baber/WOPTO huggingface dataset:
Patent GB-334609-A (GB)
Title: Improvements relating to steam ejectors for the vacuum brake apparatus of railway and like vehicles
IPC: B60T13/46
Filed: 1929-06-08
Abstract: 334,609. Metcalfe, R. D., and Metcalfe, J. C. June 8, 1929. Ejectors for vacuum brakes for locomotives &c. - The ejector is divided into two parts; one is arranged in the cab and comprises control handles and a brakeapplication valve, and the other is arranged at the smoke-box end of the boiler and comprises the ejector nozzles and steamcontrol valves. The arrangement facilitates the use of superheated steam. The brakeapplication valve and the steam-control valve are interconnected. The handle a controls a valve to admit air to apply the brake, and operates a spindle f with a cam c thereon which controls a valve whereby a pipe d leading to the ejector and under the action of the auxiliary ejector is connected to a vacuum reservoir e. The spindle f through a shaft g, a spindle h, and a cam i controls the main ejector steam supply to restore the vacuum. A handle o is connected up to control the auxiliary ejector steam supply. Vacuum-gauge connections r, s, a drip pipe t, and a hand-controlled valve for breaking the vacuum in the reservoir, are provided. A steambrake, control fitting may be provided on the cab portion of the ejector.
Patent GB-586651-A (GB)
Title: Improvements relating to locking means for sliding parts or members
IPC: A47C7/42
Filed: 1944-09-18
Abstract: 586,651. Friction grips for rods, window stays and holders. CHESTON, A. S., EDMONDS, E. C., CHESTON, B., and PRESSLY, A. D. Sept. 18, 1944, Nos. 17764, 17765 and 17766. [Classes 44 and 65 (i)] A locking device for holding sliding rods or like members of the type using an apertured clutch plate through which the rod passes, the plate being tilted by a spring so that the edges of the aperture bind upon the rod, has the clutch plate of L-form, one arm 5, Fig. 3, having the aperture, the free end 6 of the other arm being pivoted. The invention is applicable generally, inter alia, to control rods for engine and other valves, stays for hinged windows or panels, adjustable or sliding seats, sliding windows, and drop sides of cots. Fig. 3 shows the application to a stay rod 16 for a hinged window or the like 17. The rod is pivotally connected to the window to be movable about two perpendicular axes. The rod slides through an aperture 24 in the front wall of a support 22 and normally clears the rear wall, the clutch plate being pivoted within the support on a pivot pin 7 which also serves to pivotally mount the support for movement about a horizontal axis between the castor-like arms of a bracket 23 which is itself pivoted at 26 for movement about a vertical axis. Swinging movement of the support occurs automatically as the window is moved. When the window is closed the rod lies parallel thereto and may be engaged under a hook, not shown, to secure the window shut. The clutch plate is biassed to engaged position by a plate spring 8 mounted within the support. The rod may be pushed to the left with stiff movement but is held against reverse movement unless depressed to tilt the plate to release position, this depression being limited by the rear wall of the support which the rod normally clears. The stay rod may be notched, and according to the third Provisional Specification may be rotatable to bring the notches into and out of operative position. A modification is described in which there are two opposed clutch plates so that the rod is held in both directions unless depressed. In another modification for a control rod the support is a fixture. Fig. 7 shows the application to holding a sliding window 40, the clutch plate holding a rod 51 swingably supported in the window channel by a part-spherical head 52 resting in a correspondingly shaped seat. In this case the clutch plate is positively moved to release position by the camming action on the plate edge 57 of a depending arm 56 carried by a rockable horizontal rod 46 at the top of the window, a similar arm at the other end of the rod simultaneously releasing a similar clutch at the other side of the window. The first Provisional Specification refers to Specifications 505,703, 508,151, 551,808, and 560,404, [all in Group XIV], as showing adjustable seats to which the invention may be applied.
Patent GB-784704-A (GB)
Title: Articles comprising boron nitride and refractory oxide and the manufacture thereof
IPC: C01B21/064
Filed: 1955-06-21
Abstract: Shaped refractory are made by hot pressing at 1400 DEG -1900 DEG C. in an inert atmosphere a mixture of boron nitride and refractory oxidic material.  An inert refractory filler, e.g. a boride or silicide may also be present.  Specified oxidic materials are alumina, beryllia, thoria, zirconia singly or in admixture, refractory silicates, aluminates and porcelains.  The shaped bodies may be crushed to form granules which may be subsequently bonded, e.g., by metals.  Specifications 742,326 and 777,000 [both in Group III] are referred to.
Patent GB-779101-A (GB)
Title: Improvements in reeling apparatus for sheet material
IPC: B65H18/20
Filed: 1955-06-21
Abstract: 779,101. Feeding webs. JAGENBERGWERKE AKT.-GES. June 21, 1955 [June 29, 1954], No. 17899/55. Class 100(1) A guide slot 22 for the ends of a winding spindle 1, supported on a pair of drums 4, comprises a pair of rails 5, 6, the rail 6 being pivotally mounted on a frame 2. The rail 6 is carried by arms 9 pivotally mounted on pins 8, thus permitting the rail 6 to be swung away from the rail 5 when it is desired to introduce or remove a winding spindle 1. The rail 6 is locked in operative position by spring-pressed plunger 16, Fig. 3, which engages a member 19 on the frame 2. The plunger 16 and member 19 have co-operating curved surfaces 20 and 21 to facilitate engagement The plunger 16 is release by actuation of a handle 11; about pins 13 in the direction of the arrow. A sleeve 24, Fig. 4, having bearings 34 and 35 and mounted on the spindle end 23, has a screwed pressure pad 25 which engages a rail 28, Fig. 2, that serves as a guide for a pressure roll 29. Figs. 1 and 7, not shown. Rings 30, Fig. 4, provide axial adjustment of the spindle while a spring ring 31 engaging a bore 33 in the pad 25 retains the pad in position.
Patent GB-605332-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F7/09
Filed: 1945-07-13
Abstract: 605,332. Shock-absorbers; friction damping. THOMPSON PRODUCTS, Inc. July 13, 1945, No. 17922. Convention date, Nov. 8, 1944. [Class 108 (iii)] A shock-absorber comprises a cylinder 10, at least one friction unit having an expansible sleeve 20 slidable in the cylinder 10 and cooperating with a tapered expander 22 having a recess provided with axially-spaced abutment-means 40, 40a, and an actuating rod 12 coaxial with the cylinder 10 and sleeve 20 and having shoulder means 35 confined with limited axial movement in the recess for forming a lost-motion operating connection between the rod 12 and expander 22. In the form shown in Fig. 1, the abutment means comprise a plate 40 at the open end of the recess and a shoulder 40a. The shoulder means comprises a hexagonal nut 35, the length of which is less than the distance between the abutments 40, 40a by a distance 42 which is the degree of lost motion. A second expander 21 is urged by springs 36, 37 into engagement with the sleeve 20 and is displaceable against the spring through a distance 41 from an abutment 38, which is slightly greater than the distance 42. The sleeve 20 comprises segments held by a spring ring 27. The expander 22 is of lobular cross-sectional shape to prevent rotation itself and of the shoulder 35, about the rod 12. Lubrication is provided by a quantity 44 of loose dry calcium stearate powder which is agitated by the displacement of a spring 45. The working surface of the cylinder 10 is case hardened. In operation on inward movement of the rod 12, the shoulder 35 drives the expander 22 outwards from the sleeve 20 and the expander 21 is driven inwards, only by the springs 36, 37, since the distance 41 is greater than the distance 42. On outward movement (rebound) the shoulder 35 engages the abutment 40a and fully engages the exexpander 22 with the sleeve 20 to provide maximum damping. In a second construction (Fig. 4, not shown), two sleeves 20, each with associated expanders 21 and 22 are arranged in tandem on the rod 12.
Patent GB-1309444-A (GB)
Title: Connector for beam storage rack
IPC: A47B57/40
Filed: 1970-04-15
Abstract: 1309444 Racks PALMER-SHILE CO 15 April 1970 [1 May 1969 2 Sept 1969] 18032/70 Heading A4B A storage rack comprises horizontal beams 14 with end connectors 19 having vertically spaced teeth 22-24 detachably engaged in louvres 16 pressed out of support posts 12, at least one of the teeth having an upwardly extending resilient locking tab 25 which snaps into position beneath the louvre 16 above that in which the tabbed tooth is engaged. The tab 25 requires to be prised away from the post 12 to release the connection. The ends of the teeth are bent towards the adjacent post and may be twisted out of the general plane of the teeth (103-105,) Figs.6, 7 (not shown).
Patent GB-135806-A (GB)
Title: Improvements in or connected with Shoes Comprising Rubber Parts or Elements.
Inventor: EGERTON HENRY CLIFFORD
IPC: A43B13/12
Filed: 1918-10-28
Abstract: 135,806. Egerton, H. C., and Duncan, H. L. Oct. 28, 1918. Connecting uppers to insoles and soles; soles.- Relates to the manufacture of reinforced rubber shoe elements, such as shoe soles, and to shoes in which such elements are incorporated, and consists in forming such elements of a compound fabric of rubber and one or more layers of canvas or other woven, fibrous, or porous material impregnated or coated with phenolic condensation cementing-material. The use of such impregnated material for stiffening shoes is described in Specification 135,555. The rubber soles may be formed separately from the shoe by assembling the impregnated fabric with the rubber and then subjecting the assembled layers to heat and pressure, if desired in suitably shaped moulds; or, where the nature of the other shoe materials permits, the sole may be positioned on the shoe and then cured. Fig. 1 shows a boot in which the various shoe elements are made of fabric impregnated with phenolic condensation cementing-material, as described in the above-mentioned Specification, but with a sole 20 and heel 21 of rubber which are vulcanized and united to a throughsole 19, optionally provided with a rubberized coating 93, simultaneously with the curing of the other shoe elements. The heel 21 may be further secured by the provision of embedded flat-headed rivets. Fig. 3 shows a sole in which two layers 26, 27 of impregnated fabric with an intermediate layer 28 at the shank are assembled with a rubber layer 25, the edge of the fabric being reduced in thickness or, as described in the above-mentioned Specification, arranged to contain a relatively small amount of the impregnating-material, to facilitate sewing &c. Fig. 4 shows another construction of sole in which a layer 51 of open-mesh fabric is arranged between two layers 50, 52 of impregnated material and with its edge portion 53 extending into or through the edge 60 of the rubber layer 49. A frictioned or other rubber coating 93 may be applied to the lower surface of the layer 52, preferably before treatment with the impregnating-material. Fig. 5 shows another construction in which impregnated layers 55, 56, optionally stitched together at 61, are incorporated with the rubber layer 49 by providing a projecting edge 92 on the lower layer, and, if desired, by bending down locking-flaps 58, 59 to allow plugs 57 of rubber to project through the layers. Fig. 6 shows a sole chiefly for repair work, in which a wide attaching edge is left at the toe. Rubberized fabric strips 78, 79 having a rubber coating 88 may enclose the impregnated members 81, 82, and may be stitched thereto at 70 before the parts are cured. The rubber sole is provided with a thinner shank 72 preferably having a bevelled portion 85 at its rear edge 74, which may extend over the heel seat of the shoe.
Patent GB-734020-A (GB)
Title: Improvements in or relating to combustion of fuels
Inventor: DOWNES DOUGLAS GEORGE
IPC: F02C9/26
Filed: 1952-07-16
Abstract: 734,020. Automatic control systems SPERRY GYROSCOPE CO., Ltd. Oct. 15, 1953 [July 16, 1952], No. 18051/52. Class 38 (4). In Fig. 1, light from the flame in the combustion chamber 1 of an aircraft gas turbine passes through an aperture 9, a colour filter 10, and a lens 11, to a photo-electric cell 7. Colour filter 10 is chosen to pass only light of the colour corresponding to that of the flame for optimum or near-optimum air/fuel ratio. When this ratio is detected by the photoelectric cell it causes acceleration, through an amplifier (not shown), of an electric motor 19, Fig. 2, rotating a shaft 17, and the increased restriction thus produced by a hole 18 in shaft 17 reduces the fuel supply through a conduit 15 to a conduit 3 and a nozzle 4, Fig. 1. The speed of motor 19 is thus controlled by repeated on/off switching to maintain a predetermined flame colour and hence air/fuel ratio. Secondary air passes through a conduit 12 to the space in front of colour filter 10 to prevent the surface of the latter from becoming obscured by ash and dirt. The photo-electric cell may be cooled by the fuel. Fuel control may, be by a by-pass valve returning fuel to a reservoir. An arrangement in which light is passed through the flame to the colour filter and photo-electric cell is referred to. Application to multi-combustion chamber engines with a separate control system for each chamber is referred to.
Patent GB-481713-A (GB)
Title: Improvements in and relating to variable coupler for electrical systems
IPC: H03H7/00
Filed: 1937-06-29
Abstract: 481,713. Variable condensers. ROGERS RADIO TUBES, Ltd. June 29, 1937, No. 18052. Convention date, Sept. 3, 1936. [Class 37] For coupling two highfrequency circuits in such a way that energy transferred can be varied from zero to a maximum, a source of alternating current 15 is connected between the opposed plates 2, 3 of one set of condenser plates and the load 10 is connected between the opposed plates 1, 4 of a second set, the sets of plates being so associated that in one limiting position the contours and areas of the plates of one set coincide respectively with the contours and areas of the plates of the other set, and in the other limiting position each plate of one set overlaps by equal areas the opposed plates of the other set.
Patent GB-180829-A (GB)
Abstract: 180,829. Glover, W. R., and Smith, J. H. April 5, 1921. Atmospkeric gas burners. - A g a s burner comprises a cup B or the like surrounding a mixing-tube G and provided with a flat annular cover L having a i r inlets M, which are controlled by a flat revoluble plate Q, having corresponding holes R. The cup B is held in position on the gas nipple A by a beaded collar J on the mixing-tube G, which is screwed on the nipple, and carries a pinion C, the stem D of which passes through a gland E and has a turn-button F, the gland E engaging a cut-away portion of a flange N on the cover L. The pinion C engages teeth S on a flange on the plate Q, which is held in position by a spring T.
Patent GB-425891-A (GB)
Title: Improvements in or relating to the production of activated carbon and apparatus therefor
IPC: C01B32/336
Filed: 1933-06-24
Abstract: <PICT:0425891/III/1> <PICT:0425891/III/2> Active carbon is produced from such finely divided carbonaceous material as will evolve gases when heated, e.g. bituminous coal, lignite, peat or wood, by sudden introduction into a zone of incandescent gas so as to raise it immediately to a temperature exceeding 1000 DEG  C., e.g. 1400 DEG C., and decompose it in a fraction of a second to a powdered active carbon, hydrocarbon and other gases.  Activation is enhanced by maintaining the carbon for a time at a lower temperature, e.g. 900 DEG  C., in the presence of the gases, after which it is separated therefrom.  The carbonaceous material may be introduced into a flame of premixed gaseous fuel and air by being carried in suspension in the combustible mixture, and a number of impinging flames may be employed.  Powdered carbonaceous material is fed from a hopper 16 by a worm 17 into a chamber 15 from which it is drawn together with combustible gas from a pipe 19 by an air jet 40 in an injector 39, the mixture being supplied by a pipe 38 to pipes 34, 36 ending in #U-pieces 33, 35 leading to four burners 13, radially arranged in a cylindrical combustion chamber 11 where the carbon is formed and activated.  Activation is continued in the lower part of the chamber 11, connected to the upper part by a neck 14, at a lower temperature which may be produced by cool gases introduced by pipes 25.  The active carbon gases pass through a preheater 21 through which air is forced to the nozzle 40 by a fan 22 and are delivered to a scrubber 23 down which acidulated water passes from a spray 45, the active carbon being removed therefrom by filtration.  According to the Provisional Specification, fusion of the ash content may be prevented by mixing a substance such as chalk with the carbonaceous material. When four nozzles are used the upper combustion chamber may be square in cross-section.  Cooling of the gases may be effected by providing preheating chambers in the connecting and lower chambers. Specifications 206,862, 228,582, and 310,908, [all in Class 90], are referred to.
Patent GB-806798-A (GB)
Title: The synthesis of glutamic acid and novel intermediates therefor
Inventor: SULLIVAN ROBERT HENRY
IPC: C07D207/404
Filed: 1957-06-07
Abstract: dl-Glutamic acid is prepared by reacting a compound of general formula <PICT:0806798/IV (b)/1> where X is a radical convertible by hydrolysis to a primary amino group and which is inert to common oxidizing agents, with an oxidizing agent, such as nitric acid, chromic acid, ozone or potassium permanganate, to form a substituted glutaric acid and hydrolysing to glutamic acid.  The preferred oxidant is 30-70 per cent by weight nitric acid.  The hydrolysis to glutamic acid may be effected by heating with water in the presence of a mineral acid, or by heating with water under pressure, adjusting the pH to about zero and heating.  Preferred groups X are amido or imido, especially when derived from a mono- or polybasic aliphatic or aromatic acid.  Specified types of groups are <FORM:0806798/IV (b)/1> (where R is alkyl or aryl), <FORM:0806798/IV (b)/2> where R1 is alkylene or arylene) and <FORM:0806798/IV (b)/3> (where R2 is a tetravalent aliphatic or aromatic radical). Such compounds may be prepared by depolymerizing dicyclopentadiene to cyclopentadiene, reacting with HCl to give 3-chlorocyclopentene, reacting the latter with ammonia, and protecting the amino group by treatment with an organic monobasic or polybasic aromatic or saturated aliphatic acid or their amide-forming derivatives, such as anhydrides, acyl chlorides and lower alkyl esters.  Examples I, II and III describe the depolymerization, hydrochlorination and amination steps.  In further examples the following are reacted with the 3-aminocyclopentene to protect the amino group: (IV) and (X) phthalic anhydride; (V) adipic acid; (VI) phthalic acid; (VII) pyromellitic acid; (VIII) acetic anhydride; (IX) succinic anhydride; (XI) benzoyl chloride; (XII) dimethylsuccinate.  When using phthalic acid or anhydride to protect the amino group, the oxidation step is preferably carried out with 30-70 per cent by weight nitric acid, in at least about 3 times the quantity of imide, at a temperature between about 30 DEG  and 80 DEG  C., preferably between about 40 DEG and 60 DEG  C.  Specification 490,121, [Group VII], is referred to.
Patent GB-489527-A (GB)
Title: Improvements in or relating to settee-beds
IPC: A47C17/20
Filed: 1937-07-01
Abstract: 489,527. Settee-beds. DUCROT, A. July 1, 1937, No. 18335. Convention date, March 4. [Class 52 (ii)] A convertible settee-bed comprises a seat portion b pivoted to side frames a at its rear edge and combined with a bed-frame formed in three hinged sections c<1>, c<2>, c<3>, the rear section c<1> being rigidly secured to the rear edge of the seat portion b. The seat b is pivoted in journals 1 carried by arms 2 and pivoted to the frames a at 3, guide studs 4 provided on the arms 2 being arranged to move in guide slots 5. The bed-frame sections, c<1>, c<2>, c<3> are hinged together at 6, 7 and carry a flexible mattress support such as crossed steel bands tensioned by springs. An extension member 11 provided on section c<1> carries a castor 12 which rests on the ground when the seat b is lowered to cover the folded bed-frame sections. When the seat is raised the sections c<1>, c<2>, c<3> of the bed-frame are brought into alignment by links 11, 16, 17, 18, 20 with the assistance of springs 21 the section c<2> being supported by a member 14 carrying a castor 15 and the section c<3> being supported at its outer end by a panel d.
Patent GB-659875-A (GB)
Title: A new or improved apparatus for playing a race game
IPC: A63F9/14
Filed: 1949-07-12
Abstract: 659,875. Race games. CHAD VALLEY CO., Ltd., and WHITEHOUSE, F. R. B. July 12, 1949, No. 18347. [Class 132 (ii)] In race games of the type comprising models 18 moved along a flexible track 36 resiliently fixed to one end of a support by elastic loops 38 and adjustable clips 39, 40 and reciprocated by means attached to the other end of the track, the reciprocating means is mounted in a compartment 16 of a container 10 fitted with detachable clamps 42 to hold it on the support. A connecting piece 33 is pivoted to the track at one end, passes through holes 35, 34 in the container and in a transverse partition 13 and co-operates with a lug 32 on a bar 29 having a cam-follower 28 acted on by cam surfaces on a disc 26 keyed to a horizontal shaft 19 having a detachable handle 22. Each cam surface is steep on one side only so that on rotation of the handle, the track will be reciprocated rapidly in one direction and slowly in the other to advance the models. The container is fitted with other compartments to store the various components of the game and has a lid 11. Obstacles 37 are formed on the track.
Patent GB-493091-A (GB)
Title: Improvements in or relating to hydraulically operated vehicle brake mechanisms
IPC: F16D65/54
Filed: 1937-07-01
Abstract: 493,091. Automatic adjustment of brake shoes. HOF, H. VAN DER. July 1, 1937, No. 18370. [Class 103 (i)] The shoes of internal expanding brakes are each provided with an automatic adjusting means comprising two parts 12, 13 pivotally connected to the back plate and shoe respectively and connected to each other by a one-way locking-element comprising a steel disc 18 mounted on the part 13 and engaging the inner wall of the cylindrical part 12 at an acute angle of contact. The disc may have saw-cuts dividing it into segments. The part 13 is made of two parts screwed together. A predetermined amount of clearance a allows the brake shoes to be applied and released. U.S.A. Specification 2,074,710 is referred to.