baber/WOPTO huggingface dataset:
Patent GB-821247-A (GB)
Title: Improvements in or relating to radiographic apparatus
Inventor: STEADMAN ERNEST JAMES
IPC: H05G1/32
Filed: 1956-05-24
Abstract: 821,247. Automatic control systems for X-ray apparatus. WATSON & SONS (ELECTROMEDICAL) Ltd. May 24, 1957 [May 24, 1956], No. 16142/56. Class 38 (4). In order that a radiographic apparatus may be used successively on subjects requiring different exposure times whilst retaining a required degree of contrast on the resulting radiographs, means are provided wherein the voltage applied to the X-ray tube may be varied during the exposure in dependence upon the length of the exposure. A subject 3 to be radiograph stands against a fluorescent screen 4 between it and an X-ray tube 1, the resulting image being photographed by a camera 5. The length of the exposure is controlled by the amount of light received by a photo-cell 6, an exposure terminating switch 37 being controlled by the photo-cell 6. The circuit incorporating the switch 37 and the photo-cell 6 together with the line 38 may include a safety device to prevent too long an exposure. The X-ray tube 1 is energized from a source 7 over an autotransformer 9 and a high-tension transformer 21. Operation of a main exposure switch closes contacts 37 so that contactor 15 is energized to supply the tube 1 from a tap 12 on the autotransformer 9 via the centre tap 20 on a reactor 19. If the exposure required by the subject 1 is less than a predetermined time (governed by the constant of the circuit 32, 33) the photocell 6 will cause the switch 37 to open to terminate the exposure. If, however, the exposure required is longer than this time the voltage across the condenser 33 will reach a value sufficient to allow the contactor 34 to operate thus energizing a contactor 18 whereby a tapping 13 is connected to the reactor 19. Therefore after the predetermined time the voltage applied to the transformer 21 will be the mean of that of the taps 12, 13. If the exposure required by the subject is now less than a second predetermined time (governed by the constants of the circuit 28, 29), the photo-cell 6 will cause the switch 37 to open to terminate the exposure. If now the exposure required is still longer the voltage across the condenser 29 will reach a value sufficient for the contactor 30 to operate to de-energize the contactor 15 whereby the reactor 19 is disconnected from the tap 12. Thus, at the expiry of the second predetermined time the voltage applied to the transformer 21 will be increased to that of the tap 13. Thus the voltage applied to the tube 1 may be increased in steps during the exposure, the increases be dependent upon the length of the exposure. The system may be modified to include a larger number of steps and the increases may be made by means of a saturable reactor system or by means of a motor driven on load tap changing system. The photo-cell may be replaced by an arrangement in which the exposure is adjusted by the use of measuring calipers or by a physical estimation of the subject.
Patent GB-1211612-A (GB)
Title: Venting of tyre moulds
IPC: B29D30/06
Filed: 1968-04-04
Abstract: 1,211,612. Tyre moulds. UNIROYAL Inc. 4 April, 1968 [13 April, 1967], No. 16153/68. Heading B5A. In a tyre mould the venting passages are formed by two, three or four through conduits 16a, 16b and by radially extending grooves, 9 in the interfaces 7a, 7b, 7c between the mould parts 2a, 2b, 6a, 6b. Circumferential grooves 9a extend from the grooves 9 at the interfaces 7b, 7c between the mould parts 2a, 2b and the toe ring members 6a, 6b. Axial bores 11a on the inwardly extending tread pattern ribs 11, axial slots 12, 12a in the shoulder forming projections 12 and sidewall flutes 15 facilitate passage of trapped air to the venting passages. If desired, vent passages 12a, Fig. 15, may be located throughout the tread pattern.
Patent GB-413480-A (GB)
Title: Pans, trays or bins for nuts, bolts and other goods
IPC: B65D21/02
Filed: 1933-06-06
Abstract: 413,480. Boxes or bins. OWEN, A. G. B., Victoria Iron Works, Darlaston, South Staffordshire. June 6, 1933, No. 16182. [Class 18.] A box, tray, or bin for bolts, nuts, and other goods has a wall 12 which is outwardly inclined to provide access to the interior and extends to the level of the upper edges of the adjacent walls 14, 15 which, or the bottom 16 or both, are adapted so that the bin may be directly supported upon a similar bin against lateral movement. As shown the upper edge of the wall 12 terminates in an outstanding ledge 19, 20 of angle section to facilitate handling of the bin and a similar ledge may be provided on the wall 13. The walls 12, 13, 16 may be formed from a sheet metal pressing welded or otherwise secured to the trapezium-shaped walls 14, 15 which may have flanges for attachment purposes. Various arrangements are described for locating the superposed bins against lateral movement, that shown comprising a lug 22 near the upper end of a side wall 15 and spaced lugs 23 on the lower edge there g, the lug 22 on one bin engaging between the lugs 23 of a superposed bin.
Patent GB-989196-A (GB)
Title: Improvements in and relating to fluid pressure operated brakes for vehicles
Inventor: PACKER MERVYN BRIAN
IPC: B60T8/66
Filed: 1962-04-27
Abstract: 989,196. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. April 23, 1963 [April 27, 1962], No. 16202/62. Heading F2F. In a fluid-pressure braking system for a multiwheeled vehicle electrical means responsive to the individual wheel speeds produce individual output signals which are compared with each other in a circuit arranged such that if one wheel is rotating at a slower speed than the remainder or/and all the wheels are decelerating at an excessive rate operation of one or more solenoid valves is effected to reduce the braking pressure on those wheels tending to skid. As shown, A.C. generators 3 are driven individually by the rear wheels 1 and front wheels 2 of a four-wheeled vehicle, the outputs being rectified by rectifiers 4 and passed to a circuit wherein one of the output lines from each rectifier is made common at 11 and the other lines are connected via individual resistors 5 to another common line 12. A condenser 6 is placed across the lines 11, 12, and rectifiers 17 are placed across the resistors, so that a voltage is developed across the resistors only during deceleration, the arrangement being such that under incipient skid conditions the voltages, when amplified by respective amplifiers 9, are sufficient to cause operation of an appropriate one or both of two solenoid valves 7, 8 for respectively controlling hydraulic pressure to the rear and front wheel brake cylinders. By the common connections 11, 12 the voltages of the lines 11, 12 are said to remain substantially constant when only one wheel tends to skid, so that only the appropriate rear or front brake pressure is released, but the circuit still operates when all the wheels skid simultaneously to reduce pressure to all four wheel cylinders. There may be only two amplifiers 9, the outputs from the associated resistors 5 being combined in each case. Also the A.C. generators and rectifiers may be replaced by D.C. generators or by polarized circuits including speed-responsive variable resistors, inductors, or capacitances. Specifications 935,830 and 944,007 are referred to.
Patent GB-183664-A (GB)
Title: Improvements in apparatus for polishing grain
IPC: B02B3/04
Filed: 1921-06-13
Abstract: 183,664. Imray, O. Y., (Smith, J. A.). June 13, 1921. Polishing.-A grain-polishing machine comprises a drum 7 which carries polishing pads cushioned by means of an air current, and rotates within a perforated casing 11 arranged in a housing 1, the air passing across the layer of grain between the drum and the casing. The drum 7 is built up of end plates 8, 9 mounted on a shaft and carrying longitudinal staves, formed with slots 21. Strips of polishing-material 7<a> fixed at one edge to the drum, overlie the slots 21 through which air passes under the action of blades 7<b> and a fan 31 connected to the housing 1. Air inlets 14, 19 are provided at top and bottom, baffles 15, 16 and tubes 20 being arranged to direct the air to the interior of the drum 7, and a supplementary force fan 40 may also be employed. The air carries away chaff, dust, and flour, fine rice &c. being deposited within the housing 1, and passing to a conveyer 34<1>. The finished grain is guided by plates 34, 35 to outlets 32.
Patent GB-442364-A (GB)
Title: Improvements relating to hinged connections
IPC: H02G3/14
Filed: 1935-05-30
Abstract: 442,364. Pivots. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., Hamilton House, Victoria Embankment, and SLATER, W. F., 14a, Blessington Road, Lewisham, both in London. May 30, 1935, No. 16310/34. [Class 65 (ii)] A pivot for the lid of a box comprises an openended keyhole-shaped recess, formed partly in each of two members fixed together, and a projection, on a third member, slidable into the recess through its open end, the width of the projection being substantially equal to that of the open end of the recess and its length substantially equal to the width of the enlarged part of the recess. In the form shown, the cover 5 of a fuse-box has a pair of lugs with projections 14 for engagement with recesses 23 which are formed partly in the main portion 7 of the box and partly in an extension 17 of the fixed cover 15 of a cable sealing chamber. The recesses have open ends 22 through which the projections 14 can be inserted or removed when the cover 5 is partly open, and notches 24 into which the projections 14 drop when the cover is closed, to hold it closely against the box 7. A lip 35 on the cover fits closely under a lip 20 on the part 17 in the closed position and engages the lower portion of part 17 to limit opening. In a modification, in which the notches 24 are not provided, the projections 14 are placed at right angles to the position shown, so as to lie across the recesses 23 in the closed position.
Patent GB-1498282-A (GB)
Title: Allantoin complexes
IPC: A61K8/67
Filed: 1975-04-21
Abstract: 1498282 Ascorbic acid derivatives SCHUYLKILL CHEMICAL CO 21 April 1975 [22 April 1974] 16330/75 Heading C2V The invention comprises complexes of ascorbic acid with allantoin or an aluminium salt of allantoin. The complexes may be made by mixing ascorbic acid with allantoin or an aluminium salt of allantoin and then adding hot water with trituration, followed by drying. In examples complexes are prepared from ascorbic acid with allantoin, aluminium chlorhydroxy allantoinate and aluminium hydroxy allantoinate; complexes are incorporated into lotions and creams for application to the skin.
Patent GB-728966-A (GB)
Title: A method for making bursting discs and/or vacuum supports
Inventor: PHILIP THOMAS BRUCE
IPC: B21D26/02
Filed: 1952-07-01
Abstract: 728,966. Making frangible diaphragms. DISTILLERS CO., Ltd. June 10, 1953 [July 1, 1952], No, 16505/52. Classes 83 (2) and 83 (4). Stamping.-A process for the'manufacture of a dome-shaped frangible diaphragm for use in a safety device for pressure vessels comprises forming a sheet metal blank by fluid pressure in a mould to the shape which it would, take up when subjected to a positive pressure differential intermediate the normal pressure differential at which it is to be used and the pressure differential at which the diaphragm will rupture. The mould is made by reinforcing a formed diaphragm by casting metal or phenol-formaldehyde resin on its convex surface and then perforating the mould to allow the escape of air during a diaphragm forming operation. Alternatively, the original diaphragm is used as a pattern and does not form part of the mould. Vacuum supports for protecting the diaphragms from distortion and collapse under negative pressure differentials are formed from the same mould by leaving a formed diaphragm in the mould and then forming the vacuum support on top of it so that the convex surface of the support exactly fits the concave surface of the diaphragm. Alternatively, both diaphragm and support may be made simultaneously. The vacuum supports are pierced to allow the internal pressure in the pressure vessel to act on the frangible diaphragm. The supports and diaphragms may be made from nickel, silver, copper, stainless steel and other metal alloys. In a specific example a disc of.sheet silver is formed into a diaphragm using 170 lb. per square inch hydraulic pressure and a mould made by casting Woods' metal around its convex surface. The mould is pierced and a further disc of silver and a disc of nickel approximately three times as thick as the silver disc are placed on the mould, clamped in position and subjected to 1200 lb. per square inch hydraulic pressure. The formed discs are removed and the nickel disc perforated to form the vacuum support. Specification 711,516, [Group XXIX]; is referred to.
Patent GB-1259683-A (GB)
Title: Copolymerisable phthalocyanine dyestuffs
Inventor: LAMURE BERNARD
IPC: C09B47/08
Filed: 1969-03-28
Abstract: 1,259,683. Coloured polyesters and polyamides. SOC. RHODIACETA. 28 March, 1969 [29 March, 1968], No. 16527/69. Heading C3R. [Also in Division C4] Polyamides and polyesters are coloured by incorporating into the polymer chain units of the general formula wherein Pc is an optionally metallized phthalocyanine nucleus, D is -O-, -S-, alkylene or -N = W-, Ar is an aromatic radical of valency n + 1, R is H or an optionally subs. hydrocarbon radical, and m, 'n and p are integers from 1 to 4. Example 2 describes the copolymerization reaction of a mixture containing dimethyl terephthalate, ethylene glycol, manganese acetate, antimony oxide and the dyestuff nickel bis-(dibutoxycarbonylphenylazo)pbthalocyanine.
Patent GB-291968-A (GB)
Title: Improvements in or relating to clamps for electric conductors
IPC: H02G7/05
Filed: 1927-06-23
Abstract: 291,968. Hofmann, J. W. June 23, 1927. Clips and holders for cables.-A clamp for attaching overhead conductors to suspension insulators is so constructed that it opens fully and releases the conductor when it is subjected to an abnormal lateral pull which may be caused, for example, by breakage of the conductor. In the construction shown in Fig. 1, the body of the clamp is formed of a U-shaped member a, and a member b, pivoted on a bolt n between the side pieces of the body a, serves to attach the clamp to the insulator. An extension of the member b has an arcuate surface h which engages a concentric surface g on a clamping piece c. In the normal position, the conductor d is gripped between the body portion a and the member c, the pressure being maintained by the engagement of the surfaces g, h. If the conductor breaks, the unbalanced pull on one side of the clamp causes the body a to turn about the pivot bolt n, and the surface g, h become disengaged and release the member c, thus allowing the conductor to run freely through the clamp. In the construction shown in Fig. 8, the body a' is a hooked member which is pivoted between the depending arms of the supporting-member b'. The cable d is gripped between the body a<1> and a member c'. This member has one end held beneath a set screw e while the other end is passed through a slot in the body and is engaged by an arm b<2> extending from the support b<1>. In use, the parts are assembled as shown and the screw e is tightened to cause the member c<1> to grip the conductor. An abnormal pull on the conductor causes the body a<1> to turn on its pivot, and the member e is disengaged from the arm b<2> so that the pressure on the conductor is released.
Patent GB-215999-A (GB)
Title: Improved removable cylinder head for internal combustion engines
IPC: F02F1/24
Filed: 1923-06-27
Abstract: 215,999. Bethenod, J., and Baur, W. June 27,1923. Valve gear.-For a cylinder cover, in which the valves are arranged in pockets at one side and worked by tappet rods below them, is substituted a cover with the axes of the valves in a plane transverse, to the vertical plane containing the axis of the crank shaft. By this means larger valves may be employed, and one of them may overlap the side of the cylinder. The valves are worked through overhead levers by extensions of the existing tappet rods which pass through holes 9 in the cover.
Patent GB-226843-A (GB)
Title: Improvements in and relating to electric signalling systems, particularly wireless telegraphy and telephony
IPC: H03F3/48
Filed: 1923-06-27
Abstract: 226,843. Taggart, J. Scott-, and Radio Communication Co., Ltd. June 27, 1923. Thermionic amplifiers and. detector.-Relates to dual amplification circuits in which a valve is utilized to amplify high and low frequency current simultaneously. In order to prevent any inherent tendency to instability one end of the secondary T<1> of the feed-back transformer is at earth potential, the other end being connected through an inductance coil L<1> to the grid of the first valve of the receiver. A pair of telephones or a loud speaker T is inserted in the anode circuit of the first valve, and is connected through a condenser C<3> to the grid of the second or detector valve. In order to eliminate difficulties caused by the loud-speaker being at a high frequency potential relatively.to earth two extra coils L<4>, L<5>, Fig. 3, are wound over the tuned anode inductance L<2> as shown. A crystal detector may be used, coupled through a transformer to the grid of a low frequency amplifying valve. A stabilizing resistance is preferably connected across the grid and filament of the first valve.
Patent GB-1497197-A (GB)
Title: Digital data transmission system
IPC: H04L27/18
Filed: 1976-04-26
Abstract: 1497197 Data transmission INTERNATIONAL BUSINESS MACHINES CORP 26 April 1976 [9 June 1975] 16814/76 Heading H4P A data transmission system includes a transmitter for transmitting data at one of a plurality of discrete speeds to a receiver capable of operating at any one of said plurality of speeds, the transmitter including means for transmitting a set of repeating signals (Figs. 4 to 7, not shown), with each data message, the number of repeating signals in a set being different at each of said speeds, and said receiver including a counter for detecting the number of recurrences of repeating signals in the set and decoding means connected to the counter for recognizing particular counts unique to one of said speeds, and speed select means connected to said decoding means for adjusting the speed at which the receiver operates on said message.
Patent GB-640373-A (GB)
Title: An improved soap composition and method of making the same
IPC: C11D9/10
Filed: 1947-06-26
Abstract: A saponaceous cleansing composition is made from a mixture of stearic acid, a sulphonated oil, sodium silicate, caustic potash and water in such proportions as will result in a fatty acid content within the range of 5.5 to 19 per cent.  The sulphonated oil specified comprises sulphonated turkey red oil with a soda or ammonia finish.  The compositions may also contain sodium sulphate or sodium carbonate, particularly when the product is made in bar form.  Pine oil may also be added to the compositions.  In use, the compositions may be employed with an alkali meta-silicate. Many examples are given with the proportions of the ingredients so as to result in fatty acid contents within the specified range. In making the compositions, the sulphonated oil, sodium silicate solution, liquid caustic potash and water are heated to about 160 DEG  F. in a jacketed boiling pan and then the melted stearic acid is added thereto and mixed by trituration until a temperature of 171 DEG  F. is reached at which point complete saponification takes place. The compositions may be used for cleaning fabrics, wool scouring, and for general domestic and industrial purposes.
Patent GB-762412-A (GB)
Title: Improvements in or relating to rigid surgical supporting means
IPC: A61F13/04
Filed: 1954-06-09
Abstract: Before or on application to the body, a fabric of threads of synthetic material is subjected to a treatment which shortens the threads and, after the desired thickness of fabric has been placed in position, the dressing is treated with a volatile solvent to form it into a rigid mass, this solvent having a saturation value at 70 DEG F. between 400 and 100,000 mg. per 100 c.c. of solution. Preferably the fabric is of cellulose acetate threads and the shrinking is carried out by the application of a weak solvent solution having a saturation value at 70 DEG F. of less than 300 mg. per 100 c.c. of solution.  This may be applied to the fabric before or after it has been applied to the body and, thereafter, the fabric is treated with the strong solvent.
Patent GB-1244234-A (GB)
Title: Improvements in or relating to devices for gripping sheet-like articles
Inventor: HANZLIK RUDOLF
IPC: B41F21/10
Filed: 1969-04-01
Abstract: 1,244,234. Printing apparatus. ADAMOVSKE STROJIRNY NARODNI PODNIK. 1 April, 1969, No. 16912/69. Heading B6C. Freshly printed sheets are delivered from an offset press on a chain conveyer belt which carries a series of gripper assemblies each comprising parallel shafts 3 and 4 carried by a chain at each end. Each gripper 1 is of spring material and carries at its free end a readily detachable rubber gripping plate 2 which co-acts in use with a rubber stop 5 fixed on the shaft 4. Spring loading of the gripper shaft 3 is effected by an adjustable spring tensioned gripper 6 at the end of the shaft adjacent a cam operating device 13, 14 which actuates the shaft 3 in response to members in the path of the conveyer belt.
Patent GB-497356-A (GB)
Title: Improvements in or relating to welded joints
IPC: B23K5/00
Filed: 1937-06-17
Abstract: 497,356. Making pressure vessels and T-joints in plates. BABCOCK & WILCOX, Ltd. June 17, '1937, No. 16930. Convention date, July 29, 1936. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In fusion welding thick members by weld metal deposited in an angle formed by the junction of the members, at or in the neighbourhood of the apex of the angle, and without creating at either of the faces a deep pocket formed by a groove or overhanging part, there lies or is provided a metal formation for relieving stresses arising during cooling after welding and the faces are then bridged by weld metal completely covering the formation. In welding a nozzle over the opening 2 in a thick walled vessel 1, the flange 3 of the nozzle is formed with an annular lip 6 spaced at 7 from the bottom edge. The weld metal 4 fused into the angle overlies the lip, the initially deposited beads fusing thereinto. The holes 5, 2 in the flange and vessel may be drilled prior to or subsequent to welding. In Fig. 2, the flange has an annular groove 8 in its lower surface to provide a relatively thin flexible lip 9 into which the weld metal is fused. In another form, Fig. 3, a filler member 10, which may be of triangular section and in the form of a ring or segments, is placed in the apex of the angle prior to welding. In a further modification, the ring is replaced by an annular tapered lip formed integral with the bottom of the flange. A T-joint between plates 12, 13, Fig. 5, welded as in Fig. 2, has the abutting edge of one plate formed with spaced grooves adjacent the joints on opposite sides thereof.
Patent GB-217772-A (GB)
Title: Improvements in and relating to alternating current electricity meters
IPC: G01R11/36
Filed: 1923-06-29
Abstract: 217,772. Ferranti, S. Z. de, and Ferranti, Ltd. June 29, 1923. Induction motor meters. -The braking effect of the series field is compensated by a shaded-pole element producing an auxiliary driving - torque varying with the load current. This may be produced by a separate shaded-pole electromagnet a with a series winding e and having one or both pole-pieces b, c bifurcated and furnished with a pair of copper rings f on one half of each polepiece. This magnet may co-operate with the main disc or other rotor d or with an additional disc &c. In a modification in which a threelimbed shunt electromagnet and a U-shaped series electromagnet disposed on opposite sides of a disc comprise the driving system, both polepieces of the series magnet are shaded. In another modification in which a three-limbed series electromagnet . and a U-shaped shunt magnet are disposed on opposite sides of the disc, either the centre limb or all three limbs of the series magnet are shaded.