baber/WOPTO huggingface dataset:
Patent GB-1382203-A (GB)
Title: Package for microwave semiconductor device
IPC: H01L23/04
Filed: 1973-05-16
Abstract: 1382203 Semi-conductor devices TRW Inc 16 May 1973 [31 May 1972] 23318/73 Heading H1K A package for a semi-conductor device comprises a header 11 and thermally conductive members 14, 15 each with an aperture 27, 28 respectively therethrough, a semi-conductor device being mounted on a thermally conductive insert (40, Fig. 6, not shown) in the cavity formed by the apertures, and supported on the header, regions of the device being connected to conductive films 23, 24 a member 14 and hence to strip lines 29, 30 via conductive films 32, 33 on member 15. The insert may include a conductive film (42) on which the device rests, and a further film (43) is formed over the edge and lower surface to make contact with the header. Spacer members 13, 16 and a cap 17 complete the package. The device may be connected to the conductive films by flying leads from regions which may be interdigitated in the case of a transistor. Members 14, 15 may be of alumina, insert (40) of beryllia, the conductive films 23, 24 being of gold. Connections to the strip lines 29, 30 may be facilitated by depressions 21, 22 in the side surfaces of member 14. Transistors or diodes suitable for microwave operation may be accommodated.
Patent GB-863557-A (GB)
Title: Improvements in or relating to underwater cameras
IPC: G03B17/08
Filed: 1958-07-21
Abstract: 863,557. Underwater cameras. DE WOUTERS D'OPLINTER, J.G.M.J. July 21, 1958, No. 23353/58. Classes 97(1) and 98(1) In an underwater camera, the objective assembly incorporates an objective mount arranged for axial adjustment in a lens tube and urged by resilient means towards a reference surface which is a fixed distance from a photosensitive surface, said distance being unaltered by deformation of the camera casing. The objective assembly shown is contained in a lens tube 2 which is screwed on to the external casing 1 of the camera body and the join is made fluid tight by means of rings 8 in the casing 1 and lens tube 2 which bear against a sleeve 9. The objective mount 16 is urged by a spring 33, positioned between a ring 21 and a collar 34 on said mount, against a reference surface comprising a ring 31. This ring is fixed to the tube 2 and not the casing 1 and forms the front face of a dark chamber which incorporates the photo-sensitive layer. The sleeve 9 is movable axially and rotatably relative to the tube 2. In the position shown a rod 10 on the sleeve 9 rests in a socket in a sleeve 14. An arm 18 on an extension of the tube 2 engages a groove 20 in a bush 14 and prevents it from rotating so that rotation of the sleeve 9 causes this bush 14 and the mount 16 to move axially by means of screw threads 17 thereby adjusting the focus of the objective. In the forward position of the sleeve 9 the arm 10 engages a notch in ring 21 a pin 26 of which moves in a circumferential slot 27 in a sleeve 22 and engages the objective mount 16. The sleeve 22 is coupled to a diaphragm ring 28 and the mount 16 by means of pin 29. Rotation of sleeve 9 therefore causes the mount 16 and diaphragm control ring 28 to rotate to alter the diaphragm aperture. Scales indicating the focus and aperture of the objective may be engraved on the lens tube 2 so that only the appropriate scale is uncovered for each of the controlling positions of sleeve 9.
Patent GB-1344107-A (GB)
Title: Digital equalizers
IPC: H04L25/03
Filed: 1971-04-19
Abstract: 1344107 Adaptive digital equalizer WESTERN ELECTRIC CO Inc 19 April 1971 [13 March 1970] 23366/71 Heading H4R  In a digital adaptive equalizer an input signal at 10 is sampled and converted to a digital form in A/D converter 11 and fed into a first register 13 as a simple binary number in which the first digit equals the sign of the signal amplitude and the remainder of the digits the magnitude. The digital signals are multiplied in a tap multiplier by a tap multiplier coefficient, in binary form, stored in register 19, to form a product signal which appears in register 27. The sign digits of the signal amplitude and the tap function coefficients are sampled, by circuits 16, and 34, and combined by an "exclusive-or" gate 36 to provide a control signal for a further "exclusive-or" gate 29 which converts the product signal to the ones complement form and feeds them to an adder 32. The digital signal in register 13 is fed, in shift register fashion, through a number of similar tap circuits 14B to 14Z, each of which, multiplies the signal sample by the respective tap coefficient to produce further product signals to feed the adder 32, the arrangement being such that the signal derived from the adder 32 and fed into register 39 is in a "ones complement" form where the first "N" digits, in this case 2, represent the input signal data in N bit binary form, the (N+1)st bit represent the sign of the error in the equalized signal level, relative the nominal signal level, and the remaining bits are representative of the magnitude of that error signal. As shown only the first four bits of the error signal magnitude are used in computing an adjustment to the stored tap multiplying coefficient and these are read out at the appropriate time through gates 42 to 46 and passed through "exclusive-or'' gates 47 to 51, fed also with the error polarity signal sampled by circuit 41, so that the actual error magnitude is entered into the first four stages of shift register 52. The error signal is correlated with the input signal in correlator 58, the relative input signal being derived, over leads 61B and 69B from the following tap circuit 14B due to the delay in establishing the value of the error signal. The correlation, which is carried out by multiplication of the error and tap signals and accumulation in register 64, produces a tap coefficient adjustment signal which is added to or subtracted from, the tap coefficient circulating in register 19, according to the values of the sign bits of the two signals as determined by "exclusive-or" gate 68.
Patent GB-204850-A (GB)
Title: Improvements in or relating to the points or switches of transporter rails
IPC: A22B7/00
Filed: 1922-08-29
Abstract: 204,850. Hall, T. Aug. 29, 1922. Elevated railways.-Runway points for over-running trollies comprise rail sections 9, 10 united by bars 11 and mounted on a shaft 8 pivoted in flanges 7 carried on the side of the main rail 1. The shaft 8 carries a pinion 13 engaged by a rack 14 which is operated by a lever 15 and chains 22, the rack, in its final movement in one direction, engaging the end 10<a> of the rail 10 to lock it in position. This end 10<a> is stepped and has reversely-bevelled faces engaging the similar end 2a of the branch rail 2. The track sections are supported by brackets on threaded rods 4a and secured by upper and lower nuts.
Patent GB-864980-A (GB)
Title: Improvements in or relating to air conditioning apparatus
Inventor: HALL HUBERT DANIEL
IPC: D01H13/30
Filed: 1958-07-22
Abstract: 864,980. Air conditioning apparatus. HALL & KAY Ltd. July 14, 1959 [July 22, 1958], No. 23426/58. Class 137 [Also in Group XXVIII] An air conditioning apparatus comprises a wire mesh screen 16 on a frame 17, an extractor 18 to suck air through the screen to clean the air of foreign particles, a trough-like suction nozzle 27 for sucking the foreign particles off the screen, and means for traversing the nozzle across the screen. The apparatus is housed in a chamber composed of rooms 10, 11, 12 separated by partitions 13, 14, the partition 13 having apertures 26 regulable by baffles 19, and the partition 14 having a large aperture 15. The room 12 communicates with the atmosphere, e.g. in a cotton mill, which is to be screened, and the extractor 18 is joined to a duct 20 to return the clean air to the said atmosphere. The traversing means includes shafts 21, 22 on which are mounted pulley wheels 23, 24 respectively carrying endless wire ropes 25 driven through rotation of the shaft 22 by an electric motor 31 under the control of a pressure-sensitive switch 32. One of the ropes 25 has a trip member, Fig. 2 (not shown) which engages in turn two trip switches placed respectively at the top and bottom ends of the screen, the direction of rotation of the electric motor 31 being reversed each time one of the switches is operated by the trip member, so causing the nozzle 27 to be traversed to and fro across the screen 16. Foreign particles from the screen 16 are sucked by a fan 36 via tubes 34 and a duct 35 into bags 39. Excessive clogging of the screen 16 causes a drop in pressure in the room 11 thereby actuating the pressure-sensitive switch 32 (at a predetermined setting of the switch) whereby the nozzle 27 is caused to traverse across the screen; consequent cleaning of the screen brings a rise in pressure in the room 11 and a further actuation of the switch 32 to break the circuit. The room 11 may contain humidifying, heating or cooling apparatus.
Patent GB-1127517-A (GB)
Title: Improvements in and relating to grinding and friction roll-type rice polishing machines
IPC: B02B3/04
Filed: 1967-05-19
Abstract: 1,127,517. Rice polishing machine. T. SATAKE. 19 May, 1967 [1 June, 1966; 10 June, 1966; 6 July, 1966], No. 23465/67. Heading A2Q. A grinding and friction-type rice husking and polishing machine comprises a grinding roll and a friction roll mounted on the same shaft. In one embodiment the machine comprises an emery stone grinding roll 20 and friction roll 23 provided with angularly spaced raised portions 23<SP>1</SP>, mounted on hollow shaft 14 and surrounded by perforated cylinders 31 and 34. Between rolls 20 and 23 is a frustoconical roll comprising a flat portion 21 and a spiral portion 22, surrounded by a stationary annular member 25 mounted on a plate 2 dividing grinding and friction sections 3 and 4, and an annular member 29 screw-threaded on member 25 such that the annular space between member 29 and the frusto-conical roll may be adjusted to control the rate of feed of the grains from section 3 to section 4. A fan 16 supplies air to section 4 via hollow shaft 14. The pressure in section 4 may be regulated by device 41 controlling the outlet 11<SP>1</SP> of section 4. In another embodment the annular members 25 and 29 may be replaced by one movable annular member. In use rice from inlet 10<SP>1</SP> is fed by spiral roll 19 to grinding roll 20 which partially husks the grains and scars the husks. The partially processed grains are fed at a controlled rate to friction roll 23 which completes the husking and polishing of the grains. The polished rice is discharged through outlet 11<SP>1</SP>. The rice bran obtained by the action of rolls 20 and 23 is removed through the perforated cylinders 31 and 34 to chambers 35 and 36 and conveyed to conduit 38 by suction applied by fan 16.
Patent GB-945088-A (GB)
Title: System for simultaneously perforating and reinforcing the hole so made in laminar or sheet materials
IPC: B26F1/02
Filed: 1962-06-19
Abstract: 945,088. Punching machines. R. P. VILLALON. June 19, 1962 [June 20, 1961; May 18, 1962], No. 23488/62. Heading B4B. [Also in Division B8] Apparatus for punching a hole in sheet material such as paper, and reinforcing the material in a region around the hole comprises means S, Fig. 1, for clamping together a length of adhesive reinforcing tape C and the material T over a region within which a hole is to be punched, means including a punch P to punch a hole through the material and the tape adhered thereto and a guillotine F for cutting the tape at the edge of the region, means to withdraw the punch and guillotine and to unclamp the reinforced sheet material, and means to advance a second length of tape to a position to be clamped in a subsequent punching and reinforcing operation. During the initial downward movement of the punch P, guillotine F and clamp S, the tape C and material T are pressed together and against a die plate A by the spring-pressed clamp. A guide G is then moved away from the punch assembly to unroll a length of tape from the roll R. Further downward movement of the punch and guillotine causes the punch to cooperate with a recess O to form a hole in the tape and sheet and the guillotine to cut the tape at the edge of the sheet. The punch; guillotine and clamp are raised and the guide G, which forms the tape with a curve transversely of its length so as to be stiff and selfsupporting, is advanced to position a new piece of tape beneath the clamp in preparation for the next operation. In another embodiment, Fig. 6, the punch is mounted in guides GP and may be connected by a control bar U to one or more similar punches. The roll R of tape C is mounted on a plate B and is movable about a pivot EE<SP>1</SP> by the bar U during its downward movement to unroll tape from the roll R while its end is held by the clamp S. A forked piece may be mounted on the platform A for retaining the plate B in a retracted position when reinforcement of the sheet is not desired.
Patent GB-951776-A (GB)
Title: Improvements in or relating to a transmission for rotary cultivators or the like
IPC: A01B33/02
Filed: 1960-07-05
Abstract: 951,776. Belt gearing. H. KOCH, and T. KOCH, [trading as HAKO HANS KOCH & SOHN]. July 5, 1960 [July 6, 1959], No. 23520/60. Heading F2Q. In a rotary cultivator, a belt-drive 7, between a motor shaft 6 and a pulley 28, is tensioned in response to load reaction by the swivelling of a cover plate 4 in which a shaft 5 carrying the pulley 28 is mounted eccentrically, the shaft 5 being connected to an output shaft 14 carrying a tool 14<SP>1</SP> through toothed gearing 5<SP>1</SP>, 3 and chain gearing 3<SP>1</SP>, 18, 19. The cover plate 4 has a rope pulley portion 4<SP>1</SP> around which a wire rope 9 is fastened, the rope 9 also passing around a pulley 10 which is connected by an adjustable lever 11 to an adjusting rod 13. The rod 13 is moved towards the gearing to effect coupling. A spring 17 is arranged to disengage the drive automatically when the load reaction is small. The position of the plate 4 for correct belt tension may be determined by an adjustable abutment 21 or by an adjustable friction locking means 22 on the rod 13. Movement of the rod 13 in a direction away from the gearing causes a friction wheel 24 on the shaft 5 to move into engagement with a friction wheel 25 on the motor shaft 6 and effect a reverse drive.
Patent GB-149985-A (GB)
Title: Improvements in or relating to valves for internal combustion engines
IPC: F02M67/10
Filed: 1920-08-12
Abstract: 149,985. Niepce, H., and Ropars, L. Aug. 23, 1919, [Convention date]. Regulating.-The lift of a valve 1, serving both as a vaporizer and as an admission valve, may be varied by axial adjustment of a tapered cam 22, either automatically or by hand.
Patent GB-245820-A (GB)
Title: Improvements in the preparation of sterilising agents, germicides and the like
IPC: C02F1/76
Filed: 1924-10-07
Abstract: 245,820. Harold, C. H. H. Oct. 7, 1924. Treating-materials. - A sterilizing agent containing a mono- or di-chloramine or mixtures thereof is prepared by interaction of ammonia and chlorine in dilute aqueous solution. Normally in order to obtain quantitative yields a solution containing only 12.5 parts of ammonia in a million parts of water is used, and the equivalent quantity of chlorine is added. When the monochloramine is prepared a limited excess of ammonia may be present while a small excess of chlorine does not adversely effect the production of dichloramine. Higher concentrations of the chloramines may be produced by taking steps to prevent local rise of temperature. This may be done by using a Pasteur-Chamberlain or similar filter, the chlorine being passed into the ammonia solution or vice versa. An ammonia solution containing 750 parts in a million of water can then be used with satisfactory results. The best yields are obtained when the solution in contact with the surface of the filter at which the reaction takes place is set in movement to prevent undue accumulation of the product. The sterilizing agent so prepared is effective in the presence of foecal matter and may be used for treating water and sewage.
Patent GB-318543-A (GB)
Title: A device for recording the direction of motion of moving parts
IPC: G01P1/12
Filed: 1929-08-02
Abstract: 318,543. Hydrometer Akt.- Ges., (Assignees of Central- Wechselstuben Akt.-Ges.). Sept. 5, 1928. [Convention date]. Recording particular operations. - A device for recording the direction of rotation of a shaft comprisee a marking element co-operating with a chart and adapted to produce a longitudinal line thereon for one direction of rotation and a succession of short transverse strokes for the other direction. In the form shown, Figs. 1 and 2, the driving shaft 2 carries a sleeve 8 adapted to drive a speedometer mechanism, said sleeve being rotatable in one direction onlv irrespective of the direction of the shaft 2 through a system of bevel gears 3 - - 5 and claw couplings 6, 7 that co-operate with corresponding joins on the shaft 2. The claws are forced apart by a plate 19 and spring 20, Figs. 2, and 3, secured to an arm on a sleeve 18 rotatably mounted on a spindle 17. The sleeve is provided with a second arm 21 connected to a block 14 slidable on a shaft 13 and having attached thereto rod 15 connected at its upper end to a second block 16 provided with an arm 11 carrying a marking member 12 co-operating with a record-strip driven by clockwork from the spindle 13. In the direction of rotation indicated by the arrow V, Fig. 3, the claw 7 directly drives the sleeves 8 while the claw 6 is reciprocating idly on the shaft 2 against the action of the spring 20. In the opposite direction of rotation of the shaft 2 the sleeve 8 is rotated in the same direction as formerly through the claw 6 and gearing 3 - - 5 while the clay 7 is reciprocating on the shaft 2 and imparts its movement, through the plate 19, the sleeve 18, and rod 15, to the marking member 12. The record produced is shown by the lines 24, 25, Fig. 5, respectively.
Patent GB-480958-A (GB)
Title: Improvements in or relating to the production and application of synthetic resins made from carbohydrate ureide and formaldehyde
IPC: C08G12/12
Filed: 1936-08-31
Abstract: Water-soluble synthetic resins, capable of being insolubilized, are prepared by condensing glucose ureide, with or without the addition of phenol or urea, with formaldehyde in the presence of free alkali. Solutions of the products with or without the addition of sulphonated fat alcohols, pigments, dyestuffs or hardening catalysts may be used to treat cellulosic textiles to render them waterproof, creaseproof and to load them.  The solution, if desired, may be added to a viscose spinning solution to obtain fibres having similar properties. Suitable hardening catalysts are organic or mineral acids of ammonium salts thereof such as sulphuric, hydrochloric, acetic or oxalic acid. In examples: (1) tissue of staple fibre or short spun artificial silk is made resistant to crumpling by treatment with a solution obtained by condensing glucose ureide with aqueous formaldehyde in the presence of caustic soda; (3) a similar solution, but prepared in the presence of sodium lauryl sulphonate, is used to render artificial silk velvet resistant to bruising; (4) a similar solution is added to a viscose solution and spun by coagulation in strong sulphuric acid to yield a fibre resistant to crumpling. Specification 209,697, [Class 2 (iii)], is referred to.
Patent GB-240473-A (GB)
Title: Improvements in or relating to the production of iron or steel alloys
IPC: C21C7/00
Filed: 1925-09-24
Abstract: 240,473. Flodin, H. G., and Gustafsson, E. G. T. Sept. 24, 1924, [Convention date]. Alloys; briquetting processes.-Alloys of iron with other metals, for example chromium, are made directly from oxide ores, using reducing agents which are wholly or partly carbonaceous, by making separate charges of each of the ores together with its appropriate amount of reducing agent, and melting in an electric furnace the required amounts of the two kinds of charges. The materials are preferably finely divided and briquetted, and such briquettes may be dried or hardened before reduction. Lime may be used as a binder. If two or more metals are to be alloyed with iron, separate briquettes of the oxides may be prepared, or the oxides may be mixed before briquetting. The iron ore briquettes and the other ore briquettes may be melted together or separately, the reduced metals in the latter case being alloyed with each other in the furnace in the desired proportions. Deoxidation of the produced alloy or of either of the reduced metals may be effected by the addition of briquetttes containing manganese ore and a reducing agent. Slag may be withdrawn from time to time, and prior to tapping may be deoxidized. The proportions of carbon in the different charges may be so arranged that the product produced directly has the desired proportion of carbon; or iron may first be produced having a low percentage of carbon and the other metal made with such a percentage of carbon as to give the desired final product; or a product as low in carbon as possible may be made and afterwards carburized. The product may have added to it further amounts of the same or other alloying metals. The Specification as open to inspection under Sect. 91 (3) (a) describes also the production of alloys of other metals of the iron group. This subject-matter does not appear in the Specification as accepted.
Patent GB-1082552-A (GB)
Title: Railway rail mountings
IPC: E01B9/68
Filed: 1965-06-04
Abstract: 1,082,552. Securing rails to the track bed. FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK A.G. June 4, 1965 [June 9, 1964], No. 23885/65. Heading E1G. In a means of attaching rails to a track bed, such as a concrete block, wherein a sounddeadening layer is interposed between the rail clamping plate and the bed, the screws securing plate to the bed pass through concentric sound deadening layers. In one embodiment the rail flange clamping screws are borne in conical rigid sleeves bonded to a rubber truncated cone secured within a concrete track bed. In another embodiment similar conical sound deadening means is interposed between the head of the screw and the clamping plate which secures the rail by spring clips.
Patent GB-727431-A (GB)
Title: Improvements relating to fastenings
IPC: B65D45/24
Filed: 1952-09-24
Abstract: 727,431. Box fastenings. COOKE, R. S., COOKE & CO., Ltd., H. S., and FLEETWOOD BOX POOL, Ltd. Sept. 21, 1953 [Sept. 24, 1952], No. 23917/52. Class 44. A fastening comprises in combination a flexible bracket d, a catch member e pivoted thereto and a wire loop or member f also pivoted to the bracket and having a cranked part f<SP>1</SP> slidably co-operable with a pronged extremity e<SP>3</SP> of the catch member in such a manner as to provide for the actuation and automatic fixing of the catch member. As shown the fastening is applied to a box or case a having a lid b which is held at one end under a a fixed bail or loop (not shown) and which is located by a batten (not shown) on the underside of the lid and the other end b<SP>1</SP> of which is located by a part gl and secured by a pivoted bail c, the bail c being retained in position by the catch member e which has a downturned end e<SP>1</SP> to engage over the bail c and two downturned lugs e<SP>2</SP> which engage the top of the bail. The catch member is mounted in side lugs d<SP>3</SP> of the bracket d. The loop f is engaged underneath projections of the lugs d3 and is kept in position by a lug upset from the base of the bracket d so that it can only pivot relative to the bracket. This pivotal movement of the loop causes pivotal movement of the catch member. The loop can be sealed to the bracket by a piece of wire passed round its end f<SP>2</SP> and through an aperture d<SP>5</SP> in a projection d2 of the bracket. The end f<SP>1</SP> of the loop is set at slightly less than 90 degrees to the main part of the loop so that while the loop can move the catch member, the catch member cannot move the loop. The bracket is bolted to the lid b the bolts passing through an underplate g which carries the locating part g<SP>1</SP>. The lugs d3 have small protruberances d<SP>6</SP> which engage the loop in its raised position to hold it inoperative.