baber/WOPTO huggingface dataset:
Patent GB-1388783-A (GB)
Title: Method and apparatus for determining carbon dioxide content of blood samples
IPC: G01N33/49
Filed: 1973-02-20
Abstract: 1388783 Determination of CO 2  in blood AMERICAN HOSPITAL SUPPLY CORP 20Feb 1973 [22Feb 1972] 8278/73 Heading G1B The carbon dioxide content of a blood sample is measured using apparatus Fig. 1 comprising gas-tight syringe 1 having transparent barrel 2  with graduation markings, and slidable plunger 3, vial 6 for containing a measured volume of blood, and threaded or clamp means releasably coupling the syringe and the vial, the test being carried out by taking a quantity of acid, for example lactic acid into the syringe, coupling the syringe and vial, depressing the plunger to add the acid to the blood sample, shaking the coupled assembly and allowing the plunger to rise under the pressure of the carbon dioxide released in the vial. The coupling means may be clamp means 10 having spring loaded jaws 11, 12 which bear on flange 5 of the syringe and flange 6a of the vial, or the coupling means may comprise screw threads formed on the lower end of the syringe barrel and on the vial.
Patent GB-107617-A (GB)
Title: Improvements in Guns having a Plurality of Gun Barrels.
Inventor: SAMAIA DINO
IPC: F41F1/06
Filed: 1916-06-13
Abstract: 107,617. Samaia, D. June 13, 1916. Chambers; ordnance, built-up; design; breech mechanism.-Relates to guns having several barrels, each with a separate explosion chamber, and wherein the charges in the chambers are adapted to be ignited simultaneously. According to the invention, the chambers are connected by passages, so that the pressures are immediately equalized when the charges are exploded. A projectile having a number of tail-pieces 19 equal to the number of barrels, such as the double-tailed projectile shown in Fig. 4, may be fired from the gun, or a number of independent single-tailed projectiles may be discharged simultaneously. Where a single projectile is used, it may have a hole therethrough, so as to be guided by a central rod fixed between the barrels. The ignition of the propellant charges may be effected from a single touch-hole communicating with all the chambers. Figs. 5 and 6 show a gun having four barrels 20. screwed into a common breech-piece 21. The chambers 22 are all connected by passages 23, and ignition of the charges is effected by means of devices 26, 27 operated by a lanyard 28 connected to levers 29.
Patent GB-638554-A (GB)
Title: Improvements relating to equipment for reproducing outlines by photo-electric means
IPC: B23K7/00
Filed: 1947-03-27
Abstract: 638,554. Dividing by fusion. McMULLEN, J. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. March 27, 1947, No. 8367. [Class 83 (iv)] [Also in Groups XXXVIII and XL (b)] A photo-electric tracer, to which a flame cutter is coupled by means of a pantograph and which follows automatically the border line between two colours of different light reflecting properties forming a pattern, has its speed reduced if the rate of turn becomes excessive, as for example at the corner of a pattern. As shown in Fig. 1, the tracer comprises a carriage 1 on which is mounted a driving motor 8, causing continuous rotation of a driving wheel 7, and a steering motor 2 which rotates the axis of the driving wheel through gears 3, 4, 5, 6. A small spot of light is projected on to the pattern 11 and is reflected to a photocell 13 also carried by the carriage 1. The output of the photo cell is fed through an amplifier, a phase discriminating rectifier, and a power output stage to the field windings of a servo generator supplying direct current in one direction or the other to the steering motor. The direction of rotation of the steering motor is accordingly dependent on the colour of the area being " looked at " by the photo cell so that the tracer tends to travel over the junction of the two colours. A generator driven by the steering motor has its output fed to the phase discriminator to render the movement of the steering motor dead beat. The circuit arrangement for the driving motor is shown in Fig. 4. The armature 22 of the driving motor is fed from a D.C. source compounded with the output of a generator 24 itself driven by armature 22. A relay 26 operated by the output of the generator driven by the steering motor is arranged to short circuit the D.C. supply and hence slow the driving motor if the turning rate becomes excessive. This ensures that the apparatus follows sharp corners of the pattern correctly. A timing circuit 28, 29 ensures that the apparatus restarts gently and does not run in the wrong direction when relay 26 comes out. A rotating shutter may be mounted between the lamp and the photo-cell or the lamp may be fed through a half-wave rectifier so that its brilliancy fluctuates at mains frequency.
Patent GB-154238-A (GB)
Title: Improvements in burners for liquid or gaseous fuel
IPC: F23D11/10
Filed: 1918-11-21
Abstract: 154,238. Kermode, J. J. Nov. 21, 1918. Spray and blowpipe burners.-In a burner for liquid or gaseous fuel, the fuel is supplied through a passage C' to the central bore b<5> of an inner barrel B, the flow being regulated by a valve C on a spindle c<4> which is rotated by a hand-wheel c' arranged to enclose and protect the gland employed for packing the spindle. The valve spindle is prolonged in the form of a twisted strip c<6> which imparts a whirling motion to the fuel. Surrounding the barrel B is a casing A provided with the main inlet D through which air passes to the annular space a<1> between the barrel and the casing, a port D' in the barrel allowing a portion of the air to pass into the central fuel passage. Mounted on the end of the barrel is a detachable sleeve b<6> carrying helical blades b<4> which impart to the air a whirling motion opposite in direction to that of the fuel. On the end of the sleeve is a valve facing b<3> which co-acts with a similar facing e' on the interior of a sleeve E to control the passage of air between the barrel 'and the casing. The sleeve is rotated, to effect such control, on the screwed end a<6> of the casing A by means of holes e<4>. Specification 22930/98, [Class 51, Furnaces &c.], is referred to.
Patent GB-831120-A (GB)
Title: Film-forming composition with plasticizer
Inventor: CORNWELL RALPH T K
IPC: C08K5/20
Filed: 1956-03-19
Abstract: A composition comprises (1) an organic film-forming material selected from the group consisting of thermoplastic resins, thermoplastic cellulose compounds, thermosetting resins and mixtures of the same; and (2) as plasticizer, the dipropionate of N,N1-bis (beta-hydroxy ethyl) terephthalamide in an amount from 5 to 45% by weight of the total solids content of the composition.  Thermoplastic resins specified are polyvinyl chloride, polyvinylidene chloride, polystyrene, copolymers of vinyl chloride and vinyl acetate, copolymers of methylmethacrylate and vinyl chloride, polyvinyl butyral, polyvinyl acetal, polymethyl methacrylate, polymethyl acrylate, polyethylene, polyamides, natural rubbers, chlorinated rubber, polysulphides, polyisobutylenes, cyclized rubber, rubber hydrochloride, "Buna" rubber (Registered Trade Mark), coumarone-indene with rubber, oil-modified and unmodified alkyd resins prepared from dihydroxyalcohols and dicarboxylic acids and phenol-formaldehyde resins prepared from phenols having only two reactive positions.  Thermoplastic cellulose compounds specified are cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, cellulose propionate, nitrocellulose, benzyl cellulose, ethyl cellulose, butyl cellulose and hydroxy ethyl cellulose. Thermosetting resins specified are urea-formaldehyde, phenol-formaldehyde (phenols having three reactive positions), melamine-formaldehyde, alkyd resins prepared from polyhydric alcohols and polycarboxylic acids, phenol-furfural, unsaturated polyesters, polyalkyl alcohol and derivatives and protein-formaldehyde resins such as casein-formaldehyde and shellac-formaldehyde.  Suitable mixtures of thermoplastic and thermosetting resins are polyvinyl chloride and urea-formaldehyde-butanol ether, polyvinyl chloride and phenol-formaldehyde, polymethacrylate and urea-formaldehyde, polystyrene and alkyd, coumarone-indene and alkyd and polyvinyl acetal and melamineformaldehyde.  The film-forming material may be present in a proportion of 40 to 95% by weight of the total solids in the composition.  Additional plasticizers such as dibutyl phthalate, dilauryl phthalate, cyclohexyl butyl phthalate, di (methylcyclohexyl) phthalate, di (dimethylcyclohexyl) adipate, dicyclohexyl adipate, tricresyl phosphate, esters of o-benzoyl benzoic acid such as butyl benzoyl benzoate, and derivatives of toluene sulphonamide may also be included in the compositions.  Paraffin wax, dammar gum, ester gum and blown rapeseed oil may also be present.  Specifications 563,635 and 671,141 are referred to.
Patent GB-492049-A (GB)
Title: An improved process for determining the baking qualities of wheaten flour dough and apparatus therefor
IPC: G01N33/10
Filed: 1937-03-23
Abstract: 492,049. Testing dough. HALTON, P., and FISHER. E. A. March 23, 1937, No. 8542. [Class 58] Doughs are prepared to have a predetermined and similar elasticity modulus and are then tested for their viscosity elasticity modulus ratio and extensibility before tearing. The elasticity modulus is estimated by measuring the rate of extrusion through an aperture while under pressure and by measuring the rates of extrusion of doughs of different water content the amount of water required by a flour to give a dough of predetermined elasticity may be determined. The dough is placed in a vertical cylinder 11 having a small aperture 15 at the bottom and is compressed by a piston 16 to which is connected a weight 18. A pointer 19 indicates the downward movement of the dough due to its extrusion through the aperture. The viscosity and bearing properties are measured by impaling a ball of dough, made under standardized conditions and of predetermined elasticity modulus, symmetrically on two horizontal arms 21, 22, arranged in contact with each other. The lower arm 22 is mounted on a crosshead carried by vertical guides 24 and moved up and down by a screw-threaded rod 25 engaging with a threaded sleeve fastened to the crosshead. The rod 25 may be rotated by a motor 27 through belt and pulley gearing. The upper arm 21 is also carried on a crosshead carried by guides and is normally held against a stop by a wire 32 passing over and attached to a pulley 33 to which a weight 34 is secured by an arm 35. The upper arm is also connected to a stylus which records the vertical movement of the arm on a drum 37 rotated by gearing from the upper end of the rod 25. On starting the motor the upper arm will tend to be pulled downwards owing to the viscosity of the dough : ultimately the dough will tear and the stylus will record the point of rupture. The drum will thus show a record of the force required to stretch the dough and the elongation produced.
Patent GB-1423097-A (GB)
Title: Microfiche duplicator
IPC: G03B27/30
Filed: 1974-02-26
Abstract: 1423097 Contact printing SCOTT PAPER CO 26 Feb 1974 [8 March 1974] 8649/74 Heading G2A A micro-fiche copier has a reciprocatory copyboard housing 202 movable at a variable rate through an exposure station and having a UV- transmissive plate 26, laterally adjustable edge stop assembly comprising a compressible sheet 240 and thin top sheet 242, fixed LH side stop 224, movable RH side stops 292 and 294 and movable front stops 244 and 246, each comprising a pair of tangs and an intermediate original-retaining member. The exposure station comprises a compressible roller 414 to which is frictionally secured a copy sheet drag and flattening assembly 418, UV-light source 504, pivotable reflector member 534 (to enable fixing of vesicular film) and copy sheet pick-off plate 450. A micro-fiche original to be copied, one or more times, is placed on plate 26, adjacent sheet 240 and below sheet 242, while front stops 244 and 246 are manually retracted by depression of bar 262, a diazo or vesicular copy sheet from a roll or sheet supply is dropped on the micro-fiche to overlap sheet 242, and the copy sheet is registered while housing 202 is moved rearwards towards the exposure station by inward movement of side stops 292 and 294 and drag action of assembly 418 (on rotation of roller 414 by plate 26). After contact exposure of the copy sheet through a slit while passing below roller 414, it is removed by pick-off plate 450, passed through a U-shaped development chamber, having three heating elements and means for metered supply of liquid and gas, between endless belts 818 and 820, belt 820 being of porous material, and passed. below the development station along an endless belt 570 to a collection tray 34. For the development of diazo film, the development chamber is fed with metered aqueous ammonia or water and gaseous ammonia and one of the three heating elements is used only during preliminary heating.
Patent GB-178098-A (GB)
Title: Improvements in or relating to the manufacture of milling cutters
Filed: 1922-03-25
Abstract: 178,098. Bertin, H. L. April 7, 1921, [Convention date]. Backing-off lathes.-In a machine for making milling-cutters, particularly those of the kind used in shoe manufacture, the work-piece 3 is mounted on a shaft 2 driven through gears 24 from a driving-pulley 26 and is shaped by a cutter 28 which is controlled to impart the required contour to the work by a reciprocating templet 4. The latter is operated from a connecting rod 8 from an adjustable crank-disc 7 driven from the work spindle by gearing 29 belt 29<a> and worm 7<a>. A swinging lever 11 having a finger 12 in contact with the templet is mounted at its other end in bearings 14 and carries bosses 11<a> forming bearings for a shaft 16 driven through gearing 25 from the main shaft. The tool 28 is carried on an arm 18 which is mounted on a slidable shaft 15 passing through the end of the lever 11, and carries a finger in contact with the relieving- cam 17 on the shaft 16, the rotation of which thus imparts the relieving movement to the tool. The speed ratio of the shafts 2, 16 is varied according to the number of teeth on the workpiece. The reciprocating movement of the templet is transmitted to the shaft 15 to traverse the tool along the work by a lever 19 mounted in fixed centres 23 and pivoted to a sleeve on the shaft 15 at 19<b>. To facilitate the movement of the finger along the templet, the latter may be amplified ten times in length and five times in height, the reduction ratios of the levers 11, 19 being correspondingly modified.
Patent GB-767649-A (GB)
Title: Method and apparatus for forming hollow laminated plastic articles
IPC: B29C48/09
Filed: 1955-03-25
Abstract: 767,649. Portable containers. OWENSILLINOIS GLASS CO. March 25, 1955 [April 21, 1954], No. 8731/55. Class 66. [Also in Group V] A moulded plastic container is made from two or more laminations L<SP>1</SP>, L<SP>2</SP> of plastic material, the neck also being similarly laminated. The material of the inner or innermost lamination may have a certain property such as compatibility with the contents of the container, and the material of the outer or outermost lamination may be chosen for its appearance, colour, &c.
Patent GB-207112-A (GB)
Title: An improved bed-chair, settee, chesterfield or the like
IPC: A47C17/207
Filed: 1923-03-28
Abstract: 207,112. Golding, W. F. March 28, 1923. No Patent granted (Sealing fee not paid). Bedsteads convertible into seats; adjustments. -A chair or settee convertible into a bedstead, which may also be made as a toy, comprises a seat 3 pivoted at 6 to the frame 1 and adapted to be swung outwards to form the foot section of the bed, a back 8<a> pivoted at 10, links 13 adapted to move the back into a horizontal position when the seat is swung outwards, and legs 8. 28 for supporting the outer ends of the head and foot sections. The legs 28 are preferably actuated by links 15 so as to unfold automatically as the back is lowered. When the device is in use as a settee, angular adjustment of the back is provided for bv means of notches 17<x> and a bar 18 held in position by clips 19. The legs 8<x> of the foot section may be mounted on a hinged bar B so that they may be turned over and passed between the slats of the inner section when the device is in use as a chair.
Patent GB-207774-A (GB)
Title: Improvements in electric relays
IPC: H01H50/64
Filed: 1923-03-28
Abstract: 207,774. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Gilson, R. M.). Nov. 29, 1922, [Convention date]. Securing toothed wheels on shafts.-In a frictional driving mechanism, described in connection with an electric relay, means are provided for varying the frictional grip and thus the shockabsorbing power according to the direction of rotation of the driving shaft. Riveted to the shaft 27 a.re a disc 21 and a smaller disc 26 to which is anchored one end of a spring 25 of which the other end is anchored to a disc 24. The pinion 20, loose on the shaft 27, is located between friction discs 22 and drives a segment 9, which at the end of its travel in either direction strikes a fixed stop. As will be seen from the Figure, rotation of the shaft 27 and disc 26 in one direction uncoils the spring and tends to augment the pressure between the disc 24 and pinion 20, thus ensuring substantially positive rotation of the latter until the segment strikes the stop. Rotation in the opposite direction coils up the spring, thus reducing the pressure of the friction discs 22 and allowing the clutch to slip more readily when the pinion is checked.
Patent GB-624042-A (GB)
Title: Improvements in or relating to phase discriminator circuits
IPC: G01R25/00
Filed: 1947-04-01
Abstract: 624,042. Phase difference measurements. O'BRIEN, W. J., and DECCA RECORD CO., Ltd. April 1, 1947, No. 8858. [Class 37] Oscillations of the same frequency are compared in phase by changing one oscillation applied at 10, 11 into two oscillations at D, C, of phase difference 180 degrees, one of which is in phase with the oscillation at 10, 11, and deriving from the other oscillation A, applied at 31, 32, a further oscillation B in phase quadrature with A; these oscillations are applied as shown to two pairs of rectifiers 18, 20 and 25, 26, each pair providing with its load resistance a closed unidirectional conducting path; the D.C. potentials developed at the centre taps of the load resistances 27, 28 and 21, 22 have their magnitudes proportional to the sine and cosine of the difference in phase of the orginal signals, and after amplification are applied to a ratio-meter 45 or may be used to correct the phase difference by being applied to a variable reactance.
Patent GB-712939-A (GB)
Title: A method of moulding hollow bodies from heat hardenable artificial resin masses and bodies so moulded
IPC: B29C41/04
Filed: 1952-04-07
Abstract: 712,939. Centrifugal moulding of hollow articles from heat-hardenable synthetic resins. CIBA Ltd April 7, 1952 [April 12, 1951; March 12, 1952], No. 8888/52. Class 87 (2) A heat-hardenable resin mass is spread on the inner wall of a rotating hollow mould by centrifugal force and the mould heated to harden the resin and form a hollow article. The inside of the mould may be coated with a lubricant, e.g. a silicon compound. The resin may be introduced continuously or intermittently into the mould either in plastic or a pulverulent cbndition. The resin may contain either a filler, e.g. stone, quartz or porcelain meal, quartz sand, talc, chalk, silicon carbide, asbestos or metal powder, asbestos or glass fibre, natural or synthetic fibres, textile or glass fibre fabrics or wire gauze, a dye or pigment or a softening or a hardening agent. The resin and filler may be introduced into the mould alternately to form a multi-layer article. The mould may be heated by a flame, hot air, steam, liquid metal, oil or water, an electric resistance, eddy current heating, high frequency induction heating or infrared rays: The article may be finally hardened out of the mould and may be shaped, e.g. by bending, before its final hardening. The mould may have depressions or engraved parts and may be in the form of a tube, Fig. 1 (not shown), or it may be split longitudinally as shown in Fig. 2. The article may be formed about a metal liner which forms an integral part of the finished article. The axis of the mould may be horizontal, vertical or inclined. The mould may be rotated by supporting it .in a lathe.
Patent GB-1497926-A (GB)
Title: Method for temperature stabilizing photoreceptors
IPC: G03G5/082
Filed: 1975-03-04
Abstract: 1497926 Electro-photography XEROX CORP 4 March 1975 8908/75 Heading G2H  A selenium-arsenic xerographic photo-receptor in a copier is maintained at a constant temperature, not above 40‹C by heating, e.g. by blowing warm air over it. Preferably it is stabilized at 28-38‹C. Heating may take place both before and after charging, developing and image transfer steps, and the photo-receptor may be maintained at the constant temperature for from 10 to 30 minutes.
Patent GB-646380-A (GB)
Title: Mechanical date-indicators
IPC: G04B19/253
Filed: 1947-04-02
Abstract: 646,380. Date-indicators. KLARIS, P. A. April 2, 1947, No. 9047. [Class 106 (iv)] A mechanical date-indicator in or for use with a clock has day, date and month discs rotating in parallel planes about separate axes and comprises a cam rotating with the hour hand, which cam once in each revolution thereof causes a lever and pawl to advance the day disc one step, the day disc advancing the date disc and the date disc advancing the month disc, each stepwise through lever means. A snail cam 2 driven in accordance with the hour hand of a clock reciprocates a bell-crank lever 3, 4 once every twelve hours and drives a day-name disc A through the cooperation of a resilient pawl 5 with one of fourteen pins on the disc which is divided into fourteen sectors for the days of the week, each repeated twice in succession in colours distinguishing morning and afternoon. Once every twenty-four hours a tooth 7 on the dayname disc causes a pawl 9 to advance a date disc B through teeth 10, the disc being divided into 32 sectors numbers 1-31, one being blank. As the date-disc rotates it winds a spring 12 in a drum 11 fixed to the disc against the restraint of a pawl 13 held by a pawl 18 in the path of pins 14 on a fixed disc. A second arm of the pawl 13 co-operates with a slot in the disc B to drive therewith, through a pin 17, a stepped cam 15 on a ring 151 until the cam 15 is restrained at the end of the month by one of twelve pins 16 disposed on a month-disc at radial distances proportional to the numbers of days of the months, whereupon the pin 17 causes the pawl 13 to release a pin 14 and be held by the pawl 18. Next time the pawl 9 releases the date-disc, it is returned to initial position by the spring 12, whereupon a fixed pin knocks the pawl 18 free from the pawl 13 so that the latter re-engages a pin 14, meanwhile a pin 19 on the date-disc co-operates with levers and pawl to advance the month-disc. Means are provided for setting the discs by hand. According to the disposition of the pin 16 for February, a special adjustment at the end of that month will be required once or three times every four years.