baber/WOPTO huggingface dataset:
Patent GB-661962-A (GB)
Title: Improvements in or relating to snap-acting electric switching mechanisms and motor control apparatus incorporating such mechanism
IPC: H01H37/04
Filed: 1949-01-25
Abstract: 661,962. Thermal switches; electromagnetic switches; control of A.C. motors. STEVENS, A. H. (Ranco, Inc.). Jan. 25, 1949. No. 2006/49. Classes 38 (iii) and 38 (v). [Also in Group XXXV] A switch intended for starting a split-phase motor comprises a thermal overload cut-out and a starting relay mounted together in a housing adjacent the motor frame. The switch is supported on a frame 40 secured to a small raised pad 60 in a plastic housing 20 whereby it is unaffected by temperature-produced strains in the housing which is bolted at 25, 26 to a steel cup 31 welded to the motor frame. The starting relay comprises a coil 42 welded at one end to the frame 40 and having a core 80 co-operating with a slot 77 in the off-set curved part 74 of an armature 72 welded at 73 to a berrylliumcopper contact-carrying spring 65 also rivetted to the frame 40. The spring 65 is offset at 68 and extends through the offset armature part 74. The overload cut-out comprises a series bimetal strip 100 welded at one end to the frame 40 and at the other to the central part of a T-shaped stainless steel toggle arm 102 to which are rivetted the ends of the limbs 106, 107 of a contact-carrying toggle spring 105 whose centre limb 111 engages a notch 112 in the toggle arm 102. The companion contact 136 supported by a screw 135 is insulatedly mounted in an upstanding lug 55 of the frame 40. The temperature necessary to open the cut-out is adjustable by the screw 135 and the closing temperature is adjustable by a screw 53. The relay contacts 90, 96, control the motor starting winding 93 and the coil 42 is connected in the main winding circuit 87 so that on closure of a main switch 145, thermally or manually, providing the cut-out contacts 113, 136 are closed, a current flows through the main winding and at a selected value closes the relay contacts 70, 96 and current flows through the starting winding 93 and the motor starts, the reduced current then permitting contact 70 to re-open. Excessive current or undue temperature rise of the motor opens the contacts 113, 136 through flexure of the bimetal strip 100. To prevent rapid cycling of the contacts 113, 136 and consequent damage to starting capacitors which may be employed, a heating coil in series with the starting winding may be mounted in the housing 20 (Fig. 6 not shown), whereby on repeated starting of the motor the housing is heated and the "open" time of the contacts 113, 136, increased. The tongue 47 struck-out of the frame 40 may carry a rubber buffer co-operating with an extra adjusting screw on the toggle arm 102, Fig. 8 (not shown), the arrangement giving very fine control of the temperature necessary to open the contact 113.
Patent GB-711479-A (GB)
Title: Improvements relating to the actuation of electromagnetic relay means, particularly for the control of cinematograph projection
Inventor: FOY WILLIAM JAMES
IPC: G03B21/18
Filed: 1951-01-26
Abstract: 711,479. Kinematograph apparatus. ESSOLDO CIRCUIT (CONTROL), Ltd. Dec. 28, 1951 [Jan. 26, 1951; Sept 4, 1951], Nos. 2106/51 and 20898/51. Class 97(1) [Also in Group XVI] Two spaced members engaging a running film serve as or carry contacts connected in the grid circuit of a thermionic valve responsive to changes in potential between the contacts resulting from a reduction, from normal, of the speed of the film or from the running out of the film. As shown, an electrostatic potential difference is generated between contacts Y1, Y2 running on the film margin and bridged by a resistance R3 and is applied to a capacitor C2 to induce, across a resistance R4, an opposite potential difference which is applied through a resistance R5 to the grid of a thyratron 5. One bf the contacts may be part of the projector. If the film slows down or runs out the thyratron strikes and discharges a capacitor Cl through the coil of a relay 7 and a resistance R2. The discharge circuit is only completed, manually or automatically, through switch contacts 8. When normal running speed is reached. The capacitor Cl is charged through a resistance R1. Additional contacts 9<SP>1</SP>, 101 may be normally separated by the film and closed when it runs out to strike the thyratron instantaneously without delay caused by the capacitor C2. Rollers on spring loaded arms may engage the film and themselves form the contacts 9<SP>1</SP>, 101, or the contacts may be carried on the arms. In a modification only the contacts 91, 101 (without Y1, Y2) are provided, the resistance R4 then being connected to a grid bias supply, no switch being required at 8. This form is only sensitive to the film running out. The relay contacts P1 are used to stop the projector, which may be the outgoing projector in a change-over effected for example by the device described in Specification 711,480. The device above described may be combined with a device having two film contacting members adapted to be bridged by a conductive trace on the film to produce a signal for giving warning of a change-over or initiating a changeover automatically. One film contacting member may be common to both devices.
Patent GB-288748-A (GB)
Title: Improvements in tyre valves
IPC: F16K15/20
Filed: 1927-01-25
Abstract: 288,748. Cooley, J. W. Jan. 25, 1927. Tyre valves.-A tyre valve has a hollow valve member and spindle provided with outlet apertures in the valve member which co-operates with an indiarubber or like seating. The replaceable unit comprises a tubular member c<3> provided with a tapered bore and a recessed part to provide a shoulder to receive the indiarubber seating c<7> in which is mounted the hollow conical valve member c<1> having ports c<2>, the valve being normally held to its seat by a spring c<5> arranged between the top of the member c<3> and a collar c<6> fixed to the spindle c. The member c<3> fits in the lower end of an inner casing B' screwed at B<1> to the outer casing which is provided with a shoulder to receive a washer A<3> against which the lower ends of the members c<3> and B<5> bear. The upper part of the member B' is provided with a threaded nipple to receive the pump connection and is formed with a square socket to receive a manipulating key D<2> on the dust cap D which also has a pin D<1> for unseating the valve.
Patent GB-117405-A (GB)
Title: Improvements in or relating to Indicating or Recording Means and the like for use in the Rationing of Foods and the like.
Inventor: ROBERTS THOMAS MORRIS
IPC: G09D1/00
Filed: 1918-02-06
Abstract: 117,405. Roberts, T. M. Feb. 6, 1918. Displaying information.-Apparatus for indicating and recording in connexion with the rationing of foods consists of a board bearing the names and other information relating to customers &c. and also with removable indicators for showing the quantities supplied or due. In the construction shown, the board or card A is ruled with vertical and horizontal columns in which names &c. are written. The removable means consist of the tops E, F of press buttons, which may be plain or bear information relating to the goods to be supplied.
Patent GB-766811-A (GB)
Title: Improvements in or relating to heading or like machines for use in mining coal or the like
Inventor: WALKER DANIEL NORMAN
IPC: B62D55/116
Filed: 1954-01-25
Abstract: 766,811. Propelling vehicles. COAL INDUSTRY (PATENTS) Ltd. Jan. 13, 1955 [Jan. 25, 1954], No. 2189/54. Classes 79(1) and 79(2). In a heading or like machine with endless track driving means the endless tracks are driven by one or more fluid actuated rams which during their working stroke abut the endless tracks. A ram 14 is mounted on a shelf 13 of the machine and a spring loaded pawl 14a at the end of the piston 19 of the ram engages abutments 15 depending from the endless track 10 and applies an anti-clockwise turning moment to the wheels 11 and 12. The reverse motion can be obtained by rotating the ram 180 degrees about the pivot 16. The pawl 14a is shown in Fig. 2 pivoted to a lug 18 on the end of piston 19, the spring 20 to hold the pawl in contact with the piston end being contained in a bore 21 in the piston 19 and attached between the lug 23 on the pawl and the lug 24 raised from a plug 24a screwed axially into the bore 21. The ram 14 may be double acting, or have return springs, and may derive power from a motor driving an air compressor or hydraulic pump, the motor being attached to or separate from the machine. The endless track may be driven by two rams one of which drives the track while the other retracts, or both of which drive the track simultaneously. The rams may be inclined to the track in a vertical plane.
Patent GB-415644-A (GB)
Title: Improved method of consolidating and waterproofing strata or masonry
IPC: C09K17/02
Filed: 1934-01-22
Abstract: 415,644. Waterproofing. FRANCOIS CEMENTATION CO., Ltd., 701, Salisbury House, London Wall, London.-(Assignees of Travaux Souterrains ; 36<bis>, Avenue de 1'Opera, Paris.) Jan. 22, 1934, No. 2237. Convention date, Nov. 1, 1933. Drawings to Specification. [Class 140.] A process for waterproofing masonry or strata, particularly in pit sinking, excavating tunnels &c., and constructing foundations, piles, dams &c., consists in injecting a fine aqueous suspension or dispersion of clay and a swelling agent for such clay. The swelling agent may be sodium carbonate, which tends to stabilize the suspension and may be mixed with the suspension before injection, or injected separately through the same or separate boreholes. A precipitating agent may then be injected, such as aluminium sulphate, sodium chloride or lime, and is preferably one which reacts with the sodium carbonate &c. to form a further precipitate. The injections may be made through concentric tubes. The process may be combined with other waterproofing or consolidating processes such as cementing or silicatization. The suspension may also contain bitumen &c. acting as a binding agent, or one of the reagents used in the silicatization process.
Patent GB-924531-A (GB)
Title: Process for producing glutamic acid crystals
IPC: C12P13/14
Filed: 1961-01-19
Abstract: Glutamic acid is obtained in a substantially non b -form by concentrating or otherwise adjusting a fermentation broth to a glutamic acid content of between 8% and 20% by weight, adjusting the pH to substantially the isoelectric point of glutamic acid and crystallising glutamic acid from the fermentation broth in the presence of at least 0.2% by weight, based on the total weight of broth (including the weight of glutamic acid), of one or more of phenylalanine, leucine, cystine and tyrosine.  The specified glutamic acid content includes glutamic acid present in the salt form. Fermentation broth from which glutamic acid has been crystallised and separated may be used as a diluent to bring the glutamic acid concentration of a fresh batch of fermentation broth, prior to pH adjustment, into the range 8% to 20% by weight. The phenylalanine, leucine, cystine and/or tyrosine may be provided as a hydrolysate of a protein or as an aqueous solution also containing glutamic acid hydrochloride separated from said protein hydrolysates.  Both sources of the above amino acids may be used to adjust the concentration of the fermentation broth, while the latter may also be used to provide the pH adjustment.
Patent GB-216910-A (GB)
Title: Improvements in appliances for playing table games
IPC: A63F7/06
Filed: 1923-01-25
Abstract: 216,910. Selway, E. D. Jan. 25, 1923. Table games.-Apparatus for playing a table game resembling " Racquets " and " Fives " comprises a table C divided into courts by stretched tapes I, M, N and carrying a back wall A and wing walls B<1>, B<2> hinged thereto against which a ball is projected by rackets carried by the players. The wings are held rigid by a rod G, diagonal stays, the tape I, and a stretched cord J passing under the table. The lower part of the back wall A and the back court are covered with pieces of felt or flannel T, S to deaden the sound and prevent the ball from rebounding from these surfaces which are out of play. A net U is fitted across the top of the walls and side wing nets Y are suspended from the extended ends of the rod G to prevent the ball from getting out of bounds.
Patent GB-980274-A (GB)
Title: Preparation of polyimides
IPC: C08G73/10
Filed: 1963-01-18
Abstract: A process for making polyimides comprises reacting at least one diamine of the formula H2N-R1-NH2 where R1 is a divalent radica containing at least 2 carbon atoms, the 2 amino groups of said diamine each being attached to separate carbon atoms of said divalent radical, with at least one tetracarboxylic acid dianhydride of the formula <FORM:0980274/C3/1> where R is a tetravalent radical containing at least 2 carbon atoms, no more than 2 carbonyl groups of said dianhydride being attached to any one carbon atom of said tetravalent radical, in an organic solvent for at least one of the reactants, the solvent being inert to the reactants, at a temperature of from 60 DEG C. to 175 DEG  C.  So as to form a polymer containing polyamide and having an inherent viscosity of at least 0.1 and then effecting ring closure of the latter to convert the polyamide-acid to the polyimide.  The conversion of the polyamide-acid to polyimide may be effected by heating to a temperature of 300 DEG  C. to 500 DEG C., by treating it with a dehydrating agent, e.g. acetic anhydride alone or in admixture with a tertiaryamine e.g. pyridine, by ring closure with a carbodiimide, e.g. dicyclohexyl carbodiimide, or by a combination of the foregoing methods.  In the examples, polyamide-acids are made from 4:41-diamino diphenyl ether and pyromellitic dianhydride and converted to polyimides by:-(1) heating to 300 DEG  C. and (2) chemical treatment.  Many diamines and tetracarboxylic acid dianhydrides are specified.  Specifications 903,272 and 980,273 also are referred to.
Patent GB-690473-A (GB)
Title: Method of and apparatus for effecting thermal processes with finely granular or pulverulent substances
IPC: B01J8/12
Filed: 1952-01-29
Abstract: <PICT:0690473/III/1> The parent process is improved in that attrition of the heat carrier is minimized by discharging it from the reaction shaft through an open-ended conduit on to a conveyer, the conduit being supplied with a gas or vapour at sufficient pressure to prevent the escape through the conduit of gas generated in the reaction chamber.  In the apparatus shown, the heat carrier passes from a heater 1 into a reactor 3 where it is contacted with a gaseous suspension of the catalyst or of the substance to be treated entering through a pipe 23.  The heat carrier then passes down into zone 4 into which steam is blown by a fan 5.  Part of the steam is recirculated to an evaporator 6, a part passes up into zone 3, and the remainder passes down with the heat carrier through an outlet conduit 14.  The heat carrier flows from the open lower end of conduit 14 on to a conveyer belt 16, the flow being controlled by a weir 19 and by the belt speed.  It then falls on to a screen 17 and passes into an elevator 18 for recirculation through the shaft.  The steam used for sealing the conduit is withdrawn at 21 and may be used for preheating the catalyst or raw material to be treated.
Patent GB-266515-A (GB)
Title: Improvements in apparatus for grading and distributing materials to storage
IPC: B07B1/30
Filed: 1926-01-28
Abstract: 266,515. Ross, W. Jan. 28, 1926. No Patent granted (Sealing fee not paid). Dischurging devices for endless-belt, chain, and rope conveyers; jigging conceyers.-Apparatus for grading coal, coke, stone, ore, &c. comprises a jigging trough or other conveyer for the material and means by which the various sizes of material are successively discharged over the side of the trough &c. In the construction shown in Figs. 1 and 3 the conveying trough 1 is mounted to reciprocate on rails 2 and the bulk of the material is fed at 6. Above the trough is mounted a rocking or rotating shaft 13 carrying arms 14 supporting a holder 15 for a comb 16 the distance between the prongs of which diminishes from the feed to the discharge end of the trough. In a modification shown in Fig. 4, the comb holder 22 carries a plurality of combs and is rotatably mounted in the arms 14 of the rock-shaft 13. A pinion 23 on the comb-holder engages a fixed rack 24 and causes the holder to rotate during its traverse. According to modifications, the trough may be of any desired shape such as curved, flat, corrugated, &c., and the comb may be actuated by any usual reciprocating or endless-chain device. The comb-holder may be arranged in helical or circular relation to the shaft 13. The grading may be varied by adjusting the partitions between the hoppers, or by adjusting the spacing of the prongs. The alternate prongs may be carried by separate holders to which a differential movement may be imparted to release material that has become lodged between them, or the combs may be vibrated by contacting with a corrugated rack &c. in their traverse. Where rough grading only is required, the prongs may be dispensed with and the grading is determined by the space between a longitudinal plate and the bottom of the trough.
Patent GB-988044-A (GB)
Title: Heterocyclic amidines and their preparation and pharmaceutical compositions thereof
Inventor: COPP FREDERICK CHARLES
IPC: C07D295/13
Filed: 1961-01-20
Abstract: The invention comprises compounds of the formula <FORM:0988044/C2/1> and acid addition salts thereof, wherein Z = N is a polymethyleneimino ring containing 6 or 7 carbon atoms, optionally bearing one or more C1- 4 alkyl substituents, A is a straight or branched alkylene chain of 1-7 carbon atoms and R1 is a hydrogen atom or a C1- 4 alkyl group e.g. CH3, and their preparation by reacting an amine R4NH2 with an amidine R1C(NR5) (NR6R7), an imino-ether R1C(NR5)(OR8) or an amide R1CONR6R7, wherein one of R4, R5, R6 and R7 is an o -polymethyleneimino-alkyl group and the other three are hydrogen atoms and R8 is an organic radical.  2 - (41 - Methylhexamethyleneimino) - ethylamine and 2 - (21 - methylhexamethyleneimino)-ethylamine are made by reacting the appropriate 2- or 4-methyl-hexamethylene imine with chloro-acetonitrile and reducing the resulting methyl - hexamethyleneimino - acetonitrile with lithium aluminium hydride. Pharmaceutical preparations for the treatment of hypertension, comprise the above amidines or their salts such as the hydrohalides, citrates, lactates, maleates, oxalates, succinates, sulphates, tartrates or p-toluenesulphonates, and a carrier, suitably in the form of powders, granules, aqueous drafts, syrups, capsules, cachets, tablets or suspensions for oral administration, sterile aqueous or non-aqueous solutions or suspensions for injection, or suppositories or pessaries.
Patent GB-651618-A (GB)
Title: Improvements in piston rings and in piston, cylinder and piston ring assemblies
IPC: F16J9/02
Filed: 1948-10-01
Abstract: 651,618. Pistons. CROSS. R. C., and CROSS MANUFACTURING CO. (1938), Ltd. Oct. 1, 1948, No. 25614. [Class 122(i)] [Also in Group XXII] In a piston and cylinder device comprising a cylinder 3 and a piston 6, the piston is fitted with L-shaped rings 1, the horizontal leg 2 being housed in a groove 9 in the piston 6 and the vertical leg 1a lying wholly outside the exterior cylinderical surface of the piston and providing the sole sliding contact between the piston and cylinder, the angle between the legs 2, 1a being greater than 90 degrees to cause the ring to spring into contact with the cylinder wall. A method of making the rings 1 from steel strip is described (see Group XXII). Specification 415,322 is referred to.
Patent GB-1128355-A (GB)
Title: Anthraquinone dyes
Inventor: WALLACE DAVID JEFFERSON
IPC: C09B1/514
Filed: 1966-01-20
Abstract: 1,128,355. Water-insoluble anthraquinone dyes. EASTMAN KODAK CO. 20 Jan., 1966 [21 Jan., 1965]. No. 2621/66. Heading C4P. Novel water-insoluble 1,4-dihydroxyanthraquinone dyes of the general formula (where Z represents the atoms necessary to complete a substituted or unsubstituted 1,4-dihydroxy-anthraquinone radical and R represents a hydroxyalkylphenyl group or a hydroxyalkoxyphenyl group, or a carboxylic acid ester or carbamic acid ester of either of these groups (there being no water-solubilizing groups present in the molecule)) are obtained by heating a 2-halogenoquinizarin, preferably a 2- bromoquinizarin, with a hydroxyalkylaniline or hydroxyalkoxyaniline or a carboxylic acid ester or carbamic acid ester thereof. If the unesterified hydroxyalkylanilines or hydroxyalkoxyanilines are used, the carboxylic or carbamic esters of the anthraquinone compounds so obtained can be produced therefrom by esterification with an aliphatic acid or anhydride, aromatic acid or isocyanate. The dyes may also contain other substituents in the 3, 5, 6, 7 and 8 positions of the anthraquinone nucleus, including chloro, nitro, amino, hydroxy or methoxy.
Patent GB-174523-A (GB)
Title: Improvements in or relating to make and break devices for induction coils and the like
IPC: H01H29/00
Filed: 1921-01-20
Abstract: 174,523. Codd, M. A. Jan. 20, 1921. Mercury interrupters; rotary interrupters; contacts.-To obtain high frequencies for induction coils the fixed contacts are made to rotate in the opposite direction to that in which the jet itself rotates. The jet is motor driven and may be of the type described in Specification 130,537. The same motor drives the contacts e, e<1> through the pulleys j, j<1>. These contacts, on which the mercury impinges, are wedge-shaped and secured to metal members e<1> on the insulating-disc f, which is carried on the lower end of the tubular steel shaft h, within which is an insulating-tube i. The shaft h carries the pulley which has a boss m against which abuts the brush-holder y carrying carbon brushes x. The shaft bearing l carries a screw-threaded nut k which supports the brushholder y, and by raising or lowering the nut k, the pulley j, and hence the shaft h, can be raised or lowered and the ratio of make to break varied owing to the wedge-shape of the contacts e, e'. A collar m<1> screwed to the shaft h by a screw m<11> limits the travel of the nut k, and the lock-nut n<1> locks the nut k. The shaft h carries at the top a mercury cap h<1> into which dips a spring- pressed lever r connected to the main terminal o, and a lead c from the cup h<1> makes connection with contact e<1>. Current from the other terminal p passes to members k, l and through the carbon brushes x to the collar g and thence to contact e. The insulating block u, carrying the shaftbearing l, is secured to the cover v of the container a.
Patent GB-1076654-A (GB)
Title: Improvements in and relating to methods of applying ohmic contacts to silicon
IPC: H01B1/00
Filed: 1965-01-21
Abstract: 1,076,654. Making ohmis contacts to silicon. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 21, 1965 [Jan. 24. 1964], No. 2694/65. Heading H1K. An ohmic contact is applied to Si using an alloy of Au, Pb, Sn and Ni. An N-type Si body 1 has an N-doped Au plate 6 interposed between it and a plate 4 of Pb-Sn alloy having a Ni layer 5 provided by a galvano-plastic (Dalic) method. A Mo or W conductor 2 having an Au coating 3 is placed against plate 4. The parts are pressed together at 100-1000 g.cm.<SP>-2</SP> and 530‹ C. in a H 2  atmosphere, thus forming an Au-Pb-Sn-Ni eutectic of expansion coefficient equal to Si. The Au layer 3 is produced by electrolysis. A P-type Si body containing B can be used together with a B-doped Au plate and a Fe-Ni conductor.