baber/WOPTO huggingface dataset:
Patent GB-449678-A (GB)
Title: Improvements in or relating to methods of removing latent abrasion marks from photographic emulsions
IPC: G03C11/06
Filed: 1934-09-29
Abstract: 449,678. Photographic sensitive materials ; developing. BREWSTER, P. D., 28, Gillespie Avenue, Fair Haven, New Jersey, U.S.A. Sept. 29, 1934, No. 27963. [Class 98 (ii)] Latent abrasion marks in silver halide emulsion layers are cleared before exposure or development, by treating the layer with an atmosphere containing an oxidizing gas or vapour such as a halogen or an oxide of nitrogen. For example bromine gas, diluted as with air, inert gas, or carbon tetrachloride vapour to avoid corrosion of the emulsion support, may be allowed to act on the layer for about one minute at 68‹ F. and 50 per cent humidity. The treatment does not substantially affect the emulsion speed, or the latent image due to exposure, if the layer is thoroughly " washed " with air or water to remove residual gas. Apparatus for applying the treatment may comprise a gas treatment tube 8, Fig. 1, fed by a pump 16 with gas from chambers 14, 14a containing e.g. diluted liquid bromine ; and air " washing " tubes 11, 12 connected to a fan 19. The film 1 is fed by sprockets 3, 4, and passes round upper and lower rollers 9, 10, a loop of slack being formed in a tube 21 which prevents escape of bromine vapour into the air. The exhaust from tube 8 is led back into the chamber 14 by a pipe 17. A combined gas-treating and developing apparatus is shown in Fig. 3 comprising a gas-treating tube 30 with a partition 33, and a developing tube 37. The gas is derived from liquid bromine etc. 34 in the base of tube 30 by agitating the liquid with a motor-driven paddle; this arrangement may also be used in the apparatus shown in Fig. 1. The film passes through a continuouslyexhausted gas labyrinth 27 .before entering tube 30, and may be passed through air or water " washing " tubes in its passage from tube 30 to tube 37.
Patent GB-1471090-A (GB)
Title: Gas drying method and apparatus
IPC: B01D53/26
Filed: 1975-07-03
Abstract: 1471090 Drying wet gases WILKERSON CORP 3 July 1975 28015/75 Heading B1B Wet gas from a high pressure source is dried and reduced in pressure before delivery to a gas-operated means by condensing out the water in the first pass (12) of a double-pass heat exchanger (14) removing the water in a separator (22) passing the dried gas to a vortex tube (20) to split the gas into a relatively cold fraction and a relatively hot fraction which latter fraction is passed through a flow constrictor (28) which controls the division of flows within the vortex, the relatively cold fraction being passed through second pass (16) in heat exchange relation with the feed gas before being recombined with the throttled hot fraction; the recombined fractions is partially bled off to the atmosphere (via pressure relief valve 30) by the minimum amount necessary to maintain a dried gas output at or near the lowest pressure that can be kept substantially constant yet will produce near maximum drying by maintaining the maximum available pressure differential across the vortex tube, the output of the tube being matched to the gas consumption of the gasoperated means.
Patent GB-369884-A (GB)
Title: Spinning spindle bearing
IPC: F16C17/08
Filed: 1930-09-22
Abstract: 369,884. Lubricating spindle bearings. PFERDMENGES, H., Giesenkirchen, near Rheydt, Germany. Sept. 22, 1930, No. 28247. Convention date, March 29. Void [Published under Sect. 91 of the Acts]. [Class 12 (ii).] The nut f securing the bolster casing d of a spinning spindle in the rail e is formed integral with an oil cup f<1> into which the bolster sleeve a depends.
Patent GB-350351-A (GB)
Title: Improvements in or relating to engine frames
IPC: F16M1/00
Filed: 1930-09-23
Abstract: 350,351. Cylindrical journal bearings. SULZER FRERES SOC. ANON., Winterthur, Switzerland.-(Assignees of Ferguson, G. ; 15, Dunklerstraat, The Hague.) Sept. 23, 1930, No. 28387. Convention date, Oct. 18, 1929. Addition to 279,398, [Class 12 (i), Bearings &c.]. [Class 12 (i).] In engines of the kind described in the parent Specification wherein the compression stresses are transmitted from the engine cylinder to the crankshaft bearings, separate means are provided for adjusting the bearing caps. In the construction shown in Fig. 1, the shaft 1 is mounted in bearings 2, 3, the bearing 2 resting in a support 4 secured to the bedplate of the engine, and the upper bearing is held in position by a cap 5. Screwthreaded supports 9, 10 engage the cap 5 and a member 14 connected to the frame 6. The cap 5 is adjusted by screws 15, 16 before the supports 9, 10 are tightened. In a modification, instead of the screws 15,16, two pairs of co-operating wedges are provided which also transmit in part the compression stresses to the cap. In the construction shown in Fig. 3, a plate 21 and a member 22 with a lower part-cylindrical or part-spherical surface, are interposed between the supports 9, 10 and the cap 5. This construction ensures that the bearing- cap is accurately positioned when the supports are unequally tightened.
Patent GB-913138-A (GB)
Title: Improvements in or relating to balanced electronic circuits
Inventor: GODFREY GRAHAM LEWIN
IPC: H03F1/36
Filed: 1960-08-16
Abstract: 913,138. Valve amplifying circuits; valve integrating and differentiating circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 1, 1961 [Aug. 16, 1960], No. 28438/60. Class 40 (6). [Also in Group XXXVI] A balanced electronic circuit comprises a pair of input terminals connected by a pair of input components to the input electrodes of a balanced amplifier and a pair of feedback components connected between the amplifier output and the input electrodes to provide negative feedback, the impedance ratio between the input and feedback components connected to each input electrode being the same. Both input and feedback components may comprise resistors, so that the arrangement functions as an amplifier, or either input or feedback components may comprise capacitors, so that the arrangement functions respectively as a differentiator or integrator. In an embodiment the balanced amplifier comprises a first double valve V1 operating as a long-tailed pair and having a pentode V3 as common cathode impedance, R.C. coupled to a second double valve V2 also operating as a long-tailed pair. The second stage V2 feeds a double valve V4 acting as a pair of cathode followers, providing negative feedback over resistors R3<SP>1</SP>, R4<SP>1</SP> to the grids of the stage V1. Ouptut may be taken from the cathodes of the cathode followers V4 or, as shown, from potentiometer networks in the anode circuits, ganged switches S1/1, S1/2 allowing for different values of overall gain. The input to the amplifier is via series resistors R1<SP>1</SP>, R2<SP>1</SP>, a number of resistors being connected to each grid so that the arrangement may be used for summing a number of inputs. The resistors R1<SP>1</SP>, R2<SP>1</SP>, R3<SP>1</SP>, R4<SP>1</SP> are shunted by variable capacitors which allow for correction of the high-frequency response.
Patent GB-905142-A (GB)
Title: Apparatus for tying bows
Inventor: ROWLEY JACK
IPC: D04D7/10
Filed: 1960-08-17
Abstract: 905,142. Knot-tying devices. BERISFORDS Ltd. May 31, 1961 [Aug. 17, 1960], No. 28459/60. Class 112. Apparatus for tying bows in pliable strip material comprises a pair of displaceable elongated tape-engaging devices disposed at an angle to one another and displaceable in their longitudinal directions between starting positions in which they cross one another, and withdrawn positions wherein they are clear of one another, and means for displacing the devices simultaneously between said positions. The tape engaging devices comprise slides 26 each being slidable in a guide 27 attached to a table 20. Each slide is provided at its end with a flattened hook 31 provided with a sleeve 32. Each sleeve has both an abutment loosely engaging a notch in the hook and a rod 35 having slidable, frictional engagement in a hole in the guide 27, the sleeve thus having a limited lost-motion relative to the hook. Each slide is movable axially by a crank 50 and a connecting- rod 49, each crank being mounted (see Fig. 3) on a shaft 47a rotatable by a sprocket 46 engaged by a chain 45 connected at its ends to rods 44, 47. Each rod 44 is connected to a left-hand pedal 37, below the table, and each rod 47 to a right-hand pedal 38. An adjustable stop 51 limits the movement of the crank 50. The left pedal 37 is depressed to move the slides forward from the position shown in Fig. 2 to one in which the hooks 31 cross one above the other, as in Fig. 6, over a recess 25 in the table top 20, the sleeves 32 lagging behind to open the hooks. The upper part B (see Fig. 6) of a length of ribbon is brought over the upper hook and engaged with the lower hook whilst the lower part C is taken under the lower hook and engaged with the upper hook. On depression of the right pedal 38 the slides retract to the position of Fig. 2 and produce a bow (Figs. 7 to 9, not shown), the lengths of the loops being determined by the setting of the stops 51. The hooks may be detachably mounted on the slides and replaceable by alternative hooks to accommodate different widths of tape. The tape engaging elements may be other than hooks; further the simultaneous displacement thereof can be effected by other means, e.g. hydraulically. In a modification (see Fig. 10) the apparatus comprises a base-board 60 which may be secured to a table 62 by clamps 61. The slides 66 are moved to form a bow by Bowden cables 75 connected to a common pedal, the stroke being set by an adjustable stop on the pedal. Springs 74 return the slides to the position shown. Sleeves 71 are slidably arranged on the hooks 77 and are each frictionally engaged by spring fingers 72.
Patent GB-362556-A (GB)
Title: Improvements in and relating to operating gear for front wheel brakes
IPC: B60T11/04
Filed: 1930-09-23
Abstract: 362,556. Brake transmitting- mechanism. RUBURY J. M., Park Hall, Bradwell, Braintree, Essex. Sept. 23, 1930, No. 28487. [Class 103 (i).] In operating-gear for the front-wheel brakes of vehicles the cam element a for coacting with the brake shoes is provided with a cylindrical sleeve b. having a circular hole f engaged by a part-spherical projection e extending from the part-spherical end. d of the operating-shaft c slidingly carried at its other end in a universal-joint support on the axle or frame of the vehicle. The shaft c is provided with the usual operating-arm g and if necessary with a return spring l. In. a modification the projection e is formed as the head of a pin passing through the part d and extending into a slot in the sleeve b opposite the hole f. In a further modification the pin is provided with a block which co-operates with the sides of the slot. A dustproof cover may be fitted on the shaft c to protect the universal-joint device at the cam end. It is stated that very large angles of steering lock may be obtained by chamfering the internal edges of the sleeves b at u or by cutting gaps in the ends of the sleeves or by both methods. Reference is made to Specification 191,500, [Class 103 (i), Brakes &c.].
Patent GB-774422-A (GB)
Title: Improvements in mobile spreading apparatus
IPC: E01C19/18
Filed: 1954-10-04
Abstract: 774,422. Machines for distributing road materials. METCALFE, F. J. Sept, 27, 1955 [Oct. 4, 1954], No. 28503/54. Class 6(1). Spreading apparatus for stone chippings comprises a feed drum 8 having spaced parallel rods or bars 9 on its periphery and mounted adjacent to the elongated outlet of a hopper 1. As shown, the hopper is attached to the rear of a tipping truck 2 and the drum is arranged so that chippings are carried over the drum in an arcuate path. The floor 5 of the hopper is provided with a flexible strip adjacent to the drum and an adjustable flexible flap 15 is provided to control the feed of material over the drum. An aligned row of withdrawable plates 17 are provided in the hopper so that delivery of chippings to parts of the roller may be cut off. The roller is driven through chain and sprocket gearing 24 from the rear wheel of the truck which is propelled rearwardly. Movable division members 27 are provided in the truck so that only a part of the load is used at a time by tipping the truck. In a modification the drum may be provided with its own power unit carried by the hopper unit or the vehicle. In a further modification the hopper and drum may be. mounted on road wheels and may be selfpropelled or towed or pushed by a vehicle. Loads of chippings may be tipped into the hopper or delivered by a conveyer.
Patent GB-654750-A (GB)
Title: Improvements in or relating to locks
IPC: E05B27/08
Filed: 1948-11-03
Abstract: 654,750. Barrel locks. CHOSSON, G. Nov. 3, 1948, No. 28582. Convention date, Dec. 1, 1947. [Class 44] A barrel lock, shown in transverse and longitudinal sections in Figs. 2 and 4, comprises a rotatable carrier c of square section and adapted to rotate in a fixed tube b against the inside surface of which it bears through its corners. The upper side of the carrier is slotted to pass a locking lever d pivoted on a pin d<1> on the carrier. In the locking position the lever d engages a recess b' in the tube b and the carrier is thereby secured against rotation. On either side of the lever are a number, e.g. three, of slidable tumblers g slotted at g' to engage a spindle e extending from the lever d. Notches g<2> in the slots are aligned by the insertion of the correct key x through a key hole in a washer j. Further pressure on the key causes the lever to tilt against its spring f withdrawing the locking end from the slot b<1> and causing the spindle e to enter the aligned notches g<2> The carrier is now free to be rotated by means of the key, the rotation being transmitted to the lock by a square section spindle h. A nose d<4> on the lever is adapted to enter a notch in the key in the unlocked position to prevent its being withdrawn until returned to the initial locked position. The tumblers are returned to their initial positions by a spring i acting through the spindle h.
Patent GB-812254-A (GB)
Title: A process for increasing the stretchability of viscose rayon threads
IPC: D01F11/02
Filed: 1957-09-11
Abstract: In making artificial threads by spinning viscose into a coagulation bath containing acid and salts and stretching the threads in air or a stretching bath with simultaneous or subsequent decomposition, the stretchability of the products is increased by using a coagulation bath temperature of at least 40 DEG  C. and treating the partially decomposed threads, after withdrawal from the coagulation bath, with an aqueous solution of a water-soluble aldehyde at 10-30 DEG  C., prior to entering the decomposition bath.  Formaldehyde, acetaldehyde or glyoxal may be used as the water-soluble aldehyde, and the aqueous solution may be applied as a bath or spray after the thread has been withdrawn from the coagulation bath, as for example by a roller system.  As a stretching bath the decomposition bath itself may be so used or there may be a separate stretching bath, similar in chemical composition to the coagulation bath, but more dilute.  A stretching bath temperature of 50-100 DEG  C. is preferred.  Examples are given.
Patent GB-1074967-A (GB)
Title: Process for removing mercaptans from wasts gases containing mercaptans and co
IPC: B01D53/48
Filed: 1964-07-13
Abstract: Waste gases containing mercaptans and carbon dioxide are passed at a temperature below 100 DEG  C. and in the presence of oxygen or an oxygen-containing gas over an alkaline catalyst bed to convert the mercaptans to disulphides, the rate of flow of the waste gases being sufficiently high to preclude or minimize reaction between the carbon dioxide and the alkaline catalyst.  The waste gases thereafter are passed over a solid adsorbent material, for example activated carbon, to adsorb the disulphides. The alkaline catalyst bed is formed by impregnating a solid carrier material comprising activated carbon, pumice, coke, clay shard, bauxite or bog iron ore with an alkaline liquid having a viscosity at least equal to the viscosity of a 20% by weight aqueous solution of sodium hydroxide.  The alkaline liquid may comprise an inorganic base, for example an aqueous solution of sodium hydroxide or potassium hydroxide, or an organic base; suitable organic bases, which may be used undiluted or in aqueous solution, include alkanolamines, salts of amino acids and alkylene amines, diamines and polyamines, for example monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, propylenediamine, diethylene triamine and dipropylene triamine.  The alkaline liquid may contain an agent, for example starch, agar agar or dextrin, to increase its viscosity.  The solid adsorbent material may be regenerated, with evolution and recovery of the disulphides adsorbed thereon, by steam distillation.
Patent GB-1388838-A (GB)
Title: Yarn wrap detectors
IPC: D01H13/16
Filed: 1971-06-19
Abstract: 1388838 Roller cap detectors and stop motions CARDING SPECIALISTS CO Ltd 31 May 1972 [19 June 1971] 28869/71 Heading DID  A device for detecting laps on rollers comprises a pivotally mounted sensor 1 adjacent the roller surface which may be deflected through a limited range beyond which means become operative to move the sensor to a limit position at which a switch operates to stop further yarn feed. As shown in Fig. 2 a magnet 14 holds the sensor in its operative position and returns it their form deflections up to position 14a beyond which an eccentric weight 12 causes further deflection to position 14b. At position 14b a reed switch is operated to actuate e.g. a yarn cutter 17, Fig. 1. The device may be used in conjunction with a yarn heater 18 as described in Co-pending Applications 28646/71 and 57484/71.
Patent GB-390443-A (GB)
Title: Improvements in and relating to tightening means for the compression and suction chambers of rotary piston engines
IPC: F01C1/356
Filed: 1932-10-17
Abstract: 390,443. Rotary compressers. KETTERER, E., 3, Fischerstrasse, and REIS, H., 58, Cranachstrasse, both in Essen, Germany. Oct. 17, 1932, No. 28938. Convention date, Oct. 19,1931. [Class 110 (ii).] In a rotary compresser which has a revoluble piston 8 mounted eccentrically on the shaft 4, and two abutments 11, 12, which also act as inlet slide valves to admit air through ports 18 into the crescentshaped working chambers 29, spring-pressed, L-shaped, packing bars 35 are forced outwards by half cylindrical blocks 49, Figs. 3 and 5, which bear each on inward projections 41 of two packing bars 36. The bars 36 fit in recesses 39 in the ends of packing bars 35. Blocks 49 in the two spaces 42 act upon the two outer pressure bars 36, while the blocks 49 in spaces 43 act upon two inner bars 36 A spring-pressed piston 52 presses against the four extensions 37 of the bars 35, and a sealing member 56, which extends across the width of the abutment, is pressed outwards against the casing walls by springs 63. Further packing pieces 65, 66 are provided around the sides of each abutment which prevent leakage of the air contained in spaces 64, Fig. 1, which act as cushions for the abutments. The abutments are connected by bars 15, 16, so that the distance between the inner ends 13 is always equal to the diameter of the piston 8. The piston has an annular groove 91, Fig. 12, which contains packing rings 92, 93, packing washers 94, 97, and spring rings 95, 96, which press outwardly and inwardly respectively. Pistons 99 are pressed outwards by springs 102. The outer packing ring 92 has a ring of teeth 104 which mesh with corresponding teeth on the piston periphery. In the neighbourhood of the compression chamber 27, Fig. 1, where the highest pressure exists, the compressed fluid is led through bores in the packing rings 92, 94, 95, 97, 98, to force them all outwards.
Patent GB-1417257-A (GB)
Title: Reading and or recording means
IPC: G11B17/34
Filed: 1973-06-19
Abstract: 1417257 Guiding magnetic records BELL PUNCH CO Ltd 5 June 1974 [19 June 1973] 28985/73 Heading G5R A magnetic record, e.g. a ticket, is pressed against a reading and/or recording head 3 by a guide 1 which is made mainly of material of low magnetic permeability, e.g. brass, but includes opposite the head gap a portion of high magnetic permeability, e.g. made of an alloy of nickel, brass and chromium. The position of this portion may be adjusted by means of a shim 5 or an eccentric bearing.
Patent GB-152228-A (GB)
Title: Improved furnace for locally heating metals
IPC: B21J17/00
Filed: 1919-11-22
Abstract: 152,228. Dickinson, J., Harvey, R., and Holmes, A. Nov. 22, 1919. Metal - heating furnaces.-A gas or oil fired furnace for locally heating metal bars and tubes prior to bending is formed with a channel-shaped chamber 3, which is enclosed by a removable cover 8 and removable end doors 10. Interchangeable doors with different - sized openings 11 accommodating bars of varying diameter are provided, and the openings are cut a little larger than is necessary for the bar to form escape openings for the heating-gases. The doors preferably work in vertical guides. The burners deliver through openings 7 which flare towards the heating-chamber. In long furnaces, doors 10 may be provided at positions intermediate the ends.
Patent GB-718290-A (GB)
Title: Improvements in or relating to motorised pedal bicycles
IPC: B62M7/00
Filed: 1951-12-13
Abstract: 718,290. Engine-assisted cycles. KREIDLER, A. Dec. 13, 1951 [Dec. 18, 1950], No. 29163/51. Class 79(3) In an engine-assisted bicycle in which the engine and the pedal drive are formed as a single unit, the unit is connected to the frame of the bicycle by two members, one of which is located above and forwardly of the pedal crank axis and the other of which is located below and rearwardly of the axis. As shown the engine 5 and pedal cranks 2 have their drives housed in a common casing 1, the drive being taken therefrom by a sprocket 3 and a chain to the rear wheel. The casing 1 has a lug 6 which passes between lugs 7 on the bicycle frame 8, a bolt passing through holes in the lugs 6 7. A lug 11 on the casing passes between lugs 12 on the frame, a bolt and a rubber bush connecting the lugs 11. 12. The lug 6 may alternatively be arranged on the engine cylinder or a third connection may be provided at 15.
Patent GB-1039586-A (GB)
Title: A bunker for coal and like particulate fuels
Inventor: BOLTON FRANK EDMUND
IPC: F24B15/04
Filed: 1964-07-11
Abstract: 1,039,586. Domestic coal bunkers. BANBURY BUILDINGS Ltd. July 5, 1965 [July 11, 1964], No. 29210/64. Heading E1T. A domestic coal bunker is shaped as shown with the uppermost portion of the front 16 being defined by a series of removable boards 20 slipped into grooves 19 in the side walls 12. The bunker may be made of wood or concrete and be provided with a baffle adjacent the shovelling recess 21 together with a base plate, see also Figs. 3 and 4 (not shown).