baber/WOPTO huggingface dataset:
Patent GB-687975-A (GB)
Title: Improvements in free-swinging rotary sieving machines
IPC: B07B1/42
Filed: 1950-10-09
Abstract: 687,975. Sifting-apparatus. SIMON (HOLDINGS), Ltd., H., and BALL. J. S. Sept. 24, 1951 [Oct. 9, 1950], No. 24576/50. Class 117 In an electric motor drive for a plansifter the motor shaft is vertical and coaxial with the centre of gyration and the motor stator is rigidly fixed to revolving weights which ind u c e gyratory motion. A plansifter (not shown) is coupled to a housing bearing a shaft d to the ends of which are attached eccentric weights f which, when rotated, induce gyration of the sieve in a horizontal plane. Shaft d is rotated by an electric motor a through gearing h, i, m, n, the stator of motor a being rigidly mounted on the upper weight f with the shaft of the motor vertically coaxial with the centre of gyration of the whole unit so that the load on the motor bearings is constant. Electrical connections to the motor are through slip-rings o.
Patent GB-388449-A (GB)
Title: Locking gear for bottom doors of railway wagons
IPC: B61D7/16
Filed: 1931-09-03
Abstract: 388,449. Fastenings. BAILEY, D., Boyne Hill House, Chapelthorpe, near Wakefield, Yorkshire. Sept. 3, 1931, No. 24698. [Class 44.] Locking means for the hinged sides of railway wagons comprise curved bars 4 pivoted to the wagon side 2 at 3, bar guides 7 and obstruction bars 8. To open the side the obstruction bars 8 are pulled over by the hand-lever 12 until slots 11 are opposite the ends of the curved bars 4 and allow the latter to pass. The movement of the bars 8 is limited by stops 18, 19 and the hand-lever is locked in the closed positions by a pin 17.
Patent GB-194739-A (GB)
Title: Vehicle, more particularly a locomotive, with combustion engine and liquid driving gear
IPC: F16D33/06
Filed: 1921-09-17
Abstract: 194,739. Schneider, H. Sept. 17, 1921. Hydraulic transmission apparatus.-A vehicle drive, particularly for locomotives, comprises a mechanical transmission from a combustion motor to the primary part of an hydraulic gear, the secondary part of which is connected to the driving wheels, one of the shafts of the hydraulic gear enclosing the other shaft, so that the hydraulic gear is driven and drives on both sides of the vehicle. In one form, the motor drives a shaft 1, Fig. 1, carrying the primary part 2, 2<1>, the secondary part 4, 4' being mounted on a hollow shaft 3 carrying the driving wheels 3<11>, 3<111>, the shaft 3 being rotatable in spring-mounted bearings, in the frame R". In a modification, the driving wheels, 10, 10<1>, Fig. 2, are mounted on a shaft enclosed in a shaft carrying the primary part 11, 11<1>, driven by a pinion 7. In a further form a hollow secondary shaft carries the bearings for the primary shaft. The hydraulic gear is filled through a passage 20 in the inner shaft and passages 22, and is emptied by compressed air admitted through the same passages, the expelled liquid passing through pipes 23, a chamber 24 and a passage 26. When the vehicle runs downhill with the motor and primary part stopped, the secondary part may drive an air pump.
Patent GB-263936-A (GB)
Title: Improvements in or relating to machinery for sawing, tenoning, grooving, cutting or otherwise similarly treating wood or other material
IPC: B27B5/30
Filed: 1925-10-06
Abstract: 263,936. Jones, C. A. Oct. 6, 1925. Circular-saw machines.-A self-contained attachment for a saw-bench, for the purpose of cutting both sides of a tenon at once, or for like operations, comprises a saw e mounted in radius arms d adjusted by turn buckles p, the saw spindle f being carried by ball bearings l in housings j connected by bolts m. The housings are carried in collars g on the arms d and are adjusted longitudinally by set-screws o. One bearing l has axial play in its housing. Skew saws may be used, and a single belt drives both saw spindles.
Patent GB-259586-A (GB)
IPC: F16L37/52
Filed: 1926-10-06
Abstract: 259,586. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements Tecalemit). Oct. 6, 1925, [Convention date]. Couplings, disconnectible; hinge and swivelling joints; ball-and-socket joints.-In order to employ a rigid conduit f instead of a flexible one between a grease gun and the usual union c of the " hook-on " type, the union is connected to the conduit by a swivelling joint which comprises an extension i of the union turnably arranged on the inner end of a hollow cap j which is screwed into one arm of a forked member h attached to said conduit. Communication is established between the two parts of the joint by passages f<1>, f<2>, f<3>, while fluid-tightness between the contacting surfaces h, i of the joint is secured by means of a spring k, which is positioned within the cap and presses against a partition i<1> in the extension i, and a spring-pressed cup-leather m. The conduit f is normally closed by a spring- pressed ball valve x. In a modification, Fig. 3, the swivelling joint . consists of a member o screwed on to the conduit f and held in an extension of the union c by a ring p, fluidtightness being again secured by a cup-leather m. The rotary member o may be replaced by a ball member.
Patent GB-651371-A (GB)
Title: Fluid-operated hoist
IPC: B66D3/18
Filed: 1948-09-23
Abstract: 651,371. Pneumatic hoists. SMALLPIECE, C. D. P. Sept. 23, 1948, No. 24874. Addition to 590,403. [Class 78 (ii)] An improvement or modification of the parent Specification includes substantially similar coaxial cylinder portions A, B, having their remote ends closed, and being separated by a stationary member 11 carrying a stationary pulley set 20 ; a movable pulley set 25 within one cylinder portion ; a hoisting cable 30 passing round the pulley sets and having one end anchored (e.g. at 33) and the other hoisting end extending out from between the cylinder portions ; fluid-pressure-responsive plungers 27, 35 with the pulley sets positioned between them, the plungers being reciprocable in the respective cylinder portions and rigidly interconnected for movement in unison, the movable pulley set being mounted fast with the adjacent plunger, and controllable means for selectively supplying fluid under pressure to the remote ends of the cylinder portions and for regulating the discharge of fluid from the said remote ends whereby the relative displacement of the two pulley sets causes the raising or lowering of the said cable. Fig. 5.-Cylinders A and B are separated by block 11 and their remote ends are closed by plates 15 and 16, the whole being held together by connecting rods 17. Inside the cylinders work plungers 35 and 27, the plungers being rigidly connected by rods 37. Block 11 has a shaft 22 on which is journalled stationary pulley set 20, and plunger 27 similarly mounts pulley set 25. Hoist rope 30 enters the cylinders at 31 and passes between the two pulley sets and is anchored at 33. Compressed air is fed in through pipe 48 controlled by valve 47, the two pipes 45 and 46 leading to the ends of the two cylinders A and B. When compressed air is fed into cylinder A the hoist is raised and when compressed air is fed into cylinder B the hoist is lowered. Fig. 4.-Automatic valve 39 may be introduced into the end of either cylinder or of both. It includes disc 42 and washer 43 and is spring-influenced at 40 so that if subjected to high pressure it nearly but not quite closes the valve. Thus, if compressed air is fed into cylinder A and if the valve is inserted into plate 16 of cylinder B and if the compressed air pressure is excessive, then the automatic valve 39 is operated to nearly close the valve, thus checking excessive movement and preventing damage.
Patent GB-768271-A (GB)
Title: 4, 16-pregnadiene-3, 11, 20-trione and the production thereof
IPC: C07J75/00
Filed: 1954-08-26
Abstract: The invention comprises 4 : 16-pregnadiene-3 : 11 : 20-trione, and the preparation thereof by reacting a 4 : 17a -dihalo-11a -acyloxypregnane-3 : 20-dione with an organic hydrazine to form the 3-hydrazone of an 11a -acyloxy-17a -halo-4-pregnene-3 : 20-dione, converting this to the corresponding ketone, dehydrohalogenating this and hydrolysing the 11a -acyloxy group, and then oxidizing the resulting 11a -hydroxy-4 : 16-pregnadiene-3 : 20-dione.  The steps preceding the final oxidation are carried out in accordance with Specification 768,269, except that the conversion of the hydrazone is not limited to an exchange reaction with a ketone or aldehyde whilst the acyloxy group may be any carboxylic acyloxy group or a sulphonyloxy or phosphonyloxy group.  The oxidation may be effected by the Oppenauer method with an aluminium alcoholate and a ketone, by the action of chromic acid in a heterogeneous or homogeneous medium, or especially by means of a pyridinechromic anhydride complex, advantageously at 0-50 DEG  C. In examples: (1) 11a -acetoxy-4 : 16-pregnadiene-3 : 20-dione is prepared as described in Example 1 of Specification 768,269 and oxidized with a slurry of chromic anhydride and pyridine at 20-25 DEG  C.; (2) 11a -benzoyloxy-4 : 16-pregnadiene-3 : 20-dione is prepared as described in Example 5 of Specification 768,269 and oxidized with a solution of sodium dichromate in aqueous sulphuric acid.  Lists are given of additional intermediates, including compounds in which the 11a -substituent is benzene-, p-toluene-, p-chlorobenzene- or a -naphthalene - sulphonyloxy or benzenephosphonyloxy.  Specification 668,533 also is referred to.
Patent GB-534275-A (GB)
Title: Improved means for loading stretchers into ambulances
IPC: A61G3/00
Filed: 1939-08-30
Abstract: 534,275. Loading stretchers into ambulances. BONALLACK, W. Aug. 30, 1939, No. 24880. [Class 108 (i)] Stretcher-loading appliances of the type in which the receiving-platform is carried by a parallel-link motion mounted in the ambulance are fitted with one stop which allows the links to pass beyond the vertical and limits the upper or inward position of the platform, a second stop which fixes the lower or loading position, a coiled tension spring opposing the downward movement of the loaded platform and a locking- device engaging one of the links to maintain the platform in its upper position. As shown in Figs. 1 and 3, a platform 2 is moved on pivoted links 4, 5 from a receiving position outside the ambulance to a position inside in which it forms an upper floor or storey thus allowing a second stretcher to be placed under it. In the upper position the links 4 rest against the stop 17 while in the lowered position the links 5 rest against the rubber buffer 18a. For sitting patients, a portion of the platform 2 is hinged and adapted to fold down and form a back rest as shown at 14, Fig. 3. A compartment 27 in the base of the vehicle stores the collapsed stretchers 28 when not in use. In a modified form the links 4, 5 are unequal so that the platform 2 slopes downward in the loading position. The weight of the platform is balanced by coiled tension springs acting on the links.
Patent GB-322217-A (GB)
Title: Improvements in and relating to alloys
IPC: C22C1/02
Filed: 1928-08-30
Abstract: 322,217. Digby, W. P. Aug. 30, 1928. Alloys are prepared by first heating the constituents in a gas, coke, or oil fired crucible and at a later stage, preferably after about threefourths of the total alloying period, transferring the mixture to an induction furnace. Fluxes, such as the chlorides of magnesium and calcium, may be used if desired. The method relates particularly to the preparation of alloys containing iron and copper or iron, copper and nickel, and, if desired, chromium, and promotes the regular distribution of the constituents in the product. Copper-iron alloys with a high percentage of copper, e.g. 75 per cent, prepared by this method may be used in a Bessemer converter or open hearth furnace for the large scale production of alloys of copper and iron containing 10 per cent and upwards of copper; or copperchrome iron or steel may be made by adding such alloys to iron or steel and chromium in a gas, coke, or oil fired furnace.
Patent GB-1108993-A (GB)
Title: Hydroxy-containing polyethers
IPC: C08G65/22
Filed: 1965-06-14
Abstract: Polyethers containing hydroxyl groups statistically distributed over the molecule are prepared by polymerizing (1) an oxirane of the formula <FORM:1108993/C3/1> wherein R is -CH3, -C2H5, -n-C3H7 or -n-C4H9, and R1 and R2 are -H,  -CH3 or -C2H5, or (2) an oxirane of the formula <FORM:1108993/C3/2> wherein R3 is H, -CH3 or -C2H5 and R4 is -H, -CH3, -C2H5 -CH = CH2 or -CH2-CH = CH-CH3, in the presence of an anionic catalyst and hydrolysing the resulting polymer.  The above compounds may also be copolymerized with other oxiranes (many of which are specified) which do not contain acetal or ketal groups. The catalyst is suitably an organo-metal compound of aluminium or zinc which may have undergone a reaction with a dialkyl ether, a chelating agent, an alcohol or water.  The process may be carried out in substance, dispersion or solution at temperatures from - 90 DEG  to + 120 DEG  C.  The hydrolysis of the initial polymerization may be carried out in an aromatic hydrocarbon in the presence of an aqueous mineral acid at temperatures from 50 DEG  to 150 DEG  C. for 15-60 minutes.  This hydrolysis may also be carried out during the working up of the polymers containing acetal and/or ketal groups by addition of a mineral acid or an organic acid.  The polyhydroxy polyethers of the invention may be reacted with isocyanates, including polyisocyanates.  The examples describe the polymerization of propylene oxide with n-butyl glycidyl formal, propylene oxide with 2:4 - dioxospiro - (5,5) - epoxyundecane, propylene oxide with ethyl glycidyl ether, n-butyl glycidyl formal and ethyl glycidyl acetal, all in the presence of an aluminium triethyl catalyst and the hydrolysis of the products.
Patent GB-893411-A (GB)
Title: Improvements in or relating to systems for heating by circulation of liquid
Inventor: SAUNDERS JACK NORMAN
IPC: F24D3/04
Filed: 1957-08-08
Abstract: 893,411. Heating by circulation of fluids. WARMAC Ltd. Aug. 6, 1958 [Aug. 8, 1957], No. 24988/57. Addition to 814,729. Class 64(2) In a heating system in which liquid is circulated by a pump 11 through radiators 12 at a temperature above its normal boiling point, the system is maintained under pressure by apparatus similar to that described in the parent Specification but there is no separate high pressure vessel, the low pressure vessel 16 (to which excess liquid flows when the pressure rises and from which liquid is pumped back to the system when the pressure falls) being connected directly instead to the boiler 10 to maintain the water level 13 therein. The nitrogen bottles 15, also, are connected to the boiler and, regulated by a float-controlled valve 14, maintain a high pressure in the boiler. The control of liquid flow to and from the vessel 16 for compensating for volume change is similar to that described in the parent Specification, but the pumps 18 in the inlet line to the boiler from the vessel 16 are in parallel, one being a reserve while the other is controlled by a pressure-responsive device 22a in the outlet line from the boiler 10 to the vessel 16; further, the valve 21 in the outlet line is opened (for the outflow of excess water when the boiler water expands) by a device 22 responsive to the pressure in the outlet line and therefore to the pressure in the boiler. In the outlet line there is also a pressure-responsive device 33 which operates a switch (in a circuit, Fig. 6 (not shown), similar to that of the prior Specification for giving an alarm and controlling the boiler heating) to give an alarm if there is excessive loss of water or gas from the boiler. If there is insufficient space for the nitrogen in a given boiler to which the system is applied, a small cylinder may be connected above the boiler, a dome-may be mounted on the boiler top or the pipe 19 connecting the top and bottom of the boiler may have an enlarged portion, Figs. 3-5 (not shown). The Provisional Specification describes also the use of plates, in a given boiler, for restricting the space available for the nitrogen.
Patent GB-1190587-A (GB)
Title: Method and Apparatus for Reducing the Formation of Deposits During Polymerisation Processes.
IPC: C08F2/00
Filed: 1967-05-31
Abstract: 1,190,587. Surface polymerisation inhibitors. NORSK HYDRO-ELEKTRISK KVAELSTOFAKTIESELSKAB. 31 May, 1967 [15 June, 1966], No. 25177/67. Heading B1X. [Also in Division C3] Surfaces above the liquid phase, in apparatus for polymerisation processes using peroxide compounds as initiators incorporate a peroxide-decomposing substance to prevent deposits of the polymer resulting from condensation of the monomer and of the peroxide initiator. Preferably, the surfaces are coated with metallic platinum, in which case it is necessary to wet the surfaces prior to the polymerisation operation, or with manganese dioxide. The apparatus may be an enamelled autoclave with a water jacket and a reflex device of acid-resistant Cr-Ni-steel.
Patent GB-795636-A (GB)
Title: Method and apparatus for double decomposition
IPC: C25B7/00
Filed: 1956-08-17
Abstract: 795,636. Electrodialysis. NEDERLANDSE ORGANISATIE VOOR TOEGEPASTNATUURWETSCHAPPELIJKE ONDERZOEK TEN BEHOENE VAN NIJVERHEID, HANDEL EN VERKEER. Aug. 17, 1956 [Aug. 24, 1955], No. 25257/56. Class 41. An electrodialytic apparatus for the double decomposition of two ionizable compounds RX PY comprises a series of spaced, alternate cationic and anionic permselective membranes 1 ... 8 arranged between a cathode 16 and an anode 17 to define a series of chambers 9 ... 15, a manifold 20 for delivering an aqueous solution of RX to the first chamber 9 (counting from the cathode 16) and every fourth chamber 13 ... thereafter, a manifold 19 for delivering an aqueous solution of PY to the third chamber 11 and every fourth chamber 15 ... thereafter, a manifold 18 for delivering water to alternate chambers 10, 12 ... and discharge manifolds 21 ... 23 communicating with each chamber. Cations R+ and anions Y- move into chambers 12 and every fourth chamber and cations P+ and anions X- into chambers 10, 14 ... whereby an aqueous solution of RY is discharged at 23 and an aqueous solution of PX at 22. The following reactions are mentioned: Flow through the chambers may be concurrent or countercurrent and one or more of the solutions may be recycled to the same or another apparatus. The anode and cathode chambers 29, 28 have connections 24 ... 27 for a rinsing liquid, e.g. water, and the outflow of one of the chambers 28, 29 may be the inflow for the other. In an example in which NaCl and Ca(OH) 2  were the compounds, 46 chambers were employed at a voltage of 30 to 35 and a current density of 10 mA. per square cm., water being supplied to and NaOH solution withdrawn from the apparatus at 2.85 litres an hour. The membranes were separated by corrugated, perforated rigid sheets of polyvinyl chloride of the kind described in Specifications 736,888.
Patent GB-1098470-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B28/04
Filed: 1966-06-07
Abstract: 1,098,470. Rolling. M. G. SENDZIMIK. June 7, 1966, No. 25334/66. Heading B3M. A rolling mill includes pairs of working rolls 2, 2<SP>1</SP>; 3, 3<SP>1</SP> &c. of different sizes, positioned around backing rolls 4 and 4<SP>1</SP>, each pair being selectively movable to a working position between the backing rolls. The working rolls are supported at their ends by chocks 7, Fig. 2, positioned within cages 6 encircling the backing roll journals and movable independently of the backing rolls. Each cage is indexable by means of a gear 8 or 8<SP>1</SP> attached to a shaft which is rotated by means of further gears 10, 10<SP>1</SP>, while clutches 12, 100 and 100<SP>1</SP> permit individual or common adjustment of the cages using one or both driving shafts 107, 107<SP>1</SP>. Locks 102 or selsyns may be used to control the indexing. The pair of working rolls is frictionally driven from the backing rolls, the remaining working rolls which are out of use being spring loaded out of contact with the backing rolls. Alternatively, if pre-rotation of the working rolls is required, the rolls are normally spring pressed against the backing rolls and are releasable by cams or fluid pressure. The working rolls are readily releasable from their chocks, and can additionally be ground or polished in position while a further pair of rolls is in operation. Rolls of tungsten carbide can be employed, the length of the rolls being appropriate to the width of stock being rolled. Lateral binding of the work rolls in use can be minimized by using bearing bars (Fig. 4, not shown) between adjacent rolls, cylinders or other fluid, mechanical, or electrical devices urging the bars apart. Idler rolls may alternatively be located between adjacent rolls 56, 60. In a further mill, Fig. 6, alternative clusters of rolls are mounted in an indexable rigid beam 24, a driving roll 104, or a further rigid beam being positioned beneath the workpiece 5. A number of spaced hydraulic cylinders permit adjustment of the crown of the work roll or rolls. In place of the conventional stands having an hydraulic or mechanical screwdown, a prestressed stand may be employed, the roll gap adjustment being effected by screwed wedges 42, 43, Fig. 10, by interchangeable shims 48, or by the prestressing cylinders 31, 41. The cylinders 31 urge the lower chocks 37 upwards, while cylinder 41 urges the chocks 36 downwardly.
Patent GB-621511-A (GB)
Title: Improvements relating to two-conductor signal transmission circuits
IPC: H04H20/77
Filed: 1946-08-26
Abstract: 621,511. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., and MOIR, J. Aug. 26, 1946, No. 25391. [Class 38 (ii)] [Also in Group XXXIX] A transformer used in an overhead transmission line system [see Group XXXIX], comprises a centre-tapped primary winding having two axially-spaced sections 9, 10, connected in series, and a centre-tapped secondary winding 13, in which the turns 16 on one side of the centre tap 17 are interwound with the turns 18 on the other side of the centre tap, the secondary winding being axially movable with respect to the primary winding.
Patent GB-1305637-A (GB)
IPC: B24B27/00
Filed: 1970-05-27
Abstract: 1305637 Feeding spoons on to endless conveyers MISSILES S A 27 May 1970 [30 May 1969] 25444/70 Headings B8A and B8S [Also in Division B3] An apparatus for polishing an article 1 comprises means 3 for carrying the article along a predetermined path to means 4, 4a for polishing the article, the polishing means being movable in a direction generally laterally of the path, the movement corresponding to the shape of the article to be polished. A plurality of articles, such as spoons, are fed one at a time from a housing 2 to the means 3 consisting of a chain and are gripped thereon as they are conveyed between pairs of brushing or polishing rollers 4, 4a which are movable laterally and vertically of the path of the articles under the control of a profile jig, the finished articles being discharged on to a conveyer 7. The housing 2 has end walls formed with grooves 10, 11, Fig. 5, for receiving the ends of a stack of spoons which rest on a shoulder (12, Fig. 4, not shown) and stops 13 and at one end abut a stop means 20. A thrust member 19 and the stop means 20 are moved in unison by a pneumatically operated device 15 so that the lowermost spoon is free of the shoulder 12 and stops 13, the remaining spoons being held against movement by members 14, and is received between clamping lugs 32, Fig. 6, or in an alternative arrangement, beneath clamping arms 33, on links 30 of the chain 3 adjacent a sprocket 25 so that, when the plates are in alignment between the sprockets 25, the spoons are gripped by the lugs or arms. Two housings 2 may be provided so that each pair of lugs grips two spoons which are thus carried between the brushing or polishing rollers 4, 4a which are moved laterally of the direction of movement of the spoons and vertically by the profile jigs to brush and polish the spoons. At the discharge end of the apparatus, the spoons are released by the lugs or arms and received between co-operating parts of belts 40, 41, Fig. 7, and carried to the discharge conveyer 7.