baber/WOPTO huggingface dataset:
Patent GB-643572-A (GB)
Title: Improvements in or relating to machinery guards
IPC: F16P3/04
Filed: 1945-10-05
Abstract: 643,572. Machinery guards. DEER, P. W., and MYALL, P. E. Oct. 5, 1945, No. 26016. [Class 80(iv)] [Also in Group XXIX] A guard for a fluid-pressure operated machine, such as a hydraulic press, in which a return stroke is effected by a drawback hydraulic ram, is interconnected with an exhaust valve in the circuit of the return ram so that the valve is opened to permit a working stroke of the machine only when the guard is closed. The control valves of the main hydraulic ram may also be actuated by the guard. As shown, the movable platen 2 is actuated by a main hydraulic ram 3 on its downward working stroke and returned by draw-back rams 6. A valve 8 controls the supply of low pressure hydraulic fluid to the draw-back rams and supply and exhaust valves are arranged in a valve block 13 to control the main ram 3. A further valve 16 controls the supply of a high pressure fluid to the main ram for the completion of the working stroke. The guard 35 is interconnected with these valves by levers 20, 24 so that when the guard is raised the stems 22 and 26 of the main ram valves are actuated to close the hydraulic supply and open to exhaust and the stem 18 of valve 8 is actuated to close the exhaust from the draw-back rams to prevent downward movement of the platen 2. When the guard is lowered to a safe position the valve 8 is opened to exhaust and the main valves are actuated to supply low pressure hydraulic fluid to the main ram to effect a working stroke of the platen 2. Towards the end of the stroke a chain 30 connected to the platen 2 operates a lever 28 to open the high pressure valve 16 to supply high pressure fluid for the completion of the working operation. Reference has been directed by the Comptroller to Specification 583,762.
Patent GB-448769-A (GB)
Title: Improvements in or relating to extrusion presses
IPC: B28B3/22
Filed: 1934-09-11
Abstract: 448,769. Extruding plastic materials. GIELOW, C., 3, Tannhauserstrasse, Oberkassel, D³sseldorf, Germany. Sept. 11, 1934, No. 26071. Void [Abridged as open to inspection under Seet. 91 of the Acts, March 12, 1935]. 87 (ii)] In an extrusion press provided with deaerating means, and comprising a mixing device a and a press cylinder b connected by an opening controlled by slides i, the device a does not extend to the rear wall of the cylinder b whereby an air space k is provided at the end of the cylinder which space is connected to suction through a pipe l. The device a is provided with kneading blades c driving through gearing e, d, f from the driven shaft g of the worm h in the cylinder b.
Patent GB-623041-A (GB)
Title: Improvements in or relating to the manufacture of metal articles
IPC: C23C10/60
Filed: 1946-08-31
Abstract: 623,041. Making hollow-ware and turbine blades. BIRMINGHAM SMALL ARMS CO., Ltd., and OLIVER, D. A. Aug. 31, 1946, No. 26254. [Class 83 (ii)] A method of making a hollow metal article comprises the interdiffusion of a metal with the surface of an iron or steel former and then dissolving the former to leave an article consisting of the layer resulting from the interdiffusion process. The invention is described as applied to the manufacture of a hollow blade for a gas turbine. A solid pattern of low carbon steel is heated to between 900‹ and 1100‹ C. in the presence of gaseous chromous chloride and hydrogen so that an interchange of chromium and iron atoms takes place with a consequent diffusion of chromitun into the surface of the steel pattern. After cooling, the surface layer of iron-chromium alloy is drilled and the pattern is immersed in nitric acid which dissolves the central steel portion leaving the iron-chromium shell. Instead of chromium, the surface of the iron may be alloyed with titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, manganese, cobalt or nickel by treating the pattern with the halides of these elements. If a blade with a solid base is required, the pattern may be removed from the acid before the whole of the steel has been dissolved. The hollow article produced may be subjected to a further interdiffusion process to enrich the inner surface with chromium or other suitable metal and may in addition be electroplated. Specifications 516,260, 572,703 and 574,737 are referred to.
Patent GB-264588-A (GB)
Title: Improvements in and relating to safety-clutches used on presses, machinery, shaftingand the like
IPC: F16D11/06
Filed: 1925-10-21
Abstract: 264,588. Humphris, F. Oct. 21, 1925. Clutches, claw; gearing for stopping and starting machinery.-In order to prevent overrunning of the driven parts or rebound of the driving- member in one-revolution and like clutches for presses, shafting, etc.; two oppositely-directed spring-actuated pawls c, c', Fig. 2, are pivoted on a driven disc or flange, a, one or both of the pawls having a stepped contacting-face c<3> to engage stepped or other faces d<1> on abutments d carried in a ring- e, integral with or secured to a driving-wheel g, the disengaging gear being adapted to allow clutch-operation in either direction. The face c<2> of the normally-driving pawl c may also be stepped. A declutching member f, Fig. 3, actuated by spring-biassed linkage preferably embodying tripping-devices to ensure its operation after a predetermined period, may be moved in a radial direction, but, as shown, carries guiding-pins f<2>, which slide parallel to the driven shaft b in the machine frame, and is provided with a facial cam-ridge f<1>, the operative surface f<6> of which successively engages lugs c<4>, c<5> on the pawls c, c<1>. In the opposite direction of rotation the surface f<6> contacts also with a roller or rollers j on the. pawl c<1>. A spring-pressed stop-pin n or. the driven member a slides on an inclined surface p on the part and finally snaps into a recess q to lock the driven parts. A second surface p (not shown) is provided for the oppositedirection of rotation. More than one pin m may be used. In a modification, the pawls c, c<1>, Fig. 8, are adapted to be declutched simultaneously by the engagement with cam-surfaces f<6>, provided on a radially-slidable declutching member f, of a. roller j<1>, connected by toggle-links k to arms c<6> on the pawls. Auxiliary cam-surfaces p and a recess q coact with a radiallypressed stop-pin n. Continuous driving may be effected by releasing a spring-pressed bolt r to engage the member f.
Patent GB-444185-A (GB)
Title: Improvements in and relating to apparatus for assisting the deaf to hear
IPC: A61F11/00
Filed: 1934-09-13
Abstract: 444,185. Heading - appliances. HOSHINO, Y., 449, Jumonjicho, Nakakyo-ku, Kyoto, and OGUSHI, 1., 1910, Kamimeguro- Sanchome Meguro-ku, Tokio, both in Japan. Sept. 13, 1934, No. 26340. Convention date, Oct. 21, 1933. [Class 81 (ii)] An appliance for assisting deaf persons to hear their own voices and other sounds comprises a casing 2 having a mouth-piece 1 and containing a diaphragm 4 carrying a rod 5. The rod is bent and held. by a pin at 6, extends through the mouthpiece 1, and terminates in a portion 7 bent to one side and bifurcated. In use the rod is placed in the mouth and the fork 7 gripped between the upper and lower rear teeth. The Specification as open to inspection under Sect. 91 states that two appliances as described may be connected together mechanically or electrically. This subject-matter does not appear in the Specification as accepted.
Patent GB-476351-A (GB)
Title: An improved screw-fastening
IPC: F16B37/08
Filed: 1936-09-30
Abstract: 476,351. Screw-fastenings. WILMOTBREEDEN, Ltd., and SPICER, H. J. Sept. 30, 1936, No. 26506. [Class 44] A screw-fastening comprises a nut formed as an internally threaded boss b on an attachment plate a, the threads being interrupted by two or more longitudinal gaps c, and a screw d, with correspondingly interrupted threads e, rotatably anchored in an attachment plate g, by a ring j sprung into a groove in the screw. The head f is housed in a recess so as to be flush with the face of plate g and has a groove i to receive the edge of a coin or suitable operating tool. The screw is inserted to the required extent with the threads e registering with the gaps c, and is then secured by a partial turn, rotation of the screw being limited by a projection k engaging an arcuate recess l in the lower face of the head f.
Patent GB-869956-A (GB)
Title: Modified polyesters
IPC: C08G63/181
Filed: 1958-08-18
Abstract: A fibre-forming polyester of melting point above 200 DEG C. and having improved dyeability, solubility and solution stability is the reaction product of (1) terephthalic acid, or a mixture thereof with isophthalic acid, or C1-C5 alkyl esters of such acids; (2) at least one dialkyl ester of a saturated aliphatic dicarboxylic acid of formula: where R1 and R2 are C1-C10 alkyl radicals, A is a linear saturated aliphatic radical containing 14-18 carbon atoms, n is 1 or 2, y is 0, 1 or 2 and wherein the total number of carbon atoms in A and its side chain(s) (if present) is 18 and (3) at least one polymethylene glycol containing 2-10 carbon atoms.  The reaction mixture may also contain a chain-terminator (e.g. a methoxypolyethylene glycol) and a chain-branching agent (e.g. pentaerythritol). Polyesterification of the reactants is brought about by first effecting ester-interchange at 65 DEG -250 DEG C. and then polycondensing the ester-interchange product at 200 DEG -325 DEG C. under reduced pressure.  The preferred catalyst for the reaction is manganous formate but others which may be used are p-toluene sulphonic acid, camphor sulphonic acid, zinc acetate, cobaltous acetate, zinc succinate and antimony oxide.  Examples describe making polyesters from (2), (3) and (5) Dimethyl terephthalate or a mixture thereof with dimethyl isophthalate, ethylene glycol and a mixture of 57% dimethyl-1 : 20-eicosanedioate and 43% dimethyl-8-ethyl-1 : 18-dioate; (4) and (7) Dimethyl terephthalate, ethylene glycol and dimethyl-1 : 20-eicosane dioate; (6) Dimethyl terephthalate, 1 : 3-propanediol and the mixed aliphatic esters of Example 2.  Some of the polyesters are soluble in chloroform, tetrachloroethane, trichloroethylene, phenol, m-cresol, 6-tertiary butyl m-cresol, a mixture of phenol and water or a mixture of phenol, 2 : 4 : 6-trichlorophenol and water.ALSO:In Example VII, the inner surface of a glass container was coated with a chloroform solution of a linear polyester prepared from dimethyl terephthalate, dimethyl 1,20-eicosane dioate and ethylene glycol.  The chloroform was then evaporated to leave the container coated with a film which was resistant to boiling water and steam.
Patent GB-260297-A (GB)
Title: Improved method of utilizing the liquors derived from chloridizing roasting pyrites cinder and the like
IPC: C22B3/44
Filed: 1926-10-23
Abstract: 260,297. Reymersholms Gamla Industri Aktiebolag. Oct. 24, 1925, [Convention date]. Precipitating.-Copper, silver, and cobalt are obtained in metallic state from chloride solutions by precipitation with zinc at 90-100‹ C. Specification 260,294 is referred to.
Patent GB-741369-A (GB)
Title: Improvements in and relating to thermionic cathodes
Inventor: WATTS BERNARD NELSON
IPC: H01J9/04
Filed: 1952-10-22
Abstract: 741,369. Cathode materials and processing. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 14, 1953 [Oct. 22, 1952], No. 26525/52. Class 39 (1). Between the base metal (e.g. tungsten) and the emissive layer an intermediate layer is provided consisting of a silicide of the base metal, to prevent the formation of undesirable reaction products and interface compounds between the base and emissive materials. In an example a tungsten coil is heated with powdered silicon in a stream of equal parts of hydrogen and hydrochloric acid gas at 700‹- 950‹-1400‹ C., to form the tungsten silicide or disilicide. Additionally metal grains which have been similarly coated with silicide are mixed with the emissive material. The cathodes are particularly useful in fluorescent mercury discharge lamps, where they reduce blackening.
Patent GB-362003-A (GB)
Title: Improvements in pocket manicure sets
IPC: B26B11/00
Filed: 1930-09-05
Abstract: 362,003. Manicuring-appliances. ADAM, A. E., 59, Rue des Blanches, Houilles, Seine-et-Oise, and JANNING, R., 2, Rue Jean V., Nantes, Loire, both in France. Sept. 5, 1930, No. 26534. [Class 131.] A manicuring-appliance comprises two cheeks 1, 1<1> between which various manicuring-implements are pivoted, springs 2b secured between the cheeks for retaining the implements in the open or closed positions, plates 12 of metal, ivory, wood, bone or other suitable material, which may be decorated, carried by the cheeks, a chamois leather 13 secured by a wire 14 to one of the plates to form a polisher, and a receptacle 8 closed by a lid 10 formed in the end of the springs for holding a block 9 of polishing- material. In the form shown in Figs. 1 and 2, the implements comprise scissors 4, a nail file 5, a nail cleaner 6, and a cuticle pusher 7. In a modification, the implements comprise only scissors and a combined nail file and cleaner, and the receptacle for the polishing-material is formed in the plate 12 which is not provided with the chamois leather.
Patent GB-665060-A (GB)
Title: Improvements in chucks
IPC: B23B31/20
Filed: 1949-10-17
Abstract: 665,060. Chucks. GISHOLT MACHINE CO. Oct. 17, 1949 [Oct. 25, 1948], No. 26580/49. Class 83 (iii). A chuck comprises collet jaws 14 which are moved with respect to a tapered hood 9, secured to the end of a hollow lathe spindle 5, by means of an axially-movable ring 17, which is biased forwardly to the jaw-closing position by means of Belleville springs 20, and is moved rearwardly against the springs to release the jaws. The ring 17 is connected to a sleeve 11, screwed to the collet, by means of levers 18 pivotally mounted in the hood and is moved axially by means of a yoke 24 straddling the hood between the ring 17 and a fixed ring 23, the yoke being pivoted about spring-influenced pins 27 and each arm thereof carrying freely-rotatable rollers 33, 34, whereby tilting of the yoke effects engagement of the rollers 34 with the fixed ring 23 and movement of the rollers 33 against the ring 17 to move the latter rearwardly against the springs 20. The yoke has an arm 36 connected to a rod 37 which may be actuated by a piston 39 in a cylinder 38, the supply of air or liquid to which is controlled by a manually-operated valve, by an electric solenoid, or by a poweractuated screw. An adjustable pin 19 limits the closing movement of the collet. The outer edges of the springs 20 are retained by an axially-adjustable member 21. In a modification, Fig. 8 (not shown), the levers 18 are dispensed with, the collet being fixed axially and the jaws thereof being moved radially by means of a tapered sleeve secured to the axiallymovable ring. In a further modification, Fig. 9 (not shown), the collet jaws are replaced by chuck jaws which are operatively connected to the shorter arms of bell-crank levers, the longer arms of which are operatively connected to the axially-movable ring. In a still further modification, a chuck is employed at each end of the lathe spindle.
Patent GB-1113980-A (GB)
Title: Improvements in or relating to dispersive networks
Inventor: BRANDON PERCY SAMUEL
IPC: H03K5/06
Filed: 1966-06-15
Abstract: 1,113,980. Dispersive networks. MARCONI CO. Ltd. 2 May, 1967 [15 June, 1966], No. 26593/66. Heading H3U. A known dispersive network comprising a plurality of all-pass sections, e.g. forty-one, each, for example, as shown in block 3, has the sections represented by blocks 1, 2 at the lowfrequency end replaced by high-pass filters. Fig. 2 shows a delay/frequency curve for the all-pass section of block 3, the characteristics of the high-pass filter blocks 1, 2 being chosen to eliminate the undesirable effect of the part X, Y of the curve. As shown in Fig. 5 each high-pass filter has an insertion loss/frequency curve L with a cut-off flank extending between the frequencies X, Y and has a delay/frequency curve D with a cut-off characteristic approximately equal to the delay characteristic of the all-pass section.
Patent GB-664668-A (GB)
Title: Improvements in or relating to apparatus for scoring end closures for cans
IPC: B21D51/38
Filed: 1949-10-17
Abstract: 664,668. Making rip seams. EASYCANTOP, Ltd., and WALENSKY, B. Oct. 13, 1950 [Oct. 17, 1949], No. 26606/49. Class 83 (iv). In apparatus for forming a score or weakening groove in lids or blanks to form end closures for cans, the blank is pressed on to a scoring knife by means of a rotary pressure tool having a shank rotatably mounted in a bearing-sleeve adapted to fit in the ram or slide of a conventional type of press and having means by which it can be rotated. The can lid or blank is scored by pressure between an annular knife 40 and one or more rollers 3 mounted in a rotary head 1. One or more sets of inner rollers 3 and outer rollers 4 are secured by pins 5 to a disc 2 carried by a body 6 having a shank 10 mounted by bearings 14, 17 within a sleeve 11 secured within a bore in the ram 9 of a conventional press. The body 6 is rotated from a motor 27 through gears 30, 31, 32, 22, counter-shaft 20 and gears 19 and 18, the latter being fixed to the shank 10. Countershaft 20 is mounted in a bush 24 carried by a plate 13 integral with the sleeve 11. The knife 40 is mounted on a carrier 41 in a recess in a member 42 on the outside of which is screwed an adjustable stop sleeve 53. An ejector sleeve 46 surrounds the knife 40 and has a cross-bar 47 adapted to be engaged by an operating rod 50 upstanding from a disc 49 which can be raised by a lever 48 actuated manually or automatically from an arm 52. In operation, the lid to be scored is placed on the knife, the motor 27 operated to rotate the roller head 1 and the press ram is lowered so that the rollers 3 press the work on to the knife until the rollers 4 engage the top of the stop-ring 53, which thus determines the depth of the score. In the case of a crankoperated press it is necessary to provide for the downward movement of the knife 40 and ring 53 during the latter part of the downward movement of the ram and to this end, the member 42 is supported on a base-plate 43 which can be moved downwardly against the action of a spring 57, preloaded by an adjustable disc 64. The amount of the preloading can be indicated by a pointer projecting from the disc and co-operating with a scale 70 on a rod 69 depending from the base-plate 43. The rollers 3 and 4 could be replaced by balls. Specification 556,334 is referred to.
Patent GB-662725-A (GB)
Title: Means for guiding tools such as drills
IPC: B23B45/14
Filed: 1949-10-17
Abstract: 662,725. Drilling-machine details. AVITECVICA, Inc. Oct. 17, 1949, No. 26619/49. Class 83 (iii). A device for guiding a tool such as a drill comprises a pair of standards 6, a pair of workengaging contacts 2 carried by each standard so that each pair is at opposite corners of a rectangle and means for limiting the movement of the contact points to parallel paths. Each pair of contact points 2 is carried by a bar 3 at the lower end of each standard 6, the bars being at different levels, or at the same level with one passing through a slot in the other. The standards slide in sleeves 10 against the action of springs 44 and a pin 7 fixed to one, bar and passing through a hole in the other bar further ensures that the contact points move in ' parallel paths. The drill 15 is held in a split bracket 12 which is slidable on the sleeves 10 so that the bracket can be lowered until the tool touches the work, when it is locked in position by spring-loaded latches 30 mounted on a top bar 19 and engaging notches on rods 22 fixed to the bracket. Thereafter the drill is fed into the work by pushing it down so that the sleeves 10 slide down the standards 6. The disposition of the contact points allows the device to be used on flat or curved surfaces to ensure that the drill is perpendicular to the flat surface or perpendicular to a tangent to the curved surface.
Patent GB-1439155-A (GB)
Title: Method of rapid differential flucculation of kaolin slurries
IPC: C04B14/10
Filed: 1973-06-04
Abstract: 1439155 Purifying kaolin clay J M HUBER CORP 4 June 1973 [8 June 1972] 26628/73 Heading C1A A kaolin clay is purified to remove titanium and iron disclorants by adding to the aqueous clay suspension a suitable amount of a dispersant from tetrasodium pyrophosphate or sodium tripolyphosphate both with or without sodium hydroxide, the pH of the suspension then being 7À5-12, followed by the addition of 0À5 to 1À5 lbs/ton of dry clay of a water soluble strongly anionic polyacrylamide polymer having a molecular weight in excess of 1 million whereby purified kaolin clay floes form, which sediment out at a rate of 2-10 minutes per inch of depth of suspension, the kaolin floes then being recovered and washed. The floes, after washing may be delaminated by grinding and shearing with glass beads of 20-30 mesh.
Patent GB-942167-A (GB)
Title: Improvements in method and apparatus for spraying fruit trees and the like
IPC: A01M7/00
Filed: 1961-07-22
Abstract: 942,167. Forcing liquids by gaseous pressure; compressors. G. LINDSAY. July 12, 1962 [July 22, 1961], No. 26647/61. Headings FIN and F1R. Tanks A, A<SP>1</SP> are alternately connected to a water main so that air is compressed in one tank by the water and serves to discharge the contents of the other. Initial pressure is built up by alternately connecting the tank A to the main and exhaust whereby air is forced into the tank A<SP>1</SP> until the air pressure is equal to the water main pressure. Spray solution is then added from a tank C to the quantity of liquid in one tank A, A<SP>1</SP> and the solution is discharged to a nozzle by the air pressure from the other tank. An air pump may be connected to one of the tanks to assist in maintaining the pressure. Pressure and water gauges are provided.
Patent GB-1492109-A (GB)
Title: Aircraft flight monitoring apparatus
IPC: G05D1/06
Filed: 1975-06-24
Abstract: 1492109 Determining uplift of aircraft BODENSEEWERK GERATETECHNIK GmbH 24 June 1975 [27 June 1974] 26781/75 Heading G1N The lift coefficient of an aircraft is derived from measurements of the pressure head, the surface pressure of a lifting surface and the angle of the control flaps, which measurement signals are combined in a computer network in accordance with empirically derived formulae. Further equations and corresponding computer sections produce signals representing the angle of incidence of the aircraft and its weight. The equations used are modified when the aircraft is not in straight-line flight to take into account the bank angle and vertical acceleration.
Patent GB-1014195-A (GB)
Title: Improvements in or relating to cameras
IPC: G03B3/02
Filed: 1961-07-25
Abstract: 1,014,195. Rising front cameras. J. T. MARRIOT. July 24, 1962 [July 25, 1961], No. 26890/61. Heading G2A. A camera comprises two main casing parts, a front part incorporating a lens, and a rear part holding the film, the two being directly attached together in a slidable manner, so that the two parts can move relative to each other in a direction at right-angles to the optical axis. In the form shown, the front part 1 on which the lens 3 is mounted has guide ways 5, and the rear part 2 housing the plate or film has runners 6 which engage the guide ways, so that the two parts can be coupled together but are relatively adjustable in a vertical direction. The front part is of greater vertical depth than the rear part, so that the latter remains within the depth of the former during its slidable adjustment. Upper and lower stop plates 20, 21 on part 1 limit this movement. Suitable modifications may be provided for allowing similar adjustment in a horizontal direction also. The rear part 2 has a mask plate 12 having an image-receiving opening 4. A viewfinder comprises a rear sighting element 18 mounted on part 2 and a front sighting element mounted on part 1 (Fig. 3, not shown).