baber/WOPTO huggingface dataset:
Patent GB-711680-A (GB)
Title: Esters of 4-chloro-o-toloxyacetic acid
IPC: C07C69/712
Filed: 1952-07-29
Abstract: The invention comprises esters of 4-chloro-o-toloxyacetic acid of general formula <FORM:0711680/IV (b)/1> wherein n is an integer not greater than 3, and R represents an alkyl or phenyl group, and their preparation by reacting a molecular proportion of 4-chloro-o-toloxyacetic acid with at least a molecular proportion of a mono-etherified propylene glycol of the general formula HO-[-C2H3(CH3)-O-]n.R wherein n and R are as defined above, in the presence of an esterification catalyst.  In examples: (1) 4-chloro-o-toloxyacetic acid, an isomeric mixture of iso-propoxy-propoxy-propanol (chiefly (CH3)2.CH.[-O.CH2.CH(CH3)]2. OH), in ethylene dichloride with concentrated sulphuric acid as catalyst is heated, with continuous distillation of solvent and water, the ethylene dichloride being recycled.  After neutralization and removal of solvent iso-propoxy - propoxy - propyl 4 - chloro - o-toloxyacetate is obtained on distillation. In other examples a methoxy-propoxy-propoxy-propyl-; 11-methoxy-21-propyl-; a butoxy-propoxy-propyl-; a phenoxy-propoxy-propyl-; 11 - butoxy - 21 - propyl-; 11 - phenoxy - 21-propyl-; a butoxy-propoxy-propoxy-propyl-; and a mixture of 11-butoxy-21-propyl-, butoxy-propoxy-propyl- and butoxy-propoxy-propoxy-propyl - 4 - chloro - o - toloxy - phenoxy-acetates are described.  The mono-, di- and tri-propylene glycol mono-ethers required as starting materials are prepared by the reaction of propylene oxide with a monohydric alcohol or phenol in presence of a catalyst. The mixed reaction product may be employed directly or resolved into the individual components.
Patent GB-531480-A (GB)
Title: Improvements in or relating to cutting out presses
IPC: C14B5/00
Filed: 1939-07-01
Abstract: 531,480. Cutting-out presses. BRITISH UNITED SHOE MACHINERY CO., Ltd. July 1, 1939, No. 19188. Convention date, July 2, 1938. Addition to 503,329. [Class 31 (i)] The multiple-strutted construction of the horizontally swinging and vertically operable arm or beam of a cutting-out press according to the parent Specification is modified by forming the main part of the beam as a box-like casting with reinforcing web struts extending lengthwise and widthwise therethrough. The beam 14 is secured by a cap 20 and U-bolts 22, 24 to a column 12 and may be swung over the work supporting bed 16, the column 12 being movable up and down by power to drive a shaped knife through the material on the bed. The main part of the beam is formed of a hollow member terminating at the end in a curved part 26 engaging the column and at the bottom in a flat plate 28 to which the face plate 60 is secured. Longitudinally of the hollow beam extends a central web 30 connecting the flat bottom plates 28 and the convex top plate 39 and two diverging side walls or webs 44, all three of these webs being apertured for lightness. The central web 30 is connected at intervals to the side walls 44 by angularly disposed web struts 64, 66, 68. The convex top plate 39 is divided at its outer end into forked portions 54 providing a space for the handle 56 operating the clutch control mechanism for actuating the downward movement of the column and beam. Specification 22023/05, [Class 31], is referred to.
Patent GB-384349-A (GB)
Title: Improved boxes or containers for gloves
IPC: B65D85/18
Filed: 1931-07-03
Abstract: 384,349. Containersfor gloves. BERG, F., 5, Hills Place, Oxford Circus, London. July 3, 1931, No. 19238. [Classes 18 and 94 (i).] A container for gloves is made from a sheet of transparent or translucent resilient material such as cellulose acetate, a phenol formaldehyde condensation product or casein formed to the shape shown in Fig. 2 or Fig. 4. The container may also be of open-ended rectangular box form and the base or other part may be longitudinally corrugated. Also the base d may be longitudinally scored or corrugated along the middle so that it may be flexed to move the parts f, g apart. The lid may be engaged resiliently within the container.
Patent GB-1107844-A (GB)
Title: Superconducting device
IPC: H01L39/00
Filed: 1965-05-06
Abstract: 1107844 Super-conductor devices; electric conductors AVCO CORPORATION 6 May 1965 [15 May 1964] 19251/65 Headings H1A ,and A4D A composite conductor comprises an elongated super-conductor material disposed in good electrical and thermal contact with a normal metal which has sufficient cross-sectional area to ensure there is not propogation of any localized region of superconductor material which goes normal. Fig. 7 shows a coil construction for producing a strong magnetic field in the centre of copper core 51 upon which is wound conductor 11 which consists of niobiumzirconium or other super-conductor wires embedded in a copper strip, with interleaved insulating material 14. Spacers 56, 57 and plates 61, 62 of linen impregnated with phenolic resin provide space for coolant liquid or gas which contacts the bare edges of conductor 11 so providing for good heat-transfer. The arrangement provides for rapid exhaustion of any gas which may arise from vaporization of the liquid coolant. Axial passages may be provided through the insulator 14 (which may consist in part of conducting material) for passing coolant, and a plurality of windings may be provided. The winding may be saddle shaped. The conductor may consist of a super-conductor embedded in a strip of non-super-conductive material or the whole conductor may be of circular cross-section. The super-conductor wires may be embedded in grooves in the surface of the normal material to be in direct contact with the coolant. The normal material may consist of Al, Cd, Cu, Au, Ag or K and reference is made to heat-treating niobium-zirconium wire at 600C for 30 minutes to increase its critical current. Nb 3 Sn, V3Ga and niobium-titanium alloys are mentioned as superconductors.
Patent GB-1176771-A (GB)
Title: Improvements in or relating to Universal Joints.
IPC: F16D3/227
Filed: 1968-04-24
Abstract: 1,176,771. Universal joints. TOYO BEARING MFG. CO. Ltd. 24 April, 1968 [26 April, 1967], No. 19325/68. Heading F2U. In order to reduce the overall radial dimensions of a constant velocity universal joint of the kind having torque transmitting balls 3 in registering grooves in ball and socket members 1, 2, and in which one of the members is connected by a flange 26 to a flange 23 of a shaft, the coacting. faces 24, 25 of the flanges are conical instead of radial. The joint is particularly suitable for use in front wheel drive vehicles in which the joint is in close proximity to the gear-box or to part of the chassis. The flanges may be toothed to facilitate torque transmission, and one of the flanges may be formed with a locating spigot engaging a counterbore in the other flange. The radially outer ends of the flanges may be radial.
Patent GB-949631-A (GB)
Title: Stabilization of fermentation harvest mash solids containing tetracyclines
IPC: A23K20/195
Filed: 1961-05-30
Abstract: Stabilized dried fermentation harvest mash solids containing a tetracycline antibiotic are produced by adjusting the pH of a fermentation harvest mash containing a tetracycline antibiotic to a pH in the range 0.1-3.0, raising the pH of the acidulated harvest mash to a pH in the range of 8.4-13 and thereafter filtering and drying the harvest mash solids so as to stabilize the dried harvest mash solids against loss in antibiotic potency.  Specified harvest mashes treated are those containing tetracycline, chlortetracycline, oxytetracycline and, demethyl tetracycline and demethyl chlortetracycline, obtained for example by elaboration of a strain of streptomyces aurofaciens or streptomyces Rimosuo. Specified acids for adjusting the pH are hydrochloric or sulphuric acid and specified alkalis are alkali metal and alkaline earth metal hydroxides e.g. sodium hydroxide. Specification 949,632 is referred to.
Patent GB-225260-A (GB)
Title: Improvements relating to compressed-air cold-producing apparatus for cooling-chambers and refrigerators
IPC: F25B9/00
Filed: 1923-07-31
Abstract: 225,260. Nicholson, A. H. July 31, 1923. Refrigerating, cold-air machines and processes for.-Air or other gas is compressed during the inward stroke of a reciprocating piston 2 in a cylinder 1, cooled in closed-ended tubes 7 in a chamber 6 on the cylinder head, expanded in the cylinder on the outward stroke of the piston, and exhausted, through a part 16 uncovered by the piston at the end of its stroke, to a jacket 18 or coils within a refrigerating-chamber or icemaking receptacle 19. The air is drawn into the crank casing through a valve 15 during the inward stroke of the piston, and partially compressed therein during the outward stroke. At the end of the outward stroke a port 13 is uncovered by the piston to admit the partially compressed air from the crank casing, which drives out the expanded and cold air to the refrigerating- chamber. The tubes or ducts 7 may be cooled by water, by atmospheric air, or by the air from the refrigerator jacket. The air or gas may circulate in a closed cycle, the outlet 20 of the refrigerator passage being connected with the crank casing. The piston is preferably domeshaped and the head of the cylinder correspondingly recessed, as shown, to facilitate the discharge of the expanded air and direct the incoming air to the top of the cylinder. According to the Provisional Specification the cylinder head may have cooling gills, and a four-stroke compressor may be used.
Patent GB-835382-A (GB)
Title: Improvements in method and apparatus for balancing pneumatic tires and the article produced thereby
IPC: G01M1/34
Filed: 1958-06-19
Abstract: 835,382. Curing bags for tyre moulds. UNITED STATES RUBBER CO. June 19, 1958 [Oct. 10, 1957], No. 19641/58. Class 87(2). [Also in Group XXXIV] To prevent displacement, during moulding, of the inner liner of a tubeless pneumatic tyre having a balancing strip on its inner tread periphery (aee Group XXXIV) the curing bag 27 has an outer peripheral recess 28 to accommodate the balancing strip.
Patent GB-419273-A (GB)
Title: An improved culinary utensil or vessel for pressure-cooking
IPC: A47J27/08
Filed: 1934-07-04
Abstract: 419,273. Covers for resisting fluid pressure. MORDEN HOME EQUIPMENT (LONDON), Ltd., and LOWE, K. M. W., 20, Holborn, London. July 4, 1934, No. 19711. Convention date, July 26, 1933. [Class 123 (i).] A pressure-cooker 1 is provided with an inturned flange 3, the inner edge of which is defined by curves 4, 5 so shaped that an oval lid 8 can be inserted and then rotated to its sealing position against the underside of the flange 3. The upper side of the lid is provided with dissimilar projections 6A, 7A, which fit into corresponding steps 6, 7 in the rim of the flange 3, so that the cover must always be placed in the same relative position and the gasket above the cover remains tight for a long period. When there is no internal pressure, the cover is held by a crossbar 12 and nut 11, and the cover is also provided with a pressure relief valve and whistle 13 and a fusible plug 15.
Patent GB-775296-A (GB)
Title: Improvements relating to bottle stoppers
Inventor: HASSID MAURICE ALBERT
IPC: B65D39/12
Filed: 1953-07-16
Abstract: 775,296. Expanding plug stopper. BRITISH VACUUM FLASK CO., Ltd., and HASSID, M. A. Oct. 15, 1954 [July 16, 1953], No. 19759/53. Addition to 688,636. Class 125(3). In an expanding plug stopper as described in the parent Specification the disc 7 and spindle 1 are made of a superpolyamide such as nylon and the nut 2 of a formaldehyde condensation product such as melamine formaldehyde.
Patent GB-712251-A (GB)
Title: Production of pile fabrics
Inventor: LANE FREDERICK HENRY
IPC: B05D1/16
Filed: 1951-08-22
Abstract: A composition for securing pile fibres on a fabric comprises a mixture of a vinyl polymer, e.g. polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate and/or vinylidene chloride, a plasticizer which gels the compound on heating, a dehydrating p agent which absorbs moisture at the temperature at which gellation occurs and optionally a heat-stabilizer.  Specified plasticizers are tricresyl phosphate, dibutyl and dioctyl phthalates.  Heat stabilizers mentioned are lead carbonate, and cadmium stearate. The dehydrating agent may be magnesium or calcium oxide, hydraulic cement or plaster of Paris.  Specifications 588,447 and 712,240, [both in Group VIII], are referred to.
Patent GB-1172219-A (GB)
Title: Sheet Forming Apparatus
IPC: B29C51/04
Filed: 1966-10-13
Abstract: 1,172,219. Sheet forming; making 0-rings. A. W. CHESTERTON CO. 13 Oct., 1966 [21 Oct., 1965], No. 19793/69. Divided out of 1,170,766. Heading B5A. A plastics covered 0-ring is made by deep drawing a circular ring of C-shaped crosssection from a thin disc of plastics material, severing the ring from the rest of the disc, inserting the 0-ring within the severed ring, and finally sealing the edges of the severed ring to completely encase the 0-ring. The drawing is effected between a fixed base member 22, having a spring-biased male ring mould 24, and a movable female member 20 having an annular cavity 42 to which a heated pressure fluid can be supplied. In operation, member 20 is lowered to clamp the disc between rings 21 and 29, and rings 41 and 23, after which the disc is heated. Member 20 is then further lowered to draw the disc over the mould 24 and fluid under pressure subsequently supplied to the cavity 42 to apply the sheet tightly over the enlarged head of the mould, the pressure being sufficient to force the mould downwardly against the action of springs 34. The member 20 is finally withdrawn and the formed sheet, supported by the mould 24, removed for the subsequent covering operation. The severing is effected by drawing the sheet, whilst supported on the mould, between a pair of rotating cutting rolls 62 and 64 which engage either side of the drawn ring 15. The wheels are provided with cutting knives 63 and 65, respectively, the wheel 62 being mounted upon a fixed table 60 through a gear 67 and the wheel 64 being mounted upon a lever 61 pivotable to move the wheel into and out of engagement with ring 15. The wheel 64 is driven, in its operative position, by means of a second gear 67 which engages that of wheel 62. The severed ring is subseqnently removed from the mould, the 0-ring inserted into it and the whole transferred to a sealing device. The sealing is effected by locating the sheathed 0-ring within a cavity formed between members 72, 68; 71 and 71<SP>1</SP> (see Fig. 17) and welding the overlapping edges of the ring 15 using a heated upper member having an annular pressing ring 75. The edges of the ring 15 are cut in such a way that when they are overlapped and sealed the outer sheath formed by ring 15 is smooth surfaced and perfectly round (see Figs. 18 and 19, not shown). Reference has been directed by the Comptroller to Specification 1,103,979.
Patent GB-670665-A (GB)
Title: Improvements in or relating to compressors and turbines
Inventor: DREW DENIS ARTHUR
IPC: F01D5/22
Filed: 1949-07-28
Abstract: 670,665. Axial-flow compressors and turbines. ROLLS-ROYCE, Ltd., July 12, 1950. [July 28, 1949] No. 19913/49. Classes 110(i) and 110(iii). Each rotor blade 10 has, towards its root end, a platform 10b which forms, together with the platforms of the other blades, a substantially continuous annular wall, relative vibration between the platforms being frictionally damped by metal pads 14, each of which is pressed by centrifugal force against adjacent platforms. Each pad 14 is retained axially by the engagement of a flange 14a between the associated platforms 10b and an interstage spacer ring 12, and retained radially by engagement with an annular shoulder 15, but with sufficient freedom of movement to allow it to bear against the platforms under the action of centrifugal force. To permit relative movement, adjacent platforms 10b are slightly spaced apart, and each platform is joined to a fir-tree root 10c by a flexible stem 10d. If, however, the blades are pivotally attached to the rotor disc 11, as by means of a pin, the flexible stems may be shortened or eliminated. To prevent adjacent blades from vibrating in unison their flexible stems may be of differing crosssection. According to the Provisional Specification, platforms may be provided at the blade tips or between the tips and the roots, in which case the pads 14 can be formed with retaining tags which are bent over to engage the radially outer side.
Patent GB-232098-A (GB)
Title: Locking device for motor-cars, motor-cycles and cycles for prevention of theft
IPC: B60R25/022
Filed: 1924-08-25
Abstract: 232,098. Partridge, 'W. Aug. 25, 1924. Guarding against unauthorized use.-Two concentric tubes connected respectively to the steering hand-wheel and to the steering-gear are connected so as to turn together only when a key has been inserted through shaped slots in the tubes and has been rotated into a position in which it locks the two together. The key also operates a switch controlling the ignition. The hand-wheel is fixed to a sleeve a carried on the upper end of the tubular steering column b, relative endwise movement being prevented by a disc d fixed to the column b and disposed between the boss of the hand-wheel and a bracket c<1> fixed to the boss. The key g is inserted through correspondingly shaped slots g, k in the cover tube p and in the tube a and also through a wider slot with serrated edges in the inner tube b. It is then turned through a right-angle until projections enter slots h in the tubes a, b and lock them together. When the key is turned, the slots h are covered by small shutters n which slide into the obscuring position under the action of springs. This tends to prevent locking of the apparatus by a bent wire inserted through the keyhole.
Patent GB-370281-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H01F21/02
Filed: 1931-07-14
Abstract: 370,281. Wireless receiving apparatus. BURTON, C. F., Progress Works, Bernard Street, Walsall. July 14, 1931, No. 20179. [Class 40 (v).] In an inductance having two or more windings, separate variable condensers for each of the windings and connected in parallel therewith, are built into the body of the inductance. An application of the principle consists of medium and long wave windings 5, 8 wound in grooves in a former 1, and having separate " trimming " condensers composed of moving plates 13, 14, and a common fixed plate 11, secured to the former by screws 15, 12 respectively. The fixed plate is insulated from the moving plates by a mica covering 16, and the latter are operated by screws 18 passing through threaded holes 2 in the ebonite former, and clearance holes 23 in the fixed plate. Connections are made so that one condenser is across the medium-wave coil, and the other is either across the long-wave coil alone or both in series.
Patent GB-1202180-A (GB)
Title: Sealing means between two cylindrical surfaces
Inventor: CROSS ROLAND CLAUDE
IPC: F16J15/02
Filed: 1969-04-21
Abstract: 1,202,180. Joint-making packing. CROSS MFG. CO. (1938) Ltd. 21 April, 1969, No. 20205/69. Heading F2B. A seal between two coaxial surfaces as in an expansion joint comprises a springy split ring 14 having a circular cross-section of larger diameter than the depth of its groove 13, and a conical surface 17 forming with the groove a gradually reducing space into which the split ring is forced by a spring device 15. As shown, the spring device 15 consists of a number of spring-fingers each having one end 15a secured to the split ring and one end engaging an undercut formed by a lip 16. In another embodiment, the spring device is separate from the split ring and formed of a row of spring-fingers riveted each side of a spring ring, the row on one side engaging the split ring 14 while the row on the opposite side engages the undercut in the groove.
Patent GB-755790-A (GB)
Title: Improvements relating to ignition distributors embodying a contact breaker device
IPC: F02P7/063
Filed: 1954-07-12
Abstract: 755,790. Interrupters. GENERAL MOTORS CORPORATION. July 12, 1954 [July 29, 1953], No. 20299/54. Class 38(5) A contact-breaker combined with an ignitiondistributer has its fixed contact adjustable from outside the casing without removing the cap. The fixed contact 50 is carried by a support 44 pivoted at 46 and co-operates with a movable contact 58 on a spring-biased arm 54 also pivoted at 46. The support 44 carries a bifurcated post 66 co-operating with a threaded rod 70 to form a swivel connection. The rod 70 is threaded through a post 68 on a mounting plate 35 and extends to the outside of the casing where it carries a knob 76 co-operating with a pointer 78. The movement of the contact 50 and its support 44 is limited by a pin- and-slot 48, 49. The rod 70 is locked in adjusted position by splitting the post 68 and misaligning the threads or squeezing the posts together; a spring may alternatively surround the rod 70 between posts 66, 68. In a modification (Figs. 3, not shown), the knob 78 is removed and the rod 70 ends within the casing with a screwdriver slot accessible through a slot in the casing.
Patent GB-1085691-A (GB)
Title: Improvements in and relating to the vacuum-tight mounting of removable current and voltage supply conductors
IPC: H01B17/30
Filed: 1966-05-09
Abstract: 1,085,691. Carrrying conductors through partitions. BALZERS PATENT-UND LIZENZANSTALT. May 9, 1966 [July 16, 1965], No. 20353/66. Heading H2E. Conductor 2 is located by sleeve 3 and insulating guide rings 15, 16 in an aperture in the wall 1 of a vacuum chamber, the sleeve being secured either by shoulder 4 and clip-bearing connection 5, or by shoulder 4, nut 8 and washer 9. Vacuum-tightness is maintained by seals 6 and 11 and insulating insert 13 in nut 12 compresses seal 11 and forces it against conductor 2. Conductor 2 may be replaced, moved axially or rotated by loosening the cap nut 12 or attachment nut 8, moving it and re-tightening.
Patent GB-1132685-A (GB)
Title: Improvements in or relating to hydraulically or pneumatically operated rotary drive systems
IPC: F15B15/08
Filed: 1967-05-03
Abstract: 1,132,685. Toothed gearing. H. POST. 3 May, 1967 [4 May, 1966], No. 20514/67. Heading F2Q. [Also in Division F1] A fluid pressure rotary actuator comprises an output shaft 8 rotatably mounted in an endplate 10 closing one end of a cylinder 2, the shaft being driven by a piston 1 slidable and rotatable in the cylinder 2 in response to fluid pressure acting on one or other side thereof, the motion of the piston being transmitted to the shaft by means of externally threaded stub extensions 3 on the piston and which engage in complementary internal threads 6, 7 in an end-plate 9 closing the other end of the cylinder, and in the shaft 8. The threads 4, 15 on the stub shafts 3 are of opposite hand. A collar 12 secured by screws to the end-plate 10 provides an abutment for a flange on the shaft 8 to prevent axial movement of the shaft.
Patent GB-184995-A (GB)
Title: Improvements in the manufacture of signal arms
IPC: B61L5/14
Filed: 1921-08-02
Abstract: 184,995. Wardle, E., Tunnicliffe, H. E., Jones, B. R., and Hayes, H. Aug. 2, 1921. Visual outdoor signals.-Metal signal arms are protected against corrosion and rust by galvanizing, japanning, stoving, and varnishing.
Patent GB-599494-A (GB)
Title: Improvements relating to toilet powder containers
IPC: A45D40/22
Filed: 1944-10-24
Abstract: 599,494. Toilet powder containers. MEYER (LONDON), Ltd., A., and MEYER, A. Oct. 24, 1944, No. 20669. [Class 18] A toilet powder container is constructed from two metal frames a rigid with which are hinge plates b with stepped edges c which can be connected by a hinge pin, a paper backing e being secured by adhesive over each frame, and this and the frames being covered by a leather, imitation leather &c. outer cover f. A sliding clasp fastener g closes the container. A paper or metal pan h is secured to one side and a backing i to receive a mirror to the other side.