baber/WOPTO huggingface dataset:
Patent GB-912947-A (GB)
Title: Process for preparing oxazolidinone compounds
Filed: 1961-04-27
Abstract: 5-Aryloxymethyl-2-oxazolidinones of the formula:-  <FORM:0912947/IV (b)/1> in which Ar represents a substituted or unsubstituted phenyl group free from a substituent or substituents which would render the compound too toxic if administered at a therapeutically effective rate are prepared by reacting a urethane H2NCOOR, in which R is a lower alkyl group, with a 3-aryloxy-1,2-epoxypropane at a temperature in the range 140-180 DEG C. and in the presence of an alkaline catalyst, being lithium or a lithium base or a tertiary amine or a betaine, e.g. lithium amide, lithium hydroxide, triethylene diamine, betaine and tetramethylguanidine.  Examples detail the preparation of 5-aryloxymethyl-2-oxazolidinones, including those in which the aryl group is an alkyl-, alkoxy- or halo-substituted phenyl radical. Reference has been directed by the Comptroller to Specifications 834,968 and 838,759.
Patent GB-790183-A (GB)
Title: Tool handle
IPC: B25G1/10
Filed: 1956-05-16
Abstract: 790,183. Hand-tool handles. WALHEIM, O. O. May 16, 1956, No. 15273/56. Class 61. A handle for a file or like reciprocating tool comprises a hand-grip portion 1 disposed obliquely to the longitudinal axis of the tool and connected by one or two arms 2 to a conical tool receiving sleeve 3. The arrangement is such that the axis of the sleeve extends through the middle portion of the hand-grip 1. A plug 4 bored to receive the tang of the tool is provided with an axial slot to impart resiliency. The plug abuts against an annular shoulder 5 when driven into the sleeve 3.
Patent GB-615675-A (GB)
Title: Improvements relating to the manufacture of bi-metal articles by a centrifugal casting operation
IPC: B22D19/00
Filed: 1946-05-20
Abstract: In the manufacture of bi-metal brake drums and like articles composed wholly or in part of a plurality of integrally united layers of respectively different metals, including a layer of cast iron formed in situ by a centrifugal casting operation, a suitable flux to be applied to the surface on to which the cast iron is to be cast comprises a compound of boron, an alkali or alkaline earth metal, and oxygen (e.g. a borate such as borax, or a calcium salt of boric acid such as colemanite, borocalcite, boronatrocalcite), and a "deoxidiser" having a greater affinity for oxygen than has iron under the conditions of casting and whose oxides are stable under the said conditions in the presence of carbon (e.g. aluminium, calcium silicide, ferro-silicon, calcium manganese silicide, silicon-manganese-zirconium alloys such as that known as "S.M.Z.," or a mixture of any two or more of such substances).  There may also be included in the flux boric acid in amounts up to that of the boron compound, an alkali metal silicate or carbonate up to 3 times the amount of the boron compound, reduced iron powder and/or glass up to 25 per cent of the weight of the flux, and a binder, e.g. shellac up to 2 per cent of the weight of flux.  The flux may be applied in methylated spirit or other suitable volatile medium, or in water, or directly in powdered form by, for example, spraying.  The material "S.M.Z." is said to comprise 60-65 per cent Si, 5-7 per cent Mn, 5-7 per cent Zr, and approximately 20 per cent Fe.
Patent GB-420304-A (GB)
Title: Improvements in and relating to means for obtaining constant voltage from variable speed dynamos
IPC: H02P9/24
Filed: 1933-05-29
Abstract: 420,304. Automatic regulation; dynamoelectric machines. DYNAMIC DEVICES, Inc., 2973, Kingsley Road, Cleveland, Ohio, U.S.A. May 29, 1933, No. 15463. Convention date, June 3, 1932. [Classes 35 and 38 (iv)] The voltage of a variable-speed generator is rendered constant by the provision of a constantly energized auxiliary field winding opposing the main field winding and partially neutralizing it, thereby producing very rapid changes of flux on the operation of a vibratory contact in the main field circuit. This contact may be operated by the flux of the neutralizing winding as indicated in Fig. 1, where a resistance 47 in series with the main field windings 6 is intermittingly short circuited by a contact 25 subject to the flux of the neutralizing winding 7. As shown in Fig. 2 the contact 25 is operated by the flux of a ferrous core member 13 embracing the winding 7 and secured in a cut-away portion of the field yoke 1. The winding 7 occupies one pole of a four pole machine and the main windings 6 occupy the remaining poles. Preferably the winding 7 is weaker than a winding 6. In another arrangement, Fig. 4 one winding 7 has a part 71 in series with the contact 25, and the windings 6 discharge through this part, the resistance 47 being omitted. The flux of the winding 7 may operate a reverse current cut-out 161 as indicated in Fig. 5. An overload coil in series with the dynamo output may insert a resistance in series with the main field windings 6 on excess current demand. In an application of this method of voltage regulation to a third-brush current-regulated generator the main field winding circuit is connected in series with the third brush and the neutralizing winding across the main brushes. In a bipolar generator a neutralizing winding 182 is arranged on one of the field poles in addition to the main winding 6, and the vibrating contact 25 may be arranged as indicated in Fig. 8. The invention may be embodied in accessory apparatus, Fig. 10, consisting of a base 203 secured in a gap in the field yoke by a single screw 204. The base carries the vibrating switch and a neutralizing coil 196 adapted to encircle one field pole and to energize a magnetic member 213 operating the switch. In a modification the neutralizing winding 196 is coiled around a core energizing a co-operating spring-mounted armature carrying the switch contact.
Patent GB-110794-A (GB)
Title: Improvements in and connected with Tent Poles.
Inventor: MCGREGOR JAMES STRANG
IPC: E04H15/60
Filed: 1916-11-01
Abstract: 110,794. McGregor, J. S., (McGregor, C. S.). Nov. 1, 1916. Tent poles.-A tent pole is provided with spring means to give and take under atmospheric changes. In one arrangement, Fig. 1, the upper part a of the pole is connected to the lower part d by a socket b containing a spring e. In another arrangement, Fig. 2, the pole i has resilient feet g, Reference has been directed by the Comptroller to Specifications 2468/98, 16062/98, a n d 16555/08.
Patent GB-542790-A (GB)
Title: Improvements in laminated blades for airscrews
IPC: B27M3/10
Filed: 1940-10-25
Abstract: 542,790. Screw propellers. HILLS & SONS, Ltd., F., and SYKES, N. Oct. 25, 1940, No. 15675. [Class 114] An airscrew blade comprising an assembly of laminated boards is strengthened at selected parts by arranging the plane of laminae in some of the boards at a substantial angle to the plane of the boards. As applied to the blade described in Specification 542,791 and comprising laminated boards 2 .. 6 each consisting of spliced parts, the threaded root R<SP>1</SP>, R<SP>2</SP> is strengthened to resist centrifugal shear, by arranging the laminae in the parts 2a, 6a vertically so that the shearing zone crosses the glued joints of the laminae transversely. The laminae may be arranged in two or more planes which are approximately radial to the root. The parts 3a, 5a may have the laminae arranged radially to the root.
Patent GB-821245-A (GB)
Title: An open-topped basket for fruit, vegetables, vegetables, potatoes or the like
IPC: B65D5/20
Filed: 1956-05-22
Abstract: 821,245. Cartons. ZELLSTOFFABRIK WALDHOF. May 22, 1956 [May 24, 1955 June 29, 1955; Oct. 7, 1955], No. 15720/56 Class 18. A tray-form carton made from corrugated cardboard has at least two trapezoidal side walls, inner walls joined to the side walls by edge strips, and an inner base panel, the corrugations of which are at right angles to those of the outer base panel. In one embodiment, inner walls 3, 7 are attached to outer walls 2, 5 by edge strips 12, 13, the walls 5 having flaps 6 for enclosure between walls 2, 3. Extensions 4 lie on the outer base 1 inwards of the walls 3 and extensions 8 lie between walls 5, 7. A separate base panel 9 fits within the carton. In other embodiments the walls 5, 7 and flaps 6 may be formed from separate blanks glued to to the base panel 1, the corrugations running at right angles to the length of these walls. The panel 9 lies between the inner edges of the separate blanks and the extensions 4 abut the panel, Fig. 8. The walls 7 may have flaps for enclosure between the walls 2, 3. All outer side walls may be tapezoidal and be joined by gussets 24, the latter being enclosed between walls 5, 7, Fig. 10, and the walls 7 bearing flaps 23 for enclosure between the walls 2, 3. Ventilation holes may be provided. The cardboard may be waterproofed by impregnation.
Patent GB-1075161-A (GB)
Title: A process for preparing a dry free-flowing glucose product from a solution thereof
IPC: A23L27/30
Filed: 1965-04-13
Abstract: A dry free-flowing glucose product having a dextrose equivalent value of 70 or above is prepared from a solution thereof by a process comprising the steps of supplying the solution and recycled solids to a spray drying apparatus, withdrawing from the spray drying apparatus the solidified particles formed therein, subjecting the solidified particles to a flow of drying and cooling air, and then recycling a portion of the solidified particles to the spray drying apparatus at a rate higher than the rate of supply of the solution calculated as dry matter.
Patent GB-377361-A (GB)
Title: Apparatus for pasteurizing liquids in containers
IPC: A23L3/12
Filed: 1931-05-29
Abstract: 377,361. Pasteurizing liquids. MARSHALL, J. S. C. and CLAYTON, G. S., St. Anne's Works, St. Anne Street, Limehouse, London. May 29, 1931, No. 15749. [Class 49.] Apparatus for pasteurizing liquids in containers by immersion in water or other liquid comprises pasteurizing chambers in the form of trays 10, Fig. 3, arranged in two or more tiers on a rack 21 so that at least one tray of each tier is placed simultaneously into communication with a common water supply main 20 and a common drain 37. Water at predetermined temperature flows evenly distributed through each tray, entering from the main 20 through a control valve and a multi-jet or slotted pipe 17 an inflow chamber B and passing therefrom to the pasteurizing chamber D and thence over a weir 15, which is adjustable in height, to the outflow chamber C which has an outlet 16 registering with a mouth 39 on the drain 37. The water is supplied from a tank 23 initially filled through a ball-controlled water inlet 32 and has a steam heating coil 34. The outflow water passes from the drain 37 to a trough 38 from which it is returned by a pump 40 through a pipe 33 to the tank 23 which it enters through upper and lower inlets to maintain an even temperature therein. The tank 23 may have an additional cold water supply or a brine-circulating coil to cool the water gradually for cooling the containers after pasteurization. The trays 10 are slid in and out of the rack 21 on rollers 25 and a portable loading platform the floor of which is formed by rollers 30 can be attached to the rack by engagement with projections 27 thereon. In a modification, Figs. 4 and 5, the trays 10 are carried in two tiers on a circular rack 43 which has wheels 44 enabling it to be rotated on circular rails 45. Water is supplied to the trays from pipes 46a .. 46f as they rotate, the temperature thereof rising from warm, from pipe 46a, to pasteurizing, from pipe 46c, and then falling to normal or chilling, from pipe 46f. Troughs 47 collect the outflow from the trays 10. Plates 53 bridge the gaps between the trays under the water supply pipes. Loading and unloading platforms 49 are provided. Modifications employ one supply pipe only, or all the pipes supplying heated water at a uniform temperature, and a common outlet trough.
Patent GB-294345-A (GB)
Title: Improvements appertaining to the formation of blocks, monoliths or the like to be used as stairs or steps
IPC: E04F11/022
Filed: 1927-06-14
Abstract: 294,345. Concrete, Ltd., Ambrose, J. G., Mathews, C. B., and Holt, R. June 14, 1927. Stairs.-Stairs or steps. Fig. 6, are formed of moulded units each comprising a tread a integral with a riser b and with skirting portions d at or near the ends, leaving a length to be built into the wall f. The angles between tread, riser, and skirting are concave. In a modification shown in Fig. 7, the riser b is at the front of the tread and is recessed to engage a rib on the tread beneath. The units may be moulded from concrete, clay, earthenware, or metal, and may be reinforced with a network h and rods h<1>. Renewable tiles or wooden treads may be inserted in the tread and riser faces to compensate for wear.
Patent GB-976275-A (GB)
Title: Improvements in or relating to thread cutting or trimming mechanism for sewing machines
IPC: D05B65/00
Filed: 1963-04-23
Abstract: 976,275. Sewing machines. G.M.PFAFF A.G. April 23, 1963 [April 26, 1962], No. 15883/63. Addition to 954,734. Heading D1G. In a sewing machine having a device which is adapted to catch the needle and looptaken threads and to feed these simultaneously to a stationary cutter, is of armate shape in conformity with the periphery of the looptaker, and is mounted between the looptaker and the feed dog on a carrier which is co-axial with the looptaker and which is in disengageable driving connection with the looptaker shaft, a control shaft parallel with the looptaker shaft comprises two coupled parts, one of which is connected to the thread-catching device, and the other of which is axially displaceable by a spring into operative engagement with rotary drive means associated with the looptaker shaft, one end of the spring abutting a member fixed to the displaceable part, and the other end abutting a sleeve which is displaceable on the displaceable part by foot or hand operated means. The looptaker 15 is carried by a shaft 14 coupled by gearing 12,13 to a shaft 11 coupled by a resilient belt 9 to the arm shaft 5. The thread catcher 17, similar to the thread catcher described in Specification 954,734, is connected by a link 23 to a crank 24 on a shaft 27. A bar 30, axially projecting from shaft 27, slidably engages a slotted collar 31 fast with an axially displaceable shaft 28 to couple the shafts rotatably together. A spring 32 biases bar 30 against a fixed stud 33 to retain the catcher 17 in an inoperative position. An arm 48 has an end which is journalled on shaft 11 and is biased by a spring 49 into engagement with a friction disc 52 fast with shaft 11, whereby arm 48 engages the end face 47 of a collar 46 fast with shaft 28 to maintain a follower pin 42, on a crank 41 on shaft 28, out of engagement with a cam groove in a cam disc 43 fast with shaft 11. A spring 35 is positioned between a collar 34 fast with shaft 28 and a sleeve 36 slidable on the latter. A lever 38 has one end forked to engage sleeve 36, and the other end connected by a link 40 to a treadle, depression of which, while the machine is running, serves to stress spring 35. When the machine stops, dissipation of the energy stored in belt 9 turns shaft 11 momentarily in the reverse direction, whereby arm 48 moves clear of collar 46, and spring 35 moves shaft 38 axially to engage follower 42 with cam 43. When the machine is re-started, shafts 27 and 28 are thereby rotated to operate the thread-severing device. On release of the treadle, shaft 28 is moved axially by a spring 44 to disengage the follower pin 42. It is stated that arm 48 may, alternatively, be operated positively by any suitable means. When shaft 28 moves in the cam-engaging direction, an inclined surface 54 on collar 46 cooperates with a pin 55 on one arm of a lever 57 for turning the latter to release the tension in a thread-tensioner 62 via a linkage 59, 60, 61.
Patent GB-438901-A (GB)
Title: Improvements relating to presses for use in testing materials
IPC: G01N3/10
Filed: 1934-05-28
Abstract: 438,901. Hydraulic &c. presses. SPEAKMAN, J. D., Westside, Lowton St. Mary's, Warrington. May 28, 1934, No. 15914. [Class 69 (ii)] [See also Groups XIX and XXVI] In a testing-press employing liquid or gaseous pressing medium, a receptacle for the medium comprises stationary and movable elements connected at their adjacent peripheries by an annular flexible diaphragm. In the form shown, the movable bottom plate e<3> is connected to a base member a<1> by a flexible diaphragm f, secured to flanges e<1>, a<2> by annular plates h bolted in position. Pressure fluid is admitted to the chamber i. The diaphragm may be of steel, preferably chromium or stainless steel, or reinforced rubber, and it may be concentrically corrugated. In a modification, the base member a<1> may be of greater diameter than the plate e<3>. The upper platen d is vertically adjusted by a screwed spindle j, a threaded sleeve k and worm gearing.
Patent GB-1068954-A (GB)
Title: Tow crimping apparatus
IPC: D02G1/12
Filed: 1964-04-17
Abstract: Filamentary tow, as formed into a flat band or ribbon (7) of uniform width and thickness by passage over one or more guides (as at 6) and between side confining guides (as at 10a, 10b), is uniformly crimped in a stuffer-box, Figs. 1-3 (not shown) partly constituted by side (extension) plates (3a, 3b) top and bottom doctor blades (4a, 4b) and front and back plates (5a, 5b) into the space between which the tow is forced by positively driven rolls (1, 2).  The upper roll is pivotably supported, so that different thicknesses of tow may be fed through the nip of the rolls, and loaded by a weight, spring or fluid pressure e.g. as determined by the diaphragm of a valve (25), Figs. 5 and 6 (not shown) carried on a fixed member (24) and acting through a pin 26, on a pivoted housing (22) for the roll shaft.  A pivoted gate, actuated by pneumatic bellows or diaphragm, spring or weight, restricts the discharge of filaments from the crimper.  Finishing agent is applied to the filaments and cooling and lubricating liquids are sprayed on the side surfaces and faces of the rolls.
Patent GB-998485-A (GB)
Title: Improvements in and relating to rail retaining spikes
IPC: E01B9/08
Filed: 1962-04-26
Abstract: 998,485. Spikes. HOFLEX A.G. April 26, 1962 [April 26, 1961; Dec. 15, 1961], No. 15948/62. Heading F2H. A rail retaining spike in the form of a spring nail comprises a drive pin 2, with leaves 3 and 4, the upper end of leaf 3 being bent over to form a spring head 8 with a thrust piece 9 which presses the foot of the rail on to the sleeper 5. The upper end 4a of leaf 4 constitutes a rail-guide-piece of the drive pin 2 and lies flush with the top 10c of the edge of the foot of the rail. This also acts as a measure of the depth to which the pin has been driven in.
Patent GB-1473279-A (GB)
Title: Pressure die-casting processes
IPC: B22D17/00
Filed: 1975-04-18
Abstract: 1473279 Pressure die casting processes NIPPON LIGHT METAL CO Ltd 18 April 1975 [19 April 1974] 16087/75 Heading B3F A method of die casting comprises flushing the die cavity 4 with a gas which will react with the metal to be cast, injecting metal into the reactive gas-filled cavity and thereafter forcing a member 10 into the metal in the cavity while said metal is still partially molten. The member 10 consists of a rod connected to an hydraulic cylinder 11 and the reactive gas is introduced into the cavity 4 and injection sleeve 6 through a nozzle 9. The reactive gas may be oxygen when casting zinc, aluminium or magnesium.
Patent GB-297150-A (GB)
Title: Improvements in or relating to the manufacture of nails or the like
IPC: B21G3/28
Filed: 1927-06-17
Abstract: 297,150. British United Shoe Machinery Co., Ltd., and Cooper, B. P. June 17, 1927. Rolling and forging nails.-A machine for making wire nails &c., particularly for use in shoes, has four die-carriers A - - D mounted on spherical seats so that the die faces may remain in contact throughout the working operation. The carriers are forced into mutual contact by spring &c. plungers E, and the seats of any two adjacent die-carriers are radially slidable under the control of cams to allow the wire to be introduced. The first part of the nail shank is formed by pressure resulting from the inward movement of the sliding seats, after which the nail is headed by a tool G, Fig. 2, the dies being supported by adjustable stops during the heading operation. On the withdrawal of the heading tool the diecarriers are moved upwards, as by a ring coaxial with the stock, to complete the formation of the shank by a rolling action. The completed nail is then severed. The dies may be integral with or may be mounted on the carriers. The carrier seats are slightly offset to prevent parting of the die faces during the rolling operation. Specification 212,528 is referred to.
Patent GB-1197081-A (GB)
Title: Improvements relating to Taps for Controlling the Flow of Liquids
Inventor: DAVIES ALAN JAMES EDWARD
IPC: F16K31/50
Filed: 1967-04-08
Abstract: 1,197,081. Valves. MARKES & CO. Ltd. 29 April, 1968 [8 April, 1967], No. 16201/67. Heading F2V. A " non-rising spindle " tap has a stationary tubular head 32 with a groove 68 to engage a projection 70 on the spindle and prevent axial movement thereof, the projection being disengageable from the groove by transverse movement when the spindle is not connected to a closure member 20. The valve is assembled by inserting the spindle 62, with the circular eccentric projection 70, into the head 32, and moving it transversely until the axes of the two parts are aligned, and then screwing the closure member 20 on to the spindle, the diameter of the projection 70 being equal to, or less than, the mini mum width of a hexagonal portion of a bore 42 in the head 32, to facilitate this operation Seals 52, 79, 84 and 38 prevent leakage of the fluid in the valve. In Fig. 3, not shown, the closure member 20 is formed with a loose jumper (92) to prevent back-flow. Only one seal 79 or 84 may be used. The valve inlet can be axially aligned with the spindle. The head 32 may be of multi-piece construction. A knob 18 can be made from metal or plastics, and may be formed as a hand-wheel.
Patent GB-329847-A (GB)
Title: Improvements in or relating to surface cleaning devices
IPC: A47L11/34
Filed: 1929-05-27
Abstract: 329,847. Wier, S. A. May 27, 1929. Casings. - A surface cleaning device of the type used in garages, and comprising a steam generator with a nozzle through which cleaning medium is impelled, is so constructed that the steam generator furnace is maintained impervious at all times to air from inside the garage, thus preventing fire or explosion. The details of the cleaning device are substantially the same as described in Specification 302,830. An upright cylindrical casing 10 in which a coiled steam generator 14, Fig. 3, with three pipes 15, 16, 17, is located, has an enlarged firebox 11, and is surmounted by a conical cap 13. The pipe 16 is connected to the water supply, and the pipe 15 is connected to a branch pipe 20 leading to a detergent tank 21. A hot water pipe 22 and a steam pipe 23 extend from the generator 14 to an atomizer 24. The casing. 10, firebox 11, and cover 13 are unperforated except where guarded pipes are passed therethrough. A single air opening 26 is made in the firebox communicating with the atmosphere outside the garage. The parts of the firebox are packed with asbestos and riveted together, and the various pipes are packed and bolted where they pass through the casing 10 &c., making air and water tight joints. A flue 46 conveys fumes outside the building.
Patent GB-500849-A (GB)
Title: Improvements relating to book form match packages and analagous packages
IPC: A24F27/12
Filed: 1938-05-31
Abstract: 500,849. Book-form packages for matches and the like. POLACSEK, M. May 31, 1938, No. 16277. [Classes 16 and 146 (i)] [Also in Group XVII] A package, of the book - form matchpackage type, is constituted by a sheet of leather, cardboard, cloth, &c. formed into panels 10, 12, 13, 14 constituting the front, back, bottom and front flange, and is provided with a pivot 17 around which sheets 15, 15<1> ... , of cardboard, leather, metal, &c. can rotate. Slots in the base permit the sheets to be rotated into accessible position. The sheets may constitute memorandum cards or index cards.