baber/WOPTO huggingface dataset:
Patent GB-610273-A (GB)
Title: Improvements in or relating to apparatus for testing the teeth of gear wheels
IPC: G01B5/20
Filed: 1946-04-03
Abstract: 610,273. Gauging toothed gears. NAPIER & SON, Ltd., D., and CROOK, W. C. H. April 3, 1946, No. 10309. [Class 106 (ii)] Apparatus for testing the interengagement of the teeth of two gear-wheels comprises a twopart strap C, D connected together by a double hairpin or other spring, the outer end of each part C, D being secured by screw-adjusting means C<2>, D<2> to a bracket F which is clamped by a screw F3 to one gear-wheel or to a disc &c. secured thereto, the strap parts C, D passing around the edges of discs or quadrants A<1>, B<1> respectively, formed on or secured to the gears and having their peripheries coincident with the base circles of the respective gears, and an indicating or recording pointer K<2> which moves in accordance with any variation in the distance between the inner ends of the strap parts C, D as the gears rotate. The spring wire forming the yieldable connection between the parts C, D is extended and attached to a pivoted toothed segment in engagement with a pinion to which the pointer K<2> is secured, this pointer moving over a scale or adapted to make a trace on smoked glass. The apparatus must be moved and secured in several positions if all the teeth are to be tested.
Patent GB-245648-A (GB)
Title: Improvements in tennis racquets
IPC: A63B51/12
Filed: 1925-04-20
Abstract: 245,648. Lawrence, N. April 20, 1925.. Rackets.-Means for tensioning the strings of a tennis racket comprise a series of independently operable devices, each device consisting of a tubular, internally-threaded stem 10, which is slidable in a bush 7, rigidly fitted into the frame 2, and is provided at its inner end with a curved guide 11 over which a string 4 passes. A screw 14, having a collar 15 engaging the bush 7, is adapted to be screwed into the stem 10 by means of a key 18. Rotation of the stem is prevented by projections 13 on the stem engaging recesses in the bush.
Patent GB-178827-A (GB)
Title: Improvements in combustion chambers for internal combustion engines
IPC: F02B77/11
Filed: 1922-04-11
Abstract: 178,827. Soc. des Moteurs Gn÷me et Rhone. April 19, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Cylinders receiving liquid fuel.-Fuel is injected radially or nearly so by an axially-disposed nozzle 6 against a ring 1 insulated from a water-jacketed cylinder head and barrel by washers 2, 3. In a semi-Diesel engine, the combustion space is fitted with an igniting-chamber 7, adapted to be externally heated at starting; or electric ignition may be used.
Patent GB-704662-A (GB)
Title: System of preparation and combustion of peat and similar fuels
IPC: F23K3/06
Filed: 1949-04-20
Abstract: 704,662. Pulverising fuel. BROWN & CO., Ltd., J., and BUCHER, J. B. April 20, 1949, No. 10436/49. Class 59 [Also in Group XII] Peat or similar fuel is partially dried while in lump form on its way to the combustion chamber by hot waste combustion gases which have already passed through a heat exchanger to give up heat to combustion air and is further dried during pulverization by the heated combustion air. As shown, peat or similar fuel whilst passing along a conveyer 1 to a pulverizer 2 is heated by exhaust gases supplied through nozzles 10 from the combustion chamber 5 of a closed cycle air heater or boiler. A combustion air heater 7 is arranged in the pipe 6 between the combustion chamber 5 and the nozzles 10 and supplies hot air to the pulverizer 2 to continue the drying of the fuel.
Patent GB-558603-A (GB)
Title: Improvements in a connector
IPC: H01R13/28
Filed: 1942-07-28
Abstract: 558,603. Two-part couplings. FORD MOTOR CO., Ltd. July 28, 1942, No. 10554. Convention date, Oct. 31, 1941. [Class 38 (i)], A coupling, in which the number of contacts, can be readily adjusted comprises a series of blocks 12 ... 14 secured together by a bolt 16 and having cavities in their opposed surfacesthat form spaces to receive one or more identical contacts 15 between each pair of blocks. The recesses are shaped at one end to fit the central part 18 of the contact clip and at the other to fit the. ferrule 22 in which the conductor is soldered, the two parts of the recess being connected by a slot in which, the offset shank 24 is located. Each contact. is formed from a blank and forms a clip 18 and tongue 20, such that two such contacts fit together with the tongue of each inserted in the: clip of the other.
Patent GB-527250-A (GB)
Title: An improved storage container for materials in the form of dust
IPC: F02M21/12
Filed: 1939-04-05
Abstract: 527,250. Hoppers; conveyers. HANNOVERSCHE MASCHINENBAU AKT.-GES. (VORM G. EGESTORFF (HANOMAG). April 5, 1939, No. 10606. Convention date, June 7, 1938. [Class 78 (i)] A storage container for material in the form of dust such as fuel for internal combustion engines comprises also a discharge funnel along the surface of which compressed air is blown and a drop conduit to which the funnel leads. The discharge funnel is formed of overlapping frustro-conical rings O each comprising an annular chamber R with entrance and discharge apertures F and B respectively, the latter pointing in a direction along the conical surface of the funnel towards the drop conduit P so that a continuous current of air tends to blow the material towards the conduit. The funnel is surrounded by a jacket enclosing a space to which the compressed air is led through an opening E. The upper end of the drop conduit is perforated at I and surrounded by a jacket to which compressed air may also be supplied so that an upwardly directed stream of compressed air prevents the material from caking.
Patent GB-993156-A (GB)
Title: Quinolizine derivatives
IPC: C07D317/58
Filed: 1962-03-20
Abstract: The invention comprises compounds of the general formula <FORM:0993156/C2/1> and their non-toxic acid addition salts wherein R1 is a hydrogen atom or a C1- 7-alkyl. A halogenated-C1- 7-alkyl group, a monocyclic aryl group, an alkyl-, halogenor alkoxy-substituted monocyclic aryl group or a monocyclic aryl C1- 7-alkyl group, R2 is a hydrogen atom or a C1- 7-alkyl group and R5 is a bivalent radical which together with the adjoining carbon atoms of the quinolizine radical forms a substituted or unsubstituted benzene or indole radical which may have as substituents C1- 7-alkyl groups and/or C1- 7 alkoxy groups or a combination thereof or a methylenedioxy group and X is =C=O or =CH2 and the preparation thereof by cyclizing by heating under reflux conditions in an inert organic solvent a compound of the formula <FORM:0993156/C2/2> and if desired reducing the oxo group formed. Compounds of the invention where Z=CH2 are also prepared by reduction of the corresponding quinolizium quaternary salt or by reduction with subsequent ring closure of the reaction product of a glutaric aldehyde and tryptamine.  Tetrahydro pyridine derivatives used as starting materials are prepared by reacting 3-R1R2-glutaric anhydrides with a phenyl ethylamine or a tryptamine to give an N-2-R3-3-R1R2-glutaramic acid (where R3 is a substituted phenyl or endolyl residue) and cyclizing this after esterification to give a dihydro pyridine derivative which is reduced.  3-(4-Methylphenyl) glutaric acid anhydride is prepared by reacting 4-methylbenzaldehyde with ethyl acetoacetate to form diethyl 2,4-diacetyl-3-(4-methylphenyl) glutarate, hydrolysing this to give 3-(4-methylphenyl) glutaric acid and forming the anhydride. Similarly are prepared the above 3-R1R2-glutaric anhydrides.  Quaternary quinolizinium salts used as starting materials are prepared by reacting a 31-R1R2-5-bromovalerate with a phenylethylamine or a tryptamine to give a 1-(2-R3-ethyl)-4-R1R2-piperiol-2-one and cyclizing this with phosphorus oxychloride.  Ethyl 5-bromo-3-methyl-valerate is prepared from 3-methyl-5-valerolactone and hydrogen bromide in ethanol.  Ethyl 5-bromo-3-phenyl-valerate is also prepared.
Patent GB-214461-A (GB)
Title: An improved draining-board for crockery
IPC: A47L19/02
Filed: 1923-04-18
Abstract: 214,461. Holt, W. G. April 18, 1923. Draining-appliances for kitchen use.-A draining-board for crockery comprises a corrugated metal or other sheet nailed to slats 4, 5 connecting the frame members 1, 2, a collecting trough formed by a board 7 joining the slat 5 and the end frame member 3, and a board 10 pivoted at 11 to the upper end of the frame so that the latter may be supported in an inclined position. The upper and lower ends of the sheet 6 are covered by members 8, 9 secured to the top of the frame and to the slat 5 respectively. The outer edge of the member 8 forms a stop for the pivoted board 10, which, when the apparatus is not in use, may be folded into the position shown in dotted lines in Fig. 1. A trough may be provided at the upper end of the board and the pivoted member 10 may be arranged to rest on the top of the board when the latter is not in use.
Patent GB-824624-A (GB)
Title: Improvements in or relating to the treatment of polyesters
IPC: C07C51/09
Filed: 1958-04-02
Abstract: Terephthalic acid is obtained by heating a polyester of terephthalic acid and a glycol, particularly ethylene glycol, with water under pressure at a temperature above 100 DEG  C.  The reaction preferably takes place at between 150 DEG  and 250 DEG  C. and at pressures between 15 and 35 atmospheres gauge using at least one part and preferably up to four parts by weight of water per part of polyester. The reaction may be accelerated by the use of transesterification catalysts, e.g. sodium acetate.  Examples are given.
Patent GB-855267-A (GB)
Title: Method and device for determining spontaneous cross sectional variations in textile material
IPC: B65H63/06
Filed: 1959-03-26
Abstract: 855,267. Yarn cleaners. ZELLWEGER Ltd. March 26, 1959 [May 9, 1958], No. 10638/59. Class 120(2) [Also in Group XXXVI]. In a method of and apparatus for indicating short term cross-sectional variations in a textile material the material is drawn through a condenser arrangement having two measuring fields connected in different arms of an electrical bridge circuit so that whereas short term variations in cross-section of the material unbalance the bridge long term variations have an equal effect on each measuring field and balance cut. Fig. 2 shows a bridge circuit energized by a high frequency oscillation generator 1 and comprising in two arms a capacitor arrangement 3 which as shown in Fig. 1 has an electrode assembly supported on an insulated base plate 10 so as to form two condensers comprising electrodes 4, 5, and 4, 6. The textile material 9 to be investigated is drawn so as to form a dielectric between the plates of the condensers and any out-of-balance voltage produced across the bridge is rectified in circuit 13, 14 to produce a A.C. voltage across terminals 12, 15. The variable capacitor 7 is adjusted so that with empty measuring fields zero output voltage is obtained from the bridge. If due to a short term cross-sectional variation in the material 9 there is more material in one of the fields compared with the other an out-of-balance voltage is obtained across terminal 12, 15. In the case of long term variations in cross sectional area of the material the bridge remains in a balanced condition. Alternative arrangements of the bridge circuit are described with reference to Figs. 10 and 11 (not shown). Fig. 12 shows an arrangement in which the out of balance voltage produced from the bridge is amplified in a transistor 42 and applied to a trigger circuit 46 to control a relay 47 so that when short term variations in the cross-sectional area of the material under test occur the relay is operated to actuate a cutter 55, 56 to separate the textile material at the faulty position. A trigger circuit using transistors is described with reference to Fig. 13 (not shown). The length of the small electrodes may be changed and the spacing between them varied as described in connection with Fig. 9 (not shown) since it is shown mathematically that these factors are dependent upon the standard short term variations in crosssectional area which may be expected with various types of textile material. Thus in respect of cotton the shorter electrodes of the arrangement should have a minimum length of four millimetres and a maximum of 30 mm. For wool a length varying between 4 and 60 mm. For cotton the distance between the electrode centres should be between 10 and 30 mm. and for wool between 10 and 80mm. A scale on the condenser arrangement Fig. 9 (not shown) indicates the distance between the electrode centres.
Patent GB-107449-A (GB)
Title: Improvements in a Combined Honing Stone and Strop.
Inventor: BRACHER KARL
IPC: B24D15/08
Filed: 1916-07-27
Abstract: 107,449. Bracher, K. July 27, 1916. Hotter; strops. - Consists in combining a hone with a strop. The hone is formed with projections 2, and the strop 3, which lies above and is supported at the ends of the hone, is formed with corresponding openings. The strop may be so tensioned that its surface alone is operative, or, by slightly relieving the tension, the strop is depressed by the application of a razor &c. thereto and both the honing and stropping surfaces become operative. The ends of the strop are secured by fastenings 5 and adjusting-screws 7 ; the flat top of the fastening is formed with depending wings having ribs to engage grooves 6 in the sides of the hone, and the vertical member is formed with a curved extension 8 over which is led the end of the strop which is secured by pointed tongues 9.
Patent GB-216502-A (GB)
Title: Process and installation for supplying oxygen and other gases to devices using the same
IPC: F17C9/02
Filed: 1924-04-30
Abstract: 216,502. De Wendel et Cie, Les Petits Fils de F., (Assignees of Weber, R.). May 22, 1923, [Convention date]. Revaporizing liquefied gases.-Oxygen for use in autogenous welding or cutting apparatus &c. is conveyed to the vicinity of the apparatus in 'liquid form in insulated vessels, evaporated by the circulation of a gas or liquid between the envelopes forming the wall of the vessel. One or more such vessels may be connected with reservoirs or tubes from which the welding &c. apparatus is supplied and valves may maintain different pressures in the reservoirs. Each liquid oxygen vessel may be provided' with a rectifying apparatus, to increase the purity of the oxygen supply. The Specification, as open to inspection under Sect. 91 (3) (a) states that the heating of the oxygen vessel may be effected by an electrical resistance or by metallic contact. This subject-matter does not appear in the Specification as accepted.
Patent GB-690621-A (GB)
Title: Improvements relating to pneumatic pressure motors
Inventor: BAYES CHARLES ARTHUR
IPC: B60S1/10
Filed: 1950-05-01
Abstract: 690,621. Compressed-air engines; vacuum engines. TRICO-FOLBERTH, Ltd. July 30, 1951 [May 1, 1950], No. 10701/50. Class 122(iii) [Also in Group XXVIII] In a pneumatic motor having a piston 2 reciprocated in a cylinder 1 by applying a pressuredifferential alternately to opposite ends of the cylinder the piston rod 4 is formed with a pump chamber 6 slidable on a fixed pump piston 7 that extends into the cylinder 1 from one end and the pump piston 7 has an axial bore 9 which communicates through suitable inlet and outlet valves with pump intake and delivery ports. A pin 14 attached to the piston rod moves, through a known valve mechanism, a slide valve 16 to connect a source of operating pressure or suction alternately with one or the other of two ports leading to opposite ends of the cylinder, the other port being opened to atmosphere. The bore 9 of the pump piston 7 communicates with a chamber 11 having an inlet and a discharge port each controlled by a non-return valve. Means such as a valve is preferably provided whereby the pump may be rendered inoperative and a disconnectible drive may be provided on the end 12 of the piston rod so that the, motor can be used to drive other apparatus such as a windscreen wiper.
Patent GB-180161-A (GB)
Title: Improvements in vertical retorts for destructive distillation
IPC: C10B1/04
Filed: 1921-04-13
Abstract: 180,161. Burnet, E. April 13, 1921. Retort furnaces.-Vertical retorts for the distillation of carbonaceous material and of the kind having the horizontal cross-section considerably longer than it is wide, are constructed with ex. pansion openings b so that the material may spread out to avoid packing and caking and to facilitate the withdrawal of distillation products. The upper parts, which are of cast-iron, are made of tapering sections a connected by short sections b having enlargements into which material may spread and provided with outlet ducts for the distillation products. The lower fire-brick portions have sections b which, although of different construction, have the same effect. These sections are enclosed between horizontal partitions g forming spaces h in communication with flues i whereby circulation of heating gases or air may be set up for heating or cooling purposes. The retorts are heated by burners at opposite ends of combustion chambers, shown in section at the lower left-hand portion of Fig. 3, which communicate with the heating flues. Specifications 12254/14 and 148,943, [both in Class 55 (i), Coking &c.], are referred to.
Patent GB-309446-A (GB)
Title: Improvements in or relating to the destructive hydrogenation of coal extracts
IPC: C10G1/00
Filed: 1929-04-08
Abstract: 309,446. Pott, A., and Broche, H. April 10, 1928, [Convention date]. Grant of Patent opposed. Hydrogenation, destructive.-In processes for the destructive hydrogenation of carbonaceous materials in which the material is first treated with solvents, e.g. as described in Specification 293,808, the extracts obtained are preliminarily hydrogenated in the presence of hydrogenating catalysts and the products are then destructively hydrogenated in the presence of splitting catalysts. The hydrogenating catalysts specified comprise finely distributed metals, metal oxides, acid forming oxide or mixtures thereof, while the splitting catalysts comprise metal halides particularly those of the heavy metals, e.g. chlorides of iron, tin, cobalt, nickel, manganese, or chromium. 1 kg. coal extract obtained by treating coal with a mixture of tetralene and phenols as described in Specification 293,808 is heated in a rotating autoclave for three hours at 400-420‹ C. in the presence of molybdic acid and under a hydrogen pressure of over 100 atmospheres. Only 2-3 per cent of incrustations are formed and a small amount of gas. The product is fractionated and the fraction distilling between 200-350‹ C. is heated to 440-460‹ C. under a pressure of over 100 atmospheres, in the presence of hydrogen and molybdic acid, the vapour formed being passed into an adjacent vessel containing manganous chloride and heated to 500-550‹. Specification 299,021 also is referred to.
Patent GB-816529-A (GB)
Title: Improvements in or relating to closure devices particularly for ladies' hand bags and the like
IPC: E05B65/52
Filed: 1957-04-03
Abstract: 816,529. Latches. REITZEL, G. [trading as DRESCHER & KIEFER]. April 3, 1957 [April 6, 1956; Feb. 15 1957], No. 10851/57. Addition to 727,113. Class 44 The closure device of the parent Specification is modified in that a single closing member is provided which is slidable under spring action in one direction into the closure position and is adapted to be slid in the opposite direction to occupy the open position at which it is held by a spring- pressed arresting device capable of being released automatically when the bag or the like is closed, the closure member, when in the closed position acting to hold the arresting device in a retracted position. In the arrangement according to Fig. 2, the device consists of a frame 1 and a housing 2, attachable to for example, the flap and body respectively, of a handbag. A spring- loaded slidable bolt 10 is retractable from a recess 19 by a spring-loaded plunger 14 having a nose portion 15 which engages the bolt 10 through a hole 13 therein. Another hole 12 in the bolt is engaged, in the retracted position of the bolt. by a nose 8 which is provided on a spring-loaded plate member secured to the housing 2, and which, when the device is closed, is held away from the hole 12, by abutment of the plate with a bottom plate 6 of the frame 1. In another arrangement, Fig. 6, a spring- loaded slidable member 63 in a housing 61 is held in the retracted position shown by a spring-loaded lever 66 which, co-operates with a nose 64 of the member 63 and which when the housing 61 is engaged with a frame 51, is released by a pin 52 which bridges a cut-out in the frame 51.
Patent GB-251966-A (GB)
Title: Improvements in twine packages
IPC: B65H49/00
Filed: 1926-04-24
Abstract: 251,966. Plymouth Cordage Co., (Assignees of Brewster, E. W.). May 8, 1925, [Convention date]. Balls of twine. - A twine package in which the twine is adapted to be withdrawn in either axial direction is provided with means arranged to indicate that axial direction in which the twine should be withdrawn so as to subtract twist therefrom. The indicator comprises a mark, as shown at 16 in Fig. 1, imprinted on the exterior of the package and having a distinctive right-sideup position, or positioned at the end of the axis from which the twine should be withdrawn. Alternatively, a strip of paper 160, Fig. 4, bearing a printed indication may be secured under the outer layers.
Patent GB-108209-A (GB)
Title: A Device for Inking Draughtsmens's Pens.
Inventor: STACEY CYRIL FELLS
IPC: B43K11/00
Filed: 1916-08-02
Abstract: 108,209. Stacey, C. F. Aug. 2; 1916. Inkstands.-A device for inking draughtsmen's pens comprises a movable feeding member against which the pen is pressed and which is provided with means operating to displace and eject, from a normally air-tight container, a quantity of ink regulated by the extent of movement imparted to the said member. Fig. 3 shows such a device formed as a stopper for the inverted ink-bottle B. When the pen is pressed against the feed member E', the bead E<1> is raised against the action of the spring E<2>, thus opening a hole D<1> in the rubber bulb D which is deformed by the member E<4> thus causing ink to be ejected. When the pressure is removed, the bulb resumes its original shape, a small quantity of air being sucked in through the hole D<1>. A suitable stand for the ink bottle comprises a heavy base A with a drip channel A<5> and standard A<1>, the latter carrying gripping-arms A<2>.
Patent GB-944549-A (GB)
Title: Device for the quick attachment of grinding-wheel units of segments on a carrier plate
IPC: B24D7/06
Filed: 1962-03-22
Abstract: 944,549. Abrasive tools. DISKUS WERKE FRANKFURT AM MAIN A.G. March 22, 1962 [March 23, 1961], No. 10950/62. Heading B3D. A device for holding grinding wheel units or segments 5 on a carrier plate 1 comprises not less than three clamping units 2, 3, two of which extend inwardly from the periphery of the carrier plate with clamping faces 6 facing adjacent grinding wheel units or segments, and a third of which acts radially in opposition to the peripherally-arranged clamping units, the latter being fixed to the carrier plate whereas the outwardly-acting clamping unit can be locked or released so that a grinding unit or segment with a suitably-flared base can be inserted between the clamping units and held firmly or released. The grinding-wheel units may be cup-shaped with flared bases having conical surfaces 7. The surface 7 of each unit is engaged by stepped and tapered pressure pads 6 on two adjacent outer clamping units 2 and a pressure pad 12 on an inner clamping unit 3; each outer unit has two pressure pads engaging adjacent grinding units. The inner clamping units are releasably secured to the carrier plate by screws 4 in key-hole slots 8, 9 and have tapered surfaces 10 engaging a tapered surface 11 to provide a wedging action on the grinding units. The pressure pads may be of hard-wearing plastic material.