baber/WOPTO huggingface dataset:
Patent GB-370373-A (GB)
Title: Process of manufacturing fertilizers
IPC: C05C13/00
Filed: 1930-10-02
Abstract: In the manufacture of fertilizers containing ammonium nitrate a fused mass of ammonium nitrate, the melting-point of which has been lowered by the addition of salts such as sodium nitrate, is employed.  3 to 35 per cent of such salts may be added.  The fused mass free from water may be obtained by the evaporation of a mixed aqueous solution of the salts.  Additional substances such as calcium carbonate or phosphate may be introduced into the fused mass.ALSO:In the manufacture of fertilizers containing ammonium nitrate a fused mass of ammonium nitrate, the melting point of which has been lowered by the addition of salts such as sodium nitrate, is employed.  3 to 35 per cent of such salts may be added.  The fused mass, free from water, may be obtained by the evaporation of a mixed aqueous solution of the salts.  Additional substances such as calcium carbonate or phosphate may be introduced into the fused mass.
Patent GB-603934-A (GB)
Title: Improvements in or relating to guards for power presses
IPC: F16P3/00
Filed: 1945-11-06
Abstract: 603,934. Machinery safety devices. PRESS GUARDS, Ltd., and EVANS, F. A. Nov. 6, 1945, Nos. 29521/45 and 9024/46. [Class 80 (iv)] A safety device for power presses in which a guard can only be opened when a notch and a co-operating member on relatively movable parts of the press come into alignment includes a further device to prevent the entry of the said member into the notch until the moving parts of the press are at rest or just about to come to rest. As shown in Fig. 1, a press crankshaft is provided with a disc 10 having a notch 11 in the periphery thereof for cooperating with a roller coupled to the guard of the machine so that the roller can enter into the notch to release the guard when the roller and notch are in alignment. An auxiliary disc 12 is secured to the disc 10 with a certain amount of relative angular movement allowed by pins 14 and 16 on disc 10 engaging in an arcuate slot 15 in disc 12. The disc 12 also has a notch or gap 13 in its periphery of greater length than the notch 11 in disc 10. Thus, when the disc 10 rotates in the direction of the arrow on starting of the machine with the guard in position, the disc 12 lags behind, due to its inertia until the pin 16 engages the end of slot 15, the notch 11 of disc 10 then being obturated by the disc 12 so that the roller coupled to the guard cannot enter the notch although they may come into alignment several times on repeated strokes of the press. When the press is stopped, however, and the disc 10 slows down the momemtum of disc 12 carries it on until the other end of slot 15 engages roller 14 and the notch 11 is unobstructed so that the guard roller can enter the notch to allow the guard to be raised. Balance weights 18 and 20 are secured to the disc 12. In the arrangement in Fig. 2, the auxiliary disc 23 is frictionally retarded by a brake block 28 to obturate the notch 22 in the main disc 20, but carried around with the latter by a projection 26 engaging the end 271 of a peripheral gap 27 of disc 23. When the machine is stopped the crankshaft comes to rest in a position in which the projection 26 lifts the brake block 28 from the disc 23 which latter continues to rotate under its own momentum until the other end of the gap 27 engages projection 26 and the notch 22 is unobstructed. In another modification just before the crankshaft reaches the position in which it would normally come to rest, a pin thereon engages a pivoted member on a fixed support to move it against a spring loading into a position to obstruct the entry of the guard roller into the notched disc. This member is then moved with a delayed action by the spring acting against a dash-pot to an unobstructing position if the machine comes to rest so that the guard can be raised. In a further modification a pin carried by the reciprocating part of the press co-operates with a notched plate hinged to a fixed support and coupled to the guard, and a blocking member is provided subjected to a spring-loaded dashpot action in the same way as described above.
Patent GB-777598-A (GB)
Title: Improved mounting for turbine casings
Inventor: WHITEHOUSE REGINALD GEORGE
IPC: F01D25/28
Filed: 1954-10-13
Abstract: 777,598. Turbines. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 13, 1955 [Oct. 13, 1954], No. 29525/54. Class 110 (3). Means for mounting a turbine casing with respect to a fixed bearing pedesta comprises co-operating tongue and groove portions formed on the pedesta and housing respectively above am below the horizontal axis of the tur bine the tongues having parallel vertica side faces and the grooves inner face! which diverge outwardly and wedge shaped members located between the faces of the tongue and groove portions and clamped to the groove portions The turbine casing formed in two halve! 1, 2, is located relative to the bearing pedestal, also formed in two halves3, 4, by axially extending lugs attached to the casing forming upper and lower groove portions 5, 6 and co-operating tongues 7, 8 attached to the pedestal. The inner faces of the grooves lie in planes which are substantially radial so that the grooves are outwardly divergent. The side faces of the tongues are machined flat and square with the rest of the unit. Wedges 9 clamped to the portions 5, 6 hold the tongues 7, 8 in the adjusted position. The upper and lower casings 1, 2 are also provided with horizontally disposed lugs 10, 11. The underfaces of the lugs 11 are inclined downwardly and outwardly in substantially radical planes and rest on tapered wedge pieces 13 supported on shoulders 14 attached to the pedestal portion 4. The wedge pieces have tongues 15 which engage grooves 16 in the underside of the lugs 11. Screws 17 are provided for adjusting the lateral position of the wedges and retaining studs 18 passing through holes in the wedge pieces 13 and lugs 10, 11 maintain these members in the adjusted position. The wedges 9, 13 allow the casing to be adjusted relative to the pedestal.
Patent GB-1209536-A (GB)
Title: Automatic charging and pressing machine for the continuous production of detonators
Inventor: MAKAY NICOLAS
IPC: B30B11/10
Filed: 1968-06-20
Abstract: 1,209,536. Cleaning; Dispensing measured quantities of explosive. F. G. KRETSCHMER & CO. 20 June, 1968, No. 29555/68. Headings B8N and B8X. [Also in Division F3] Device for feeding detonator cases with measured quantities of explosive, comprising supply and discharge hoppers 33 and 34, Fig. 5, and an intermediate rotary slide valve 26 having a pocket 32 for containing explosive, the valve being actuated by a feeler pin 27 which drives a rack and pinion mechanism 30, 31 when the device is lowered and the feeler pin abuts the operating rod 28 of an eliminator 29 provided on a rotatable table 1 carrying the detonator cases. If an inadequate quantity of explosive has been introduced into the detonator case in a first filling step, then in a second filling step, the feeler pin passes through a bore 35 in the operating rod 28 and further filling is prevented. An apparatus for cleaning the filled detonators 21, Fig. 9 comprises a rotating drum 52 containing sawdust 53 as the cleaning medium. The drum is tilted towards one end, whereby the detonators and sawdust travel along the drum and are separated in a perforated region of the drum.
Patent GB-773180-A (GB)
Title: Pressure rupturable record material
IPC: B41M5/128
Filed: 1955-08-18
Abstract: 773,180. Printing processes. NATIONAL CASH REGISTER CO. Oct. 18, 1955 [Nov. 9, 1954], No. 29651/55. Class 100(2) Record material sensitized with particles of an adsorbent colour-reactant substance adapted, when brought into contact with an organic adsorbate colour-reactant substance including an oxidisable compound, to produce a distinctive colouration on the record material is characterized in that a zone of the sensitized record has applied thereto a highly polarized, non-volatile, non-colour forming, adsorbent substance adapted to be adsorbed by the adsorbent substance applied to the zone such as to prevent the adsorbent substance applied to the zone from reacting with the adsorbate colour-reactant substance to oxidize the oxidisable compound to form colour. As shown a three-sheet form is bound at the top 20, the rear 24 of the first sheet 21 being coated with a rupturable gelled hydrophilic, colloid film containing the droplets of colour reactant. The second sheet 25 has on its top surface the adsorbent sensitizing particles but on the area 26 it has been desensitized by the non-volatile, non-colour forming, adsorbent substance. The rear surface 27 of the second sheet is coated in the same manner as the rear of the first sheet and the top of the third sheet in the same manner as the top of the second sheet. The following non-volatile compounds may be used for desensitization; cationic quarternary ammonium salt such as alkyl trimethyl ammonium chlorides of the general formula R-N(CH 3 ) 3 C1 where R is any long chain alkyl group higher than the octyl group, aryl trimethyl ammonium chlorides of the. general formula R-N(CH 3 ) 3 C1 where R is an aryl group, and dialkyl dimethyl ammonium chlorides of the formula R 2 N(CH 3 ) 2 C1 where R is any long chain alkyl group higher than the octyl group; aliphatic or aryl amine acetates in which the aliphatic or aryl groups are higher than the octyl group; amines and diamines of high molecular weight; and substituted oxazoline.
Patent GB-1085170-A (GB)
Title: A process for the alkylation, transalkylation or isomerisation of hydrocarbons
IPC: C07C2/54
Filed: 1966-07-01
Abstract: Alkylation, transalkylation and isomerization of hydrocarbons are carried out an elevated temperature in the presence of an alkyl halide and a zinc halide catalyst prepared by absorbing a zinc halide from an aqueous phase on to a porous substrate (e.g. alumina gel or silica gel) and treating the thus impregnated substrate with a hydrogen halide at elevated temperature. Hydrogen may be present during any of the reactions.  Examples describe the alkylation of benzene with propylene to give cumene, and with t-amylene to give t-amyl benzene; the transalkylation of benzene and diisopropylbenzene to give cumene; and the isomerization of n-hexane (presumably to isohexane).
Patent GB-1280872-A (GB)
Title: Liquid pumping arrangement
IPC: B01D29/00
Filed: 1969-06-12
Abstract: 1280872 Filtering apparatus MONOGRAM INDUSTRIES Inc 12 June 1969 [14 June 1968] 29778/69 Heading B1D (Also in Divisions E1 and F2] A recirculating pump type sanitary closet comprises a pumping chamber, a liquid reservoir, and a filter comprising a filter plate having at least one aperture, affording communication between the pumping chamber and the reservoir, and a needle arranged to reciprocate axially in the or each aperture, the spacing between aperture and needle determining the maximum size of particle which will pass through the filter. In the embodiment of Figs. 3 and 7, a plurality of needles 80 extending through apertures 78 in a filter plate 76 are secured to a rectangular mounting plate 84 carried by a rod 58 which is axially reciprocated by a diaphragm 48 driven in one direction by compressed air supplied by an inlet pipe 46 to a driving chamber 50 formed between the diaphragm and lower wall 42 of pump and filter assembly 30', a spring 56 being arranged in a second chamber 52 of the assembly to return the diaphragm. The liquid component of the contents of a reservoir in which the assembly 30' is immersed is drawn through the annular spaces 82 between the needles 80 and the apertures 78 and through a non-return valve 88 into the second chamber 52 upon downward movement of the diaphragm under the action of the spring 56, and is pumped via a non-return valve 72 into a pipe 70 leading to a flushing ring of the closet bowl when the diaphragm is moved upwardly by the admission of compressed air to the chamber 50. An aperture 86 through which the rod 58 passes is of a size such that a small amount of the liquid flows backwardly through the apertures 78 during the pumping stroke which assists the needles in their operation of maintaining the spaces 82 clear of solid material. In a modification (Fig. 6, not shown) the needles (180) are fixed and a filter cylinder (174) incorporating the filter plate (176) is reciprocated to provide the pumping action and relative movement between the filter plate and the needles. The initiation and the control of a pumping cycle for flushing the closet are effected by manual depression of the operating button of a change-over valve (see Division F2). In another embodiment, Fig. 8, initiation is by an electric switch controlling an electric motor 258 which drives an impeller 262 which reduces the pressure in the filtered liquid in chamber 252 and delivers the liquid to outlet pipe 270 leading to the flushing ring of the closet bowl, a branch pipe 246 leading to chamber 250 whereby diaphragm 248 is moved upwardly against the action of a spring 256 to operate needles 280 in filtering apertures 278.
Patent GB-890756-A (GB)
Title: Improvements in and relating to thermionic valve circuits
Inventor: AZELICKIS ALEXIS NICHOLAS
IPC: H03G3/22
Filed: 1959-09-01
Abstract: 890,756. Valve frequency selective circuits; automatic gain control arrangements. OAK MANUFACTURING CO. Sept. 1, 1959, No. 29782/59. Classes 40(5) and 40(6). A valve circuit including two valves connected in series, with a conductive connection between the anode of the first and the cathode of the second, has means for maintaining the control grid of the second valve at a potential intermediate that between the anode of the second and the cathode of the first valve. A cascade circuit for facilitation automatic gain control in a television receiver includes a potential divider 25, 28 which form a biasing circuit for the control grid of the valve 11, the cut-off characteristic of the stage being controlled by the relative values of these resistors. The characteristic is further influenced by the addition of resistor 34. In an alternative embodiment (Fig. 2) suitable for tuning over a band of frequencies, an inductor 40 is included between valves 10 and 11 and neutralizing is provided by capacitor Cn and inductor 41. An additional resistor 48 is provided to further influence the cut-off as the automatic gain control voltage is varied. Curves showing variations of characteristics with bias on valve 10 are given.
Patent GB-536377-A (GB)
Title: Improvements in or relating to direction finding systems
IPC: G01S1/02
Filed: 1939-11-10
Abstract: 536,377. Directive wireless systems. STANDARD TELEPHONES & CABLES, Ltd., BEATTY, W. A., and CHATTERJEA, P. K. Nov. 10, 1939, No. 29805. [Class 40 (v)] A beam rotated constantly at frame-scanning frequency, is modulated with television signals which are derived from a diagram so as to indicate in sequence their compass orientation, whereby a distant mobile receiver is given an indication of its bearings. The transmitted signals are derived by scanning the screen of a cathode ray tube which is prepared as shown in Fig. 2, so that each quarter-section develops signals characteristic of its compass bearing. The scanning movement of the electron stream is controlled horizontally by voltages derived from a saw-toothed oscillator and vertically by voltages derived from a potentiometer, Fig. 3, in which a rotating arm 38 moves constantly over a circular winding 33 connected across a battery 41. The received signals are of the kind shown in Fig. 6, and comprise the letter A and its equivalent Morse code, together with a timemodulated signal 56 in which the leading or trailing edge is typical of the compass sector in question. Synchronous signals for the receiver are transmitted from the beacon either omnidirectionally or on a wider beam than that used to transmit the bearing indications. The brightest horizontal line 56, Fig. 6, of the signals is selected, and its trailing edge then indicates the bearing of the receiver on a calibrated scale (Fig. 7 not shown). Specifications 523,575 and 524,671 are referred to.
Patent GB-340566-A (GB)
Title: Method for the production of sound records for mechanical sound reproduction
IPC: G11B7/28
Filed: 1929-10-02
Abstract: 340,566. Recording sound in association with kinematograph pictures. NAAMLOOZE VENNOOTSCHAP KUCHENMEISTER'S INTERNATIONALE MAATSCHAPPIJ VOOR SPREKENDE FILMS, AMSTERDAM-BERLIN, 43, Mauerstrasse, Berlin. Oct. 2, 1929, No. 29832. Convention date, Oct. 6, 1928. [Class 40 (ii).] Grooved sound-records for mechanical reproduction synchronously with kinematograph pictures are made on discs or cylinders by first making a photographic sound record on a film along with the picture record in any desired order, cutting the film bearing the sound record and the corresponding picture record and assembling the parts of the film in the required order of reproduction, and finally making the grooved record corresponding to the reconstituted film by the use of known copying means such as an electrical cutter operated by currents derived photo-electrically from the optical record. An alternative method of making the grooved record is by photographically printing and etching. The sound and the pictures may be originally recorded synchronously on separate films, instead of on the same film. The Specification as open to inspection under Sect. 91 (3) (a) states also that during the reassembling of the original sound record, the less suitable parts may be omitted or other parts may be substituted. This is not explicitly stated in the Specification as accepted.
Patent GB-461921-A (GB)
Title: Devices for cooling draught beverages and other liquids
IPC: F25D31/00
Filed: 1935-10-29
Abstract: 461,921. Cooling liquids. FREEMAN, L. H. Oct. 29, 1935, No. 29882. Divided out of 454,373. [Class 29] A cooler for beverages drawn from barrels &c. comprises a heat-insulated tank, preferably with double walls of metal, containing water or other liquid 51 cooled by a refrigerant coil 52, the liquid to be cooled being passed through one or more straight tubes 50, of metal or glass, immersed in the cooled liquid, and preferably inclined as shown. The straight tubes may be fitted outside the tank with unions 53 for connection with the beverage draw-off conduits. Several different beverages may be cooled simultaneously in separate straight conduits, or the conduits may be connected for series flow of a single liquid. Heating means controlled by a thermostat, which may also control the refrigerating circuit, may be provided to prevent overcooling. The tank may have a hinged or sliding lid 49. Reference has been directed by the Comptroller to Specification 1690/03, [Class 29].
Patent GB-918708-A (GB)
Title: Improvements in or relating to builders' requisites
IPC: E04B9/18
Filed: 1960-08-31
Abstract: 918,708. Ceiling hangers; floors. DISON, H. B., and DISON, G. F. July 21, 1961 [Aug. 31, 1960], No. 29955/60. Class 20 (4). A ceiling hanger comprises a metal strip 20, Fig. 4, bent to approximately U-shape, and at least two wire legs 21, 22 secured to said U- shaped strip and extending in a direction generally opposite to that of the arms 24 of the U-shaped strip. The legs 21, 22 may be disposed in a line transversely of the U-shaped strip as in Fig. 4, or longitudinally of the U- shaped strip as in Fig. 5. The wire legs may be formed as a loop which is secured to the U- shaped strip either at outer ends of the loop as in Fig. 4 or at the bend of the loop as in Fig. 5. The legs may be welded to the U-shaped strip. In the Fig. 5 arrangement, the outer ends of the loop may be connected together. The arms of the U-shaped strip are formed with holes 23 for receiving nails by which ceiling battens 29, Fig. 2, may be secured to the hanger. The hangers may be used with floors formed of precast beams 27, Fig. 2, by bending the wire legs over a beam or by twisting the legs together above a nail or small bar bridging adjacent beams as in Fig. 3 (not shown). The hangers can also be used when the precast beams are spaced apart by filler blocks. Numerous alternative forms of the hanger are disclosed.
Patent GB-536340-A (GB)
Title: Improvements in or relating to portable electric light units or apparatus
IPC: F21L13/06
Filed: 1940-04-05
Abstract: 536,340. Dynamo lamps. BIANCO, J. CAPO-. April 5, 1940, No. 30002/39. [Class 39 (ii)] [Also in Group XXXV] A portable electric lamp is supplied from a dynamo mounted in the lamp between plates and driven by a spring motor housed in the casing 1 and driving through step-down gearing. The spring motor comprises a series of connected units wound up by means of a sleeve through pawl-and-ratchet mechanism contained within the sleeve. The generator comprises a rotary magnet consisting of pole pieces mounted on a disc with lead filling, the magnet being rotated within stationary armatures. When out of use the magnet is held from rotation by a pivoted rocking member 31 carrying a spring-. pressed plunger 32, and when this is moved over to free the generator a frictional-drive starting impulse is imparted.
Patent GB-863332-A (GB)
Title: Improvements in wringing machines
Inventor: HAWORTH WALTER JAMES
IPC: D06F45/00
Filed: 1958-09-19
Abstract: 863,332. Shaft couplings.. WHITTAKER BROS. (ACCRINGTON) Ltd. Sept. 16, 1959 [Sept. 19, 1958], No. 30015/58. Class 80 (2). A handle 24 is detachably secured to a roller 10 of a wringing-machine by a sleeve 40 freely mounted on a reduced part of a shaft 34 of the handle and having screw-threaded or bayonet engagement with a hollow roller shaft 12. The inner end of the sleeve 40 abuts a shoulder on the handle shaft 34 to prevent its withdrawal; and a driving connection is formed by a tongue 38 on the shaft 34 and a slot 22 in an insert 18 fixed in the bore of the roller shaft, or by a slot in the shaft 34 and a tongue on the insert. In a modification, external threads on the shaft 12 are engaged by internal threads on the sleeve 40, and part of the bore of the sleeve is enlarged to accommodate the full diameter part of the handle shaft. Specification 745,174 is referred to.
Patent GB-240679-A (GB)
Title: Improvements in ice-cream freezers
IPC: A23G9/10
Filed: 1924-12-15
Abstract: 240,679. Wright, F. H. Dec. 15, 1924. Containers.-The tub 2 of a power-driven icecream freezer is supported within or upon the bowl-holder yoke or ring 1 of a vertical cakemixer by means comprising a strong metal ring 3 secured to the outside of the tub and bolted to or resting on the ring 1, the cross-bar 7 of the driving-mechanism 13 of the freezer being detachably engaged with the upper ends of two pillars 4, 5 carried by the tub ring 3. These pillars may, as shown, be bolted to the ring 3, or may be integrally cast therewith. The ring 3 may be replaced by segments, which may be spaced apart. One pillar 5 may be slotted to receive one end 6 of the cross-bar 7, the other pillar having a flange 8 to be engaged by a handclamp 10 on the other end of the cross-bar and a boss 12 to enter a slot 11 in the cross-bar, or the pillars may be shaped to be engaged by a handclamp at each end of the cross-bar. The pillars may be fitted with lifting-handles.
Patent GB-619986-A (GB)
Title: Improvements in or relating to power transmissions
IPC: F16H21/20
Filed: 1946-10-09
Abstract: 619,986. Mechanically - actuated valves. READ, F. W. Oct. 9, 1946. No. 30138. [Class 135] [Also in Groups XXIV and XXXIII] The actuation of a piston valve of a hydraulic system by a continuously rotating eccentric cam 23 is controlled. by a pair of wedges 18, 19 coupled to the cam follower 22 and engaging a pin 16 on the stem 17 of the valve. Normally a sufficient clearance is provided between the abutment faces 20, 21 of the follower and the wedges 18, 19 so that, when the relative position of the wedges is adjusted by tilting a lever 24 to which they are pivoted, the valve is moved by impulses from the cam 23 until it reaches the desired position when the clearance takes up the continued oscillation of the follower. If desired, however, the clearance may be such as to maintain the valve in a state of continual " dither ". The lever 24 is actuated from a control member 30 through a lever 28 with pin and slot connections 27, 29.