baber/WOPTO huggingface dataset:
Patent GB-100168-A (GB)
Title: An Improved Coupling Device for Trucks or Trailers for Vehicles.
Inventor: GEIGER CHARLES ALBERTUS
IPC: B60D1/18
Filed: 1915-02-18
Abstract: 100,168. Geiger, C. A. Feb. 18, 1915. Couplings for road vehicles and trains. - A coupling for trucks or trailers for road vehicles is designed to connect two vehicles at different levels and to provide a rigid connexion when backing. Each pivoted draw-bar a terminates in a convex slotted head c, which contains a pin d approximately at the centre of curvature of the outer surface. The two pins d are engaged by slotted links c coupled by a pin h which allows relative lateral movement. When backing, the parts come into contact relieving the links of strain, even if the draw-bars are at different levels, as shown in Fig. 3. The slots f are slightly wider at the end portions than at the middle.
Patent GB-763138-A (GB)
Title: New pteridin derivatives
Inventor: BOON WILLIAM ROBERT
IPC: C07D475/04
Filed: 1952-04-18
Abstract: The invention comprises dihydropteridin derivatives of the general formula <FORM:0763138/IV(b)/1> where X and Y are lower alkyl radicals of not more than 6 carbon atoms, B is an hydroxyl, amino or mono or disubstituted amino group, R1 is hydrogen, hydroxyl or a lower alkyl, phenyl or halophenyl radical and R11 is hydrogen or a phenyl or halophenyl radical; and their manufacture by reducing a pyrimidine derivative of the formula <FORM:0763138/IV(b)/2> where "Ar" is an aryl radical which may be substituted, e.g. by alkyl, alkoxy halogen or nitro radicals and R is hydrogen or an amino group, a lower alkyl radical of not more than 6 carbon atoms or a phenyl or halophenyl group, to reduce the -N = N-Ar group to an -NH2 group and effecting ring closure either spontaneously or by the action of heat.  The reduction may suitably be effected by means of zinc, iron or tin and acid or by hydrogenation in the presence of an hydrogenation catalyst.  In examples: (1) 5-p-chlorobenzeneazo-4-desylamino - 2 : 6 - bis - dimethylaminopyrimidine is reduced to give 2 : 4 - bisdimethylamino-6 : 7 - diphenyl - 7 : 8 - dihydropteridin; (2) ethyl - 4 - amino - 5 - p - chlorobenzeneazo - 2-dimethylamino - 6 - pyrimidylaminoacetate is reduced to give 4-amino-2-dimethylamino-6-hydroxy - 7 : 8 - dihydropteridin; (3) a -phenyl - a  - (5 - p - chlorobenzeneazo - 2 - dimethylamino - 4 - hydroxy - 6 - pyrimidylamino) - 4 - chloroacetophenone is reduced to 6 - p - chlorophenyl - 2 - dimethylamino - 4 - hydroxy - 7 - phenyl - 7 : 8 - dihydropteridine and (4) a  - phenyl - a  - (5 - p - chlorobenzenezao - 2-dimethylamino - 4 - hydroxy - 6 - pyrimidylamino) acetaldehyde is reduced to give 2-dimethylamino - 4 - hydroxy - 7 - phenyl - 7:8-dihydropteridine.  Other compounds within the above general formula which may be prepared by these methods are specified.  The Provisional Specification relates to dihydropleridin derivatives of the general formula given, wherein X and Y are hydrocarbon radicals which may be joined to form a heterocyclic ring, B is an hydroxyl, alkoxy, thiol, alkylthio, amino or substituted amino group, R1 is hydrogen, a hydrocarbon radical or an hydroxyl group, R11 may be hydrogen or a hydrocarbon or substituted hydrocarbon radical or a group -COR1 and the hydrogen atom in the 7-position may also be replaced by a hydrocarbon or substituted hydrocarbon radical.  Specifications 635,582 and 763,044 are referred to.
Patent GB-778528-A (GB)
Title: Climbing device for raising and lowering platforms
IPC: E04G1/20
Filed: 1956-01-20
Abstract: 778,528. Friction ratchet jacks; platform hoists. BERA BERLINER RAHMENGERUST GES. Jan. 20, 1956 [Jan. 24, 1955], No. 1942/56. Class 78 (3). A friction ratchet device for raising and lowering a working platform on a scaffold comprises two clamps slidably mounted on a scaffold standard, the lower clamp carrying the working platform and a pivoted link pivoted to a hand lever which is also pivoted to the upper clamp and which is used to raise and lower the device on the standard. As shown, Fig. 1, clamps 1, 2 are slid along a scaffold standard 3 by reciprocating a hand lever 5 hinged to the clamp 1 and to a rod 7 pivoted to the clamp 2 at 8, the platform (not shown) being suspended by a bar 9 suspended from the pivot 8. The clamps are provided with arcuate surfaces 15, 16, 17, 18 abutting detachable inserts 10, 11, 12, 13 which bear against the standard 3. The clamps are held in position by set screws 21, 22, 24 in brackets 19, 20, 23 on the clamps. The device is raised by operating the lever 5 after tightening screws 22, 24 and slightly loosening screw 21. To lower the device, the lever 5 is operated after moving the rod 7 to the position shown in chain dotted lines and tightening screw 21 and loosening screws 22, 24. In a second embodiment, Fig. 3, the arcuate surfaces on the clamps are formed by bolts 31, 32, 33, 34, and the set screws are replaced by springs 26, 27 removably screwed to the clamps at 28, 29. To raise the device the handle 5 is operated as before, but to lower the jack, the springs 26, 27 are turned through 180 degrees about the screws 28, 29, the rod 7 being left in the one position.
Patent GB-930474-A (GB)
Title: Improvements in centrifugal pumps and the like
Inventor: WARMAN C H
IPC: F04D29/28
Filed: 1961-01-18
Abstract: 930,474. Centrifugal pumps &c. RESEARCH & DEVELOPMENT PTY. Ltd. Jan. 18, 1961 [Jan. 19, 1960], No. 2051/61. Class 110 (1). In a centrifugal pump, blower, fan, compressor or the like of the volate type, means are provided for segregating and directing or for producing, segregating, and directing fluid of differing energy levels so that in the casing fluid of higher energy level envelops or substantially envelops fluid of lower energy level. The outer end of each impeller blade 4, Fig. 2, is formed with a groove 11 to reduce the energy imparted to the fluid in a zone 13 below that imparted to the fluid in two side zones 12, to compensate for the energy losses caused by friction between the casing walls and the fluid in the zones 12, whereby the fluid enters the discharge volute 20 with substantially uniform energy. The groove 11 is offset from the centre line of the impeller blade towards the impeller back plate 5 to counteract the effect of the single axial intake 8 which would otherwise cause the fluid energy to be greater adjacent the back plate 5 than adjacent the front plate 6. The groove 11 may extend to the back plate 5 which may then extend radially beyond the groove to impart additional energy by frictional drag. The discharge volute may in this case be offset from the central plane of the impeller. To assist in directing the higher energy fluid in the zones 12 towards the casing walls, the impeller side plates 5, 6 may be flared outwardly at 16; the casing side walls may be correspondingly bevelled at 43 and 54. To exclude higher energy fluid from the discharge, the entry 19, Fig. 4, to the volute 20 is located in a circumferential ridge 22, Figs. 2 and 4, with sloping sides 23 and located nearer the pump axis than the nearby outer wall 21 of the casing, the ends of the ridge merging into the outer wall at 24 and 25. The ridge 22, which contains the cutwater 26, may be offset from the central plane of the casing. The crosssectional area of the casing increases, as is usual, in the direction of rotation from the cutwater 26 to the beginning 28 of the volute 20 to accommodate the fluid discharged by the impeller, and thereafter decreases so as to maintain a constant average velocity in the region of the entry 19 to the volute. The impeller front plate 6 may be omitted. Where the fluid is abrasive, as with slurry or dredge pumps, the casing is provided with a peripheral lining, which may be formed in two parts 29, 31, and separate side linings 33, 45. The linings and the impeller are of hard metal as in the lower half of each figure or of natural or synthetic rubber bonded to metal reinforcements as in the upper half. Where hard metal linings are used, resilient sealing rings such as 57 are provided between the linings and the outer shell of the casing.
Patent GB-304473-A (GB)
Title: Multi-chambered pasteurizing apparatus for milk and other liquids
IPC: A23L3/16
Filed: 1928-01-21
Abstract: 304,473. Holte, H. Jan. 21, 1928. Multiple-way cocks.-A multiple-way cock 15 in a multi-chambered pasteurizer 1 for treating milk and other liquids receives a step-by-step motion and is divded by a partition 19 into an upper chamber 20 communicating with tube 16 and supply vessel 18 and a lower chamber 21 communicating with the milk outlet 26. The chambers 20, 21 have each an aperture 22, 24 which can be registered with a corresponding aperture 23, 25 on housing 14 for each of the pasteurizing chambers 4. The apertures 22, 24 are disposed so that they cannot simultaneously communicate with the same pasteurizing chamber. The intermittent turning of valve body 15 may be effected by a water-driven device consisting of a rocking receptacle 30, Fig. 5, divided by a partition 31 into two chambers which are alternately filled with water supplied from a constant level vessel 34 through a conical tube 32 having a vertically adjustable central spindle 33 for controlling the rate of flow. The water flows from each chamber through an outlet 37 and a channel 37<1> to a common opening 37<11>, and the rocking is accelerated by impact of the water on walls 36. A rod 38 attached to and rocking with receptacle 30 imparts longitudinal movement to a rod 39, Fig. 6, a projection 39<1> on which engages in an aperture 40 in gear wheel 12 so as to impart oscillating motion thereto to actuate the stirrers 8. The rod 39 has an inclined portion 44 which, by riding on wheel 12 causes the rod to be raised so that a projection 41 engages in turn with a series of arms 42 attached to vessel 18 and rotates it and the valve body 15. The intermittent motion of the valve body may also be obtained by clockwork or by an electromagnetic coupling connecting the mechanism intermittently with a rotating shaft &c. In a modification, Fig. 8, the valve body is divided by a partiton 48, so that the inlet and outlet apertures 49, 50 are on the same level, only one series of apertures 51 being provided in valve housing 14.
Patent GB-102184-A (GB)
Title: Improvements in Electric Switches.
Inventor: WILLIAMS ROGER HERBERT
IPC: H01H13/70
Filed: 1916-02-12
Abstract: 102,184. Brockelbank, C. H. Jan. 13, 1916. Lamp signals: lamp-group code signals.-To indicate to a pilot his height above the ground &c. when approaching an aerodrome at night, lamps are arranged upon horizontal surfaces, or surfaces parallel to the ground, carried by a mast at definite heights and mounted so as to be visible at points in the same plane and above but not below, or in the same plane and below but not above. The lamps may be of various colours or arranged in different forms, or differences in both colour and conformation may be employed, and the surfaces may be turned about their supporting-mast so that the lamps indicate the direc. tion of the ground wind. Other lamps mounted in funnels on the upper surfaces may indicate particulars of the flying-ground. Fig. 2 shows a mast carrying three planes B, C, D having lamps E, c of distinctive colours provided with horizontal screens F so that those on the plane B are only visible from above, and those on the planes C, D are only visible from below.
Patent GB-694134-A (GB)
Title: Improvements relating to x-ray apparatus
Inventor: NORTON CHARLES SYDNEY
IPC: G21K1/02
Filed: 1951-01-29
Abstract: 694,134. X-ray apparatus. NEWTON VICTOR, Ltd. Feb. 14, 1952 [Jan. 29, 1951], No. 2198/51. Class 98 (i). Radiographic apparatus includes a Bucky grid interposed in the path of the X-rays and oscillatable laterally with respect to the slots, means for vibrating the grid at the frequency (or a multiple thereof) of the A.C. supply to the X-ray tube, and means for varying the relative phasing of the grid oscillations and A.C. supply over a range of adjustment such that the grid stationary periods may be caused to occur at points in the cycle of the A.C. supply at which the voltage, and hence the X-ray emission, is low. The grid may be actuated by an electromagnet energized from the mains through a phase-shifting circuit. The relative phase of the grid oscillations is indicated as by a lamp, connected to the mains and varying in brightness with the voltage. The lamp is viewed through an aperture normally covered by a strip connected to the grid but uncovered when the grid reaches one of its extreme positions, and the phase-shifting circuit is adjusted until the apparent brightness of the lamp is a minimum. Alternatively an electronic device may indicate the phase shift on a dial, and may act on the phase-shifting circuit to maintain the correct phase relation. Specifications 557,121 and 672,868 are referred to.
Patent GB-324798-A (GB)
Title: Improvements relating to the utilisation of the steam produced in the production of cement by the wet method
IPC: C04B7/40
Filed: 1929-01-22
Abstract: 324,798. Eiger, A. Jan. 22, 1929. Rotary furnaces.-In the wet process for the manufacture of cement the slurry is dried by steam at a temperature. of about 400‹ C., and the resulting wet steam is reheated for reuse in the drying process, a surplus being available for other purposes. In the plant shown slurry is heated in a tank 2 to about 100‹ C. and is sprayed into the upper end of a drying-drum 3, at the lower end of which hot steam is supplied by a pipe 4. The wet stearn is drawn off from the chamber 5, part being returned to the drving- drum through the heater 10, while the remainder i'or use elsewhere is passed to a superheater 12. The waste gases from the burning-drum 16 pass over the superheater 12, heater 10, slurry tank 2, and an apparatus for heating the air for combustion. Any cement dust which settles in the chamber 17 is returned to the furnace by the screw 19.
Patent GB-538606-A (GB)
Title: Improvements in or relating to direction indicators for road vehicles
IPC: B62J6/00
Filed: 1940-02-05
Abstract: 538,606. Road-traffic signals. BIRD, J. C. Feb. 5, 1940, No. 2236. [Class 118 (ii)] A direction-indicator for use on bicycles and similar vehicles comprises a bracket 13 attached to the handle bars near one of the hand grips 15, an indicator arm 10 hinged at one end to the bracket, a spring 11 associated with the hinge and arranged normally to keep the arm in an inoperative position in general alignment with the movement of the vehicle, and a finger grip 16 in the form of a hook, eye, or the like by means of which the arm 10 can be swung into its operative position. The arm is hollow and is furnished on each side with a panel 17 illuminated by means of an electric lamp bulb 18 mounted at the pivoted end. When the arm is pulled into the operative position, the end of the bulb makes contact with a terminal 19, on the bracket 12, connected to a battery which may be placed in the arm itself.
Patent GB-455413-A (GB)
Title: Improvements relating to pads for curative treatment of varicose veins
IPC: A61L15/44
Filed: 1936-01-24
Abstract: 455,413. Bandages. LOBSIGER, E. SCHAERER-, 8A, Rue du ProgrÞs, Freibourg, Switzerland. Jan. 24, 1936, No. 2273. [Class 81 (ii)] A bandage or pad for treatment of varicose veins comprises a canvas or like bag 1 having a central seam 3 and seams 2 across opposite corners, the corners having button-holes 5 to receive buttons 7 on an elastic securing strap 6. The compartments of the bag are filled with granular sulphur.
Patent GB-1351922-A (GB)
Title: Nitrofuryl-triazolo-pyridazine derivatives
IPC: C07D487/04
Filed: 1973-01-16
Abstract: 1351922 Nitrofuryl-triazolo-pyridazine-derivatives BOEHRINGER MANNHEIM GmbH 16 Jan 1973 [21 Jan 1972] 2285/73 Heading C2C The invention comprises compounds having the general formula wherein R 1  is C 1-5  alkoxy or a saturated 5- or 6- membered heterocyclic ring connected via a cyclic nitrogen atom, and which can also contain a cyclic oxygen atom or an optionally C 1-5  alkylated cyclic nitrogen atom; and R 2  is a hydrogen atom or R 1  and R 2  together represent an additional C-N bond. They may be prepared by (a) dehydrating a compound of the formula (b) reacting a compound of the formula where Hal is a halogen atom, with a cyanide; (c) oxidatively cyclizing 6-cyano-3[2-(5-nitro-2-furfurylidene)-hydrazino]-pyridazine; or (d) treating N-(6-cyano-3-pyridazinylamino)-(5-nitro-2- furamidine) with an agent splitting off ammonia; whereafter the nitrile of general Formula I obtained in the above processes, are, if desired, reacted with an alcohol in the presence of gaseous HCl to produce a compound of the formula wherein R 3  is an alkyl radical, and, if desired, reacting compound IV with an appropriate heterocyclic amine; or (e) nitrating a compound of the formula The compounds of the invention exhibit high antibacterial activity in the urine and may be administered orally or parenterally in admixture with liquid or solid pharamaceutical diluents or carriers, or externally as powders or salves.
Patent GB-192599-A (GB)
Title: An improvement in control valves for gas purifiers
IPC: C10K1/28
Filed: 1922-01-26
Abstract: 192,599. Blakeborough, R. A., and Brown, J. F. Jan. 26, 1922. Purifiers.-In gas purifier valves of the Weck type, the main gas inlet and outlet connections are disposed to suit any positions of the inlet and outlet mains without interfering with the normal cycle of working. The main inlet b leads to a chamber d which communicates by vertical passages e with the respective upper compartments f having outlets f<1> to the respective purifiers. Bridging pieces g connect compartments f with compartments h having inlet openings h<1> from the purifier and leading by openings h<2> into a common outlet chamber i with a main outlet c. Screw-operated valves control the openings from the inlet chamber d to the outlet chamber e or to the bridge pieces g. The bottom of the outlet chamber i adjacent to the inlet b is inclined to afford a full inlet area. One of the vertical passages e is replaced by a pipe k affording a passage all round it in the outlet chamber, and the main outlet c is disposed adjacent to this pipe and a full area is afforded by enlarging the casing a as at a<1>. The pipe k may replace any of the vertical passages e and the main inlet may be positioned at any point clear of the passages e or k.
Patent GB-1140582-A (GB)
Title: Fluid-pressure servomechanism
Inventor: THAYER WILLIAM JOHN
IPC: F02K9/80
Filed: 1966-01-18
Abstract: 1,140,582. Fluid-pressure servomotor systems. MOOG Inc. Jan.18, 1966, No.2387/66. Heading G3P. The description is similar to that of Specifications 1, 140, 583, 1,140,584 and 1,140, 585 but the claims relate to a servomechanism comprising valve means which includes an input stage and an output stage, controlling flow of fluid to and from an actuator. Position feedback means are provided between the actuator and the input stage and positive and negative actuator load pressure feedback means are operatively arranged between the actuator and the valve means.
Patent GB-265209-A (GB)
Title: Improvements in or relating to weft-replenishing mechanism of looms for weaving
IPC: D03D45/20
Filed: 1927-01-27
Abstract: 265,209. Maschinenfabrik Rauschenbach Akt.-Ges., (Assignees of Bantle, K.). Jan. 27, 1926, [Convention date]. Shuttles, changing bobbins in, automatically. - In order that bobbins of different sizes may be employed, the magazine is provided with an adjustable plate for guiding the heads of the upper bobbins, while the lowermost bobbins are guided by a plate adjustable in the axial direction of the bobbins. The plate 6 for guiding the bobbins in the channel 3 and against a guide roll 4 is secured to the magazine by screws 5 passing through slots in the plate 6, which is adjusted in accordance with the diameter of the bobbins. The three lowermost bobbins are not guided by the plate 6 but their ends are supported and guided by a curved plate 7 mounted on adjustable rods 8. In order that the transferrer 9 may engage the bobbins centrally, an adjustable campiece 10 is secured to the transferrer and upon operation, engages the edge 13 of the guide wall 4, the cam being adjusted in accordance with the diameter of the bobbins.
Patent GB-833760-A (GB)
Title: Improvements in or relating to liquid transferring devices
Inventor: SCHILLING CLARENCE JOHN
IPC: F04F1/18
Filed: 1954-10-30
Abstract: 833,760. Raising liquids by heating. AIR PRODUCTS Inc. Jan. 25, 1956 [Oct. 30, 1954], No. 2429/56. Divided out of 832,607. Class 102(2). Apparatus for transferring liquid from a low level tank 10 to a high level tank 11 comprises a succession of uplift columns 12, 13, 14 and submergence columns 21, 22, 23 connected in series, the lengths S 1 , S 2 , Ss increasing progressively and the upper ends of the uplift columns being at different elevations the lengths L 1 , L 2 , L 3  increasing progressively, and means for partially vaporizing liquid in the uplift columns, which columns open at their upper ends to vapour collecting conduits. The liquid may be pre-heated by the heater 32 to near boiling point. In a modification the submergence columns 22, 23 and the tank 10 are cooled.
Patent GB-469564-A (GB)
Title: Improvements in the manufacture of shaped articles from polymerisable organic liquids
IPC: C08F2/02
Filed: 1936-01-27
Abstract: Shaped articles such as sheets or rods are moulded from polymerizable organic liquids containing the group CH2=CX where X is hydrogen or an organic radical, by placing the material in a vertical mould enclosed in a pressure vessel and heating the mould by a stream of hot gas, under pressure greater than atmospheric, and which impinges first on the bottom part of the mould, the top of the mould being left open. The material may be the monomeric liquid or a solution of the polymeric body therein. The sides of the mould may be spaced by yielding or unyielding distance pieces.  By heating from the bottom, thinner liquid from the top fills voids left by shrinkage on polymerization.  The gas may be circulated through a heater.  The mould sides and distance pieces may be highly polished.  In one example, a solution of polymethyl methacrylate in methyl methacrylate, together with benzoyl peroxide, in a mould formed of stainless steel plates separated by bars of the same metal, is placed in an autoclave through which is led air at 75-80 DEG  C. and 100 lb. per sq. in. pressure.  Mixtures of vinyl acetate and methyl methacrylate may be used.  In the other example, the mould is formed by metal plates pressed against and separated by metal-corded rubber strips and is heated in an autoclave by nitrogen at 150 lb. per sq. in. pressure, the temperature being raised from room temperature to 65 DEG  C. in one hour and maintained for five hours.
Patent GB-1451178-A (GB)
Title: Liquid-discharging bow
IPC: F41B9/00
Filed: 1975-01-21
Abstract: 1451178 Liquid-discharging bows MARVIN GLASS & ASSOCIATES 21 Jan 1975 [29 July 1974] 2566/75 Heading A6S A bow 12, e.g. of plastics, squirts liquid, e.g. water, through an opening 30 in a chamber 28 forming part of a simulated arrow 14 when a plunger 56 is moved inwardly, e.g. by a string 16 connecting the ends of the bow 12. Valves 34, 44 ensure that the liquid is drawn into the chamber 28 from a reservoir 22 as the plunger is moved outwardly into its cocked position and then that it is ejected only through the hole 30 as the plunger 56 moves inwardly. The bow 12 is hollow, the reservoir 22 being formed by two ribs 20; a hole 25 is used for filling the reservoir and has a plug 24. The chamber 28 may be moulded integrally with the bow 12. The plunger 56 is connected to a rod 58, both slidable within the chamber 28, the rod having at its rear end four fins 62 and two tabs 64 that form a slot for engagement of the string 16. An enlarged portion 60 provides a stop to engage the rear end of the chamber 28. The valve 44 consists of a weighted stem 48 having a rounded head 48a normally closing the aperture in a conical seat 52 of a housing 50 attached to the chamber 28. A tube 26 depends from the housing 50 and may be attached to the housing or formed integrally with it. The valve 34 comprises a stem 36 having a rounded head 36a which is biased by a spring 38 against an annular restriction 40 in the chamber 28.