baber/WOPTO huggingface dataset:
Patent GB-888665-A (GB)
Title: New steroid compounds
Inventor: CAMERINO BRUNO
IPC: C07J75/00
Filed: 1959-02-26
Abstract: The invention comprises 19-nortestosterones of the general formula <FORM:0888665/IV (b)/1> wherein R represents hydrogen or an acyl group derived from an aliphatic, cyclic or partly cyclic carboxylic acid containing not more than 9 carbon atoms, and the preparation of the above 4-hydroxy substituted compound by dehydrating 17a  - methyl - 19 - nor - andros - tone-4,5,17b -triol-3-one in alkaline solution at room temperature, e.g. by means of a methanolic solution of potassium hydroxide and, if necessary, neutralising the solution, e.g. with acetic acid, and, when required, esterifying the 4-hydroxy compound with the required acid chloride or anhydride to form a 4-ester of the above general formula, e.g. in the presence of a tertiary amine such as pyridine.  Esters mentioned are the 4-acetate, propionate, b -cyclopentylpropionate, benzoate and b -phenylpropionate.  Detailed examples are given.  Reference has been directed by the Comptroller to Specification 864,610.ALSO:A therapeutic composition comprises at least one 19-nortestosterone of the general formula <FORM:0888665/VI/1> wherein R represents hydrogen or an acyl group derived from an aliphatic, cyclic or partly cyclic carboxylic acid containing not more than 9 carbon atoms, and a pharmaceutically acceptable carrier therefor.  Reference has been directed by the Comptroller to Specification 864,610.
Patent GB-839766-A (GB)
Title: Improvements in or relating to barrel type extruders
Inventor: PUMPHREY HOWARD FRANCIS
IPC: B29C48/08
Filed: 1956-03-03
Abstract: 839,766. Extrusion machines. DUNLOP RUBBER CO. Ltd. Feb. 18, 1957 [March 3, 1956], No. 6757/56. Class 87(2). A barrel-type extruder for delivering an extruded strip rotating about its own axis comprises a barrel 1 having a feed aperture 8, an extruder die 2 at one end of the barrel, means for rotating the barrel and die together about the longitudinal axis of the barrel, an extruder screw .30 mounted coaxially within the barrel, means rotatable with the barrel for carrying and supplying thereto a supply of extrudable material and means for rotating the screw at a predetermined speed relative to the speed of rotation of the barrel. In the apparatus described  for simultaneously rubberising three lengths of rayon tyre cord, a plate 3 attached to the end of the barrel opposite the die carries four spindles 4, one with a spool 5 wound with unvulcanised rubber strip and the others with spools 6 wound with tyre cord. The rubber passes to the screw 30 through apertures 7 and 8 and the cords pass through apertures 9 and 11  to a transverse passage 18c between the die 2 and a die head 12 which is driven by the die. The cords pass over pulleys 17a, 20, 21 and are rubberised in the passage 18c with rubber extruded through the orifice 16 of the die. The screw and barrel are rotatable in opposite or the same directions at predetermined differential speeds in order to obtain the required rate of extrusion. A cross-bar 13 in which the die head 12 is rotatably mounted is carried from the main frame 10 by a pair of pistons and cylinders which enable the die head to be disengaged from the die 2. Specification 838,991 is referred to.
Patent GB-430899-A (GB)
Title: Improvements in or relating to bags or like containers
IPC: B65D33/02
Filed: 1935-03-04
Abstract: 430,899. Bags &c. MEYER, G. J., 164, Faubourg St. Honore, Paris. March 4, 1935, No. 6767. Drawings to Specification. [Class 94 (ii)] The transparent section of a bag &c., as claimed in Specification 422,331, is first reinforced along two or more of its edges by glueing thereon, on one or both sides, bands of paper, cloth, &c. so that a stitching or like operation with textile or wire thread may be effected through the reinforced section. The non- stitched edges of the transparent section may themselves be reinforced by one or more rows of stitching.
Patent GB-590743-A (GB)
Title: Improvements in scissors
IPC: B26B13/04
Filed: 1945-03-17
Abstract: 590,743. Scissors. SNELL, F. A. March 17, 1945, No. 6772. [Class 30] [Also in Group XXV] In a pair of scissors the pivot pin has lateral extensions at the end opposite to the head and one of the frames has recesses into which the extensions are brought by rotation of the pivot pin and where they are held by spring means. As shown detachable blades 11 attached by pin and keyhole arrangements 15 to blade shanks 3 have holes 28 corresponding to pivot holes 21, 30 in the frames 1, 2, the holes 28 and 30 having extensions 29, 31, 32 to allow a cross pin 35 carried by the pivot pin 23 to pass. Similar extensions 27 of the hole 21 extend for part of its depth only and a recess 22 is provided in the other side of the frame 1 to receive the head 24 of the pin 23 and a spring washer 26. The frame 2 has recesses 34, 36 to receive the cross pin 35, cams 33, 39 connecting the bottoms of the extensions 31, 32 with the recesses 36, 34. A further pair of recesses 37, 38 are of different depth from the recesses 36, 34 and thus a different shearing force between the blades is obtained when the cross pin 35 is received in these recesses. The blades 11 are offset a few degrees near the pivot to give them a transverse slope.
Patent GB-1037986-A (GB)
Title: Lactone amides in lubricating oils
IPC: C07D307/33
Filed: 1964-02-18
Abstract: Lubricants comprise alkyl butyrolactone-a -acetic acids of formula <FORM:1037986/C4-C5/1> wherein R is hydrogen or the residue of an amine radical (1-20 C) and (0-10 N), and R1, R2 and R3 are hydrogen or alkyl radicals containing from 1-300 carbon atoms, the total carbon atoms in R1, R2 and R3 being at least 10 and not more than 300 (see Divisions C2 and C3) with an oil of a lubricating viscosity. The compounds are also effective as detergents in fuels. An example describes the use and properties of a tetraethylenepentamine amide of an alkylbutyrolactone-a -acetic acid derived from a butylene polymer. Base oils listed are naphthenic, paraffinic and mixed oils, coal product derivatives, alkylene or alkylene oxide type polymers, dicarboxylic esters, liquid phosphorus esters, alkyl benzenes, polyphenyls, alkyl biphenyl ethers, and silicon polymers and they may be used singly or admixed.  Metal dithiophosphates may be included together with detergents, V.I. improving agents, rust inhibitors and grease thickeners.ALSO:The invention comprises amides of alkyl butyrolactone-a -acetic acid of formula <FORM:1037986/C2/1> where R is hydrogen or a residue of an amine radical (1-20 C and 0-10 nitrogen), and R1, R2 and R3 are hydrogen or alkyl radicals containing 1-300 carbon atoms the total combined number of carbon atoms in R1, R2 and R3 being at least 10 and not more than 300, specifically the tetraethylene pentamine amides of polybutenylbutyrolactone-a -acetic acid and of dodecylbutyrolactone-a -acetic acid.  The amides are prepared by heating an olefinic hydrocarbon with dimethyl bromosuccinate in the presence of a peroxide catalyst, hydrolysing the resulting ester to acid and reacting the lactone obtained with an amine. The amines mentioned are ethylene diamine and triamine, piperazine, triethylene triamine, tetraethylene pentamine, heptaethylene octamine, nonaethylene decamine, dipropylene triamine, tetrabutylene pentamine, hydroxyethyl-ethylene diamine, and N-aminoethyl piperazine and mixed ethylene diamine condensates are preferred. The preparation of the tetraethylenepentamine amide of a polybutenylbutyrolactone-a -acetic acid is prepared in an example. The products may be used as detergent additives in lubricants.ALSO:Amides of alkylbutyrolactone-a -acetic acids of general formula <FORM:1037986/C3/1> wherein R is hydrogen or a residue of an amine radical (1-20 C) and 0-10 N), and R1, R2 and R3 are hydrogen or alkyl radicals containing from 1 to 300 carbon atoms, the total combined number of carbon atoms in R1, R2 and R3 being at least 10 and not more than 300, are prepared by reacting the lactone of the acid with a primary or secondary amine.  An example describes the preparation of tetraethylene-pentamine amide of an alkylbutyrolactone-a -acetic acid derived from a butylene polymer (M.W. about 850).  The products are used as lubricant additives.
Patent GB-434498-A (GB)
Title: Improvements in or relating to door locks
IPC: E05C9/00
Filed: 1934-03-03
Abstract: 434,498. Door latches. GAZE, E. W., 2, Willow Avenue, Barnes, London. March 3, 1934, No. 6851. [Class 44] A door lock operable by a handle on one side and by a lock on the other has two or more spring actuated latch members connected to a single operating mechanism. Two latch members a slide in guides b and are normally thrust outwards by springs f. Pins d or ribs on the members a are engaged by the ends of a bar h connected at its centre by a link k to a slide m having a roller o engaged by a follower p. The bar h limits the outward movement of the latch members by engaging the front of the casing, and pins g or other stops limit the inward movement. The operating mechanism may be deadlocking.
Patent GB-917006-A (GB)
Title: Reduction of organic compounds
Inventor: CHAMBERLAIN DAVID LEROY
IPC: C07C29/147
Filed: 1959-02-27
Abstract: Organic compounds which contain an aldehyde, ketone or acid chloride group are reduced to alcohols by means of an adduct of an organic amine with borane BH3 or an alkyl or aryl borane BH2R or BHR2 which contains at least one hydrogen atom attached to the boron atom.  In the case of certain compounds, which may be reduced without heating, the boranes of ammonia may also be employed as reducing-agents.  The reduction may be carried out in a very wide variety of solvents including water and alcohols.  In Example 1, acetone is reduced to isopropyl alcohol by means of dimethylamine-borane dissolved in diethyl ether. Acetone may also be reduced by means of piperidine-borane in aqueous solution.  In Example 2, benzyl alcohol is obtained by reducing benzaldehyde with dimethylamineborane; and in Example 4, benzyl alcohol is obtained by reducing benzoyl chloride with trimethylamine-borane.  Example 3 relates to the preparation of 2,2,2-trichloroethanol by reducing chloral hydrate with trimethylamineborane.  In Example 5, cinnamyl alcohol is obtained by reduction of cinnamaldehyde, dissolved in glacial acetic acid, by means of dimethylamine borane.  The method may also be used for the reduction of acetophenone, anisaldehyde, and 2,5-hexanedione.  The adduct of ammonia and dimethyl-borane is mentioned as a useful reducing-agent.
Patent GB-525892-A (GB)
Title: Improvements in closure caps for use on jars or like receptacles
IPC: B65D41/04
Filed: 1939-03-02
Abstract: 525,892. Vacuum closures; closure caps. WHITE CAP CO. March 2, 1939, No. 6871. Convention date, July 7, 1938. [Class 125 (iii)] A vacuum closure convertible into a screw cap for use on jars having necks with projecting inclined ledges 24 has a top portion containing the usual sealing gasket 14 and a depending annular skirt portion 11 having preformed therein a number of slits 15 which, in the first instance, are located outwardly beyond the circumference of the ledges 24 so that the closure may be completely seated on and removed from the receptacle neck by longitudinal movement alone, whatever the relative positions of the slits and the ledge, as shown in Figs. 1 and 4, and are subsequently displaced inwardly, as shown in Fig. 2, so that they may engage under the ledges 24 when the closure is reapplied and screwed round. The edges of the slits 15 forming the depressions 16 are slightly turned inwardly as shown in Fig. 4, so as to present a smooth external surface. The neck of the jar is preferably formed with a ledge 22 so as to leave a space between the bend 12 of the skirt 11 and the ledge for the insertion of a prising tool for initially removing the closure.
Patent GB-1028666-A (GB)
Title: Improvements in or relating to the disposal of molten slag
IPC: C21B3/08
Filed: 1962-02-22
Abstract: <PICT:1028666/C6-C7/1> Molten slag formed in the manufacture of steel is made into hard non-porous fragments by forming a pool of the molten slag on a floor, preferably of loose non-porous gravel, and applying an implement blade e.g. an upright dozer blade, to the surface of the pool spreading the molten slag in a thin layer to cool it rapidly.  The blade is worked to-and-fro to incorporate the gravel floor in the cooling mass and assist fragmentation.  The floor 5 of gravel is formed into a reservoir 23 where the slag is initially poured, and is formed of a bank 15 covered with cast iron mould plates 16, which also are used to form the side walls 4, and the floor includes a wall 21 and ridge 22 of the gravel which contains the liquid in the early stages, and an upright blade 10 spreads the liquid, ultimately destroying the ridge and wall, and incorporating the gravel into the cooling slag.  The bulldozer blade is then exchanged for a bucket to offload the granular product.  A curtain of suspended chains 12 prevents the molten slag from flowing under the tractor.ALSO:Molten slag formed in the manufacture of steel is made into hard non-porous fragments by forming a pool of the molten slag on a floor, preferably of loose non-porous gravel, and applying an implement blade, e.g. an upright bulldozer <PICT:1028666/C1/1> blade, to the surface of the pool spreading the slag in a thin layer to cool it rapidly.  The blade is worked to-and-fro to incorporate the gravel floor in the cooling mass and assist fragmentation. The floor 5 of gravel is formed into a reservoir 23 where the slag is initially poured, and is formed of a bank 15, covered with cast iron mould plates 16, which also are used to form the side walls 4, and the floor includes a wall 21, and ridge 22 of the gravel which contain the liquid in the early stages, and an upright blade 10 spreads the liquid, ultimately destroying the ridge and wall incorporating the gravel into the slag.  The bulldozer blade is exchanged for a bucket to off-load the granular product.  A curtain of suspended chains 12 prevents the molten slag from flowing under the tractor.
Patent GB-657421-A (GB)
Title: Improvements relating to the binding of weft threads in weaving
IPC: D03D47/40
Filed: 1948-03-05
Abstract: 657,421. Leno shedding mechanism; selvedges; warp stop-motions. SULZER FRERES SOC. ANON. Mar. 5, 1948, No. 6908. Convention date, March 8, 1947. [Classes 142(i) and 142(iv)] Selvedges. At the edges, and intermediately if the fabric is to be cut into strips, pairs of warp threads are twisted together, picks of weft being inserted after successive twists in the same direction before the twist is reversed. The pairs of threads do not all reverse their twist at the same time. Shedding mechanism. The pairs of threads may be supplied by bobbins mounted on rotatable heads, but preferably the twisting heads shown in Fig. 16 are used, in which case the threads 28. 29 are taken from the normal warp beam or from stationary bobbins; each pair of threads passes through eyes in an externallytoothed twisting ring 35 rotated in 180 degree steps. One mechanism for rotating the rings 35 comprises two cam-oscillated toothed sectors, some twisting rings being operated by each sector; the cams are out of phase with each other and may be rotated by Geneva mechanism. Other mechanisms described employ mutilated gears rotated continuously or by Geneva mechanism. In the embodiment shown in Fig. 7, shafts 41, 42, each actuating some of the twisting rings, are driven by gears 44, 45 spaced round the periphery of a cam 77. The gears carry series of followers engaging a discontinuous cam track, Fig. 8, such that, as a follower 85 emerges from a section 80 of the track, the next follower 86 enters a section 81; the sections, which may be separate pieces capable of being reassembled to change the pattern, include sections which keep the gears 44, 45 still while two picks are inserted in the same shed. Warp stop-motion. To obviate undue vertical movement of the detectors 32, Fig. 16, a lifter 106 actuated by an eccentric 104 supports them as the shed changes. The detectors respond to breakage of whichever thread 28, 29 is uppermost.
Patent GB-356169-A (GB)
IPC: C22C38/22
Filed: 1930-03-03
Abstract: Permanent magnets are made from nickel-free steels containing essentially 0,75-1,15 per cent of carbon, 2,02-4,9 per cent of chromium and 0,5-1,5 per cent of molybdenum or 0,5-2 per cent of tungsten or 0,6-2 per cent of molybdenum and tungsten together.  Up to 1 per cent of cobalt and 0,5 per cent of vanadium, 0,25-0,9 per cent of manganese, 0,5-0,35 per cent of silicon and the usual small amounts of sulphur and phosphorus may also be present.  The effect of molybdenum is illustrated by examples in which a number of permanent magnets were hardened without further annealing and were then magnetized, and others were first annealed for about 5-10 minutes at 780-800 DEG  C. then for 30 minutes at 650 DEG  C. before hardening and magnetizing.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also steels which in addition to 1,3-6,5 per cent of chromium, 0,55-1,30 per cent of carbon and 0,25-1,5 per cent of manganese contain 0,5-7 per cent of tungsten or 0,5-2,5 per cent of molybdenum or 0,5-3 per cent of copper or 0,5-3,5 per cent of cobalt or 0,5-2 per cent of nickel or two or more of these metals, the total amount not exceeding 9 per cent.  Vanadium may wholly or partly replace the tungsten, molybdenum, copper, cobalt, or nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-372873-A (GB)
Title: Improvements relating to electric relays
IPC: H01H51/06
Filed: 1931-03-06
Abstract: 372,873. Light current relays. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and FORCEVILLE, E. A., 23, Fossil Road, Lewisham, both in London. March 6, 1931, No. 6994. [Class 38 (v).] A relay has a U-shaped laminated core 23 one limb of which carries the winding 24, the polepieces of the core being bridged by a U-shaped non-magnetic member 4 adapted to fit between the polepieces and provided with projections adapted to clamp the limbs of the cone when the limbs of the member are drawn together, this member also being arranged to carry the pivoted armature. The member 4, Fig. 5, is formed of stamped metal which is bent as shown into a U-formation, the rounded connecting limb being slotted and reduced to provide flexibility. The armature 8 consists of a cross-shaped stamping which is bent at right-angles. The armature is pivotally attached to the member 4 by a phosphor-bronze spring member 15 having two lugs 16, 17 inserted between slots formed between the contact-operating projection 10 of the armature and two lateral bent-over projections 12, 13, a pivot pin (not shown) being inserted through holes in the spring projections 16, 17 and through holes in lugs 6, 7 bent up at the ends of the upper side of the member 4. In assembly the member 4 is passed over the polepieces of the cone and clamped by screws 18, 19 drawing together its upper and lower limbs. When assembled, as shown in Fig. 2, the insulating stud 11 of the armature projection 13 engages the operating spring of a spring contact set 25 and when the coil 24 is energized the crossportion 9 of the armature is attracted towards the pole-faces of the cone. The movement of the armature is adjustably limited by a cam plate 20 slotted at 21 and shaped to pivot around the head of screw 19 before being clamped in its adjusted position, the outer edge of the plate being formed to act as a variable abutment to vary the travel of the armature. The return movement of the armature is limited by a bent-over portion 5 of the plate 4 which may be bent as required. The spring set 25 is secured to the core by a plate 26 which has a bent-over projection 28 which may be employed to secure the relay in position.
Patent GB-236980-A (GB)
Title: Improvements in calorimeters
IPC: G01N25/26
Filed: 1924-03-19
Abstract: 236,980. Scholes, G. E. March 19, 1924. Calorimeters.-In a bomb calorimeter, the closure joint between the shell and the cap is made by means of a ring of rubber &c. interposed between a seating on the shell and a seating on the cap, the joint being effected by the pressure produced within the bomb when gas is admitted and when combustion takes place. In the form shown in Figs. 1, 7 and 12, the shell A is of inverted form and is formed near its lower end with a shoulder a<1>, below which it is externally threaded to receive the cap B. Beyond the threaded part the external diameter of the shell is reduced to form a spigot a<3> extending nearly into contact with the cap. The closure ring C seats between the shoulder a<4> on the shell and a recess b<4> on the cap, the seating surfaces being preferably serrated. The ring C is preferably U- shaped in section, its upper and lower faces being slightly inclined to each other. Before making the joint the interior of the cap is charged with a small quantity of water which seals the end of the spigot and is forced by the pressure within the bomb into the recess containing the ring C. The crucible D is mounted in a ring d' carrying a split sleeve d<2> which can slide on a rod E extending through and insulated from the cap B. The ends of the strip F of fusible material pass through slots in the upper ends of rods E, E<1> and are gripped by sleeves c<2> having bevelled lower edges; the rod E<1> is carried by the cap B. The oxygen for combustion is admitted to the upper end of the shell through a connection G having a bore g' communicating by an oblique bore, a<6> with the shell. Within the member G is a non- return valve g<2> controlled by a spring g<4> and mounted on a stem q<3> at the lower end of which is a freely-mounted bell-shaped member g<7> engaging against a shoulder g<6>. The seating h' for the valve is carried by a union H screwing into the connection G to impart initial compression to the spring g'. A separate valve K is preferably provided for the withdrawal of the products of combustion. The rod E is provided with a plunger e<7> adapted to make electric contact with the water-calorimeter in which the bomb is placed, and the cap is provided with insulated legs I, the water-calorimeter and the fitting H being provided with connections for supplying the current for fusing the strip F. The invention is also applicable to the usual type of calorimeter having the cap B' at the top, Fig. 16, the shell A<1> being formed with a socket a<10> having a recess a<12>. In this form the cap and the shell are provided with spigots b13, a<13> enclosing the recess Q containing the ring C<1>. A tube q<1> conveys water from the base of the shell to the recess Q.