baber/WOPTO huggingface dataset:
Patent GB-289415-A (GB)
Title: Improvements in or relating to the treatment of substances containing unsaturated carbon compounds for the purpose of modifying the physical properties thereof
IPC: C08L91/00
Filed: 1928-04-26
Abstract: 289,415. Auer, L. April 26, 1927, [Convention date]. Modified fats and oils; candles.-In the treatment of substances containing unsaturated carbon compounds such as mineral or fatty oils, and particularly substances consisting of or containing high-molecular organic acids or their derivatives, with electrolytes to modify their physical properties and produce thermoplastic materials, a solution or colloidal solution of the electrolyte in an organic solvent is employed and the electrolytes consist of organic or inorganic acids, their salts or esters, metallic derivatives of organic compounds, metal oxides or hydroxides, or organic bases. The substance treated may be dissolved in an organic solvent or the treatment be effected in the presence of such a solvent. From the product the solvent may be removed as by centrifuging, distilling, or washing, and excess of the electrolyte by washing. A sulphurizing treatment with for instance sulphur or sulphur chloride, may be effected simultaneously with, or may follow, the electrolyte treatment, and accelerators such as hexamethylenetramine, aniline, or diphenylguanidine may be added. The products may be emulsified in an aqueous medium, preferably in the presence of an emulsifying agent such as ammonium linoleate, soaps, sulphonated fattyacid salts or compounds of organic bases, and in presence or absence of protective colloids. Varnishes, linoleums, rubbers, and soaps may be prepared from the products, with the addition, if necessary, of filling materials, pigments, or solvents. In examples :-Chinese wood oil is treated with a solution of sodium in amyl alcohol, and the excess of alcohol distilled off. The jellylike product is mixed with iron oxide and sulphur and heated at 160‹ C., and finally pressed in moulds. Chinese wood oil and ether are treated with a mixture of stannic tetraphenyl and alcohol, the solvent distilled off, and the product emulsified in water with the assistance of the reaction product of a fatty oil and sodium cresylate. The emulsion can be used with rubber latex as a rubber substitute. Specifications 14281/10, [Class 2 (iii), Dyes &c.], 153,942, 259,431; 261,406, [Class 2 (iii), Dyes &c.], and 287,943 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the treatment of goudrous, to the use of sulphonated fatty acids, organic bases, albuminous compounds, sulphonated alkylated aromatic hydrocarbons, and saponin as emulsifying-agents, and to the employment of the products in the manufacture of candles Hungarian Specifications 3083/26, 3088/26, 3109/26, and 3145/26 are also referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-1489683-A (GB)
Title: Apparatus for obtaining the presence in a receiving device of fluid under two different pressures for successive alternate periods of time
IPC: A61H23/04
Filed: 1975-11-04
Abstract: 1489683 Apparatus for applying pressure to the body P W MATTHEWS 4 Nov 1975 [25 March 1975] 12400/75 Heading A5R [Also in Division F2] Apparatus for applying two different pressures to a part of the body for successive alternate periods of time comprises a first fluid conduit 10 connected to a source of fluid 1 under superatmospheric pressure, a second fluid conduit 7 connected to a receiving device for transmitting pressure to a part of the body, a supply valve 11 (see Division F2) having a first operative position in which communication is provided between the fluid, conduits 10 and 7 and a second operative position in which communication is provided between the second fluid conduit 7 and an exhaust path 12 to atmosphere, a control device 14 for actuating the supply valve and first and second timers 16 and 17 connected to the control device and arranged such that upon termination of a period determined by the first timer the control device actuates the supply valve into one of its operative positions and initiates running of the second timer, and upon termination of a period determined by the second timer, the control device causes the supply valve to shift into its other operative position and initiates running of the first timer. The receiving device may be a double-walled sleeve, Fig. 6, adapted to receive a patient's limb such that when fluid under pressure is applied to the space defined between the walls, pressure is exerted on the limb. The control device may be a fluid logic device comprising two 3-input OR/NOR logic elements 1 and 2, the OR outputs being X<SP>1</SP> and X<SP>2</SP> and the NOR outputs being Y<SP>1</SP> and Y<SP>2</SP> respectively. The timers are actuated by application of pressure to diaphragm switches 19, 21 connected to outputs Y<SP>1</SP> and Y<SP>2</SP> respectively and the valve is actuated by pressure applied alternately to inlets 11a and 11b connected to outputs X<SP>2</SP> and X<SP>1</SP> respectively. When timer 16 reaches the end of its set period, it opens a valve 16a connected to input C<SP>2</SP> of the control device, thereby causing the control device to change over to its other steady state and actuating the valve 11 and the other timer 17. The timers may be mechanical timers or air-bleed timers.
Patent GB-1355993-A (GB)
Title: Prostaglandins and their preparation
IPC: C07C405/00
Filed: 1971-04-30
Abstract: 1355993 Cyclopentane derivatives ROUSSEL UCLAF 30 April 1971 [30 April 1970] 12449/71 Heading C2C The invention comprises novel cyclopentane derivatives of the formula wherein R is H or C 1-8  alkyl, R 1  is H or C alkoxycarbonyl, R 2  is H, COOH, or C 2-9  alkoxycarbonyl, R 3  is H or a 2-tetrahydropyranyl, m is 3, 4 or 5 and n is 2, 3 or 4, provided that when R 1  is C 2-9  alkoxycarbonyl, R is C 1-8  alkyl, R 2  is H and R 3  is 2-tetrahydropyranyl. When R 2  is C 2-9  alkoxycarbonyl, R is C 1-8  alkyl, R 2  is H and R 3  is 2-tetrahydropyranyl; and when R 2  is COOH, R and R 1  are H and R 3  is 2-tetrahydropyranyl and processes for their preparation. Compounds of the above formula in which R, R 1 , R 2  and R 3  are H are prepared by hydrolysing under acidic conditions compounds of the above formula in which R, R 1  and R 2  are H and R 3  is 2-tetrahydropyranyl, obtained by decarboxylating the corresponding compounds in which R and R 1  are H, R 2  is COOH and R 3  is 2-tetrahydropyranyl, the latter being prepared by hydrolysing under basic conditions compounds of the above formula in which R is C alkyl, R 1  is H, R 2  is C alkoxycarbonyl and R 3  is 2-tetrahydropyranyl, resulting from the treatment of compounds of the above formula in which R is C 1  alkyl, R 1  is C alkoxycarbonyl, R 2  is H and R 3  is 2-tetrahydropyranyl with alkali metal alkoxides. The last mentioned compounds of the formula above are made by reacting under basic conditions compounds of the formula with compounds, of the formula wherein Hal is Cl or Br and R 4  is C 1 -alkyl. The following intermediates are also prepared: 6 - (2 - tetrahydropyranyloxy) - 1 - chloro - 4- hexyne, 7 - (2 - tetrahydropyranyloxy) - 5- heptynenitrile, 7 - (2 - tetrahydropyrenyloxy)- 5-heptynoic acid and the ethyl ester thereof, ethyl 7-hydroxy-5-heptynoate, ethyl 7-hydroxy- 5-heptenoate, ethyl 7-bromo-5-heptenoate, ethyl 3 - oxo - 6 - heptynoate, 1 - (1 - imidazolyl) - 4- penlyn - 1 - one, ethyl 3 - ethoxy - 2 - hepten- 6-ynoate, ethyl 3-ethoxy-8-hydroxy-9-chloro-2- tetradecen-6-ynoate, ethyl 3-oxo-8-hydroxy-9- chloro - 6 - tetradecynoate, ethyl - 3 - oxo - 8- hydroxy - 9 - chloro - 6 - tetradecenoate, ethyl 3 - oxo - trans - 8,9 - epoxy - cis - 6 - tetradecenoate, ethyl 3 - (1 - pyrrolidinyl) - trans - 8, 9 - epoxy - cis - 6 - tetradecenoate, ethyl 3 - (3- hydroxy - trans - 1 - octenyl)cyclopentan - 1- one-2-carboxylate and ethyl 3-[3-(2-tetrahydropyranyloxy) - trans - 1 - octenyl]cyclopentan-1- one-2-carboxylate. Pharmaceutical compositions, suitable for oral, parenteral or rectal administration contain the novel compounds of the above formula in which R is H or C 1-8  alkyl, R 1 , R 2  and R 3  are H, together with pharmaceutical carriers or excipients. The compounds have prostaglandin-like activities.
Patent GB-797005-A (GB)
Title: Improvements in and relating to tape dispensing and applying apparatus
IPC: B31B3/72
Filed: 1955-04-29
Abstract: 797,005. Feeding webs. ADAMS POWEL EQUIPMENT, Ltd., and POWEL, W. S. April 24, 1956 [April 29, 1955], No. 12465/55. Class 100(1) [Also in Group XV] A carton taping machine comprises essentially similar upper and lower units 1, 2 adjustably spaced apart for applying adhesive tape to the upper and lower faces of cartons fed between the units, each unit having a first pair of feed rollers 13, 13<SP>1</SP> and a second pair of feed rollers 14, 14<SP>1</SP>, which may also be moistening rollers, the rollers being profiled to define bites each including a V-shaped portion and arranged so as to feed the tape vertically into the path of the cartons, and each unit including a cutter blade 42 located between the two pairs of rollers and means which upon contact with a carton initiate the feed of tape by the rollers 13, 13<SP>1</SP> and upon a carton passing out of control therewith, arrest the feed and operate the cutter blade 42 to sever the tape. Each unit has a pair of spaced endless belts 5 for feeding the cartons between guide rails 81. The tape is fed from a reel (not shown) via guide rolls 10, 11 to the feed rollers 13, 13<SP>1</SP>, 14,14<SP>1</SP> which bend the tape transversely to include a V-shaped part to make it substantially self-supporting. The roller 13<SP>1</SP> is mounted on a spindle 19 carried by arms 20 pivoted at 21 and coupled at their outer ends through levers 22, 23 to a lever 24 operable by a solenoid 25. When a carton enters between the upper and lower units, its front edge runs over a roller 35 on a spring-urged pivoted arm 36 which is depressed to operate a micro-switch 39; this energizes the solenoid 25 which moves the feed roller 13<SP>1</SP> towards the roller 13 to initiate feed, the rollers being held apart in the de-energized condition by a spring 40. Feeding continues until the solenoid is de-energized which occurs when the rear edge of the carton passes beyond a second roller 41 on the arm 36. Thus an amount of tape is automatically fed of a length greater than the length of the carton by an amount equal to the spacing of the rollers 35. 41. As soon as the solenoid is de-energized, the cutter blade 42 is driven through the tape by a lever 43 actuated on movement of the solenoid armature by a spring 40. By the time the front edge of the carton approaches a guide roller 15, the end of the moistened tape has reached the position shown in Fig. 2; at that point the leading face of the carton contacts a roller 50 carried by a pair of spring-urged convex arms 51 pivoted at 52. The tape is applied by roller 50, pressure rollers 52, and rollers 56 carried by arcuate arms 55. Instead of the rollers 35, 41 and the spring loaded arm 36, a pair of micro-switches may be mounted on one of the guide rails 81.
Patent GB-1031361-A (GB)
Title: Benzenesulphonyl-semicarbazides and preparations containing them
IPC: C07C311/49
Filed: 1963-03-29
Abstract: The invention comprises sulphonyl ureas of the formula <FORM:1031361/C2/1> and salts thereof, wherein R is a methyl or ethyl group and X and Y are each hydrogen, halogen, or a C1- 6 alkyl or alkoxy group and their preparation by (a) reacting a benzenesulphonyl isocyanate or a compound which reacts as an isocyanate such as a benzenesulphonyl carbamic ester, thiocarbamic ester or carbamic halide, or a benzenesulphonyl urea or N1-substituted urea such as an N1-acyl, N1-aryl, N1,N1-di-aryl or a N,N1-bis-benzenesulphonyl urea, with an N-alkyl-N-benzylhydrazine; (b) reacting a benzenesulphonamide with an N-alkyl-N-benzyl-imino-isocyanate or a compound which reacts as an isocyanate such as an N-alkyl-N-benzyl-hydrazino-N1-carboxylic acid ester, mono-thiocarboxylic ester or carboxylic acid halide or with a 1 - alkyl - 1 - benzyl - 4 - acyl - semicarbazide or 1,5 - dialkyl - 1,5 - dibenzyl carbazide or with a 1-alkyl-1-benzyl-semicarbazide which carries one or two aromatic substituents on the N4-atom, or (c) decomposing a 1-benzenesulphonyl - 3 - (N - alkyl - N - benzyl) - iminoparabani acid by hydrolysis, or a corresponding benzenesulphonyl-thiosemicarbazide by desulphuration with oxides or salts of heavy metals or with oxidizing agents such as hydrogen or sodium peroxide or nitrous acid.  Pharmaceutical preparations having hypoglycaemic activity comprise the above compounds of the invention and a carrier, preferably in a form adapted to oral administration such as tablets.
Patent GB-779483-A (GB)
Title: Improvements relating to power hack saw machines
IPC: B23D51/20
Filed: 1956-04-25
Abstract: 779,483. Sawing. CASH, G. H. April 25, 1956, No. 12646/56. Class 145 A power-operated hack saw comprising a saw frame 19 reciprocable on an arm 16 pivoted at 15 is provided with a hydraulic dashpot 32 for relieving the saw blade 20 during the return stroke and with ratchet means 45, 48 which, at the end of a cutting operation, are rendered operative so that during continued reciprocation of the frame the successive relieving actions raise the arm step-by-step to an elevated position ready for a further sawing operation. The rack 45 may be mounted on the arm 16 and the pawl 48 on the machine frame 10 but preferably the rack is carried by a fixed bracket 25 having a slot 27 cooperating with a headed pin 28 to support the arm laterally. In the lowest position of the saw frame a trip 53 moves the pawl 48 to operative position, in which it is held by a spring-pressed plunger 51 snapping over a projection on the arm 16. In the raised position of the frame, the arm 16 opens a switch to stop the driving motor and the pawl 48 may be arranged to close this switch again as it is manually disengaged from the ratchet 45 to allow the saw to descend on a fresh workpiece. The saw frame 19 is reciprocated by a crank rod 24 and a crank disc 22 on a shaft 21 also carries an eccentric 29 oscillating a link 31 by which the dashpot cylinder 35 is raised during each return stroke of the frame. The dashpot piston 36 has a non- return valve 44 and a needle valve 41 adjustable by a handle 43 so that the amount of relieving action can be adjusted, the handle 43 being linked to the pawl by a rod 53 and adjustable abutments 56, 57 so that movement of the pawl to operative position closes the valve 41 and causes the relieving action to be a maximum when lifting the arm 16.
Patent GB-228411-A (GB)
Title: Improvements relating to motor cycle handle-bars
IPC: B62K21/16
Filed: 1924-05-23
Abstract: 228,411. Porter, J. A. May 23, 1924. Handle - bars for cycles are mounted in one or more jaw clamps 7, 8 combined with a ball-race head 10 for the steering- column 13, the jaws 7 being made solid with or as an integral part of the head. The head 10 is split at 12 to provide an upper clamp 11 which is tightened about the column by a bolt and nut 14. The jaws 8 are pivoted upon a bolt 15 passed through the head 10 and are clamped over the handle-bar 4 by bolts 16; on slackening these bolts the handlebar can be turned to raise or lower the handles. The links of a spring fork may be attached to arms 5 at the front of the head 10.
Patent GB-1494941-A (GB)
Title: Transistor amplifiers
IPC: H01L29/00
Filed: 1975-03-26
Abstract: 1494941 Transistor amplifier SONY CORP 26 May 1975 [29 March 1974 25 April 1974] 12718/75 Heading H3T To overcome saturation distortion of a triodelike FET and inefficiency of a bipolar transistor, one of each supply a common load but with the bipolar transistor operative only when the FET current exceeds some threshold near saturation and form an amplifier (Fig. 6, not shown), or two such pairs Q1a, Q2a and Q1b, Q2b form a single ended push-pull amplifier fed from a single input t 3  via transistor Q 3  via a bias line providing class A, AB, B or C operation into load Z L . The threshold of operation of bipolar topping transistors Q1a, Q1b may be set automatically as in Fig. 10 by feeding their bases from source loads R2a, R2b on FET's Q2a, Q2b. In this embodiment the FET's supplying single ended drain load Z L  are biased and driven from the collectors of Q4a, Q4b themselves driven by differential input t 1a , t 1b  with bias from C 1 - decoupled chain of diodes D1-4 forming a near constant-voltage device, with the fraction of its drop applied across the bases of Q4a, Q4b adjustable via R5. Transistors Q1b, Q2b, Q3b, Q4b are of complementary conductivity to Q1a, Q2a, Q3a, Q4a. Z L  may be made a source load on the FET's (Fig. 11, not shown) if each bipolar transistor Q1a, Q1b is made of complementary conductivity to its FET Q2a, Q2b the collectors being connected to corresponding sources. The threshold of operation is now set by drain load resistors. The input to the amplifier may be single ended (Fig. 11, not shown), bias for the FET's being set by the constant current circuit of Q5 matching the drop across R10 against the constant voltage of the diode chain D5-7. The construction of bipolar transistors preferred for combination with the FET, having symmetrical emitter-collector characteristics, high base-emitter breakdown voltage and high grounded-emitter current amplification factor is illustrated (Figs. 4, 5, not shown). If a conventional bipolar transistor is used, a protective diode (Fig. 8, not shown) is advisable. The construction of a preferred lowimpedance triode-like FET with high transconductance (Figs. 1, 2, not shown) is illustrated.
Patent GB-826599-A (GB)
Title: Detachable couplings for fluid conduits
IPC: F16L37/23
Filed: 1958-04-22
Abstract: 826,599. Pipe couplings. BRODEN, E. W. April 22, 1958 [April 23, 1957], No. 12725/58. Class 99(1). A detachable coupling of the quickly-disconnectible type for fluid conduits comprises a part 10 having a saw tooth portion 14 for connection to a hose and a part 12 having an externally threaded portion 13 for connection to a pipe, the part 10 having an auxiliary sleeve 24 screwed thereon and provided with a plurality of holes 34 within each of which a ball 35 is mounted for engagement with a peripheral groove 36 in the part 12. A spring-loaded sleeve 11 located around the auxiliary sleeve 24 and displaceable axially thereto has a part 32 cooperating with the balls 35, when the coupling is engaged, to hold the balls within the groove 36. At least one of said balls, 35<SP>1</SP>, has associated therewith a spring 40 located within the space between the sleeves 11, 24 and attached to the sleeve 11, so that on movement of the latter to a position in which the balls no longer co-operate therewith the spring 40 releases the ball 351 so that the parts 10, 12 may be disengaged, the sleeve 11 being held in its moved position by the spring 40. As shown, an axially displaceable spring-loaded tubular part 19 having a closed conical end portion and located within the coupling is provided with a plurality of apertures 21 to enable communication between its interior and a chamber 22 in the part 10 and makes a fluid-tight joint at its other end with the part 15. The spring 40 of hairpin shape is mounted within a groove 39 in the sleeve 11 adjacent the ball 35<SP>1</SP>, one arm of the spring being fixed to the sleeve and its free end 42 being bent into a hook shape. For uncoupling, the sleeve 11 is moved axially against the spring 33 until the balls 35 engage the inclined surface of the sleeve 11 and are moved outwardly of the coupling by the inclined edges of the groove 36 as the part 12 is moved to the left by the tubular part 19 under the action of springs 16, 28, the sleeve 11 being locked in this position by the hook shaped end of the spring 46 engaging a flange 45 on the sleeve 24. A key 48, Fig. 4, is provided between the sleeves 11, 24 for preventing relative rotation between them so that the spring 40 lies centrally within the groove 39. When engaging the coupling parts the part 12 is located within the sleeve 24 and the two parts pushed together whereby the balls 35 are displaced outwardly and the ball 35<SP>1</SP> releases the spring 40 from its hooked position whereupon the spring 33 urges the sleeve 11 to the left so that the inclined surface of the sleeve slides over the outside of the holes 34 to prevent outward movement of the balls 35. In a modification, at least one of the balls is of smaller diameter than the remainder and the hairpin shaped spring is arranged so that in the disengaged position of the coupling the spring holds the sleeve against axial movement by contact against the ball.
Patent GB-788009-A (GB)
Title: Improvements in and relating to adhesive compositions
Inventor: JOESTING EDWIN O
IPC: C09J121/00
Filed: 1955-05-03
Abstract: Adhesive compositions are made by blending 100 parts of a natural or synthetic vulcanizable rubbery diene polymer and 3 to 15 parts of an oil - soluble, heat advancing phenol - aldehyde resin compatible therewith, heating the blend without agitation until completion of the reaction and then masticating the mixture in the presence of admixed compatible tackifier resin until the mass is smoothly dispersible in heptane.  Sulphur vulcanizing agents, e.g. dipentamethylene thiurum tetrasulphide may be included.  The phenol-aldehyde resins specified are made by reacting formaldehyde with substituted phenols, e.g. p-tertiary-butyl phenol, p-tertiary amyl phenol or p-phenyl phenol.  Activators such as zinc oxide or zinc resinates may be added to promote the curing reaction.  In the examples: (1) a butadiene-styrene copolymer, zinc oxide, lecithin, "Pentalyn H" (the pentaerythritol ester of hydrogenated resin) and a phenol-aldehyde resin were admixed by warming the butadiene-styrene copolymer on a rubber mill, the other ingredients added, the mass cured by heating in an autoclave without agitation, milled, dispersed in a heptane - alcohol mixture, additional "Pentalyn" added and the resultant mixture coated on a paper backing; (2) and (3) rubber is warmed, zinc oxide, a tackifier resin (thermoplastic hydrocarbon terpene resin), dipentamethylene thiuram tetrasulphide and a phenol aldehyde resin added, the resultant mixture being heated in an autoclave and milled, further tackifier resin added, the mass dispersed in heptane containing alcohol and further tackifier resin added.  The resultant adhesive compositions may be coated on paper, cloth, transparent cellulose films or flexible metal foils to form pressure-sensitive adhesive tapes.  "Pentalyn" is a Registered Trade Mark.ALSO:Adhesive compositions are made by blending 100 parts of a synthetic or natural rubber and 3 to 15 parts of oil-soluble phenol-aldehyde resin compatible therewith, heating the blend without agitation, until completion of the reaction and then masticating the mixture in the presence of admixed compatible tackifier resin until the mass is smoothly dispensible in heptane. Sulphur vulcanizing agents, e.g. dipentamethylene thiuram tetrasulphide and activators, e.g., zinc oxide or zinc resinate, may be included.  In examples (2) and (3), zinc oxide, a tackifier resin (a terpene resin), dipentamethylene thiuram tetrasulphide and a phenol-aldehyde resin are added to previously warmed smoked rubber sheets and milled, the resultant mixture being heated in an autoclave and remilled with further tackifier resin, the products being dispersed in an ethyl alcohol-heptane mixture containing further tackifier resin, coated on a backing and dried to form a pressure sensitive adhesive tape. Specified bases are paper, cloth, cellulosic films, fibrous webs or metal foils.