baber/WOPTO huggingface dataset:
Patent GB-1361315-A (GB)
Title: Internal combustion engine
IPC: F01N3/04
Filed: 1972-05-02
Abstract: 1361315 Treating exhaust gases T NISHINOMIYA 2 May 1972 [29 June 1971] 20348/72 Heading F1B A method of removing pollutants from the exhaust gases of internal combustion engines wherein, before being discharged to atmosphere, the exhaust gases pass through a mixing chamber and a dehydrating chamber, a liquid agent is fed continuously into the mixing chamber and there evaporates and undergoes a reaction with the pollutants, and the products of the reaction are separated out from the gases in the dehydrating chamber. Interposed in the exhaust pipe between the engine and a silencer is a mixing chamber consisting of a cylindrical drum 8 having a tangential inlet 9 and outlet 10 so that the gases are whirled in passing through the drum. In the end wall of the drum is an orifice 8a connected by a pipe to a tank containing a mixture of phosphoric acid, barium peroxide and hydrogen peroxide dissolved or dispersed in water. The liquid flows into the chamber 8 continuously. Downstream of the silencer is a dehydrating device in which are pieces of pumice stone containing compound substances including silic acid, calcium carbonate, aluminium, iron and magnesium. In operation, the vapour cools the walls of the drum and hence the exhaust gases and a thermal reaction takes place at 800 to 1000C. in which carbon monoxide, sulphur dioxide, lead, hydrogen chloride, nitrogen oxide, carbon, dust and other pollutants form solid particles. The vapour is cooled in the dehydrating chamber, the water condenses and is retained along with the products of reaction which solidify under the effect of the phosphoric acid.
Patent GB-1027602-A (GB)
Title: Buckle
IPC: A44B11/25
Filed: 1963-05-22
Abstract: 1,027,602. Buckles. A. G. CARTER and H. G. ALOFS. May 22, 1963 [May 3, 1962], No. 20357/63. Heading E2A. A buckle comprises a channel shaped frame 10 provided with aligned slots 22 in the opposite sides 23, 24 thereof and first and second bars 14, 15 for securing a belt each bar having end-extensions 18, 19 and 20, 21 of reduced thickness engaging said slots the first bar being initially receivable between said sides for engagement of said end-extensions with said slots only in inclined relationship and with the second bar absent, the bar being movable after said engagement into perpendicular relationship with the sides and so that thereafter it is movable in a direction parallel to the sides to clamp the belt against the second bar, the second bar being initially receivable between said frame sides in the presence of the first bar for engagement of the second bar end-extensions with the slots, only in inclined relationship with the sides and accompanied by outward deflection of the sides the second bar being - movable after said engagement into perpendicular relationship with the sides. The engagement of the end-extensions with the slots in inclined relationship is possible because the faces at the junction of the end extensions with the central portion of each bar are also inclined. When the second bar is in perpendicular relationship and at one end of the slots, portions 29 of the bar snap into engagement with recesses 28 to fix the bar in position. The first bar 15 is sufficiently long so that it can be moved by grasping the protruding end-extensions 18, 19 between the thumb and forefinger to enable the belt to be released.
Patent GB-764076-A (GB)
Title: Improvements in or relating to television entertainment distribution system
IPC: H04N7/16
Filed: 1951-08-29
Abstract: 764,076. Selective punching machines. INTERNATIONAL TELEMETER CORPORATION. Aug. 29,1951, No. 20376/51. Class 31 (2). [Also in Groups XVIII, XIX, XXXVIII, XXXIX, XL (b) and XL (c)] A paper-tape punching machine having three punch members, two of which are set by electrical signals and one of which is set manually, is employed at the receiver in a television system (see Group XL (b)) to record information indicating the date, time and transmission received. The machine, Fig. 11, comprises a frame 230 supporting three drums 235, 236, 237 on a shaft 234. Each of the drums is provided with radially outwardly extending punch members 238 which are arranged in groups spaced uniformly about the circumference of the drums. Each of the groups comprises a unique combination of from one to six punches spaced axially as shown. Drum 237 carries sixty such groups which may indicate the date within a sixty-day period, and the drum is rotated from an initial position against the action of a restoring spring 298 by means of an electro. magnet operating a ratchet and pawl mechanism, Fig. 13 (not shown). The electromagnet receives a train of from one to sixty pulses of current under the control of signals sent from the television transmitting station and thereby brings a selected group of punches indicating the date above the paper tape 243 which is carried on a die member 239. Drum 236 carries twelve groups of punches and is positioned in a like manner against a restoring spring 292 by an electromagnet receiving from one to twelve pulses of current. The third drum 235 also carries twelve groups of punches and is positioned manually by rotation of the transmission selecting control 31 which is similar to a telephone dial. At a stage in the operation of the receiver, after the drums 235-237 have been positioned correctly, a pulse of current is passed to an electromagnet 248 which moves die member 239 upwards and causes the punch members to perforate the tape. After each operation of the die member, the tape may be moved to present a new unpunched area by a ratchet device rotating the tape take-up reel. The operation of the die member also closes a contact whereby an electromagnet is operated and withdraws detent pawls to allow drums 236 and 237 to return to their initial positions under the action of springs 297, 298. Drum 235 is also released by a linkage 259, 260 disengaging a detent 255 which holds the drum in the position to which it is rotated by dial 31. The television receiver incorporating the paper-tape punching machine also forms the subject of Specification 764,078, [Group XL (b)].
Patent GB-1511266-A (GB)
Title: Pyridopyrazines
IPC: C07D213/80
Filed: 1975-05-14
Abstract: 1511266 Pyrido[2,3-b]pyrazines E R SQUIBB & SONS Inc 14 May 1975 [25 July 1974] 20400/75 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R, R 1 , R 4  and R 5  are each H or C 1-7  alkyl; R 2  and R 3  are each H, C 1-7  alkyl or alkanoyl, di(C 1-7  alkylamino)-C 1-7 -alkyl or Ph (optionally substituted by 1-2 of halogen, CF 3 , NH 2 , CO 2 H or C 1-7  alkyl or alkoxy). These compounds are prepared by converting an alkyl 4,6-dichloro-5- nitro - 2 - R 1  - pyridine - 3 - carboxylate to the 4 - R 2 R 3 N - substituted analogue, then to the 6 - amino - 4 - R 2 R 3 N - compound, reducing the nitro group to give the alkyl 5,6-diamino-2- R 1  - 4 - R 2 R 3 N - pyridine - 3 - carboxylate, condensing this with R 4 COCOR 5  and optionally hydrolysing the ester group to give the corresponding acid. Therapeutic compositions having anti-inflammatory and C.N.S. depressant activity comprise compounds of the above formula and may be administered orally, parenterally or topically.
Patent GB-470530-A (GB)
Title: Improvements in and relating to the preparation of iron-tanned leather
IPC: C14C3/04
Filed: 1936-07-24
Abstract: Complex iron compounds containing in the complex an organic substitution product of ammonia are used in tanning; the ammonia substitution radical may include a weak organic acid residue.  A suitable iron compound is hexaurea iron chloride [Fe(H2N--CO--NH2)6]Cl3 formed by adding the calculated amount of urea to iron chloride.  Other compounds are those of iron with formamide, acetamide, condensation products of aldehydes with amines or ammonia, e.g. hexamethylenetetramine, urethane, and amines.  More complex compounds may be formed by adding synthetic tanning agents, e.g. a salt of the naphthalene sulphonic acid condensation product with formaldehyde, to the iron complex.  Examples describe the preparation of tanning agents as follows: (1) hexaurea iron chloride; (2) a compound of iron chloride and acetamide in the proportions of 1 : 6, prepared by concentrating its aqueous solution in vacuo; the product is after treated with a naphthalenesulphonic-acid-formaldehyde tanning agent; (3) the condensation product of naphthalene sulphonic acid and formaldehyde is added to a complex salt prepared from iron chloride and hexamethylenetetramine, the solution being concentrated in vacuo; (4) a compound of iron chloride and formamide in solution is mixed with naphthalene-sulphonic-acid-formaldehyde; (5) a mixture of the sodium salt of naphthalene sulphonic acid--formaldehyde, iron chloride, sodium acetate, and urea is concentrated in vacuo; (6) hexaurea iron chloride is mixed in aqueous solution with the sulphonation product of residues from anthracene purification.  The Specification as open to inspection under Sect. 91 refers to the use of salts of the hexaacetato dihydroxy-tricarbamide-triferric base. This subject-matter does not appear in the Specification as accepted.
Patent GB-1276934-A (GB)
Title: Improvements in or relating to thin film
Inventor: MELROY DAVID OWEN
IPC: H01L49/02
Filed: 1970-04-29
Abstract: 1276934 Printed circuits WESTERN ELECTRIC CO Inc 29 April 1970 [5 May 1969] 20558/70 Heading H1R [Also in Divisions B6 and C7] A method of making a thin film resistorcapacitor circuit comprises the steps of depositing a layer of tantalum nitride 32 on a substrate 31, anodizing part of this layer intended for use as a resistor, 33, stabilizing the resistor by heat treatment, depositing a layer of beta tantalum 34 on the tantalum nitride and on the anodized part, etching a slit 35 in the two layers, where a capacitor is required, anodizing part of the beta tantalum layer intended for use as a capacitor, 36, depositing a contact layer 37 on the betatantalum layer and its anodized part, and etching the contact layer and the beta tantalum layer where they overlie the resistor and capacitor. Alternatively, the capacitative beta tantalum layer may be deposited first, followed by the resistive tantalum nitride layer. The anodic oxide layers, 33, 36, act as an etch stop when the upper layers are etched, thus protecting the resistor and the capacitor. The conductor contact film 37 may comprise either nickelchromium-gold, chromium-gold, or titaniumgold. The layers may be deposited by sputtering techniques:-The beta tantalum layer may be formed by heating the substrate to a temperature of 400 C. in a pressure of 1 Î 10<SP>-6</SP> torr, admitting argon into the low pressure chamber at a pressure of 20 microns of Hg, and using a direct current voltage of 4000 volts; the cathode being a circular tantalum disc 40 mils thick and 14 inches in diameter, of high purity. Sputtering may be conducted for 45 minutes, producing a layer of beta tantalum 5000 Angstroms thick. The tantalum nitride film may be similarly formed, having a pressure of 5 Î 10<SP>-7</SP> torr, admitting nitrogen at a pressure of 6 x 10<SP>-4</SP> torr, and then admitting argon at a pressure of 12 microns of Hg. Sputtering is effected by impressing 6600 volts D.C. producing a film 1000 Angstroms thick. The etching of the beta tantalum layer may be performed using an etchant of hydrofluoric acid, nitric acid, and water, in a ratio 5 : 1 : 1. If the contact layer is made of titanium, it may be etched using a solution of hydrofluoric acid, nitric acid and water, in a ratio 1 : 1 : 20.
Patent GB-441086-A (GB)
Title: Improvements relating to means for securing slabs or sheets in building constructions
IPC: E04B2/58
Filed: 1934-07-13
Abstract: 441,086. Securing roofing &c. slabs. DEANE, H. J., 30, Lytton Grove, Putney, London. July 13, 1934, No. 20595. [Class 20 (iv)] Sheets or slabs, especially hollow slabs formed by sheets 9, 10 spaced by corrugated sheets 11, are secured to beams or other supports 13 in building constructions such as floors, walls or roofs, by a resilient corrugated metal strip 6 engaging the support and the sheet 10 and clipped to the latter by a member 2. The member 2 has a hooked end 1 which passes through the sheet 10, and a crosspiece 3 which is of ridge form to seat in the corrugations of the strip 6. The resilient strip 6 is of general wedge form, slotted at 7 to slide past the member 2 and having ends 5, 4 to engage respectively the support 13 and the underface of the sheet 10. Sheets or slabs may be secured without perforating them, by causing the hook end of the member 2 to engage in frogs or depressions formed on the underface of the sheets &c. The hooked end 1 may be replaced by a pivoted bar and if this bar is parallel to the crosspiece 3, two slabs which abut may be secured by a single resilient strip.
Patent GB-623404-A (GB)
Title: Atomizer with compressed air generator operated by one hand
IPC: B05B11/06
Filed: 1946-07-10
Abstract: 623,404. Scent sprays. NADAI, A. July 10, 1946, No. 20629. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 13, 1947.] [Class 69 (iii)] A scent spray comprises a flat casing partitioned to accommodate a depressible pump piston 2 and a reservoir part casing having a spray nozzle 18 and reservoir 3. The partition is formed by interfitting inner and outer casings 6, 1 with the inner casing closed at its inner end to form the pump cylinder and connected by an opening 7 and distribution chamber 8 engaging the mouth of a conduit 10 on the reservoir with a pipe-leading to the nozzle. The reservoir casing is secured to the main casing by a screw 17 and has a guide slot 12 for a lug 11 on the piston. A bayonet strip on the piston normally seals the lateral spray opening in the casing. The piston may contain a reserve scent vessel.
Patent GB-868934-A (GB)
Title: Vibratory electromagnetic motor
Inventor: WAHL JOHN FRANCIS
IPC: H02K33/04
Filed: 1957-07-01
Abstract: 868,934. Hair clippers. WAHL CLIPPER CORPORATION. July 1, 1957, No. 20649/57. Class 131. [Also in Group XXXV] A vibratory motor comprises in the embodiment shown in Fig. 5 an electromagnet 30, 31 constructed to be energized by a fixed frequency alternating current and disposed in effective relation with a resilient vibratory armature 32 driving a resilient undertuned work arm 37 which is rigidly connected at one end to the armature 32, has an end and/or an intermediate portion extending alongside and spaced from the armature, and is positively connected to and drives a work element 42. Applied to a dry shaver or hair clipper the element 42 forms the cutter blade, and the armature and work arm are constructed to have natural tune frequencies which when there is no load on the blade are substantially different from the nearest multiple of the current frequency but which change toward resonance with the multiple when load is encountered whereby the armature vibration amplitude is increased. The armature and work arm vibrate in mutual opposition and have masses which mutually counterbalance thereby eliminating external vibrations. Embodied in a hair clipper Fig. 12 similar to that disclosed in Specification 793,742 which is referred to, the armature 60 has a resilient arm 61, 62 to which is fixed one end 66 of the work arm 65 which carries a bracket 69 whose finger 70 engages the movable blade 71. In another embodiment Fig. 13 the armature 43 is pivoted on a shaft 43a, oscillates relatively to pole faces 44, 44a but does not engage them, and is connected to the resilient work arm 44b carrying the work element 44d.
Patent GB-1468208-A (GB)
Title: Supporting members for the interior harness of protective helmets
IPC: A42B3/14
Filed: 1974-05-10
Abstract: 1468208 Helmets SCHUBERTH-WERK 10 May 1974 [12 May 1973] 20683/74 Heading A3V A plastics support member for a protective helmet comprises a central vortex 1 from which support straps, attachable to the helmet radiate, one pair of straps 2a including a slot 8 at the end of extension portion 7 which is joined to the free end via ribs 9. These straps which are shorter than the remainder are thus more flexible.
Patent GB-1347561-A (GB)
Title: Dynamo-electric machines of the reluctance type
IPC: H02K19/10
Filed: 1971-04-19
Abstract: 1347561 Core constructions NATIONAL RESEARCH DEVELOPMENT CORP 19 April 1971 [30 Jan 1970] 20689/71 Heading H2A The rotor of a two pole or four pole reluctance type dynamo-electric machine carries a squirrel cage winding and has a single main flux barrier (two pole machine) or two main flux barriers (four pole machine) with a span equal to the pole pitch, and a single auxiliary flux barrier (two pole machine) or at least two auxiliary flux barriers (four pole machine) of smaller span. In a four pole machine as shown in Fig. 1 there are two main flux barriers 1, 2 each spanning a pole pitch and the adjacent ends of the two flux barriers being spaced apart by a pole pitch. The auxiliary flux barriers 3, 4, may be located as shown or, alternatively, may be located radially outside and generally parallel to the main flux barriers, Fig. 2 (not shown). Alternatively, Fig. 3 (not shown), there may be four auxiliary flux barriers, two as shown in Fig. 1 and two as in Fig. 2. There may be axially extending, peripheral channels on the quadrature axes, Figs. 5 to 7 (not shown), these being filled with conductive material forming part of the squirrel cage. In a two pole machine, Fig. 8, there is a single main flux barrier 71, the ends of which lie on a diameter of the rotor and accordingly span the pole pitch. There is also a single auxiliary flux barrier 74 disposed as shown. Peripheral channels 75, 76, are provided on the quadrature axis.
Patent GB-1508287-A (GB)
Title: Magnetic tape scanning apparatus
IPC: G11B5/52
Filed: 1976-05-19
Abstract: 1508287 Rotary head scanning device ROBERT BOSCH GmbH 19 May 1976 [22 May 1975] 20692/76 Heading G5R [Also in Division F2] A device for scanning inclined tracks on a magnetic tape comprises a magnetic head wheel 4 located in the gap between the two parts 1, 2 of a tape guide drum and secured to one end of a drive means 10 rotatably mounted substantially coaxially within the drum 1, 2 in bearings 11, 12 of which one is nearer the wheel 4 than the other, and means 24, 27 for adjusting the position of said nearer bearing 12 transversely of the drum axis. This adjustment ensures that the heads 5 scan a circle co-axial with the periphery of the drum 1, 2. The bearings 11, 12 support the rotor 10 of head wheel motor 7, bearing 11 being adjustable in height to thus vary the height of the scan path by means of a pressure disc 13 and a threaded pin 14, and bearing 12 being biased downwards by plate springs 17 and having its outer ring fitted into a sleeve 20 retained between a threaded ring 21 and three conical-tip, equi-angularly spaced threaded pins 24, 27, of which one 24 has disc springs 26 acting on a plunger 25 to form a resiliently yieldable tip so that centring of the wheel 4 can be effected by adjusting one or both of the other pins 27. A signal transmitter has a stationery part 30 and a part 31 rotating with head wheel 4 and having a bore 32 giving access to a screw 23 securing wheel 4 against a reference surface 29 on a sleeve 28 fitted on rotor shaft 19 in the manner disclosed in Specification 1,508,288.
Patent GB-1000752-A (GB)
Title: Improvements in or relating to towed paving machines
Inventor: JENNINGS CHARLES E
IPC: E01C19/48
Filed: 1962-05-29
Abstract: 1,000,752. Road making machines. RENNER CO. May 29, 1962, No. 20709/62. Heading E1G. [Also in Division B7] A road making machine comprises a hopper 10 having a pair of hollow frame members 23, 24 communicating with apertures in the front and rear walls 20, 25 respectively of the hopper and extending forwardly of the hopper where they support means for coupling the machine to a towing vehicle. Mounted within the members 23, 24 are elongated frame members 26, 27 pivotable relative to the members 23, 24 in a vertical plane about points 28. A vertically adjustable screed 40 has a front wall 41 adjacent the hopper opening 11 and side walls 38, 39 the rear portions of which are pivoted at 43 to the members 26, 27 and the front portions to brackets 36. The brackets are carried by screws 34, 35 which are screwed through blocks 32, 33 mounted for pivotal movement about a horizontal axis in bifurcated portions 30, 31 of the members 26, 27. The thickness of the paving material being laid is shown on a guage comprising an arm 67 secured to the side wall 38 of the screed and a second arm 68, pivoted to arm 67, which is adjustably secured to a bracket 69 on member 26 at one end and at the other end forms a pointer registrable with a gauge plate 70. The screed and the rear portion of the members 26, 27 can be raised as a unit relatively to the hopper by a winch 71 actuating a cable attached to the screed. The means for coupling the machine to the towing vehicle comprise a framework 49-54, mounted on the forward portions of the members 23, 24, and rods 55, 56, actuated by means of handles 61, 62, which pass through frame members 53, 54 and carry freely pivoting hooks 63, 64 respectively at their outer ends. In use, brackets 65, 66 on frame members 53, 54 are slid on to the axle of the towing vehicle with the hooks 63, 64 hanging down and the handles 61, 62 are operated to draw back the rods 55, 56 thus causing the hooks 63, 64 to engage around the axle. Alternative coupling means, which are adjustable longitudinally and transversely of the road making machine, Fig. 7, include a pair of jaws, each comprising, Fig. 8, U-shaped members 85, 86 pivoted together at 94<SP>11</SP>, the member 86 being normally held in the full line position of Fig. 8 by engagement of a spring biased latch 94, pivotally mounted at 94<SP>1</SP> on member 85, with a projection 93 on the member 86. To engage the jaw on a truck axle, the latch 94 is first disengaged from the projection 93, by means of a chain 89 connected through a shaft 91 with actuating handles 92, to allow the member 86 to pivot to the broken line position. It is then engaged about the axle and pivoted back to the full line position and the latch 94 is re-engaged with the projection 93.
Patent GB-968814-A (GB)
Title: Improvements relating to electrical connectors and electrical connector contacts, particularly for vehicles
IPC: H01R13/28
Filed: 1963-05-24
Abstract: 968,814. Two-part couplings. M. HARTING, [trading as WILHELM HARTING WERK FUR ELEKTROTECHNIK UND MECHANIK]. May 24, 1963 [May 25, 1962], No. 20753/63. Heading H2E. A contact for the interconnection of cables, consists of a strip of resilient material (e.g. rolled bronze) having one edge rolled back over the major face to form a hollow socket 2 (Fig. 6), leaving an axial slit between edge 3 and the major face, and an offset flat portion 4 between the socket 2 and the opposite edge so that two such contacts when axially aligned will slidaby interfit the portion 4 or 4<SP>1</SP> of the one entering the socket slit of the other and being resiliently gripped therein. This is allowed by slots 5, 5<SP>1</SP> and the off-setting of the blade portions 4, 4<SP>1</SP> at 6, 6<SP>1</SP>. Locking elements are provided on each contact in the form of abutments 8, 8<SP>1</SP> and holes 7, 7<SP>1</SP>. Clamping means 9, 91 for cable ends, or soldering tags 10 (Fig. 3, not shown), are provided at the ends of the contacts. In another embodiment (Figs. 8 and 9) interfitting contacts 11, 11<SP>1</SP> each having a bent portion 15, 15<SP>1</SP> and a blade 16, 16<SP>1</SP> are secured to a bevelled copper support 12, 12<SP>1</SP>, which may have its other end bent. A multiple contact arrangement may be formed by securing several such members in a common housing. In a further embodiment (Fig. 15), one of the coupling contacts is a mirror image of the other. The retainer blade 26 may be bent (Fig. 14, not shown) to form an incomplete circle which fits into the complementary socket 25. The entry apertures to the sockets may be flared.