baber/WOPTO huggingface dataset:
Patent GB-435694-A (GB)
Title: Improvements in or relating to the electrolytic deposition of a metal upon a metallized non-conducting surface
IPC: C25D1/10
Filed: 1935-06-18
Abstract: 435,694. Electrodeposition of metal. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Russell, A. G. ; 47, Rector Place, Red Bank, New Jersey, U.S.A.) June 18, 1935, No. 17480. Convention date, June 20, 1934. [Class 41] In the deposition of separable deposits on a metallized non- conducting surface such as a wax master sound record, metal clips are applied to the edges of the mould to prevent curling away of the deposit. In the apparatus shown, U-shaped phosphor-bronze wire clips 16 are pushed at uniform intervals round the edge over a recessed metal disc 13 supporting the metallized wax layer 10. A rubber edge shield 11 and a back shield 12 are then applied. The ends 18 of the clips are turned up to avoid tearing the wax. After deposition, the shields are removed and the clips bent up at 20 to permit removal of the deposit 14. The deposit is then centre-drilled and the edge cut off at X. Tne invention is particularly applicable in the deposition of nickel. The wax may be metallized by sputtering.
Patent GB-1399692-A (GB)
Title: Process and apparatus for the preparation of intermediates of polyaddition resins
IPC: B29B7/82
Filed: 1973-04-11
Abstract: 1399692 Polymerizing during extrusion BUSS AG 11 April 1973 [24 Aug 1972] 17491/73 Addition to 1283409 Heading B5A [Also in Division B1] The process of the main patent is modified by expelling the mix from the mixing and kneading zone at a temperature of 50-90‹ C. through a die maintained at a temperature not greater than 50‹ C. An apparatus comprises a rotating and reciprocating mixing and kneading screw 3 and a die 6 having two conical faces intersecting in a circular outlet 8 having a sharp edge 9. A heat exchange medium is circulated through the passages 5, 10, 13. There may be a heated discharge shoot 12 providing a smooth path for the extruded strand from the die exit.
Patent GB-564384-A (GB)
Title: Improvements in and relating to self-sealing fuel tanks
IPC: B64D37/06
Filed: 1942-12-09
Abstract: 564,384. Tanks. GILES, E. V. Dec. 9, 1942, Nos. 17526/42, 17751/42 and 1648/43. Drawings to Specification. [Class 69 (i)] A tank, such as a fuel or oil tank for aircraft, has the skin thereof, or a covering therefor, formed wholly or partly of a milled fabric of, yarn spun from natural wool of good felting properties ; the yarn may be woven or knitted, and the fabric may be coated, but not impregnated, with rubber or other plastic to render it liquid-proof or to cause it to adhere to another component of the tank or covering. Where several plies of fabric are employed, they may be assembled on the bias. The fabric may be of worsted yarn, woven preferably as a twill, or otherwise with long floats, and milled until its dimensions are reduced by one third. A self-sealing layer of sponge rubber &c. may be provided over or between layers of the fabric, and an outer layer of strong cotton &c. may be provided. Specification 562,866 is referred to.
Patent GB-1285382-A (GB)
Title: Mobile drag line field irrigation device
Inventor: INGRAM CARL B
IPC: A01G25/09
Filed: 1970-04-13
Abstract: 1285382 A roll-type irrigation device C B INGRAM and L E WATSON 13 April 1970 17540/70 Heading AID [Also in Division F2] A mobile roll-type irrigation device has rotatable drag-lines 18 to increase the area which may be sprayed from one position of the pipe 12. Each drag-line 18 has two spraying heads 24 and 26, one at each end, and is able to rotate about an axis perpendicular to the axes of both the pipe 12 and the drag-line 18 by means of the swivel coupling 30 which is attached to a coupling 22. Coupling 22 is able to rotate coaxially about the pipe 12 by means of roller bearings 38 while the coupling is sealed against loss of water. For transit of the pipe 12, the drag-lines 18 are directed away from the direction marked "TRAVEL" in Fig. 1; as their outer ends drag on the ground they remain or become correctly aligned for spraying at the next station.
Patent GB-328152-A (GB)
Title: Method of producing oscillations from piezo electric plates
IPC: H03B5/34
Filed: 1929-06-07
Abstract: 328,152. Kolster-Brandes, Ltd., (Kolster Radio Corporation). June 7, 1929. Thermionic generators; piezo - electric crystal units. - Beat frequencies are produced between oscillations controlled bv piezo crystals cut in the same sense from material of the same nature, or by a single crystal cut in stepped formation. Two crystals 1, 2, Fig. 1, control valves 3, 3', having oscillatory circuits 5, 6 and 5', 6', coupled together, and from either of which the beat frequency may be tapped. Switches 12, 12' enable the crystals to be connected between grid and plate or grid and filament, the former connection giving better results at frequencies of over 300 kilocycles. In a modification (Fig. 2, not shown) the two oscillatory circuits are coupled to a third circuit tuned to the beat frequency. In another modification the two crystals 1, 2, Fig. 3, are connected in parallel. A crystal 23, Fig. 5, is shown ground in stepformation at 24, 25 so as to produce two fundamental frequencies for interaction. Several steps may be cut to produce several beat frequencies, and may be cut in any face of the crystal.
Patent GB-818615-A (GB)
Title: Method of strengthening iron ore agglomerates
Inventor: VEALE JOHN HEAGY
IPC: C22B1/24
Filed: 1957-06-03
Abstract: 818,615. Agglomerating iron ore. ILLINOIS CLAY PRODUCTS CO. June 3, 1957, No. 17565/57. Class 82(1) Mechanically strong nodules of a finely divided iron ore, such as taconite, are produced in the rotary kiln 10 lined with refractory 14 and mounted on piers 12, by forming on their surface a hard layer of an alkaline earth ferrite, such as calcium ferrite, by coating the nodules with an alkaline earth oxide or carbonate, such as calcium oxide, limestone or dolomite, and heating to a temperature above the fusion temperature of the eutectic of iron oxide and the alkaline earth oxide. The ore fines are seeded with large particles of ore and fed into the shoot 24 to pass down the rotating kiln 10 which is 350 feet long and 11¢ feet in diameter, the exit end of which is maintained at a temperature of 500‹F. by the exhaust gases. The particles agglomerate as they pass down the kiln and are heated first by the "lazy" flame 20 which is 50-70 feet long, issuing from the burner 18 and secondly by the "hard" flame from burner 22 which heats the nodules to their maximum temperature of about 2400‹F, the surface hardened nodules being withdrawn through a cooling unit 30 into hopper 32. The alkaline earth carbonate or oxide is introduced as a powder passing 200 U.S. Mesh, into the air supply of the "hard" flame burner 22 in a quantity such that the heated powder is sparsely but evenly dispersed over the surface of the nodules. Specification 818,616 is referred to.
Patent GB-1364193-A (GB)
Title: 16-alkyl-17 20 21-trihydroxy-pregna 4 9/11/-dien-3-ones and deri vatives thereof
IPC: C07J5/00
Filed: 1972-04-17
Abstract: 1364193 16 - Alkyl - 17,20,21 - trihydroxypregna - 4,9(11) - dien - 3 - ones and derivatives thereof UPJOHN CO 17 April 1972 [23 April 1971] 17607/72 Heading C2U Novel steroids of the formulae (wherein R 6  is H or C 1 -C 18  carboxylic acyl, R 5  is C 1 -C 8  alkyl; R 1  and R 2  are each H, C 1 -C 8  alkyl, C 7 -C 13  aralkyl or C 6 -C 12  aryl, or R 1  and R 2  together with the adjacent carbon atom are C 3 -C 8  cycloalkylidene; X 1  is C 1 -C 12  alkoxy; and there is an optional #<SP>1</SP>-double bond) are prepared as follows wherein R is C 1 -C 18  carboxylic acyl and X is X 1  or -NR 3 R 4  in which R 3  and R 4  are each C 1 -C 8  alkyl or together with N are a saturated heterocyclic amino radical of 5 to 9 ring atoms. The starting materials are reacted with a Grignard reagent R 5 MgX (X is Br, Cl or I) to give compounds (VIII). These, when they are 3-enolethers, are then subjected to acid hydrolysis to give compounds (X) or, when they are 3- enamines, to alkaline hydrolysis to give compounds (IX) (compounds (VIII), when they are 3-enamines, need not be isolated after the Grignard reaction but may be directly subjected to alkaline hydrolysis to give compounds (IX) which are then hydrolysed with and to give compounds (X), which on acylation give compounds (XI). These may then be converted to 9α - fluoro - 16# - alkyl - prednisolones by known methods, for example as indicated in the following reaction scheme Steriods of the Formula (VII) are described and claimed in Specification 1,364,194.
Patent GB-807605-A (GB)
Title: Process for the preparation of alpha, beta-epoxypropion-aldehydes
IPC: C07D303/32
Filed: 1957-06-03
Abstract: a -b -Epoxypropionaldehydes of the formula <FORM:0807605/IV (b)/1> where R is an alkyl radical, are prepared by treating an a -methylidene alkanal with hydrogen peroxide in the liquid phase in the presence of sufficient of a basic agent to maintain a pH of 4-10.5, preferably 6.5-8.5.  Suitable basic agents are alkali and alkaline earth oxides and hydroxides, basic-reacting salts such as watersoluble carbonates, bicarbonates and phosphates, and organic bases such as amines.  A diluent may be used, such as water, tertiary alcohols, primary alcohols, polyhydric alcohols, ketones, ethers and esters, in which case the preferred concentration of reactants is not more than 50 per cent by weight of the reaction mixture, more preferably 5-15 per cent by weight.  Reaction temperatures below 100 DEG  C. are preferred, particularly 20-60 DEG  C.  Preferably the mol. ratio of hydrogen peroxide to a -methylidene alkanol does not exceed 1.5; with pH above 7 this ratio is preferably 1.02-1.2; with pH below 7 it is preferably at least 0.5, more particularly 0.8-1. Polymerization inhibitors and/or peroxide stabilizers may be present. The reaction product may be recovered by flash distillation under approximately neutral conditions using reduced pressure, or by ether extraction.  The epoxypropionaldehydes may be used without preliminary separation, e.g. by hydration to dihydroxy aldehydes, or by hydrogenation to glycerols.  In examples, acrolein and methacrolein are treated to produce the corresponding epoxyaldehydes. In one example using acrolein the product is hydrogenated in situ to glycerol.  Acidic by-products, such as acrylic and methacrylic acids, may be formed.  Other a -methylidene alkanols which may be used include a -ethyl, a -hexyl- and a -isopropylacrolein, in general those compounds with 3-9 carbon atoms giving the most favourable yields and conversions.  Specification 741,017 is referred to.
Patent GB-300292-A (GB)
Title: Improvements in and relating to machines for manufacturing concrete blocks and the like
IPC: B28B3/02
Filed: 1927-07-04
Abstract: 300,292. Enticknap, E. G. July 4, 1927. Endless-chain machines; rotarytable machines; tamping machines. -Comprises improvements in machines of the type described in Specification 237,996. According to one improvement, Fig. 1, the lower platen or table 1 is fixed, and the head 8, carrying the tamping- element 9 operable through an eccentric 12 &c., is connected through rods 7 to a crosshead 6 operable by an hydraulic ram 5 so as to depress the head to bring the tamping and pressing element 10 into operation and to raise the head &c. for removal and replacement of the mould. The mould 15 is movable on trollvs 16 running on rails having depressible sections supported by springs 18 on the platen 1. Fig. 3 shows another improvement wherein the lower platen 35, operable by the hydraulic ram 39, is furnished with a permanent mould box which is fitted with an ejector 37 operable by an hydraulic ram 38. The head 42 is loosely supported by pillars 44 sustained by springs 43 and is actuated for tamping by a piston 46; a final, increased pressure is applied through the head 42 by hydraulic rams 50. According to a further improvement, the press is overhung to render the mould accessible on three sides, and is furnished with a turntable; the moulds are furnished with means adapted to actuate levers controlling valves operating the press by the movement of the mould trollys. The various machines may be furnished with multiple heads and the mould trollys are adapted to be traversed over circular endless or other tracks under means for mixing and discharging material into the moulds and thence to the presses.
Patent GB-1330026-A (GB)
Title: Semiconductor switch
IPC: H03K17/693
Filed: 1971-05-28
Abstract: 1330026 Analogue gate; multiplex pulse signalling; A.G.C. INTERNATIONAL BUSINESS MACHINES CORP 28 May 1971 [10 July 1970] 17802/71 Headings H3T H4L and H4R A sampling circuit for analogue signals comprises a transistor T in common emitter configuration having an emitter resistance comprising a constant current source Io which continuously passes emitter current during operation of the circuit, in parallel with a direct current path comprising a drain-source path of a field effect transistor FET, the gain of the circuit being increased for sampling purposes by decreasing the resistance of the field-effect transistor with a sampling pulse applied to its gate. Spikes produced at the collector of transistor T due to the switching of field-effect transistor FET may be cancelled by feeding the sampling pulse via a capacitor 4 to the base of transistor T to provide an anti-phase spike at the collector of transistor T. The current source may be a transistor (6, Fig. 2, not shown) which may be temperature compensated. The current source Io may be adjusted so that the drainsource voltage of the field-effect transistor is always zero. A multiplex sampler uses a plurality of such sampling circuits (Fig. 3). In it the gates of the FET's are operated sequentially by a pulse travelling down a transmission line 12 connected to each gate and the sampled outputs are fed from the collectors of the transistors via a similar transmission line 15. Delay lines T12, T23 may be inserted in each part of either transmission line to clearly separate the samples.
Patent GB-613881-A (GB)
Title: An inflatable boat and the like and an envelope therefor
IPC: B63C9/22
Filed: 1946-06-14
Abstract: 613,881. Receptacles for inflatable lifesaving appliances. WINGFOOT CORPORATION. June 14, 1946, No. 17890. Convention date, Jan. 17. [Class 77] [Also in Group XXXIII] In an assembly comprising an inflatable boat 3 or the like, an envelope 2 having a sealable water-tight closure 5 defining an opening 4 therein for receiving the boat in folded form and disengageable fastening means on the envelope for securing the closure, the fastening being effected by pins 11 secured to a cable 13 which is connected to a handgrip 14, there is provided means for at least partially inflating the boat, means for releasing the inflating means and disengaging the fastening means, means completing the inflation of the boat, and means for automatically releasing the last-mentioned inflating means actuated upon the partial inflation of the boat. The top part 24 of the boat is inflated by gas from a cylinder 36, and the bottom part 27 by gas from cylinders 39 and 40. The gas release means for the cylinder 36 is connected by a cable 43 to a loop 45 on the cable 13. The release means for the cylinders 39 and 40 are connected by short cables to the sides of the boat when the latter is folded. Pulling the handgrip 14 withdraws the pins 11, frees the opening 4, and releases the cylinder 36 so that the top part 24 of the boat is inflated. The boat releases itself from the envelope, and in unfolding itself releases the cylinders 39 and 40 which inflate the bottom part 27. Righting tubes 32, 33 are inflated simultaneously with the bottom part 27 and these tubes ensure that the boat will float in an upright position.
Patent GB-270128-A (GB)
Title: Improvements in apparatus for the collection of urine
IPC: A61F5/451
Filed: 1926-07-17
Abstract: 270,128. Castana, V. July 17, 1926. No Patent granted (Sealing fee not paid). Sanitary conveniences, personal, comprise a urine receiving member a, Fig. 1, made of rubber hardened except at the edge, and a collecting bag b, Fig. 2, detachably secured thereto, the latter having a non-return inlet valve and a screw or other closure c.
Patent GB-382958-A (GB)
Title: Improvements relating to containers or cartons
IPC: B65D3/14
Filed: 1931-06-22
Abstract: 382,958. Paper milk &c. vessels. WARE, H. M., Seletar, Dene Road, Northwood, Middlesex. June 22, 1931, No. 18073. [Class 66.] One or both ends of a paper or like carton for milk &c. are closed by a flanged cap a the flange a<1> of which is engaged by the turned-over end b<1> of the carton body b and by the pressed-out part of the flange c<1> of a second cap c disposed within the first one. Specification 368,314 is referred to.
Patent GB-742422-A (GB)
Title: An improved connecting device for use in fishing tackle
IPC: A01K91/04
Filed: 1953-07-01
Abstract: 742,422. Fishing lures. MORGAN, K. J. July 1, 1953, No. 18256/53. Class 48. A device for connecting a hollow spinner and a hook to a fishing line 9 comprises a shank 3 having open end loops 4, 4a of unequal size for connection to the line and hook respectively, each loop having a prong 5, 5a projecting alongside the shank so that the loops can be closed by locking means disposed around the shank, the construction being such that whilst fishing the spinner is disposed around the shank, prongs and locking means and is held by water pressure against the larger loop 4a and in order to uncover the locking means for disengagement of the device from the line and hook the spinner is slid over the smaller loop 4 on to the line. The locking means may comprise, as shown, a helical spring 7 surrounding the shank and the prongs and held under compression between the end loops 4, 4a. Alternatively the locking means may comprise a separate helical wire for each loop adapted to be screwed on to engagement with a lug projecting from each prong 5, 5a. Specification 665,139 is referred to.
Patent GB-1387882-A (GB)
Title: Asynchronous buffer device
IPC: G06F5/08
Filed: 1972-04-20
Abstract: 1387882 Shift register stores PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 April 1972 [23 April 1971] 18310/72 Heading G4C A shift register buffer of which the input and output bit rates may vary from the same nominal value is designed to be fabricated an an integrated circuit. As indicated in Fig. 1, it comprises n (here n = 5), stages 11-15 forming a shift register which receives binary data at 2 and delivers data at 3. Each stage comprises two bi-stable units, e.g. 1-11, 2-11, whose control inputs t are connected to the outputs of respective bi-stable units, 41-50 connected one to another as shown. When an input data clock pulse occurs at 5 it sets unit 41 so that unit 1-11 is set to the bit-state of the data now on input 2. Unit 41 sets unit 42, so causing unit 2-11 to take on the state of unit 1-11. The setting of 42 also resets unit 41 and sets unit 42 so that the bit-state of unit 2-11 is read in to unit 1-12 of the next stage of the register. In this way the input bit is passed down the register until it reaches unit 1-15 of stage 15 if the register was previously empty. In the absence of an output data clock on terminal 6, unit 50 can not be set, so that 2-15 can not take on the state of 1-15. Also, unit 49 being set unit 48 is maintained reset, so a subsequently occurring input bit can reach only unit 1-14 of the register. Thus each input bit progresses down the register until it is blocked by a previously stored bit. When a clock pulse occurs on terminal 6 unit 50 is set and unit 2-15 takes on the state of 1-15 to provide an output on terminal 3. Unit 50 also resets unit 49 so that 48 can now be set. This allows unit 2-14 to take the state of 1-14, unit 49 is again set, and 1-15 takes the state of 2-14. Similarly the data in each stage is moved rightwards one stage. To ensure that data on terminal 2 is written in to stage 11 only once per clock pulse a gating unit 7 is placed between units 41 and 42 so that unit 41 is set by the leading edge of the clock pulse but unit 42 is set by its trailing edge. The bi-stables in stages 11-15 may be formed from NAND gates and stages 41-50 from NOR gates, Fig. 2 (not shown), or vice versa, or all the bi-stables may be formed from NOR gates, Fig. 4 (not shown).
Patent GB-1326448-A (GB)
Title: Atomic absorption photometer
IPC: G01N21/31
Filed: 1971-06-01
Abstract: 1326448 Flame photometry HITACHI Ltd 1 June 1971 [3 June 1970] 18323/71 Heading G1A A flame photo-meter for measuring the absorption, of light at a particular wavelength, by a constituent of a test sample, is provided with photo-electric sensors responsive respectively to the characteristic emission of the flame and to the presence or absence of the constituent in the flame, in order to allow accurate zeroing of the photo-meter indicator while a standard sample is in the flame. The photo-meter comprises a hollow cathode lamp to direct the same spectrum as the constituent to be determined towards the flame 2. The flame 2 may be air-or-oxy-acetylene or nitrous oxideacetylene, which emits its own characteristic emission spectrum, a peak of which is monitored by filter-photo-cell combination 8, 10. The radiation transmitted through the flame is detected by cell 5 via a filter, or a prism or grating monochromator 4, passing a particular peak in the spectrum of the constituent to be detected (e.g. with sodium, the 330 mÁ plate). The other filter-detector pair 9, 11 monitor emission from the flame at another place in the spectrum (e. g. with sodium, the 589 mÁ peak) and thus detects presence or absence of the constituent in the flame.  In operation, without any sample in the flame, the flame emits its characteristic spectrum, Fig. 3 (not shown). On introduction of a standard sample e. g. distilled water or non-exchange water, into the flame, the intensity of emission suddenly drops. This is sensed by differentiator 19 in detector 10 circuit and a signal is applied to integrator 13 to initiate integration of the output of transmitted intensity sensor 5. At the same time a signal is applied to gate 23 which also receives a signal from inverter 22 since there is none of the constituent under test in the flame so that detector 11 is producing no output. The gate allows operation of automatic zero adjustment circuit 15 to operate on the output of logarithmic converter 14 (which produces signals representing absorbance) thus providing a null reading on indicator 17. This provides that when the test sample is tested an absolute value of absorbance will be displayed. After the standard has finished, the sample free flame reverts to full intensity emission of its characteristic spectrum. On introduction of the test sample, the sudden drop in intensity sensed by 19 again initiates integration but this time the gate 23 receives no output from 22 and the circuit 15 is not permitted to operate. Detector 11 channel includes a companion circuit so that the channel is unaffected by noise which might produce erroneous gating on of the circuit 15.