baber/WOPTO huggingface dataset:
Patent GB-921099-A (GB)
Title: Automatic electric control apparatus
IPC: G05D23/22
Filed: 1961-03-22
Abstract: 921,099. Automatic temperature control. WESTINGHOUSE ELECTRIC CORPORATION. March 22, 1961 [April 7, 1960], No. 10470/61. Class 38 (4). A phase-controlled rectifier apparatus has a constant component of excitation voltage having a preselected phase relationship with the alternating voltage input of the apparatus for a desired output level of the apparatus, and comprises sensing means providing an error signal depending in magnitude and polarity upon the difference between the actual and desired output level, means providing a variable component of excitation 90 degrees out of phase with said constant component by modulating said error signal with a voltage of the same waveform and frequency as the constant component, and means summing said constant and variable components, the resultant actual excitation applied to the rectifier apparatus being such that it has a phase displacement about said preselected phase relationship which is determined by the magnitude and polarity of said error signal. As shown, a thyratron-controlled power generator 2 is supplied from an A.C. power line having a waveform E sin #t and provides a regulated output to a load 4 the temperature of which it is desired to maintain constant. A first phase-shifter 6 provides a firing voltage B sin (#t+#) to a summing junction 8 which in turn provides an excitation voltage to a firing circuit 10. As the temperature of the load 4 varies a thermocouple or the like (not shown) provides a signal TA which is compared with a reference signal TR in a circuit 12 having as an output the error voltage f(t) which is applied to a chopper amplifier and filter circuit 16. A second phase shifter 18 provides a driving voltage sin (#t+α) to the circuit 16 which converts the input direct -voltage f(t) into an alternating signal, amplifies it, and produces an output of the form A f(t) sin (#t+#). The phase angles are chosen such that # - # substantially equals 90 degrees. The voltages B sin (#t+#) and Af(t) sin (#t+#) are added vectorially in the circuit 8 to give a resultant firing voltage D sin (#t + #) the phase # of which is varied  about the reference phase angle # of the voltage B sin (#t + #) in accordance with the error signal f(t), so that the output of the apparatus 2 is regulated in dependence upon this error signal.
Patent GB-1442481-A (GB)
Title: Holding bars for printing blankets
IPC: B41F30/00
Filed: 1974-03-08
Abstract: 1442481 Printing blanket DAYCO CORP 8 March 1974 [9 April 1973] 10472/74 Heading B6C [Also in Division B5] A printing blanket 21 has a holding bar 24 which comprises a channel member having a pair of legs 31, 32 diverging from a bight 30, at least one leg having a plurality of tooth-like projections 33 extending therefrom toward the other leg, and at least one inspection aperture 34 in one leg to enable inspection of the blanket 21 to ensure positioning of an edge thereof closely adjacent to the bight 30. In one embodiment, Fig. 2, the bar 24 is made from steel, aluminium or plastics material by roll forming or extrusion and the projections 33 are in the form of V-shaped tabs punched therefrom. Alternatively, the tabs 33 may be trapezium shaped or semi-circular. The tabs 33 are arranged in rows and may be aligned with or staggered with respect to the tabs in the adjacent row. Aligned inspection apertures 34 are formed in both legs 31, 32. A flange 42 is formed on the leg 31 to hold the bar 24 and its blanket 21 in position on an associated cylinder. Preferably, the blanket 21, Fig. 1, comprises three woven fabric layers 22 with an ink-transferring layer 23, e.g. of natural or synthetic rubber or plastics material, bonded thereto. The tabs 33 pierce completely through the layers 22 and partially penetrate the layer 23. In another embodiment, Fig. 5, tabs 33A, 43A are punched out of each leg 31A, 32A, respectively, and are arranged so that, when the bar is clamped in position on the blanket, the tabs 33A, 34A do not strike each other. In a further embodiment, Fig. 6, the bar 24B is extruded with rib-like structures which are machined or cut to form projections 33B with shaped sides 45B.
Patent GB-105850-A (GB)
IPC: F16C33/48
Abstract: 105,850. Marles, H., and Ransome & Co., A. Aug. 8, 1916. Roller bearings.-A cast roller-bearing cage containing strengthening-wires, as described in Specification 23264/12, is used with rollers consisting of a number of short lengths A.
Patent GB-375902-A (GB)
Title: Process for the production of coke and gas in intermittently operated oven chambers
IPC: C10B27/00
Filed: 1931-04-10
Abstract: 375,902. Coking processes. STILL, C., Recklinghausen, Westphalia, Germany. April 10, 1931, No. 10620. Convention date, April 10, 1930. Addition to 357,057. [Class 55 (i).] In a coking process of the kind described in the Parent Specification, in which distillates are withdrawn from ducts in the charge as well as from the space above the charge, when treating coals of high volatile content the vacuum employed for drawing off the distillates from the interior of the charge is raised to not less than 100 mm. of water and is gradually reduced as the gas development diminishes. This suction from the interior of this charge is maintained until nearly the end of the carbonizing period. In an example, a suction of 170 mm. below atmospheric is maintained for 20-22 hours in a coking period of 24 hours.
Patent GB-476097-A (GB)
Title: Improvements relating to two stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1937-04-14
Abstract: 476,097. Two-stroke engines. GRAB, W. April 14, 1937, No. 10630. [Class 7 (ii)] The cylinders 1, 2 of a two-stroke engine are charged tangentially by a pump 11, the delivery of which is controlled so that it continues after the cylinder exhaust ports 8, 9 are closed by the pistons. The induction port 18 and the delivery ports 21 of the pump, which, in the arrangement shown, is driven at twice crank-shaft speed, are controlled by a sleeve valve 15. The delivery passages terminate in sloping baffles 6, 7 which cause the charges to whirl round the cylinders.
Patent GB-1010084-A (GB)
Title: Adjustable wheel support for a lawn mower
IPC: A01D34/74
Filed: 1963-03-18
Abstract: 1,010,084. Rotary-scythe mowers. SUNBEAM CORPORTION. March 18, 1963 [Aug. 22, 1962], No. 10644/63. Heading AlF. A wheel-mounting attachment for a rotary-scythe mower comprises a supporting plate 22 attachable to the body 12 of the mower and a wheel-mounting member 28 having a wheel-mounting axle 34 and being pivoted to the plate, which carries a series of notches 42 along one edge for engagement by a latch-pin 44 on the member 28, a pivot-pin 30 on the plate extending through a slot 28alpha on the member to permit pivotal and limited sliding motion of the member relatively to the plate for disengaging the latch-pin from the notches, there being a spring 46 to urge the member 28 into a latched position. As shown in Fig. 3, the plate has an offset portion 26 which is secured, by bolts 25, to the side of the mower casing 12. The member 28 is a bell-crank, of which one limb 32 carries the wheel axle 34 and also a roller 40 running on the arcuate edge 22alpha of the plate 22. The other limb carries the latchpin 44, which clears the line of notches 42 on the plate when the member is lifted, against the spring 46, so that the pivot-pin 30 lies at the bottom of the slot 28alpha. The notches 42 are radial to the pin 30, to obviate accidental removal of the latch-pin from them.
Patent GB-269910-A (GB)
Title: Improvements relating to speed and distance indicators
IPC: G01P3/42
Filed: 1927-04-21
Abstract: 269,910. Soc. Anon. des Etablissements TÚcalÚmit. April 21, 1926, [Convention date]. Electric and magnetic speed indicators; odometers.-An electromagnetic switch for making or breaking periodically the circuit of an electric speed indicator or odometer comprises a contact member actuated. by a magnetic mass or masses secured to the revolving part concerned. The switch casing 6 may be mounted on the fixed flange 14, Fig. 6, of a front wheel brake, two magnetic masses 12 being secured to the brake drum 15. In Figs. 1 and 7, the magnet 1 of the contact breaker has an exciting coil 2, a long pole 5 having a projection 11, and a short pole 3 carrying a trembler blade 4 lying above an auxiliary pole 7. A contact 8 on the blade 4 cooperates with a contact 9 in the circuit of the indicating instrument so that when the part 12, in its passage, closes the magnetic circuit through the poles 5, 7, the indicating circuit is either broken or completed. The arrangement of the contacts and of the trembler blade with reference to the magnet may be varied. In a modification a permanent magnet is used. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the statement that a rotary star wheel carrying a coil winding may be substituted for the trembler blade. This subject-matter does not appear in the Specification as accepted.
Patent GB-117677-A (GB)
Title: Improvements in Devices for Securing Hawsers, Ropes and the like.
Inventor: SANDFORD WILLIAM HERBERT
IPC: F16G11/04
Filed: 1917-07-26
Abstract: 117,677. Sandford, W. H. July 26, 1917. Coupling.-Relates to devices for securing or gripping hawsers, ropes, and the like, the devices being of the type referred to in Specifications 107,636 and 111,028, and consisting of a wedgepiece B mounted to slide within a sheath A. The parts are so constructed that the rope is gripped between the wedge and the sheath on one side of the wedge only. In the arrangement shown in Fig. 1, the rope passes freely through a longitudinal passage b' in the wedge-piece, the grip being between the edge b<2> of the wedge-piece and the inner face a<1> of the sheath. The edge b of the wedge-piece is adapted to bear snugly and slide upon the face a of the sheath. Instead of the passage b<1>, oppositely disposed grooves may be provided in the edges a, b for the free passage of the rope. The wedge-piece may have an enlarged edge portion which slides in guideways formed in the inner faces of the sheath. To prevent the wedge-piece from turning under the pull of the rope in the construction shown in Fig. 2. projections b<4> are formed on the wedge-piece fitting guideways a<2> formed on the inner faces of the sheath. Instead of having two projections b<4>, there may be only one centrally disposed projection. The locking-bolt C may, according to another modification, pass through slots formed in the projections b<4>, The device shown in Fig. 7 is for gripping the ends nf two ropes G. In this construction, guideways a<5> receive projections from the faces of the wedge-pieces.
Patent GB-163197-A (GB)
Title: Improvements relating to wet and dry bulb hygrometers
IPC: G01N25/62
Filed: 1920-04-17
Abstract: 163,197. Smethurst, H. April 17, 1920. Hygrometric apparatus.- In a wet-and-dry bulb hygrometer, the wick b supplying water from a container c to a cotton &c. bag a surrounding the wet bulb, is looped round the bag so as to retain the latter in position.
Patent GB-351600-A (GB)
Title: Improvements in the culture of micro-organisms intended for unhairing purposes
IPC: C14C1/06
Filed: 1930-04-04
Abstract: Degraded keratin substance (keratose) for use as a bacterial medium is prepared, for example, by treating calf hair with 10 times its weight of 2N aqueous NaOH for 18 hours at 25 DEG  C.; hydrochloric acid is added to reduce the pH value to 8, the solution is filtered and acidified to pH = 4 and the keratose thus precipitated is filtered off washed and redissolved in sodium hydroxide.ALSO:Micro-organisms intended for unhairing hides &c. or for the production therefrom of unhairing preparations are cultivated in nutrient media containing degraded keratin (keratose) whereby their specific activity is increased.  Degraded keratin substance is prepared, for example, by treating calf hair with 10 times its weight of 2N aqueous NaOH for 18 hours at 25 DEG  C.; hydrochloric acid is added to reduce the pH value to 8, the solution is filtered and acidified to pH = 4 and the keratose thus precipitated is filtered off, washed, and redissolved in sodium hydroxide.  According to examples cultures of Bacillus Megatherium and Bacillus Vulgatus obtained from sweating hide and cultivated on meat extract &c. media are inoculated into a nutrient solution containing 1-2 per cent of keratose and 0,5 per cent of peptone with the addition of potassium phosphate if desired.  After some days' growth the bacteria are killed and the films produced dried and powdered.  The product is stated to have greater unhairing effect than that obtained from bacteria not cultivated on keratose.
Patent GB-108070-A (GB)
IPC: F16H3/26
Abstract: 108,070. Oliver, C. E. Sept. 28, 1916. Variable-speed epicyclic gearing.-A variablespeed and reversing gear for motor-vehicles comprises a casing 1 containing two lay shafts 6, 7, and two trains of reducing-gearing for forward and reverse driving at low speed. Either of these trains is put into gear by a double clutch 21 connecting wheels 5 or 18 to the driven shaft 3, the casing being held stationary by a brake 16. For high-speed forward driving, a clutch 14 connects the casing 1 to the driving-shaft 2, the brake 16 is released, and the casing gradually attains the speed of the shaft 2, the same speed being then transmitted to the shaft 3. In a modification, the clutch 21 is replaced by a movable gear-wheel 5 which can be placed in gear with either of the wheels 10 or 12.
Patent GB-559176-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23C99/00
Filed: 1942-08-12
Abstract: 559,176. Liquid-fuel burners. WALLSEND SLIPWAY & ENGINEERING CO., Ltd., and DOBBS, A. G. Aug. 3, 1942, No. 10825. [Class 75 (i)] A liquid-fuel burner comprises a tubular body A having an inlet B for primary air and a converging forward end fitted with a renewable nozzle D, a carrier member 8 removably fitted in the rear portion of the body A, a tube C mounted in the member 8 and terminating rearwardly of the nozzle D and a fuel tube H mounted axially in the tube C by a nipple 13 which forms a valve seat for a valve 14 on a spindle 10 fitted in a stuffing box 9 in the member 8. The fuel supplied through a nipple L to the tube H is controlled by the valve 14 the rear part of which is cylindrical and the front part of which is of reduced diameter and is formed with a tapering longitudinal channel 16. In the shut position the annular shoulder on the valve seats on the rear face of the nipple 13. The air supply is controlled by an angularly adjustable guide F. Skew holes K for the passage of air to the forward end of the fuel tube H are formed in the tube C. Specification 540,550 is referred to.
Patent GB-129099-A (GB)
Title: An Improved Attachment for Drilling Cylinders and Barrels of Cylinder Locks and Latches.
Inventor: HARLEY HERBERT HENRY
IPC: B23B41/00
Filed: 1918-07-02
Abstract: 129,099. Harley, H. H., and Vaughan, E. July 2, 1918. Locks.-Apparatus for drilling the key barrels or cylinders of cylinder-locks has work-holding means attached to the end of an overhanging slide c with step-by-step movement, preferably of the kind described in Specifications 129,097 and 129,098. The guide or jig w for the drill is mounted in the cover-plate d, and may be lifted by a lever to clear a projecting flange on the cylinder n, Fig. 11, which is mounted between a centre o held in a socket in the adjustable, rod p, and a centre on the rod s mounted in bracket so attached to the slide c so that it may be readily moved out of the way to allow the spring-pressed rod v to eject the drilled cylinder. The forked end of a plunger t engages the radial web u of the cylinder to position it. In drilling key barrels y, Fig. 13, a rod with a head z having a transverse projection to enter the key bar slot replaces the rod p, and the plunger t is not used.
Patent GB-109495-A (GB)
IPC: B60B9/22
Abstract: 109,495. Vincent, W. J. March 20. 1917. Tyres with rims enclosing air tubes or chambers.-The pneumatic tyre G having a flattened tread is enclosed by the rim flanges B and a rubber tread band D which is stiffened at the base by fabric F and fitted with studs E to take the wear against the edges of the rim flanges. To reduce weight, the flanges have apertures C.
Patent GB-1064311-A (GB)
Title: Phosphorus-containing derivatives of 6-chromanol
IPC: C07D311/92
Filed: 1964-03-16
Abstract: Novel 5-phosphomethyl derivatives of 6-chromanol having the formula <FORM:1064311/C2/1> where R1 is a hydrogen atom or a C2- 6 alkanoyl radical, Z is -CH = CH-CH = CH- or represents two methoxy or two methyl groups, and R is -CH3 or -CH2(CH2CH2CH(CH3)CH2)nH where n is an integer from 1-9, except that when R1 is a hydrogen atom Z represents two methoxy groups, are obtained (1) when R1 is an alkanoyl radical by selectively reducing the corresponding dibenzyl esters of the 6-acyloxy derivatives to give the 6-acyloxy product, or (2) when Z represents two methoxy groups and R1 is hydrogen, by reacting an appropriate 2,3-dimethoxy 5 - methyl 6 - hydroxyalkyl - 1 : 4 benzoquinone with phosphoric acid.  The reduction process is carried out using hydrogen in the presence of a noble metal catalyst (e.g. palladium) and a solvent, e.g. ethanol or dioxane.  The dibenzyl esters used may be obtained by reacting an appropriate methyl hydroxyalkyl-1 : 4-quinone with a C2-C6 acyl halide, e.g. acetyl chloride, propionyl bromide or propionyl chloride as in Specification 1,064,315 to give a 5-halomethyl 6-chromanyl acylate and treating this with silver dibenzyl phosphate as in Specification 1,064,314. Specified 1 : 4-quinones are the g -hydroxy side chain substituted derivative of Vitamin K1(I), a compound of the coenzyme Q series (II) and a derivative of Vitamin E (III) having the formulae <FORM:1064311/C2/2> <FORM:1064311/C2/3> <FORM:1064311/C2/4> The 5-phosphomethyl compounds and salts thereof (e.g. K salt) are useful as antioxidants (e.g. for oils and fats), for preserving chicken sperm (see Division A2) and as sun screening agents (see Division A5).ALSO:Chicken sperm contains as preservative a compound of the formula:-  <FORM:1064311/A1-A3/1> in which R1 is a hydrogen atom or a C2-6 alkanoyl radical, Z is -CH = CH-CH = CH- or represents two methoxy or two methyl groups and R is -CH3 or -CH2 (CH2 CH2 CH (CH3)-CH2)n H where n is an integer from 1 to 9, except that when R1 is a hydrogen atom Z represents two methoxy groups.ALSO:An anti-sunburn preparation comprises as a sun-screening agent a compound of the formula <FORM:1064311/A5-A6/1> in which R1 is a hydrogen atom or a C2-6 alkaroyl radical, Z is -CH=CH-CH=CH-, or <FORM:1064311/A5-A6/2> or <FORM:1064311/A5-A6/3> and R is -CH3 or -CH2(CH2CH2CH(CH3) CH2)nH where n is an integer from 1-9, except that when R1 is a hydrogen atom Z represents two methoxy groups, together with a topically applicable carrier or diluent.
Patent GB-121921-A (GB)
Title: Improvements in and relating to Brand-saws, Jig-saws, and the like.
Inventor: GOODWIN WILLIAM GEORGE
IPC: B27B27/02
Filed: 1918-07-05
Abstract: 121,921. Goodwin, W. G. July 5, 1918. Band-saw machines; reciprocating-saw machines.-To enable wood to be sawn to finished shapes in band and jig-saw machines, a fence 1 is mounted in the machine so as to be adapted to engage with a templet 4 of the required shape, which is secured by screws or otherwise to the work 3, as the work is fed to the saw 2. A setscrew 11 and clamping-bolts 13 enable the fence to be adjusted and fixed.
Patent GB-274955-A (GB)
Title: Improvements in or relating to bituminous paints and like coating and impregnating compositions
IPC: C09D195/00
Filed: 1926-04-28
Abstract: 274,955. Colas Products, Ltd., and Levy, F. April 28, 1926. Emulsions, making.-Bituminous paints comprise a reversed bituminous emulsion or jelly in which pigmentous material is incorporated. The reversed emulsion or jelly made be made by the methods set forth in Specification 251,323, and the pigmentous material in the form of oil or water paint incorporated during or after the preparation of the reversed emulsion &c. White lead, zinc oxide, coloured pigments, solvents, driers, thickeners, &c. may be included in the compositions. If desired the pigmentous material may be added to the original bitumen-in-water emulsion, which is afterwards reversed. In examples, (1) white lead, vermilion or Venetian red, rubbed down with terebene, is stirred into a reversed emulsion. (2) Venetian red in oil, mixed with turpentine substitute, is added to a bitumen-in-water emulsion and the whole agitated. The solvent effects the reversal. (3) An emulsion prepared according to Specification 202,021 and also containing Venetian red, is reversed by agitation with turpentine substitute. Specification 255,684, [Class 95, Paints &c.], also is referred to.
Patent GB-725366-A (GB)
Title: Multiple band dryer for retted flax
IPC: F26B13/00
Filed: 1953-04-23
Abstract: 725,366. Drying retted flax. HAAS, H. April 23, 1953 [Aug. 21, 1952], No. 11191/53. Class 34 (2). Retted flax is dried and loosened during its passage in bundles F through a drying chamber on a series of superposed conveyers 10, 11, 12, the bundles being guided in an arcuate path on transfer from one conveyer to another by endless belts R. The arrangement may also be used to transfer bundles from a lower conveyer to a higher conveyer. In another modification (Fig. 4) an extension of the lower belt 21 takes an arcuate path.
Patent GB-1550753-A (GB)
Title: Stabilized liquid enzyme reagent compositions
IPC: C12N9/96
Filed: 1977-03-17
Abstract: The stable liquid composition comprises molecularly stabilised enzymes which otherwise would be labile and unstable in aqueous medium. The enzymes are stabilised by treating them with a water-miscible organic solvent, for example 30% aqueous propanediol, in the presence of a nonreactive polymer, for example, 0.1% gelatin, and then by diluting with an aqueous medium up to 1% of the solvent while the polymer concentration is maintained at not less than 0.01%. The composition may be stored for long periods without substantial loss of enzymatic activity. The stability of the composition can be improved by incorporating 1 to 8% of salts and, when the composition is likely to be exposed to a bacterial agent of degradation, 0.01 to 0.3% of a bactericidal agent, into the aqueous vehicle for dilution. Thus the stabilised enzyme of the stable composition may be packaged with a substrate and buffer salts. The composition is useful in medical determinations of human and animal functions.
Patent GB-494016-A (GB)
Title: Improvements in or relating to heel seat lasting machines
IPC: A43D21/12
Filed: 1937-04-21
Abstract: 494,016. Lasting-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and PRATT, J. W. April 21, 1937, Nos. 11346 and 14466. Addition to 473,129. [Class 17 (i)] Relates to heel-seat lasting-machines having the fluid-operated means described in the parent Specification for moving the jacked shoe to operating position, and consists in the provision of additional mechanism connecting the jack operating mechanism and the clutch engaging mechanism so that no separate manual operation is necessary to start the machine. The lever 68, described in the original application as swinging the jack and raising the jack post is connected by a link 1 with a bell-crank lever 5 arranged to actuate the clutch engaging rod 810 described in Specification 473,197, so that when the treadle 200 is fully depressed the clutch is engaged. The link 1 is in two parts pivoted together to form a toggle normally in a straightened condition. In case hand starting is desired the toggle is broken. The upper part of the link engages a pin carried by the bellcrank lever 5 by a slot 3, an adjustable screw 8 rendering the time of clutch engagement variable. In a modification, an adjustable stop on the treadle 200 actuates a wire cable connected to the rod 810.