baber/WOPTO huggingface dataset:
Patent GB-1189393-A (GB)
Title: Orientated Synthetic Filaments and their production
IPC: D01F6/60
Filed: 1968-06-12
Abstract: 1,189,393. Orientated synthetic filaments. SOC. RHODIACETA. 12 June, 1968 [16 June, 1967], No. 28013/68. Heading B5B. Orientated synthetic filaments are produced in a continuous series of operations wherein continuous filaments are extruded from a molten mass of linear synthetic polymer and are (a) cooled to a temperature of T 1 , which is above 50‹ C., and at least 5‹ C. above the second order transition temperature of the polymer, but not greater than the initial orientation temperature, (b) positively forwarded at a speed V 1  higher than the extrusion speed, (c) brought to a temperature T 2  which is between T 1  and ambient temperature and (d) positively forwarded at a speed V 2  which is greater than V 1 . The process can be applied to condensation polymers such as polyamides and copolyamides obtained by condensation of diacids and diamines, e.g. polyhexamethylene adipamide, or aminoacids, e.g. polyundecanamide, or by polymerization of lactams, e.g. polycapronamide and polyesters such as polyethylene terephthalate and copolyesters comprising at least 75% of ethylene terephthalate units in the chain. The apparatus shown comprises a spinneret, a yarn supply system comprising driven rolls 1 and 2, a driven stretching roll 3 with an associated idler roll 4, an applicator roll 5 which contacts the filaments as they pass between rolls 3 and 4 and transfers a finish to them from the bath, guide rolls and a winding up station.
Patent GB-391690-A (GB)
Title: Improvements in heatable shoe-stretchers or boot-trees
IPC: A43D3/14
Filed: 1932-10-07
Abstract: 391,690. Boot &c. stretchers. KIESL, J., 18, Blindengasse, Vienna. Oct. 7, 1932, No. 28016. [Class 17 (iii).] A shoe-stretcher or boot-tree is provided on the underside of the forepart with clips to hold detachably a cartridge filled with substances adapted to generate heat by chemical reaction. The cartridge f is preferably secured by spring clips e on the centre line of the toe part a in such manner as to be slipped into place when the tree is in position. The cart. ridge comprises a metal container into which is inserted a mixture such as charcoal and an oxidizing agent bound together, if desired, by a paste. The outside of the cartridge may be provided with layers of insulating material or gas chambers to prevent too rapid dissipation of the heat generated.
Patent GB-521840-A (GB)
Title: Improvements in machines for moulding plastic material by injection
IPC: B29C45/70
Filed: 1938-09-26
Abstract: 521,840. Injection moulding. ERNST, W., and LAWYER, I. B. Sept. 26, 1938, No. 28036. [Class 87 (ii)] In a machine for moulding plastic materials by injection, the die part 29 is moved, hydraulically, towards and away from the die part 30 which is associated with. hydraulic piston rods 43 which abut against cushioning pistons 52 but are not secured thereto. The hydraulic means for the die part 29 are arranged to give a rapid initial advance towards the part 30, followed by a slower pressure movement to close the dies. 'The rapid advance is effected by the admission of fluid through the passages 150, 151 in the bore 22 of the main piston 21, the advance of the piston 21 drawing fluid from the tank 161 through the pipe 160 and non-return valve 159 into the space behind the head of the piston. This space is supplied with fluid, for the pressure closure of the dies, through a passage 156. Stops 25 limit the outward movement of the piston. The shock of contact of the die parts is cushioned firstly by the hydraulic piston rods 43 and finally by the pistons 52, fluid being admitted through the ports 55 behind the pistons, the pressure of the die part 30 against the injection nozzle,76 being thus reduced. The material is supplied in granulated form to the chamber 70 and the charge is forced by the hydraulic ram 67 past the diverting member 74 and through the nozzle 76, the end of which is formed to correspond with'the inlet socket 40 of the die parts 30. Fins 80 arranged within a lagged jacket 81, heated, for example, by hot oil, conduct heat to the pressure chamber and nozzle. The heated part is insulated by a disc 87 from a part cooled by a jacket 90, the cooling preventing premature softening of the material. The main pressure is supplied to the hydraulic system by a pump 169, the pump 166 being intended to replace leakage past the piston 21 when the pump 169 is prevented temporarily by check valves from doing so. The moulded article is ejected from the mould, on retraction of the die part 29, by pins 34 on a transverse bar 32 on sliding rods 35 which contact with a stationary member 11. Specification 521,889 is referred to.
Patent GB-1165842-A (GB)
Title: Improvements in and relating to Injection Appliances for Contrast Agents for Medical Use
IPC: A61M5/145
Filed: 1967-06-19
Abstract: 1,165,842. Injection apparatus. CONTRAVES A.G. 19 June, 1967 [30 June, 1966], No. 28117/67. Heading A5R. {Also in Divisions F1 and H5] A medical injection apparatus, for injecting an X-ray contrast agent into a patient, comprises an injection cylinder which in operation is connected to the patient, an injection piston movable in the cylinder, a continuously operating prime mover, adjustable transmission means capable of imparting movement from the prime mover to the piston at a selected rate, quick-action switch means capable of rapidly establishing and interrupting the transmission of movement 'from 'the prime mover to the injection piston, and electric signal means controlling the switch means. In Fig. 3, the heart functions of the patient are continuously monitored on a cardiogram display screen I and a signal therefrom is used to energise a solenoid N 20  which operates a clutch mechanism whereby the continuously running motor N 1  (whose speed of rotation may be adjusted by means of potentiometer N 122 ) advances the piston C 1  in the injection cylinder C, thereby injecting contrast agent into the patient. The arrangement is such that, after a predetermined amount of the contrast agent has been injected into the patient, a signal switches on the photographic appliance G so that, with .the aid of the X-ray source F, an X-ray photograph of the patient is taken. In an alternative construction (Fig. 6, not shown) the signal from the cardiogram is used to energise a solenoid (42) which controls a twoway valve (420) so that hydraulic fluid supplied by continuously operating hydraulic pump (35) may be used to move piston C 1  in its cylinder C.
Patent GB-345644-A (GB)
IPC: H01L25/07
Filed: 1929-09-18
Abstract: 345,644. Static contact rectifiers. PATENT TREUHAND GES. FœR ELEKTRISCHE GLUHLAMPEN, 11, Ehrenbergstrasse, Berlin. Sept. 18, 1929, No. 28313. Convention date, Dec. 21, 1928. Void [Published under Sect. 91 of the Acts]. [Class 37.] Static contact rectifier units a<1> .. d<1>, a<2> .. d2, a3 .. d3 are connected in parallel between heat dissipating plates k<1> .. k<5>. Distance pieces may be located between common cooling plates.
Patent GB-504349-A (GB)
Title: Improvements in the low temperature carbonisation of distillation of residues containing oil and asphalt
IPC: C10B55/04
Filed: 1937-10-19
Abstract: 504,349. Carbonizing asphalt material. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Oct. 19, 1937, No. 28465. [Class 55 (i)] [Also in Group III] Oily residues such as are obtained in the destructive hydrogenation of coal, tar, or mineral oil are subjected to lowtemperature carboniza-, tion in a rotating drum containing hollow sharpedged filler bodies. As shown, the fillers are tubes with opposite ends flattened in planes at right angles. The hollow fillers may have reinforcing inserts, e.g. of iron, or they may be wholly or partly filled with lighter substances, e.g. sand, ceramic material, coke, or residues from the process. Bodies of different size and shape may be used in different compartments of the same drum.
Patent GB-1029020-A (GB)
Title: Improvements in or relating to height adjustment means for chairs and/or chairs incorporating said height adjustment means
IPC: A47C3/28
Filed: 1964-07-10
Abstract: 1,029,020. Adjustable seats. PETONE ENGINEERING CO. Ltd. July 10, 1964 [July 19, 1963], No. 28525/64. Heading A4J. The height of a chair seat is adjusted by a threaded column 1 rotating in a nut 2, the seat being carried on a plate 4 having a thrust bearing washer 9 to rotatably support the seat, the plate 4 being mounted on a shaft 3 provided with pins 14 which when the seat is unoccupied, Fig. 1, connect the shaft 3 to the threaded column 1 so that upon rotation of the chair seat the threaded column 1 rotates in the nut 2 and adjusts the height of the seat but when the seat is occupied, Fig. 2 (not shown), the pins 14 disengage from grooves 15 in the column 1 to allow the chair seat to rotate upon the bearing washer 9 without driving the threaded column 1. Biasing springs 22, 10 are provided to urge the pins 14 into engagement with grooves 15 in column 1 when the seat is unoccupied.
Patent GB-505883-A (GB)
Title: Improvements in lead presses
IPC: B21C25/06
Filed: 1938-10-01
Abstract: 505,883. Squirting. COMPAGNIE GENERALE D'ELECTRICITE, and JUST, J. C. Oct. 1, 1938, No. 28539. [Class 83 (iv)] In a lead extrusion apparatus of the type operated by a ram or piston 1, the space between the die holder 4 and the press block 9 for the flow of metal, is in the form of helicoidal passages which open into an annular chamber between the die 6 and the matrix 7. The passages may be formed by helicoidal projections 8 in the die holder, by helicoidal channels within the bore of the press block or by both projections and channels.
Patent GB-242458-A (GB)
Title: Improvement connected with lawn mowers
IPC: A01D34/42
Filed: 1924-11-28
Abstract: 242,458. Page, R. Nov. 28, 1924. Lawn-mowers.-A fan and hood are provided to throw and direct the cut grass well into the collecting-box. The fan A is mounted above and in front of the rotary cutter, being carried by pillars C connected to the brackets D supporting the front rollers E. It is driven by belt or chain gearing from the cutter spindle J. The hood M has side wings N and extends from the back of the rotary cutter B to above the fan A. The grass box P and front rollers E may be larger than usual.
Patent GB-192164-A (GB)
Title: Improvements in means for securing rubber to other materials
IPC: C08J5/12
Filed: 1921-10-27
Abstract: 192,164. Sheppard, S. R. Oct. 27, 1921. India-rubber, attaching to other articles; vulcanizing by cold methods.-Unvulcanized rubber is attached to leather or other material by coating one or both of the surfaces to be joined with a rubber solution containing a vulcanizing-agent dissolved in a volatile non-inflammable medium, and pressing the surfaces together. A suitable solution is that described in Specification 192,163 consisting of 2 lbs. of rubber dissolved in 6 gals. of carbon tetrachloride or liquid acetylene chloride, to which is added 10 c.c. of sulphur coloride dissolved in 1000 c.c. of acetone and 1200 c.c. of amyl acetate.
Patent GB-1493115-A (GB)
Title: Process for producing video discs
IPC: B29D17/00
Filed: 1974-10-15
Abstract: 1493115 Video disc mould MCA DISCOVISION Inc 15 Oct 1974 [15 Oct 1973] 28633/77 Divided out of 1493113 Heading B5A A video record disc is produced from a matrix 22, Fig. 2, having recorded signals represented as surface deformities 24 arranged in a circular or spiral track, by preparing an elastomeric mould 10, Fig. 1, of the matrix 22 and casting a replica in this mould.
Patent GB-143490-A (GB)
Title: New system of safety stylographic pen without any internal screw
IPC: B43K23/12
Filed: 1919-11-19
Abstract: 143,490. Leoncini, C. May 22, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Reservoir pens.-In a fountain pen of the safety type, the nib is returned into the barrel or ejected into working position by means of a pin carried by the cap. The nib e, Fig. 3, is fixed by a ring i to a rod d which extends through the barrel a into a hole k in a screwed end-piece c. The cap b has an attached top f provided with a pin g which registers with a slot h, Fig. 9, in the rod d to push the nib into the barrel, or with the end of the rod in the hole k in the endpiece c to eject the nib. To prevent the escape of ink through the channel k, a washer l of cork, rubber. or the like is inserted in the end of the piece c and held in position by a screw ring m.
Patent GB-933894-A (GB)
Title: Drive arrangements for magnetic core memory devices
IPC: H03K17/70
Filed: 1961-08-09
Abstract: 933,894. Circuits employing bi-stable magnetic elements. AMP Inc. Aug. 9, 1961 [Aug. 26, 1960], No. 28758/61. Class 40 (9). [Also in Group XL (c)] In a shifting register in which part of the flux of a multiapertured core is switched by a priming winding prior to transferring the remanent state to a succeeding core, as described in Specification 899,367, the priming winding 18, Fig. 1, is energized during the charging of a condenser 32 and the condenser discharge current is applied to an advance winding 14 or 16 to effect the transfer operation. The charging current for condenser 32 is applied from a battery 28 over a slightly damped resonant circuit comprising condenser 24, resistor 26 and inductors 20, 30. When a negative pulse is applied over a capacitor 44 or 54 to a four-layer diode switch 40 or 50, the condenser 32 discharges through a selected advance winding 14 or 16 and causes transfer of a remanent core state to the next stage, the advance windings being energized alternately. By providing inductor 30 the condenser 32 is arranged to discharge with resonance. Rectifiers 42, 52 and 22 are provided for isolating purposes during the two phases of operation. In an alternative circuit, Fig. 3, a condenser 104 is charged through the priming winding 18 from a battery 106, and the charging circuit is interrupted by biasing a transistor 102 each time a positive pulse on a lead 112 or 114 enables the condenser to discharge through an advance winding 14 or 16. The pulses on leads are alternate, and are applied from a transistor multivibrator which is driven from a pulse source 118 and controls the four-layer diode switches 108, 110. Specification 899,366 also is referred to.
Patent GB-664582-A (GB)
Title: Improvements in cooling-radiators and the manufacture thereof
IPC: B21D53/02
Filed: 1949-11-10
Abstract: 664,582. Making gifted tubes for heatexchange apparatus. SOC. ANON. DES USINES CHAUSSON. Nov. 10, 1949 [July 1, 1949], No. 28847/49. Classes 83 (ii) and 83 (iv). [Also in Group XIII] Punches and dies.-In a radiator for heatexchange apparatus fin-plates 24 strung on tubes 23 are provided with cut and bent lugs 21a which serve as spacing and heat transmitting members between the plates. Straight lugs 19 join the lugs 21a. A punch and die assembly for forming the lugs comprises chamfered bending-cutters 8 on a plate 2 engaging dies on a plate 11. A spring-mounted stripper 3 is fitted.
Patent GB-406951-A (GB)
Title: Improvements in and relating to cores for dynamo electric machines and methods of making the same
IPC: H02K1/16
Filed: 1933-10-18
Abstract: 406,951. Making cores for dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Underwood, L. E. ; Pittsfield, Massachusetts, U.S.A.) Oct. 18, 1933, No. 28850. Convention date, Oct. 26, 1932. [Class 83 (ii).] A core for a dynamo-electric machine is formed from a strip 4 by a continuous process comprising punching slots in the margin of the strip by an intermittently operating punch 5 and coiling the strip edgewise on a mandrel 11 by tapered rollers 8. A weighted tension roller 17 is fitted.
Patent GB-839619-A (GB)
Title: Process for the preparation of substantially oil-free petroleum wax compositions
IPC: C10G73/06
Filed: 1958-09-09
Abstract: A process for preparing a substantially oil-free petroleum wax composition from a wax petroleum oil comprises the following steps: (i) solvent de-waxing the oil to give a substantially wax-free oil and a slack wax; (ii) solvent de-oiling a portion of the slack wax to give a substantially oil-free wax and an oily soft wax; (iii) mixing the oily soft wax with another portion of the slack wax and solvent de-oiling the mixture to give a substantially oil-free wax composition of which the components derived from the soft wax boil substantially within the boiling range of the components derived from the slack wax.  The oil may be a distillate fraction, e.g. a 650 DEG to 950 DEG  F. lube oil distillate or a residuum.  De-waxing and de-oiling solvents mentioned are C8 and lower ketones, alcohols and hydrocarbons; petroleum naphthas; and halogenated hydrocarbons, several examples being given.  1 to 5 volumes of solvent may be used for de-waxing at - 15 DEG  to + 15 DEG  F. for polar solvents and - 48 DEG  to 8 DEG  F. for lower alkanes, e.g. propane.  2 to 7 volumes of solvent may be used for de-oiling at 32 DEG  to 65 DEG  F.  The oil may be de-aromatized and de-asphalted, if required, before de-waxing.  In examples, a 430-523 DEG  C. lube oil distillate is de-waxed with a 50/50 mixture of M.E.K. and toluene.  A portion of the slack wax is de-oiled with the same solvent at 35 DEG  or 15 DEG F. and filtered to give a 135 DEG -140 DEG  F. paraffin wax and an oily soft wax.  The properties of wax obtained by combining the soft wax and slack wax in proportions of 1, 3 and 5 to 4 and de-oiling with the same solvent at the same temperature is tabulated.  The resulting compositions are useful as coating compositions in view of their flexibility, e.g. for application to bread wrappers, frozen food wrappers and cardboard cartons for holding cold liquids. Specification 806,716 is referred to.
Patent GB-854894-A (GB)
Title: Improvements in or relating to power-assisted steering gear for vehicles
Inventor: HEACOCK FREDERICK HENRY
IPC: B62D5/24
Filed: 1958-09-09
Abstract: 854,894. Vehicle power steering. CLAYTON DEWANDRE CO. Ltd. Sept. 3, 1959 [Sept. 9, 1958], No. 28877/58. Class 79(5). A power-assisted steering gear for vehicles comprises a steering box housing 1, a pitman arm shaft 20 extending transversely across the housing, a power cylinder 4 and control valve assembly pivotally mounted within the housing, and means 22 in the housing for transmitting the output of the cylinder 4 to the shaft 20. The steering shaft 3 actuates a sleeve 26 through a worm 24 or a recirculating ball or other gear, the' sleeve being connected to a spool valve 8 by a lever 28 and a pivot 30. When the valve is displaced from its central position in which it is held by a spring 9 and an abutment, fluid from an external pump passes through a fitting 17 having a pressure-relief valve, a flexible conduit (not shown) and ports in the valve itself to one side of the cylinder 4, the other side of which discharges through the valve into the housing 1. The consequent movement of the cylinder rocks the shaft 20 through a lever 22 until the valve is again in a central or neutral position with respect to its housing to hold the wheels on the set lock. The housing 1 is connected to the inlet of the external pump to form a constant flow system. A plunger 31 and a face 35 on the valve 8 are subject to fluid pressure during steering movements to provide "feel". The lever 28 is pivoted at 29 on the lever 22 and encircles with clearance a pin 23 carried by the cylinder 4 so that the latter may be manually actuated in the event of a hydraulic failure.
Patent GB-173628-A (GB)
Title: An improved sign writing device for advertising and like purposes
IPC: G09F19/06
Filed: 1920-10-12
Abstract: 173,628. Chate, R. V. Oct. 12, 1920. Writing-machines, script or autopraphic. - Relates to advertising or like devices for mechanically writing words or phrases or drawing designs, of the type in which scribing means ccnnected to the end of a scribing-bar is moved by a system of levers connected to the scribing- bar and effecting contact with a pair of rotatable cams. According to the invention, the cams 20. 21, act upon a pair of arms 12, 13 connected directly to the scribing-bar 9. The arm 12, which controls the horizontal motion of the scriber 8, is pivoted at 15 to a spring-retracted swinging link 14, and the arm 13 is pivoted about a fixed point 17, each arm 12, 13 being pivotally connected to the scribing-bar 9. A transverse rod 24 steadies the bar 9,and holds the scriber 8 in contact with the writing surface. The writing surface may be a paper or like strip 2 mounted on a roller 3 and brought through slots 4, 5 over the front of a board 1 and between friction rollers 6, which may be intermittently operated from the cam-shaft. Alternatively, a slate, blackboard, or like surface may be provided, and a rubber or other erasing-device may be automatically actuated by a special cam surface on the cam shaft for cleaning the surface on the completion of each word or design.
Patent GB-1263659-A (GB)
Title: A method of splicing pressure sensitive adhesive stock
Inventor: MIRO FRANK
IPC: G09F3/02
Filed: 1970-06-15
Abstract: 1,263,659. Making labels. LITTON BUSINESS SYSTEMS Inc. 15 June, 1970 [18 June, 1969], No. 28979/70. Heading B8F. [Also in Division B5] Pressure-sensitive label stock 1 having a layer 3 of material coated with a pressure-sensitive adhesive 4 releasably securing the layer 3 to a backing 5 is spliced by positioning an insert member 9 between the adhesive coating 4 and the backing 5 of the two pieces 1A, 1B to be joined across the full width thereof and applying splicing tape 8 having a pressurosensitive adhesive coating thereon to the faces of the backing 5 of the pieces 1A, 1B so that the splicing adhesive adheres to the insert 9 and the backings 5, the insert 9 adhering to the coatings 4 of the layers 3 of the pieces 1A, 1B so that the layers can be stripped in one piece from the backings which are joined by the tape 8. As shown, a second splicing tape 7 coated with pressure-sensitive adhesive is adhered to the layers 3 and the insert 9. Previously, the pieces 1A, 1B may have been cut at an inclined angle relative to the edges. The layer 3 may comprise fabric, plastics material or paper and the backing 5 may be kraft paper. A layer of release material 6, e.g. nitrocellulose, cellulose triacetate or silicone, weakly unites the adhesive 4 to the backing 5. The insert 9 comprises a strippable film 15 adhered to a paper or plastics layer 18 with a release layer 17, e.g. nitrocellulose, cellulose triacetate or silicone, therebetween. The film 15 may be metallized or coloured and may be made of polystyrene, polyvinyl alcohol, polyvinyl acetate, ethyl cellulose, cellulose acetate, cellulose acetate butyrate or polyethylene. The stock 1 is printed and die-cut as at 12,. Fig. 2, the cut extending through the layers 3 and the adhesive 4 but not through the backing 5. The unused portions of the layer 3 are stripped off, Fig. 3, leaving a series of labels 13 adhered to the backing 5. In a modification, Fig. 5 (not shown), the strippable film is omitted and the insert comprises two metal foil, paper or plastics layers. In another modification (also not shown), the insert comprises a single silicone coated sheet.