baber/WOPTO huggingface dataset:
Patent GB-731955-A (GB)
Title: 2-thiophene aldehyde derivatives
IPC: C07D333/44
Filed: 1952-10-17
Abstract: The invention comprises a thiophenaldehyde diester having the formula <FORM:0731955/IV (b)/1> in which R is an alkyl group containing 1 to 3 carbon atoms and R1 is a hydrogen atom or a nitro group.  Such a compound is obtained by treating 2-thiophenealdehyde with an acyl anhydride having from 4 to 8 carbon atoms in the molecule in the presence of a Lewis acid and, when the 5-nitro compound is desired, adding the resulting diester in excess of acyl anhydride to nitrating acid whilst maintaining the temperature below 20 DEG  C.  As Lewis acids (defined as those having a molecule capable of receiving an electron-pair into the shell of one of its atoms) are mentioned sulphuric acid, phosphorus pentoxide, stannous chloride, zinc chloride, boron trifluoride, cupric sulphate, ferric chloride and phosphorus trichloride.  A solution of fuming nitric acid in glacial acetic acid may be used in the nitration.  In examples (1) 2-thiophenedialdehyde diacetate is prepared by reacting 2-thiophenealdehyde with acetic anhydride in the presence of stannous chloride dihydrate, the temperature being allowed to rise to 22 DEG C.; (2) the product of (1) is nitrated at 10 DEG  to 30 DEG  C. with fuming nitric acid in glacial acetic acid to give 5-nitro-2-thiophenealdehyde diacetate.  The same procedure is applicable to the preparation of the dipropionates and dibutyrates.
Patent GB-486640-A (GB)
Title: Improvements in three position electric switches
IPC: H01H23/14
Filed: 1937-09-28
Abstract: 486,640. Snap - action switches. ARROW - HART & HEGEMAN ELECTRIC CO. Sept. 28, 1937, No. 26246. Convention date, Oct. 21, 1936. [Class 38 (v)] A three-position tumbler switch comprises a dolly 40 which, by means of teeth, drives a cam plate 52 pivoted on a spindle 54 on which is also pivoted a switching member 62 formed of two plates joined by a bracket 68. Transmission springs 58 are connected between a strut 56 on cam plate 52 and lugs 60 on member 62. A pin 32 passes through slots 76 in member 62 and is pressed upwards by a spring 78. The pin 32 also passes through latching slots 80 in fixed frame plates 33, 34 and the ends engage in slots in insulating plates 28, 30 carrying contact members 24, 26 adapted to be slid from a central off position into and out of engagement with pairs of contacts 18, 22, and 12, 20 of which there are two pairs at each end of the base. The slots 80 are shaped as shown in Fig. 6 in which the parts are shown in one of the on positions, the pin 32 being spring- pressed into engagement with a recess 80b. If now the dolly is moved so as to move the cam plate 52 clockwise, the springs 58 are strained until the cam plate moves pin 82 out of recess 80b allowing member 62 to move rapidly to the central off position. The pin 32 comes to rest against a projection 80d as shown at X, Fig. (i, and is prevented from rising by the cam plate 52, further movement of the dolly merely resulting in straining springs 58. If, however, the dolly is released so as to move to its central position, a recess 52d in the cam plate allows the pin 32 to rise into a recess 80c and the switch can then be moved by the dolly into the other on position. In a modification, the projection 80d is carried on a separate plate having a slight pivotal movement so that the position in which member 62 is arrested is truly central for both directions of movement. In this case the central position is also a contact-making position.
Patent GB-804190-A (GB)
Title: A method of increasing the output of rolling mills
IPC: B21B38/00
Filed: 1956-08-28
Abstract: 804,190. X-ray method of fault finding. PHOENIX-RHEINROHR AKTIENGESELLSCHAFT VEREINIGTE HUTTEN-UND ROHRENWERKE. Aug. 28. 1956 [Aug. 29, 1955], No. 26292/56. Class 98(1) In a method of increasing the output of rolling mills, the metal piece being rolled is irradiated while still hot with high energy rays and an image of the faulty section is made visible and the faulty portions of the piece are cut off. The picture so obtained is viewed by means of mirrors or by a television system in which case an observer may adjust a pointer on the screen at the position of the faulty part, the position being transmitted by electrical means which effects a mark at the corresponding point on the metal piece to indicate where the cut is to be made. The high energy rays may be produced by a Van der Graff X-ray generator, Betatron, or a linear accelerator.
Patent GB-1068629-A (GB)
Title: Side-and hopper hung windows
IPC: E05D15/52
Filed: 1964-06-25
Abstract: 1,068,629. Pivoted windows. WILH FRANK G.m.b.H. June 25, 1964 [June 26, 1963], No. 26292/64. Headings E2F and E2M. A side and hopper hung window is fitted with a handle 2, rotatable through 180‹, which operates by means of connecting rods 3, 6 and 8 a latch 4, a horizontal hinge pin 9 and vertical hinge pins 10 and 11. On rotating the handle 2 anticlockwise, firstly through an angle slightly less than 90 degress the latch 4 is released. secondly through a small angle to just over 90‹ there is no appreciable change and finally through a further angle equal to the first to a total of 180‹ the horizontal pin 9 is engaged and the vertical hinge pins 10 and 11 disengaged.
Patent GB-766630-A (GB)
Title: Prime movers
Inventor: CORRICK DENIS WILLIAM
IPC: B64D27/02
Filed: 1950-10-27
Abstract: 766,630. Propelling aircraft. BRISTOL AEROPLANE CO., Ltd. Oct. 29, 1951 [Oct. 27, 1950], No. 26325/50. Class 4. [Also in Groups XXI and XXV] In a vehicle carrying an external load, the load is automatically jettisonable by rearward axial movement relative to the vehicle. As shown, Figure 1, the aircraft body 10 carries the four booster units 11 by the front and rear supports 12, 13. Upon exhaustion of the fuel in units 11 a rearward thrust is exerted upon the units, due to the forward motion of the aircraft in the direction of the arrow 14, which permits the release of fastenings 12 under the outward thrust of fin 16. The outward motion of the nose 15 unlocks the fastening 13 which is released by the thrust from fin 17. The toe 18 of the support 12, Fig. 2, engages the T-shaped slot 20, 21 in the aircraft body. The support 13, Fig. 5, carries a pin 31 which engages the shoulder 40, and is extended into a rounded extension 32 which fits into slot 34, 38. The rear end of the booster 11 carries the pin 29 which is supported in the bush 30 at the lower end of 13. At take-off, the initial booster thrust moves the booster a short distance forward relative to the aircraft and the pin 42 is sheared, thereby permitting, at the jettison stage, a free rearward movement of 11. The booster units spaced round the body are locked together to effect the simultaneous jettisoning of all boosters.
Patent GB-338965-A (GB)
Title: Improvements in or relating to linoleum and the manufacture thereof
IPC: D06N1/00
Filed: 1929-08-29
Abstract: 338,965. Armstrong Cork Co., (Assignees of Claxton, E.). Oct. 15, 1928, [Convention date]. Grant of Patent refused. Single coatings.-In making linoleum, the oxidizable components of a linoleum cement containing a siccative oil are first substantially completely oxidized, and a coagulant is added to the cement. The oxidation is preferably carried out in the presence of an anti-coagulant as described in Specification 305,656, [Class 91, Oils &c.]. The anti-coagulant is preferably active at normal temperatures, and the coagulant inactive at normal temperatures. In carrying out the process, a charge consisting of about three parts of linseed oil and one part of rosin, together with suitable driers such as litharge or manganese resinates, is oxidized in the usual mechanical beater, in which the temperature is kept at 180 to 200‹ F. During oxidation, the coagulation of the oil is delayed by the rosin until all the oxidizable constituents of the oil have been oxidized. Complete coagulation is not allowed to occur at this stage. The coagulant is preferably added to the cement before the latter is taken from the oxidizer. The preferred coagulant is boric acid, which is added to the amount of about 1 per cent by weight of the oil content. After a short period of mixing, the cement is removed and mixed with fillers such as ground cork or wood flour, mineral fillers, and pigments. The linoleum is then made in the usual manner, and matured in stoves heated to about 180‹ F. The presence of the coagulant reduces the time required for maturing by about 40 per cent of that required when a coagulant is not used. Apart from boric acid, other coagulants which may be used are : nitrogen-containing derivatives of aromatic sulphonic acids, amides of aliphatic acids, aromatic acid peroxides, nitrogencontaining derivatives of furfural, aromatic amino cumpounds such as benzidine, meta-phenylenediamine, and aniline, nitrogen-containing derivatives of aliphatic aldehydes, nitrogen-containing derivatives of carbonic acid, such as urea and its derivatives, heterocyclic nitrogen-containing compounds, organic or inorganic salts of boric acid, inorganic basic substances such as zinc oxide, ammonium carbonate, sodium acetate and magnesia, inorganic chlorides, and weak inorganic acids such as arsenious acid. The coagulant is preferably anti-oxidant or neutral in its action upon any unoxidized part of the oil. The oil used may be menhaden or fish oil, China wood oil, or soya bean oil, instead of linseed oil. In place of rosin, Kauri gum, ester gum, abietic acid and its esters, or pimaric acid may be used.
Patent GB-513294-A (GB)
Title: Improvements in merchandise conveying and stacking means
IPC: B66F9/06
Filed: 1938-04-05
Abstract: 513,294. Portable platform hoists ; cranes. OGILIVIE, B. C. H. April 5, 1938, No. 26480. Divided out of 513,280. [Classes 78 (iii) and 78 (iv)] A self-propelled truck crane &c. comprises a jib 19 pivoted at 20 to a truck 10 the wheels 11 of which are driven by electric motors 12. The jib 19 is raised and lowered by a cable 23 winding round a drum driven by an electric motor. A telescopic extension 21 of the jib 19 has a yoked end carrying a sheave 22 over which passes a cable 24 wound on an electrically driven drum 15. The cable 24 carries a hook 25 which may be coupled directly to a load or to a shank 28 on a carriage 29 which slides along a detachable guide rail 26 pinned to the extension 21 and rigidly located relative to the jib by links 32. The carriage 29 carries forks 30 which can be tipped to take under a load by lowering the jib about its pivot 20. Specification 513,280 is referred to.
Patent GB-470674-A (GB)
Title: Improvements in and relating to wrappings for commodities
IPC: B65D75/26
Filed: 1936-09-30
Abstract: 470,674. Coated fabrics; packing. FORBES LITHOGRAPH MANUFACTURING CO. Sept. 30, 1936, No. 26530. Convention date, Oct. 11, 1935. [Class 140] [Also in Group XVII] A wrapping for commodities such as soap consists of transparent cellulosic material 7, such as that known under the Registered Trade Mark " Cellophane " decorated on its inner face with ink or paint 9 to simulate a printed or pictorial inner wrapping, the decoration having a covering of thermoplastic sealing material such as paraffin wax at least at the location of the joints of the completed wrapping to seal the joints by adhering to the decorated surface and the outer face of the cellulosic sheet. The thermoplastic material may be a coating on the decorated sheet or carried on a separate sheet, e.g. of waxed paper 13. The cellulosic sheet may have an exterior moistureproof coating of nitro-cellulose lacquer. The encircling band of thin card commonly used in packaging soap may be omitted and the central portion of the waxed paper sheet made heavier, for example, by pleating to form a treble thickness, is shown in the Figure.
Patent GB-1235174-A (GB)
Title: Pyran derivatives
Inventor: BOWDEN ROY DENNIS
IPC: C07D309/18
Filed: 1968-06-04
Abstract: 1,235,174. Pyran derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 May, 1969 [4 June, 1968], No. 26560/68. Heading C2C. The invention comprises 2,2<SP>1</SP>- and 2,41-bis- 5,6 - dihydro - (2H) - pyranyls, 2 - (3,4 - dihydro - (2H) - pyran - 3 - yl) - 5,6 - dihydro- (2H)-pyrans and 2,2<SP>1</SP>- and 2,3<SP>1</SP>-bistetrahydropyranyls in which the pyranyl nuclei are unsubstituted or one or both is substituted by an alkyl or an alkoxy group. The bis-dihydropyranyls may be prepared by treating a dihydropyran in the presence of a hydrogen acceptor with actinic radiation. Suitable hydrogen acceptors are oxygen, sulphur, selenium and ketones especially acetone, tetrahydro-pyran-4- one and benzophenone. The bis-dihydropyranyls may be hydrogenated to give the corresponding bis-tetrahydropyranyls.
Patent GB-461606-A (GB)
Title: Automatic cut off device for charging containers
IPC: B60S5/04
Filed: 1936-09-30
Abstract: 461,606. Valves. MICHELIN & CIE. Sept. 30, 1936, No. 26561. Convention date, Nov. 6, 1935. Addition to 445,643. [Class 135] A valve device for filling containers with fluid to a predetermined pressure and adapted to close automatically when that pressure is reached has the main valve in the form of a resilient sleeve I encircling a tubular member C divided by a partition into two chambers D, E, each connected to a port under the sleeve. The chamber E is connected to the pressure inlet X which is fitted with a throttling disc H while the chamber D is connected to the outlet. A cover J is screwed onto the member C so as to engage a washer J<1> and form a gas-tight chamber C<1> outside the resilient sleeve which chamber communicates with the inlet through a central chamber controlled by a spring loaded valve L<1>. This valve is carried by a rubber cup backed by a piston N slidably mounted in a ported sleeve screwed into the central bore. When pressure applied to the inlet X exceeds a predetermined minimum the sleeve is distended to permit fluid to pass around the member C between the ports E<1> D<1> and thence to the outlet. When the pressure in the system reaches a desired value the valve L<1> lifts to admit inlet pressure to the chamber outside the sleeve which consequently closes on its seat by its inherent resilience to interrupt the flow. A further rubber sleeve valve T is arranged in a chamber connecting the inlet with the chamber C<1> so that when the chamber E is connected to atmosphere the chamber C<1> is vented to put the valve in condition for a fresh service. The top of the casing J is fitted with a pressure gauge u which may be of the type described in Specification 446,372, [Group XIX]. A sleeve valve similar to the main valve may replace the spring loaded valve L<1>.
Patent GB-499904-A (GB)
Title: Improvements in apparatus for heating clamps for use in the production of permanent hair waves
IPC: A45D4/16
Filed: 1937-10-01
Abstract: 499,904. Hair - waving appliances. SCHULZ, (nÚe STOLLENWERCK), H. M. Oct. 1, 1937, Nos. 26575 and 26576. Convention dates, Nov. 13, 1936 and March 8, 1937. [Class 131] [Also in Group XI] A device for preheating clamps for use in permanent hair waving comprises a number of heat-transmitting rods on which the clamps are placed prior to their application to the hair. The rods c project perpendicularly from heatconducting casing g<1> and may be formed hollow or solid. The heat may be supplied by gas burners b or other means, and the casing g<1> may be mounted so as to turn on a stand g housing a fuel container i. Fig. 6 shows a clamp d placed on a hollow rod c secured over a burner hole e<1>. Baffles and guides may be arranged in the hollow rods as shown in Fig. 9. Fig. 11 shows a hollow rod l heated by gases from a burner k and by air flowing through a coil n heated by the burner and discharging through a tube u into the rod. Automatic temperature control may be used.
Patent GB-1286776-A (GB)
Title: Bladed rotors for turbomachines
Inventor: SPEARS ESTEN WARFIELD JR
IPC: F01D5/30
Filed: 1971-04-19
Abstract: 1286776 Turbomachine rotor blade fixing GENERAL MOTORS CORP 19 April 1971 [21 July 1970] 26578/71 Heading FIT The roots 8 of a compressor blades 7 are mounted in generally axially extending slots 10 in a rotor rim 4 and retained against movement out of the slots in a forward direction by means of retainer plates 12 mounted in an annular groove 14 defined between radially outer and inner annular flanges 15, 16 on the forward face of rim 4. Movement of each blade in a rearward direction is prevented by a lug 11 on each root 8 abutting a face of rim 4. The rotor is assembled by inserting all the roots 8 in their respective slots 10 and then inserting a retaining plate 12 so that its inner edge engages behind flange 16 of groove 14 and its fingers 20, 21 about adjacent roots 8. In this position, Fig. 3 (not shown), tab 23 is disposed against the front of flange 15. Plate 12 is then slid circumferentially to the left, as shown in Fig. 2, until fingers 20, 21 engage behind flange 15 and tab 23 is disposed in front of a root 8. The plate 12 is locked in position by bending tab 23 inwards into a recess 18 in root 8. The remaining plates 12 are then inserted one by one, the tab 26 of each plate abutting the end 28 of the adjacent plate.
Patent GB-1308113-A (GB)
Title: Cathode-ray tube
IPC: H01J29/56
Filed: 1971-04-19
Abstract: 1308113 Cathode ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [11 April 1970] 26608/71 Heading H1D An electron gun in a display tube comprising a cathode 6, a first control grid 7, a second accelerating grid 8 and a third grid 9, is characterized by the provision of an astigmatic lens element. In Fig. 2 the lens element comprises two spaced-apart semi-circular plates 16 and 17 on the plate part 13 of the second grid on either side of a circular aperture 14. At low beam currents the beam spot on the screen is thereby elongated vertically so that the line structure is less apparent; at high beam currents the spot is circular, the larger spot being sufficient to mask the line structure and any elongation would reduce definition. In a modification, Fig. 6 (not shown), the plate 13 is covered with a circular plate provided with a central rectangular aperture. In another arrangement, Fig. 7 (not shown), the plate 13 is provided with a rectangular bulge extending towards the first grid. Other arrangements mentioned are the provision of non-circular beam apertures in either the second or third grids, or the provision of slots in cylindrical parts of the second or third grids surrounded by electrodes at different potentials. In a shadow mask-type colour display tube Moire patterns may be prevented in this way.
Patent GB-1031064-A (GB)
Title: A process for packing tows of continuous filaments
IPC: B65H54/76
Filed: 1963-07-04
Abstract: 1,031,064. Packaging yarn filaments. SPINNFASER A.G. July 4, 1963 [July 4, 1962], No. 26623/63. Heading B8C. [Also in Division D1] Tows of continuous fibres are packaged prior to further processing by being formed into transverse layers in and fed through a tube 2 and forced into a flexible sleeve 5 passed over the tube end, the sleeve when filled being removed, the tow cut and the ends secured against fraying and the sleeve then being sealed. The density of the tow is regulated by means 4 (not detailed). The sleeve is transparent and may be of any required length.
Patent GB-691961-A (GB)
Title: Improvements in or relating to electric heating apparatus for typesetting and composing machines and the like
IPC: B41B11/76
Filed: 1947-10-03
Abstract: 691,961. Casting composite articles. BADER, K. E. Sept. 30, 1948 [Oct. 3, 1947; April 19, 1948], Nos. 26655/47 and 10714/48. Class 83 (i). [Also in Groups XI and XXXVII] A heating unit for the mouthpiece of a typesetting and composing machine is produced by bending a magnesium - oxide - insulated heat-resisting steel clad rodlike element 5 to the required shape, sand-blasting the element and fitting it with aluminium rings 9 to locate the element in a mould and then by casting, embedding the element in aluminium or an aluminium alloy, preferably an aluminium-silicon alloy. The rings 9 are initially slightly larger than the thickness of the final cast heating unit so that they hold the element firmly in the mould. They eventually fuse into the casting. To facilitate the bending of the heating unit into its final shape slots 7 may be provided.
Patent GB-735276-A (GB)
Title: Improvements in or relating to meters for flowable materials
IPC: G01F3/08
Filed: 1953-09-28
Abstract: 735,276. Rotary meters. HYDRAULIC RECORDING INSTRUMENTS, Ltd., and BATTEY, S. D. July 22,1954 [Sept. 28, 1953], No. 26661/53. Class 110 (2). Relates to meters for measuring viscous materials such as glucose, bitumen, varnish, fuel oil and fats circulated through closed circuits which include heating means to maintain the materials at predetermined temperatures and so keep them in a fluid state. According to the invention, a meter is provided comprising registering mechanism and a housing 1 within which is a measuring chamber 7 co-operating with the registering mechanism 10, the housing having an inlet port and an outlet port for connection in the closed circuit, a delivery outlet 15 from the measuring chamber being closed, when not in use, by a stop-valve whereby the fluid circulates past the measuring, chamber to maintain the temperature thereof the same as that of the material and so prevent clogging of the meter. The housing 1 is provided with a through passage with flanges 3, 4 at the ends for connection to the fluid circuit. The measuring chamber 7 contains a gyratory eccentric piston 8 connected by a gland shaft 9 to the registering mechanism 10, as described in Specification 627,505, the mains inlet and outlet being coaxial, and the piston coaxial with the shaft 9 so that fluid entering the measuring chamber through the inlet 12, Fig. 3, rotates the piston and passes out of the measuring chamber through outlet 13. A passage 14 connects the outlet 13 to the delivery outlet 15 screw-threaded for connection to the stop-valve (not shown), the axis of the outlet being normal to the through passage. Specifications 627,505, [Group XXIX], and 629,331 are referred to.
Patent GB-685338-A (GB)
Title: Method of and apparatus for adding material to molten metals
Inventor: MOORE WILLIAM HENRY
IPC: C21C1/10
Filed: 1950-11-02
Abstract: 685,338. Addition of materials to molten metals; mixing appliances. MEEHANITE METAL CORPORATION. Nov. 2, 1950. No. 26798/50. Classes 72, 82(i) and 86 Apparatus for introducing additives to molten metal after the metal is removed from a furnace comprises a longitudinal trough, means for providing introduction of metal into the trough, means for providing controlled continual escape of metal from the trough, thereby maintaining a constant predetermined depth of metal in the trough, means for adding material at a given station to a stream of molten metal passing through the trough and means for agitating the stream at a downstream point from the said station. As shown in Fig. 3, molten metal from the base of a cupola furnace 10 flows along a sloping trough 11 to trough 12 at the downstream end of which an adjustable plug valve 19 controls the rate of outflow of metal through outlet 28. Within a shield 13 is provided a funnel 25 which is fed with the additive material by pipe 26. Stirrer 17, preferably having opening 18 therethrough, is situated between the funnel and the plug valve. The stirrer is driven through a gearbox 24 and motor 23 mounted on platform 14 which also supports a pneumatic cylinder 20 by which the plug valve is operated. Figure 2 shows the discharge end of the trough 12 at which an overflow weir 29 is mounted, molten metal with any slag or dross passing over the weir to box 30 and outlet 31, the rate of discharge over the weir being controlled by the setting of plug valve 19. Use of the apparatus for adding refining materials such as magnesium to cast iron, particularly for the production of cast iron containing nodular graphite, is described.
Patent GB-283828-A (GB)
Title: Improvements in egg beaters
IPC: A47J43/10
Filed: 1927-10-11
Abstract: 283,828. Goundry, W. J. Oct. 11, 1927. Egg - beaters. - An egg-beater rotated by a screw or rolling-stick, comprises a sheet-steel member having three arms, each with two perforations A - - F through which a continuous thread is passed, as shown.