix a straight or curved line, the internal angle between the secondary generatrix and the "general direction" of the primary generatrix lying between 90 degrees and 180 degrees.  In the case when the first generatrix is a curved line, "general direction" is defined as the tangent to the curve or the chord joining its ends.  The first generatrix is the inside face of the ring; when it is a curve, there is a third sliding surface, the second and third generatrices each being a section of a cone, the two apices coinciding on the axis of the ring, e.g. where it meets a plane parallel to and equidistant from the upper and lower faces of the ring.  The first surface may be part of a sphere of which the centre coincides with the above-mentioned apices, or its generatrix may be arcs of a number of overlapping circles.  The upper surface may have a light to accommodate the thread or have a wear-resisting insert.  In another form, the first and third surfaces are convex, and the second surface a straight line.  A number of travellers are described made of wire or strip with upper and lower hook-portions and a lateral projection or projections to steady the traveller by engagement with the first (i.e. inside) surface of the ring.
Patent GB-1216590-A (GB)
Title: Indenylacetonitriles
Inventor: SHEN TSUNG-YING
IPC: A61K31/41
Filed: 1968-12-16
Abstract: 1,216,590. Indenylacetonitrile derivatives. MERCK & CO. Inc. 16 Dec., 1968 [21 Dec., 1967], No. 2981/70. Divided out of 1,216,589. Heading C2C. The invention comprises compounds of formulae wherein R 2  is H or alkyl, Rα is H or alkyl, R 5  is X, alkoxy, alkenoxy, NO 2 , NH 2 , NH alkyl, N(alkyl) 2  or OH, and X‹ is X, SH, alkyl S, alkyl SO, alkyl SO 2 , CX 3 , X 3 CS, X 3 CO, NO 2  or N(alkyl) 2  (X = halogen), provided that when R 5  is alkoxy and Rα is H, X‹ is not p-X. The 1 - unsubstituted 3 - cyanoalkylindenes (I) are prepared by reacting the corresponding 3- indanone with RαCHCNCO 2 H, followed by decarboxylation of intermediate so formed. The 1 - benzylidene - 3 - cyanoalkyl - indenes are prepared by (a) reacting I with the corresponding benzaldehyde, or (b) dehydrating the appropriate 1 - benzylidene - 3 - carbamylalkylindene.
Patent GB-429523-A (GB)
Title: Improvements in or relating to the process of producing durable horn-like material and the products thereof
IPC: D21J1/00
Filed: 1934-01-29
Abstract: 429,523. Paper tubes. DUNCAN, F. S., 75, East 45th Street, New York, U.S.A. Jan. 29, 1934, No. 3028. [Class 99 (ii)] [See also Group VIII] A paper tube is made by impregnating a paper web by drawing it through or over the surface of a solution of colloidal protein matter, winding on a mandrel to form a tube, jelling and simultaneously or subsequently hardening the colloid, and drying. Wood pulp paper or rag paper may be used and may be impregnated with glue, gelatine, casein, dried blood, albumen, &c. The tube formed is jelled by cooling, e.g. by immersing in a cold bath, or standing in open air. The fixing agent may be salt, alum, a chromate or dichromate, formaldehyde, or paraformaldehyde used in solution in the jelling bath or separately. The tube may be removed from the mandrel before or after fixing, or after drying. As shown, a web from a roll 39 is drawn under rollers 41 over the surface of a glue solution 34 in a jacketted tank 36, around adjustably mounted scrapers 45, 46, and is wound up on a mandrel 50 rotated by supporting rollers 51 and pressed by a roller 53 having an adjustable counterpoise 55. The rollers 41 are mounted on levers 43 pivoted at 42 and angularly adjustable by screws 44 abutting against the edge of the tank. Air jets 57 may be provided to partially jell the glue before winding. Spraying nozzles may be provided to spray the upper surface of the paper with glue solution as it passes between the rollers 41. The mandrel may be of brass or may be covered with paraffin or paraffined paper to facilitate removal of the tube. Reference has been directed by the Comptroller to Specification 118,169, [Class 99 (ii)].
Patent GB-1169955-A (GB)
Title: New halogenated esters and elastomers thereof
IPC: C08F20/28
Filed: 1967-01-20
Abstract: 1,169,955. Halogen-containing acrylates or methacrylates. UGINE KUHLMANN. 20 Jan., 1967 [21 Jan., 1966], No. 3069/67. Heading C2C. [Also in Division C3] Novel halogen-containing diesters of the formula where X and Y are hydrogen atoms or methyl groups, Z is a chlorine or bromine atom and n is from 1 to 4, are obtained by reacting monoacrylic or monomethacrylic esters of diols with acid chlorides of the formula CH 2 Z.COCl in the presence of acid scavengers. The compounds are useful in the production of vulcanizable elastomers (see Division C3).
Patent GB-942656-A (GB)
Title: Bearing for supporting angularly movable components
Inventor: BRADFIELD ALAN HERBERT EDWARD
IPC: F16C33/18
Filed: 1959-01-28
Abstract: 942,656. Bearings. CAM GEARS Ltd. Jan. 28, 1960 [Jan. 28, 1959], No. 3079/59. Heading F2A. A two-ply bearing, e.g. for a steering column 1, comprises a bearing layer 3 of felt or felt-like inert relatively hard material and a backing layer 4 of rubber or rubber-like material. The backing layer may be formed with projections to provide an interlock between the two layers and increased resiliency. The felt layer may be impregnated with graphite.
Patent GB-782852-A (GB)
Title: A device for varying the effective nozzle area of a rocket or other jet propulsion unit
Inventor: KADOSCH MARCEL
IPC: F02K1/30
Filed: 1955-02-03
Abstract: 782,852. Jet propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Feb. 3, 1955 [Feb. 11, 1954], No. 3230/55. Addition to 745,630. Class 110 (3). A rocket or jet propulsion unit having a jet propulsion nozzle as claimed in the parent Specification in which the area of the propulsion nozzle is varied by means of an annular auxiliary jet inclined upstream with respect to the flow through the nozzle, has the passage extending around the end of the nozzle supplied with motive gas tapped from the main stream in the nozzle in a part thereof upstream of the end of the nozzle or in a part of the unit in direct communication with the nozzle. In the arrangement shown, gas from the main jet flow enters an annular conduit formed between the surface ABC of an annular body mounted in the propulsion nozzle and the propulsion nozzle casing. This gas is expanded in the nozzle CF. The annular body is attached by arms 1 to pistons 3, 31 mounted in a cylinder 6. Springs 8, 81 maintain the pistons 3, 3<SP>1</SP> in the mean position. When it is desired to vary the effective area of the propelling nozzle, compressed air is supplied through one of the conduits 7a, 7<SP>1</SP>a and the annular body is thereby moved to increase or decrease the width of the nozzle CF. In a modification applied to a rocket, an annular conduit, arranged around the end of the nozzle, communicates with the main flow through an annular slot. This conduit is supplied with fluid from the combustion chamber of the rocket through a by-pass pipe provided with a butterfly control valve. This valve may be automatically controlled by speed or altitude or by a clockwork movement.
Patent GB-233422-A (GB)
Title: Improvements in or relating to brackets for mounting adjustably on vertical supports
IPC: A47B57/56
Filed: 1924-02-07
Abstract: 233,422. Alford, C. R. Feb. 7, 1924. Brackets, adjusting and securing.-A bracket having a pivoted member such as a strap or lever arranged to engage a vertical support and bind on it when a load is applied, is provided with a roller 16 having on its edge knife-edges or other gripping devices. The roller binds on the support 14 when a load is applied, but is free to rotate during adjustment, and may be placed on the pivoted strap 22 to serve as a guide for the bracket 11. The pivoted strap is cranked, having one limb substantially horizontal pivoted at its free end to the bracket and the other inclined and embracing the support. The strap binds by canting and a spring 26 yieldingly holds it canted, the roller 16 being mounted in the strap near the angle formed by the limbs. The strap comprises two plates 22, 23 detachably connected at their outer ends by a pin 24 traversing them and a hook 25 on one engaging a recess in the pin. The edge of the roller is mounted between and in line with the face on an upper guide 12 and the bottom end of a fork 13 on the bracket, which is strengthened at the recess 15 for the roller by flanges 20 receiving a pin 21 on which the strap is pivoted. Specification 212,073 is referred to.
Patent GB-572508-A (GB)
Title: Improvements in and relating to apparatus for radio direction finding and indicating
IPC: G01S7/40
Filed: 1940-02-21
Abstract: 572,508. Instructional directionfinding apparatus. REDIFFUSION, Ltd., and ADORJAN, P. Feb. 21, 1940, No. 3277. [Class 40 (v)] Pupils are taught to take direction-finding readings by means of an instructor's apparatus arranged to transmit currents of varying amplitude or phase to a number of pupils' apparatus so as to simulate the phenomena of an actual direction-finding receiver. As shown, the instructor's apparatus T comprises an oscillator 1 feeding an adjustable coil 5 rotatable in the field of crossed coils 3, 4 to vary the relative amplitude of the voltages induced therein. Each pupil's apparatus R, R<1> comprises an adjustable pick-up coil 10 rotatable in the field of coils 8., 9 fed by connecting wires from, the coils 3, 4. The pick-up coil 9 is connected as the input of a receiver set 11 which enables the pupil to ascertain the apparent direction by listening for maximum or minimum signal. The instructor varies the apparent direction by rotating the coil 5. A second oscillator 17 on a different wavelength may be provided, thus simulating the taking of cross bearings: Noise and interference may be provided by connecting a receiver 14, receiving normal transmissions, to the pupils' sets. A sense signal may be provided via the wire connection 13. By continued variation of the transmitter coil positions, as by means of cams, the pupil may plot his apparent course. In a modified system, the instructor varies the relative phases of the emitted signals. These are received by amplifiers, one of which includes a phase-adjusting device, and are combined in a common circuit. The pupils determine the bearing by adjusting the phase-changing device for minimum or zero. current in the common circuit.