baber/WOPTO huggingface dataset:
Patent GB-587502-A (GB)
Title: Improvements in direction finders
IPC: G01S3/06
Filed: 1944-11-28
Abstract: 587,502. Radio direction finding ; artificial lines. STANDARD TELEPHONES & CABLES. Ltd., and ARMSTRONG, L. J. HEATON-. Nov. 28, 1944, No. 23751. [Classes 40 (iii) and 40 (v)] Relates to D.F. systems comprising one or more pairs of spaced aerials, the aerials being connected to a receiver by transmission lines of equal given lengths, and a non-directional aerial coupled to the receiver by a transmission line of length different from the given lengths. According to the invention, means are inserted either in the transmission lines connected to the spaced aerials or in the transmission line connected to the non-directional aerial for maintaining the relative phase of the signals at the receiver constant over a broad band of frequencies. The invention is described as applied to an Adcock aerial as used in the D.F. system disclosed in Specification 490,940 in which the signals from each opposed pair of aerials 1, 2 and 3, 4 are combined in opposition due to the transpositions in the coupling lines 6, 7 and the resultant signals are fed over lines 9 and 10 to the receiver where they are modulated with different frequencies, the resultant modulation products being combined with a signal from the omni-directional aerial 5 and fed to a cathode-ray tube indicator. In such a system, the resultant signal from a pair of spaced aerials 1, 2 may be brought into phase with the signal from the omni-directional aerial 5 by making the length of the line 6<1> from each aerial to the line 9 equal to A/4, i.e. total length of line 6 equals #/2, the length of the line from aerial 5 being then made equal to line 9 ; such an arrangement only holds for a single frequency and in order to obtain correct phasing over a broad band of frequencies, e.g. 30- 100 Mc/s., the length of line 61 is made less than #/4 and a phase advance network 16 is inserted in the line from aerial 5 such that the sum of the phase lag in line 61 and the phase advance in network 16 is equal to 90 degrees for all frequencies within the band. The equivalent # network 15 for a line 6<1> of electrical length 0 degrees is shown in Fig. 5 and if tho inverted form of this, Fig. 6, is used as the phase advance network 16, the necessary conditions are met since the phase lag of line 6<1> increases with frequency and the phase advance of network 16 decreases with frequency. Alternatively, the phase-advance network could be inserted in the lines from the dipole pairs.
Patent GB-358188-A (GB)
Title: Improvements relating to electric cable joints
IPC: H02G15/10
Filed: 1930-08-08
Abstract: 358,188. Cable joints. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ohio Brass Co. ; Mansfield, Ohio, U.S.A.) Aug. 8, 1930, No. 23836. [Class 38 (i).] A joint for metal-sheathed cables is enclosed in one or more preformed sleeves of insulating material that cover the exposed cable insulation and extend to the ends of the metal sheaths. The sheaths 13 are clamped or wiped to the joint casing 26, 27, and the tapered ends 35 .. 38, Fig. 1, of the sleeves 28, 29 are metallized and connected by springs to the casing. Leakage along the surface of the sleeves is restricted by metallized pockets 39, 40. In another form, Fig. 2 (not shown), the metallized surfaces 35 .. 38 are continued into longitudinally extending pockets in the thicker part of the sleeve. In that figure a right- and lefthand screw coupling is shown, the cable insulation being tapered off on each side thereof and enclosed in small sleeves having pockets in their ends extending longitudinally back from the coupling. In another form, Fig. 3, the sleeve is built up of two interengaging parts 61, 62 and an outer member 72. Metallized pockets 76, 77 reduce leakage through the joint between the parts 61, 62, and a metallized surface 75 at the end of these parts may extend into pockets 80. Where the parts 61, 62 do not extend to the end of the casing 68, 69 a taped extension covered with metal foil may be added. Oil &c. may be introduced into the joint casing either by removing plugs 78, 79 or through a hollow cable.
Patent GB-949659-A (GB)
Title: Generating system
IPC: H02K11/04
Filed: 1962-06-21
Abstract: 949,659. Making dynamo-electric machines. MOTOROLA Inc. June 21, 1962 [June 29, 1961], No. 23946/62. Heading B3A. [Also in Division H2] The axial length of a stator stack is rendered adjustable to fine tolerances by deforming each lamination 85 between dies 86, 87, Fig. 8, to form projections 90, assembling the stack with the projections in register, Fig. 9, and compressing it to the desired length between jaws 91, 92. The stack is then welded.
Patent GB-635554-A (GB)
Title: Improvements in or relating to fluid-flow controlling devices
IPC: F24F13/065
Filed: 1947-06-12
Abstract: 635,554. Ventilators. CRITTALL & CO., Ltd., R., and McDONALD, R. June 12, 1947, No. 23959/46. [Class 137] [Also in Group XXIX] In a ventilator of the type where a ball 3 has openings 20, 21, on opposite sides and air traverses the ball which is movable in a socket 1, 18, to direct the stream in any direction or reduce or cut off the stream, the opening 21 is fitted with co-axial spaced diffusing elements 44, 45, 47, 49, of which the central one 44 is a disc. The ball is rotatable in the socket 1 by the semi-circular handle 54 attached to the spindle 4, while the socket 1 is rotatable about an axis at right-angles to the spindle by a flange on the socket 1 sliding under a flange 14 on a ring 15 by which the device is attached to a pipe or other means of air supply. The ball may be mounted in the socket 1 by stub spindles, in which case it is rotated by finger contact. The ball is rendered airtight in its socket by a lining 19 of felt, velvet or other material.
Patent GB-141279-A (GB)
Title: A scoop for transporting building and other materials
IPC: E04G21/00
Filed: 1919-10-02
Abstract: 141,279. Letourneau, J. P. Oct. 2, 1919. Skips.-A skip particularly intended for conveying building materials is shaped as shown and provided with handles e having notches h in such a position that, when engaged by the hooks of hoisting cables, the skip is tilted backwards. The skip can be filled by holding the handles and forcing it into the material.
Patent GB-533167-A (GB)
Title: Improvements in, and connected with, overload released switch mechanism
IPC: H01H71/16
Filed: 1939-08-22
Abstract: 533,167. Electrically-released. switches. CRABTREE & CO., Ltd., J. A., and McLOUGHLIN, H. F. Aug. 22, 1939, No. 24120. [Class 38 (v)] An overload-released switch in which an operating handle is rotatable to either side of a neutral position to move either of two spring-contact blades c into engagement with fixed contacts 10, from which it can be thermally released, notwithstanding the handle is held in closed position, comprises a series of such contacts c arranged in compartments as in Specification 533,166 and operated each by an insulating cam b on a spindle a. The latter fixedly carries a lever e to the ends of which are pivoted at k<2> a pair of levers k, k<1> interconnected by a spring x and at k<3> by a pair of links l, l<1>, the common pivot m of which is on a disc n rotatably mounted on shaft a. The disc n has a notch o engageable by a pin p on a lever q which is pivoted at q' to the frame and urged on to the disc by spring r. The lever q also carries a spring blade s which co-operates with a stop pin w, over which is slidable a sleeve t on a bi-metal ambienttemperature compensating strip u, the arrangement being such that, when the strip u is moved by a trip bar v, which is common to the thermal elements of all the poles or phases, the sleeve t pushes the blade s until it slips up past the pin w, Fig. 5c. Each lever k, k<1> is formed with a surface for co-operating with a roller j on a crank i on the handle-operated shaft h, the surfaces each having a crest such that when the roller slips past the crest, the reaction tends to hold the parts in the displaced position. Figs. 4a 4b show opposite faces of the mechanism in the neutral position and Figs. 5a, 5b are similar views in one of the operative positions in which the pin p engages a side surface of the notch o to lock the disc against further anti-clockwise rotation. When s is released, the disc is freed and the position of symmetry of the parts is restored and the spindle a' rotates slightly to separate the contacts. On release of the handle, the spring blades c act on the parts to restore them to the Fig. 4a position. The Provisional Specification refers also to Specification 533,163 and describes a construction employing a toggle and latch interconnecting the arms k, k'.
Patent GB-241878-A (GB)
Title: Improvements in pneumatic door control mechanism for motor buses
IPC: E05F11/12
Filed: 1925-09-28
Abstract: 241,878. National Pneumatic Co., (Assignees of Forman, P. R.). Oct. 25, 1924, [Convention date]. Operating doors pneumatically and by crank and toothed-gear mechanisms; stops. - For operating the hinged door of a motor omnibus, a pneumatic motor connected by a single link with the door is supplied with air under pressure from a storage tank that is maintained at a constant pressure by the power unit of the omnibus, a valve controlling the compressed air to the motor being located near the driver. In the arrangement shown, the folding doors 1, 2 are connected by a link 6 with a motor 7, the supply of compressed air to which is controlled by a valve 9 with a handle 8 conveniently positioned near the driver. A storage tank 13 on the vehicle communicates with the valve through a pipe 12, and with one or more accumulators 15 through a pipe 14. These accumulators may be in the form of a suitable pump, which compresses air and feeds it to the tank 13 as the power plant is operated. The tank 13 is provided with a safety valve. The free edge of the door section 2 has a rubber nosing 16, Fig. 5, to permit the door to close tightly without slamming. Specification 13915/13 is referred to.
Patent GB-1602308-A (GB)
Title: Apparatus for and method of producing peeled frozen tomatoes
IPC: A23N7/00
Filed: 1978-05-30
Abstract: The plant comprises a device (1) for freezing the tomatoes, a conveyor belt (2) that carries them to a brushing-machine (3), which effects mechanical cleaning without water, the second conveyor belt (2) conveying the tomatoes to the skinning machine (4) which works by abrasion. A grading belt (5) then conveys the tomatoes to the complementary freezing tunnel (6) to restore to the processed product the amount of negative temperature lost during the processing. The water required for the functioning of the skinning machine (4) is supplied via the conduit (7) from the freezer (1) or is drawn from outside. The stages of defrosting and refreezing are therefore avoided. The processing of the tomatoes is not seasonal, but can be carried out throughout the year. The organoleptic properties of the product are unchanged. <IMAGE>
Patent GB-934245-A (GB)
Title: Improvements in and relating to artificial fishing bait
IPC: A01K85/00
Filed: 1961-07-04
Abstract: 934,245. Fishing lures. J. M. BADDON. June 19, 1962 [July 4, 1961], No. 24185/61. Class 48. An artificial fishing bait comprises a partly or wholly transparent body 1 having vanes 5 and semicircular apertures 6 through which coloured strips 7 are inserted. The strips 7 may have artificial eyes 8. A metal tube 2 for a fishing line extends axially through the body 1 and has ribs 3 which engage slots in the body 1. Instead of the coloured strips 7, the metal tube 2 may be coloured. The coloured tube may be split longitudinally to facilitate replacement. In another embodiment a spoon bait comprises an oval metal disc enclosed in a transparent sleeve into which coloured tabs can be removably inserted. Alternatively, a transparent panel is secured at its edges to the spoon to form a pocket on the side of the spoon. The strips and tabs may be coated with a phosphorescent or fluorescent material.
Patent GB-615018-A (GB)
Title: Improvements in alloys
IPC: B23K35/30
Filed: 1946-08-14
Abstract: A brazing alloy consists of silver from 36.6 to 41.6 per cent, copper in an amount such that the silver-copper ratio is between 3.2 and 4 and a total amount of zinc and cadmium between 48 and 52 per cent, the zinc-cadmium ratio being between 0.7 and 1.2.  A specific alloy contains 40 per cent silver, 10 per cent copper, 50 per cent of zinc and cadmium together, the zinc-cadmium ratio being 0.85.
Patent GB-1191535-A (GB)
Title: Improvements in or relating to Photographic Development
Inventor: WILLEMS JOZEF FRANS
IPC: C07D215/38
Filed: 1967-05-24
Abstract: 1,191,535. Quinoline derivatives. GEVAERTAGFA N.V. 3 May, 1968 [24 May, 1967], No. 24191/67. Heading C2C. [Also in Division G2] 6 - Diethylamino - 1:2:3:4 - tetrahydroquinoline dihydrochloride is made by hydrogenation of 6-diethylamino-quinoline with H 2 / Ni and then treating the product with HCl. 1 - Ethyl - 6 - diethylamino - 1: 2: 3: 4 - tetrahydroquinoline dihydrochloride and 1-(4-sulphobutyl) - 6 - diethylamino - 1: 2: 3: 4 - tetrahyco. quinoline are made by heating 6-diethylamino- 1: 2: 3: 4 - tetrahydroquinoline with respectively (i) triethylphosphate and then HCI, and (ii) butane sultone.
Patent GB-730451-A (GB)
Title: Improvements in photomechanical resist compositions
IPC: G03F7/038
Filed: 1953-09-01
Abstract: The cinnamic acid, o-chloro-, a -phenyl-, b -phenyl- or m-nitro-cinnamic acid esters of cellulose or a hydroxyl-containing derivative of cellulose such as esterification grade cellulose, hydrolysed cellulose acetate, hydroxyethyl (or propyl) cellulose or b -hydroxyethyl cellulose are made by heating the corresponding acid chloride with a dispersion of the cellulose material in pyridine, dilution with dioxane or acetone and filtration if required, and pouring into water to precipitate the ester.  The b -hydroxyethyl cellulose is made by precipitating an aqueous solution of commercial cellulose hydroxyethyl ether into a large excess of ethyl alcohol, washing the precipitate with fresh alcohol and drying. Specifications 365,250, 392,206 and 713,947 are referred to.
Patent GB-837936-A (GB)
Title: A process for the purification of an ester of terephthalic or isophthalic acid
IPC: C07C69/80
Filed: 1958-07-28
Abstract: Esters of terephthalic and isophthalic acids, or a mixture of these esters, are purified by contacting the ester in the liquid phase, preferably at a temperature of from 140 DEG  to 220 DEG  C., with oxygen or gases containing oxygen in the presence of a small proportion (e.g. 0.1 to 0.5% by weight) of copper or manganese compounds or a mixture thereof, the time of treatment being less than 5 hours when the temperature is more than 200 DEG  C.  The ester is preferably treated in the molten state; but an inert solvent may be employed, if necessary, in order to obtain the liquid phase.  A cobalt compound may be present in addition to the copper and/or manganese compounds.  The metal compounds are removed, after the treatment, by water-washing, or by crystallizing or distilling the ester.  In an example, dimethyl terephthalate, obtained by esterifying the acid produced by the oxidation of p-di-isopropyl benzene with air in the presence of cobalt and manganese compounds in an acetic acid medium, is distilled; and the white distillate, which contained 750 p.p.m. of the methyl ester of p-acetyl benzoic acid, is then treated, in the molten state, at 170 DEG  C., with oxygen for 1 hour in the presence of 0.5% by weight of manganese acetate.  The oxygen was passed through the molten ester at the rate of 3 litres per hour.  The ester was then rectified.  The product contained only 25 p.p.m. of p-acetyl benzoic acid ester: and it could be heated for 5 hours at 200 DEG  C. without turning brown.
Patent GB-1498224-A (GB)
Title: Apparatus for accumulating liquid pulses and for developing an elevated liquid pressure for subsequent release to the exterior
IPC: B05B9/08
Filed: 1975-06-05
Abstract: 1498224 Reciprocating pumps GRACO Inc 5 June 1975 [29 Aug 1974] 24270/75 Heading F1A [Also in Divisions B2 and F1] A paint sprayer comprises a motor 10 operated by a trigger 16, a piston 25 reciprocated by the motor through gears 11 and 12 and eccentric shaft 18, a paint container 30 from which the piston draws paint through suction tube 31, a first chamber 32 into which the pulses of paint are admitted by a non-return ball-valve, and a second chamber 33 connected to the first chamber and being formed in a resilient first member 28 against which rests a second member 50 having an outlet passage therein closable by a valve (55), Fig. 2 (not shown), so that pulses of paint from the container build up the hydraulic pressure in the second chamber forcing the second member forward against the resilient member and when the pressure is sufficient the resilient member deforms to lift the second member from the valve and allow a pulsed high-pressure flow through the outlet passage. In modifications, Figs. 5A and 5B (not shown), the movement of the second member may be additionally or alternatively facilitated by spring washers being positioned adjacent or in place of the resilient member. In use the resilient member is reciprocated at 2,000 to 3,000 strokes per minute by a <SP>1</SP>/ 3  horsepower electric motor operating at 12,000 r.p.m. and the valve (55) will either remain open or, open and close at the same rate as the piston reciprocates to produce a high-pressure pulsed spray which appear continuous. With an outlet having an area of 0À013 sq. in. a peak hydraulic pressure of 2,000 to 2,500 p.s.i. is produced using water-base latex paint. A drainage passage 38 is provided from the cylinder in which the piston reciprocates.
Patent GB-837296-A (GB)
Title: Graphic recorder
IPC: G01D15/28
Filed: 1956-08-08
Abstract: 837,296. Recording-apparatus. VARIAN ASSOCIATES. Aug. 8, 1956 [Aug. 25, 1955], No. 24329/56. Class 106 (4). Recording-apparatus comprises a servo chassis 1 with two fixed side rails 18, 19 pivotally mounted on a chart drive chassis 23 by means of a hinge rod 21, a servomotor in the first chassis 1 driving a pen 16 on a rod 13 extending between the rails 18, 19 to record signals on a chart mounted in the second chassis 23. The servomotor 2 drives the pen holder 12 and a potentiometer shaft pulley 9 by cord or wire 6 wound round its drive pulley 5, the pulley 9 and idler pulleys 7, 8 in accordance with signals received at input terminals 41. A chart supply roll is mounted in slotted brackets and the chart is driven over a plate 28, under guides 29, 31 by sprocket wheels 27 driven by a motor 26 and may be taken up on a roller 42 in a slotted bracket 43 driven by cord 45 and pulleys 46 from the motor 26. The lower chassis 23 may be tilted back during operation if it is required to make notes on the chart paper. One variable X may be plotted against a second variable Y by using another servo chassis and coupling its servomotor to the paper drive shaft in the chassis 23 thus driving the paper in accordance with a second input signal. Two variables may be plotted against one another in polar coordinates by inverting one servo chassis over another and attaching a circular plate, with chart, to the servomotor shaft of the lower, with the upper servomotor driving the pen over a radius of the plate. If a constant speed drive for the chart is required the chassis 23 of Fig. 1 may be used with the motor 26 coupled to an upwardly extending shaft carrying the circular plate above the plate 28. A plurality of servo chassis may be set up side by side using a common hinge shaft and common motor to drive all the charts.
Patent GB-696123-A (GB)
Title: Improvements in and relating to swing or like tray bakery units
Inventor: WARRINGTON JAMES IRVINE DUDLEY
IPC: A21B1/46
Filed: 1949-09-22
Abstract: 696,123. Bakers' ovens. BAKER PERKINS, Ltd. Dec. 19, 1950 [Sept. 22, 1949], No. 24348/49. Class 51(ii) [Also in Group XXX] In a continuously travelling bakery conveyer unit of the swing or controlled level tray type for proving or baking dough in tins, each tray 3 comprises a bottom plate 5 extending between end plates 2 and formed with front and rear slots 6 defined by prongs 8 and a central support 7, the ends of the prongs 8 being bent upwardly, said prongs also co-operating with slots in charging and discharging comb platforms 10 and 11 respectively disposed in a chamber at the foot of the oven. As each tray approaches the discharging station B, the pivoted comb plates 16 are swung into a horizontal position leaving a clearance 17 for the passage of the central support 7, the tins are pushed on to a conveyer 21 by the ram 24 of pusher mechanism 15 and the comb plates 16 are swung down again so that if the ram 24 fails the tins fall back on to the tray and a switch mechanism 23 sounds an alarm. The charging comb platform 10 is fed with tins by an endless conveyer 18 mounted with its upper lap level with the platform, pusher gear 20 being provided for sliding the tins onto the fingers 9 of the comb plates 16. These latter may be swung downwardly if it is desired to load the oven by hand through the hatch 25 and further switch mechanism 26 may be provided to stop the conveyer if a tray still containing its load of tins approaches the loading station. In a modified tray construction, Figs. 4-7 (not shown) the tray platform is formed with a single comb arrangement of prongs and complementary fixed charging and discharging platforms are operated in a similar manner to that described above. If it should be necessary to discharge the trays at or on an ascending lap of the conveyer, the tins may be lifted off the trays by displaceable comb platforms as in Specification 696,122.
Patent GB-818907-A (GB)
Title: Improvements in or relating to door latches
IPC: E05C3/14
Filed: 1957-07-31
Abstract: 818,907. Door latches. TISSOT, W. July 31, 1957, No. 24354/57. Class 44 A latch such as a door latch comprises a frame including a securing plate 1 provided with a pair of lugs braced by a pin 4 on which is pivotally supported against the action of a return spring 20, a bolt 5 having a handle 6 and a beak 10 adapted to be secured at an adjustable distiance from said pin, the beak having a primary rack 15 engaging a secondary rack 16 provided on an arm 17 which is pivotally supported by the frame the latter serving as an abutment for one end of the return spring the other end of which presses the secondary rack against the primary rack so as to hold the beak at the required distance. The beak 10 is formed at one end of a slide 9 which is I-shaped in cross section, the web of the slide engaging a longitudinal slot in the remainder of the bolt so that the beak can be adjusted in relation to the pin 4. The arm 17 is pivoted to the frame by means of the pin 4. By manually depressing the arm 17 against the resistance of the spring 20 the slide can be adjusted to any desired position whereupon release of the arm engages the two racks to maintain the slide in the desired position.
Patent GB-322434-A (GB)
Title: Improvements relating to insulating covers for electrical switches, bell-pushes, ceiling roses and the like
IPC: H02G3/14
Filed: 1928-08-25
Abstract: 322,434. Crabtree, J. A., and Dolphin, J. R. Aug. 25, 1928. Moulding gums and resins.-Insulating-covers for electric switches, bell-pushes, ceiling-roses, or socket-couplings are moulded from a powder of the phenolic condensation type with a reinforcement of canvas &c. A layer of powder is first placed in the mould, then the reinforcement, and finally a second layer of powder. Alternatively, to produce a pattern, the mould may be sprinkled with powder before introducing the reinforcement, the main charge being placed over the reinforcement, or the bulk of the powder may be introduced before the reinforcement. After moulding, excess fabric is trimmed away. The fabric may be composed of natural or artificial fibres which may be proofed by impregnation with oils, resin, shellac, asphaltic or synthetic resin varnishes &c., either prior to, or during moulding. Reference has been directed by the Comptroller to Specifications 274,851 and 284,269 (as open to inspection under Sect. 91 (3) (a)), 228,565, 246,886, 274,851, 280,017, and 284,269.