baber/WOPTO huggingface dataset:
Patent GB-122528-A (GB)
Title: Improvements in or Additions to Oxy-Acetylene Burners for use in Autogenous Soldering.
IPC: F23D14/46
Filed: 1918-02-26
Abstract: 122,528. Showell & Sons, E., (Best, A. Saulze-). Feb. 26, 1918. Valves actuated indirectly.-The supply of oxygen, or oxygen and acetylene to a blowpipe burner, is automatically cut-off when the burner is placed on a rest or support or, alternatively, the supply of acetylene is reduced to such an extent as will maintain at or near the mouth of the burner or at some other part of the apparatus a small by-pass flame. Fig. 3 shows one form in which the rest is formed on the end of a lever m pivoted to parallel arms g<1>, which are formed in one with the covers g, g<2> of annular oxygen and acetylene chambers a<1>, i. The short end of the lever m is formed with cam-surfaces m<1> acting through balls or push-pieces h, l on rubber or elastic diaphragms c, k, which, when the blowpipe burner is placed on its rest, are forced against the exit ends of oxygen and acetylene supply passages and prevent the admission of the gases to the chambers a', i. In some cases, the elasticity of the diaphragms is supplemented by metallic springs d acting through sliding sleeves e.
Patent GB-212528-A (GB)
Title: Improvements in or relating to nail-making machines
IPC: B21G3/16
Filed: 1924-02-08
Abstract: 212,528. Lestrade, A. March 10, 1923. [Conveiition date]. Nails.-A machine for making wire nails has dies 4 which hold the wire while the head is being forged and which are adapted afterwards to rotate about axes in a plane at right angles to the wire which is thus advanced and rolled. The dies 4 are adjustably held by screws 7, 8, Fig. 6, and a feather 6 in holders 5 which are advanced against the action of springs 17, in order to grip the wire, by eccentric pivots 15 on shafts 16 turned by their levers 36, Figs. 2 and 4, being acted upon by wedges 37 moved by levers 39. The projecting end of the wire is then upset by a die 47 moved axially, against springs, by slides 46, 55, Fig. 1, lever 56, link 57 and lever 74 and then raised out of the way by a lever 51, link 52, Fig. 4, and lever 53. The dies meanwhile are moved about their pivots 13, 15, Figs. 2 and 6, by rods 21, Fig. 1, slide 29, links 32 and lever 31 thereby drawing the wire through a guide tube 88 and rolling the nail shank, Fig. 11, to a shape depending on the form given to the dies. The dies are then opened and returned while the wire is fed through a guide tube 33 by a gripper 89 closed by a spring 94 and advanced by a lever 85 having its pivot 87 adjusted by a wedge 86 to vary the feed, link 84, and lever 31. The gripper is opened, during the advance of the dies, by a lever 93, link 92, lever 91, cam 90, and lever 39 and moved back. The point of the nail is formed by dies 65, Fig. 11, adjustably secured by screws 69, 70, Fig. 4, in holders 64 which are pivoted at 68, Fig. 1, to a pivoted frame 61 so that they can be closed by wedge faces 62 of the lever 74 and then moved to the left by a link 78 connected to the header guide 44 which is at this time moving to bring the header into operative position. This movement of the dies 65 breaks the nail from the wire which is again held by the dies 4 and this is stated to produce a sharp point. The dies 65 then open and the nail falls down a shoot 79. The guide 44 is pivoted to a lever 47 connected by a link 43 to the lever 31 so that it moves synchronously with the dies 4. All the movements are obtained by cams on the driving shaft 3. The machine is arranged in an oil tank 1 so that it is lubricated by splashing and is closed in by a cover 2.
Patent GB-1373718-A (GB)
Title: Non-crucible zone melting
IPC: C30B13/30
Filed: 1972-01-25
Abstract: 1373718 Retroactive control of zone melting SIEMENS AG 25 Jan 1972 [22 March 1971] 3359/72 Heading G3R A method of non-crucible zone melting a vertically arranged rod of semi-conductor material in which a molten zone 3, 3' is produced in the rod by a heating device I, I surrounding the rod and is caused to move through the length of the rod by relative movement between the device and the rod, includes a television camera (not shown) which produces successive pictures which are scanned by an electron beam to produce electrical pulses Fig.4 (not shown) carrying information about the crosssectional diameter of the part of the rod recrystallized from the molten zone, and also about the angles (α and # or α and γ) formed between at least two tangents to the profile of the molten zone and the vox axis X. Angle α is that of the tangent A at the starting point U of the recrystallization boundary, angle # being that of the tangent # at the melting front V and the angle γ is that of the tangent C at the point of inflection W of the melt zone profile. The information is fed to a digital computer which is used to control the power supply to said heater source and/or the axial internal between the solid parts 1, 2 of the rod and/or an electromagnetic field supporting said molten zone.
Patent GB-1475488-A (GB)
Title: Process for the production of silicon nitride ceramics
IPC: C04B35/591
Filed: 1976-01-29
Abstract: 1475488 Silicon and aluminium nitrate; aluminium oxides AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY 29 Jan 1976 [30 Jan 1975] 03538/76 Heading ClA [Also in Division C7] Sintered Si 2 N 4  ceramics are made by sintering a powder mixture of 80-40% weight SiO 2  and 60-20% weight Al in a N 2  atmosphere, initially at 1200‹ C. and finally at 1600- 2000‹ C. The sintered product is composed predominantly of a solid solution of The powders are preferably mixed with a 10% solution of starch paste, moulded at 400- 2000 kg./cm.<SP>2</SP>, heated in a N 2  atmosphere at 10‹ C./min. up to 1200‹ C., held at 1200‹ C. for 5 hours, at 1400‹ C. for 5 hours and at 1700‹ C. for 5 hours. Alternatively the moulding after heating at 1200-1400‹ C. in a N 2  atmosphere is crushed to 20 microns or less and then hot pressed in a graphite die at 100-300 kg./cm.<SP>2</SP> at 1400‹ C. for 1 hour and then at 1600-2000‹ C.
Patent GB-243932-A (GB)
Title: Improvements relating to shipping boxes for sound reproducers having acoustic horns
IPC: B65D5/50
Filed: 1925-02-09
Abstract: 243,932. Moss, D. H. Feb. 9, 1925. Fittings, internal; boxes formed from special blanks. - A rectangular shipping box for a sound reproducer having an acoustic horn comprises a number of inserts extending substantially at right angles to each other and each contacting with the reproducer to secure it rigidly in the box. As shown, the mouth 23 of the horn 20 rests on the bottom 2 of the box and the base 17 is supported by the bottom of the U-shaped aperture 22 in the insert 14 having foldable side flanges 15, 16 while a second insert 24 extending parallel to the bottom of the box contacts with the back of the throat of the horn and has foldable side flanges 25, 26 engaging the side walls 9, 10 of the box. The box is formed of one piece of corrugated cardboard folded so that the corrugations of the bottom walls 2, top walls 3, 4, side walls 9, 10 and end walls 11, 12 extend transversely of the length of the box, while those of the end flaps 5 - - 8 extend in the direction of the length of the box.
Patent GB-566071-A (GB)
Title: Improvements in or relating to the control of alternating current supply voltages
IPC: G05F1/42
Filed: 1943-03-05
Abstract: 566,071. Automatic control systems for electricity supply. PADDLE, L. H., and BARTH, M. E. March 5, 1943, No. 3638. [Class 38 (iv)] Voltage.-The A.C. voltage applied to a load circuit is maintained constant by means of a pair of electronic valves or the equivalent reversely connected in parallel between the source and the load. These valves V1, V2 have control grids to which are applied voltages conditioned by load voltage variations, whereby their impedances are varied equally in the phase required. A transformer connected across the load terminals O supplies two like oppositely acting secondary valves XV, W through impedances Xr1 in the grid circuits of the main valves. The valves XV, W are screen grid valves and their grids are connected to taps XR3, YR3 on potentiometers shunted across condensers XC, YC which are subject to rectified voltages representative of the load voltage. Constant voltage discharge lamps XNR, YNR increase the proportion of variations applied to these valves. The supply and load circuits may be connected with the regulating circuit through adjustable step-up and step-down transformers T1, T2 so that the main valves work with small current.
Patent GB-1030983-A (GB)
Title: Pump set, in particular for refuelling aircraft or other motor vehicles
IPC: F04D13/02
Filed: 1965-01-27
Abstract: 1,030,983. Reciprocating pumps. S. G. F. FRITSCH. Jan. 27, 1965 [Jan. 27, 1964], No. 3656/65. Heading F1A. A pumping apparatus for supplying fuel to aircraft or motor vehicles comprises a hand operated double-acting plunger pump 13 and a water separating filter 23, connected to the pump outlet by a coupling 22, mounted on a sledge 1. The sledge is provided with recesses to house a suction hose 20 having a strainer and coupling 19 adapted to be connected to the inlet coupling 19 of the pump and a delivery hose adapted to be connected to the outlet 28 of the filter and be fitted with a spout 29. The filter is mounted on screw jacks 26 and an operating handle 16 is provided for the pump. The apparatus is provided with a cover 30 housing a box 31 containing a spare filter element. A tool kit may be provided.
Patent GB-469910-A (GB)
Title: Improvements in or relating to sheet delivery mechanism for printing machines
IPC: B65H29/34
Filed: 1936-02-06
Abstract: 469,910. Sheet delivery apparatus. LINOTYPE & MACHINERY, Ltd., STERN, C. L., and SPENCE, F. Feb. 6, 1936, No. 3700. [Class 100 (i)] Sheet-delivery mechanism for a printing- machine a comprises tapes or the like upon which the sheets are advanced intermittently, and means separate from the devices whereby the sheets are advanced, for locating a sheet in a predetermined position when it is advanced. As applied to apparatus of the kind in which delivery is effected by a reciprocating tape-carriage h which accommodates a number of sheets received successively and advances them in stages during the outward movements of the carriage, pivoted registering-fingers or stops o mounted on stationary brackets r are provided and are operated by a cam and links t, u so as to come into operation before the completion of each inward stroke of the carriage h. The stops o prevent the sheets passing beyond their normal positions of rest due to overrunning of the tapes. Grippers m mounted on the carriage h co-operate with the tapes c of the carriage to advance the sheets during the outward movement of the carriage. The stops o may be incorporated in apparatus as described in Specification 449,553, in which, in addition to the grippers m, sheet-registering fingers mounted on the carriage are provided.
Patent GB-794898-A (GB)
Title: Improvements relating to hermetically sealed electric components
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01G9/00
Filed: 1954-02-09
Abstract: 794,898. Semi-conductor devices. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 26, 1955 [Feb. 9, 1954], No. 3806/54. Class 37. An hermetically sealed crystal valve comprises an envelope consisting of two coaxial tubular flanged metal members 1 and 2 joined and sealed at their flanges by glass, and the terminal leads of the valve being supported by metal elements 6 and 7 which are sealed in the tubular portions of the members. As described, the component consists of a semi-conductor element 8 and a whisker 9. In order to avoid damage to the semi-conductor by heat, the metal members 1 and 2 are first sealed together by means of the glass portion 5 then element 6 with the semiconductor 8 is inserted in and sealed to member 1 by solder 11, and finally element 7 with whisker 9 is placed in position and sealed by solder 12.
Patent GB-836742-A (GB)
Title: An improved method for producing polyesters in a dry form
IPC: C08J3/12
Filed: 1958-02-05
Abstract: Dry particles of a polyester of terephthalic acid and a glycol of formula HO(CH2)nOH (where n is 2-10) are obtained by treating moisture-containing amorphous particles of the polyester with hot water or steam whereby to effect at least partial crystallization, and thereafter drying the particles at an elevated temperature; not more than a slight movement between the particles taking place either during the hot water (or steam) treatment or the drying.  The process may be effected continuously (a) by passing the particles downwardly through a vertical cylinder into to which steam is blown at the upper portion and hot air at the lower portion, (b) by loading the particles on a moving perforated conveying belt provided in a drying chamber through which, for example, hot air is blown, and spraying hot water on the particles at the beginning of the belt, (c) by feeding the particles on a screw conveyer provided in a housing, a hot gas being blown through the housing in a direction against the movement of the particles and the particles being treated with hot water or steam at the beginning of the conveyer, or (d) by first effecting crystallization on a conveying belt or screw conveyer and then effecting drying in a vertical cylinder. The process may also be effected batchwise, (e) by treating the particles in an electrically-heated vessel with water at 100 DEG  C. and then placing the particles in a vertical cylinder through which air at 170 DEG  C. is blown from bottom to top, (f) by loading the particles in a vertical cylinder through which first steam at 100 DEG  C. and then hot air at 160 DEG  C. are blown from bottom to top. Instead of using hot air for the drying, it may be effected under reduced pressure at an elevated temperature.  The dried polyester particles may be used for the manufacture of fibres, threads, films or rods.
Patent GB-1071744-A (GB)
Title: Apparatus for filling boxes,trays or like containers
IPC: A24C5/354
Filed: 1963-01-30
Abstract: 1,071,744. Packaging-machines. MOLINS ORGANISATION Ltd., and R. H. G. RAINE. Jan. 29, 1964 [Jan. 30, 1963], No. 3838/63. Heading B8C. Apparatus in which articles such as cigarette filter tips 11 are fed progressively into containers 6, 7 moving beneath the filling position and in which a member 9 for supporting the inflowing articles is reciprocable in a fixed path to enter the containers during filling, has means to incline the containers as they enter the filling position to cause the angle of the member 9 relative to the leading wall on entry to be different from that relative to that wall on withdrawal. The member 9 thus remains close to the container leading wall during its descent. Articles are fed by a conveyer 10 on to a plate 12 reciprocable horizontally to shut off feed during replacement of the filled container. The inclination of the containers may be achieved by a curved track 5, conveyer flights 2 operating through a slot to advance the containers. Alternatively, means not described may tilt the containers.
Patent GB-565538-A (GB)
Title: Fluid flow control device
IPC: F16K7/07
Filed: 1943-03-10
Abstract: 565,538. Valves. GROVE, M. H., and GROVE, J. E., [trading as FLUID CONTROL ENGINEERING CO]. March 10, 1943, No. 3914. Convention date, Sept. 29, 1942. [Class 135] A valve device actuated by fluid pressure under the control of an auxiliary valve has a main closure comprising a tube of resilient material having its ends sealed to the casing about the passages and adapted to co-operate with a cylindrical barrier disposed within the tube between its ends and having a diameter greater than the diameter of the passages. As shown in the Fig., the resilient tube 13 at one end has an inturned flange 16, clamped between a shoulder 31 on the casing and a ring 29 connected with a barrier 17 by a series of bars adapted to prevent inward collapse of the tube. At the other end, the tube has an out turned flange 14 clamped against a shoulder 38 on the casing by a rib 39 on a detachable casing part 34 which part also presses on a ring 33 joined to the barrier by supporting bars 23. Around the tube the casing is formed with an annular actuating chamber 41 having a radial depth of from about 1/16 to 1/20 of the diameter of the barrier. This chamber is connected by pipes 42, 43 and control cock 52, with the main inlet 11. To limit the rate of valve operation, the entrance to the pipe 43 is restricted at 46 and the entrance to the pipe 42 is restricted at 42a, and a relief valve is fitted to the conduit 43 to discharge excess pressure to the atmosphere. In a modification (Fig. 11 not shown) the control cock is replaced by a manually operable piston valve working in a ported liner in the main casing. The casing section 34 may be replaced by an angle piece. In another form of angle valve, the barrier is held in position and the resilient tube clamped in place by a cage member integral with a removable cover plate. In still another form having inlet and outlet passages in line, the resilient tube is arranged at right angles to the line joining the inlet and outlet passages. When used as a pressure relieving valve, the control cock is replaced by a diaphragm-actuated spring-loaded lift valve.
Patent GB-607538-A (GB)
Title: Improvements relating to the bromination of phenones
IPC: C07C45/63
Filed: 1946-02-07
Abstract: Brominated phenones are prepared by treating an acetophenone or a propiophenone substituted in the phenyl ring by one or more methoxy, ethoxy or benzyloxy groups with bromine in the presence of methyl alcohol as a solvent.  In a preferred way of carrying the invention into effect the phenone is dissolved in 5-20 parts by weight of methyl alcohol and bromine either in liquid form or dissolved in methyl alcohol is added slowly with constant stirring at such a rate that the colour of the reaction mixture is not darker than a medium orange shade.  The reaction mixture is preferably cooled as the reaction proceeds, the reaction having been started by the addition of a few drops of hydrochloric or other non-oxidizing acid.  When the bromination is over the reaction mixture is diluted with water to cause crystallization of the product.  Examples are given of the preparation by the method of the invention of the following brominated phenones (1) 2 : 5-dimethoxy-a -bromo-acetophenone.  (2) 2-Methoxy-5-methyl-a -bromoacetophenone.  (3) a -Bromacetoveratrone. (4) 2-Methoxy-5-methyl-a -bromopropiophenone.  (5) 2 : 6 - Dimethoxy - a  - bromopropiophenone.  (6) 2 : 5 - Diethoxy - a  - bromacetophenone.  (7) 2 : 5 - Diethoxy - a  - bromopropiophenone. (8) 2 - Benzyloxy - 5 - methyl - a  - bromoacetophenone.  (9) 2 - Benzyloxy - 5 - methyl - a  - bromo - propio - phenone.  (10) 2 - Benzyloxy - 5 - methoxy - a  - bromoacetophenone.  (11) 2 - Benzyloxy - 5 - methoxy-a -bromopropiophenone.  (12) 2-benzyloxy - 5-ethoxy-a -bromoacetophenone.  (13) 2-Benzyloxy - 5 - ethoxy - a  - bromopropiophenone.  (14) 2 : 5 - Dibenzyloxy - a  - bromoacetophenone.
Patent GB-178240-A (GB)
Title: Improvements in overall garments
IPC: A41D13/02
Filed: 1921-02-03
Abstract: 178,240. Richards, L. C. Feb. 3, 1921. Overalls.-In an overall garment or sleeping-suit of the kind comprising body and trouser parts A, C connected by an inelastic waistband E, the waistband is doubled and the upper part C' of the trousers and the lower part A<1> of the body portions are secured between the two laps. In a modification the waistband is made of split webbing. The garment opens down the front and has tightening-straps at the hips.
Patent GB-1084944-A (GB)
Title: Illuminating composition
IPC: F42B12/38
Filed: 1965-01-29
Abstract: An illuminating composition is made by mixing together a reducing agent, an oxidizing agent, and a binder, inserting the mixture in a mould, evacuating the mould, and then subjecting the mixture to a pressure in excess of 1500 kiloponds/cm.2; the amount of binder in the finished product is less than 10% by weight. The reducing agent may be powdered magnesium or aluminium, the oxidizing agent sodium nitrate, strontium nitrate, or barium perchlorate, and the binder an epoxy resin. The compositions may be used in tracers for ammunition or in illuminating shells.
Patent GB-942176-A (GB)
Title: Improvements in fluid flow control valves
Inventor: DREW LESLIE ARTHUR
IPC: F16K21/10
Filed: 1962-02-02
Abstract: 942,176. Valves. L. A. DREW & CO. Ltd. May 22, 1962 [Feb. 2, 1962], No. 4132/62. Heading F2V. A trigger operated valve comprises a valve casing having an inlet 2, an outlet 3 and an upstanding valve seat 4 which is engageable by a closure member 6 carrying a neoprene or the like washer 5. A valve spindle 7 connected to the closure member carries a cup washer 10 which sealingly engages the casing under the action of inlet fluid pressure. A radial and axial passage 22, 21 in the spindle allows slow flow of fluid from the inlet to the space above the cup washer to retard the closing movement of the valve under spring pressure 15 when the trigger is released.
Patent GB-902814-A (GB)
Title: Improvements in fuzz meter
IPC: G01N33/36
Filed: 1961-02-03
Abstract: 902,814. Measuring electrically. INSTITUTE OF TEXTILE TECHNOLOGY. Feb. 3, 1961 [April 5, 1960], No. 4148/61. Class 40 (1). In a fuzz meter for estimating the number of fibres projecting from the surface of a strand of yarn, the yarn 10 is pulled at a constant rate past the probe element 9 of a transducer 18 so that the transducer produces output voltage pulses whenever the fuzz fibres come into brush contact with the probe element. The transducer may be of piezo-electric or electromagnetic type and may be a gramophone pick-up with the stylus replaced by a 1¢ inches long by 0.027 inch diameter stainless steel tube. The position of the yarn relative to the probe is adjusted by rotating the eccentrically mounted grooved guides 15 and 16. The output of the transducer may be recorded on a conventional graph recorder or rectified and the average " fuzz " indicated on a D.C. meter.
Patent GB-121554-A (GB)
Title: Improvements in and applicable to Straight Bar Knitting Machines.
IPC: D04B11/00
Filed: 1918-03-09
Abstract: 121,554. Fraser, W. M., Mellor & Sons, M., and Shaw, F. March 9, 1918. Straight-bar machines.-Relates to snapping- tackle for Cotton's machines and comprises means for varying the time of actuation of the snappermechanism in accordance with the width of the fabric. The snapper rod 30 is carried by levers 31 mounted on a shaft 32 adapted to be operated by a lever 33 at each end of the machine and also by a third lever 36 connected by a rod 37 to a lever carrying a truck engaging a cam on the cam shaft. Each lever 33 is actuated by a rod 34 operated by a rod 23 actuated by a lever 14 slidably mounted on a shaft 10 and positioned by a bracket 11 connected through an arm 14a and link to a slide 15 on the fashioning-screw 12, the lever 14 being rocked by a pivoted lever 16 carrying a truck 19 adapted to engage an incline 20 connected to the slur-box counting-bar 6. At the commencement of the traverse, the spring 26 of the snapper-arm 25 is held open by the rod 30 and when the carrier reaches a predetermined position the incline 20 engages the truck 19 causing the rod 30 to be lowered to close the spring. At the completion of the traverse, the rod 30 is lowered and held through the lever 36. At the commencement of the next traverse, the lever 16 turns about its pivot 17 to lower the rod 23 and cause the rod 30 td rise and open the spring 26. The rod 30 is caused to rise by a spring attached to the lower end of the rod 37 or connected to a separate lever on the shaft 32.