baber/WOPTO huggingface dataset:
Patent GB-647260-A (GB)
Title: Improvements in receiver equipment for teleprinters
Inventor: COQUELET JULES
IPC: H04L27/26
Filed: 1947-08-26
Abstract: 647,260. Type - printing telegraphy. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. Aug. 26, 1947, No. 23509. Convention date, June 5, 1946. [Class 40 (iii)] A printing telegraph receiver for a system in which each character or symbol is represented by a single distinctive frequency comprises a number of vibrating blades tuned respectively to the various frequencies and allowed unimpeded vibration in response to a received frequency so that the corresponding resonant blade attains an amplitude sufficient to trip a spring-actuated relay system which supplies the operating power for printing the character or symbol. The assembly of blades is associated with a single magnet 3 and the reception of the appropriate frequency causes the blade 1 to attain its full amplitude and move a bar 4 to release a pivoted latch 5 from engagement with the end of a lever 7 biased by a spring 25 and which in its turn rocks a pivoted latch 8 to free one end of a pivoted lever 10. The other end of the lever 10 has a pin engaging in a groove G in an arm 11 pivoted at H and the operation of the latch 8 allows a relatively strong spring 16 to rotate the arm 11 which is connected by a link 13 to a type arm 12. A member 17 connected to all the arms, such as 11, is rotated during the printing stroke to operate a switch 22 energizing a comparatively powerful solenoid 20 which restores the arm 11 and printing arm 12 and allows the end of the lever 10 to be relatched with the consequent restoration of lever 7 and latch 5. The system may be utilized for secret transmission by transmitting a permutation of the frequencies allotted to the various characters and by employing at the receiver a second electromagnet 3<SP>1</SP> with the corresponding blades 1<SP>1</SP> tuned to the permuted frequencies.
Patent GB-189857-A (GB)
Title: An improved switch for controlling electric circuits
IPC: H01H15/18
Filed: 1921-09-03
Abstract: 189,857. Pritchett, W. J. Sept. 3, 1921. Switches, quick-action of the two-pole deadcentre compression spring type operated by a rectilinearly moving handle, comprise a pair of slotted parallel brackets A in which the handle member 10 slides and between which tubular members B are trunnioned at 5 containing spring plunger rods engaging slots in the handle member. The tubular members carry transverse insulating pieces 12 on which are mounted contacts 13 interconnected by fuse wires 15. In action, the plungers are pushed further into their containers until the dead-centre position is reached when the springs react to bring the contacts rapidly into engagement with the fixed contacts 14.
Patent GB-406729-A (GB)
Title: Improvements in fire bricks for domestic fireplaces
IPC: F24B1/191
Filed: 1932-08-25
Abstract: 406,729. Fuel-economizers. DINELEY, B., 32, Scalford Drive, Wollaton Park, Notting- ham. Aug. 25, 1932, No. 23783. [Class 126.] In a fuel-economizer or " fire-brick " of the kind provided with an opening 12 for the passage of gases from the fire, this opening is formed in the lower part of the front face and extends to, or close to, the lower edge, and is provided with a grid, the bars 13 of which are of less width than the spaces between them. The grid may be integral with the body of the economizer, or the body may be cast or moulded round it. The grid and body may be of different materials, for example, a cast-iron grid may be let into a solid fire-clay body. The economizer shown is preferably formed integrally of cast-iron and is of hollow form with side walls 11 having inclined bottom edges to tilt the economizer rearwardly. The front wall has a thickened portion or lip surrounding the aperture 12. The aperture may be semi-circular, as shown, rectangular, or of other shape. Specifications 18980/04 and 106,174, [both in Class 126], are referred to.
Patent GB-1423710-A (GB)
Title: Ovens
IPC: A21B1/44
Filed: 1973-05-18
Abstract: 1423710 Ovens DESPATCH INDUSTRIES Inc 18 May 1973 [19 May 1972] 23800/73 Heading A2A An improved rotary oven has mounted within an oven chamber 14 a series of vertically spaced, horizontally extending rotary baking shelves 22, 23 and 24 which are fixed to a vertically extending rotary shaft 26. The rotary movement of the shaft 26 and the baking shelves 22, 23 and 24 is controlled by an electric drive motor 29. A heater chamber 33 is located below the bottom wall 12 of oven chamber 14 and is fitted with a heater unit and heater blower assembly. Heated gas from blower 41 is discharged through its outlet 46 onto a supply conduit 47 which extends upwardly just inside the side wall 13 of the oven chamber 14. The conduit 47 includes an inclined partition or air supply plenum 48 which divides the conduit 47 into a right hand portion 49 which directs the heated gaseous fluid upwardly from the blower, and a left hand portion 51 through which the heated gas moves back downwardly to the desired oven compartments. The wall 52 of supply conduit 47, 49, 51 extends vertically of the oven and from front to back and is provided with adjustable slide members 53, 54, 55 which control the relative proportions of heated gaseous fluid fed into the oven chamber below each of the shelves 22, 23 and 24. The oven chamber may be provided with a horizontal shelf wall extending entirely across the chamber around each baking shelf so that each shelf wall and its rotary baking shelf cooperate to divide the, oven into compartments, i.e. a baking compartment above each baking shelf and a shelf-heating compartment below each baking shelf. A return conduit 89 between side wall 90 and inner wall 91 is also provided for recirculation of the heated gaseous fluid from the shelf heating compartments to the heater chamber 33.
Patent GB-1396220-A (GB)
Title: Bearing retainer
IPC: F16C33/44
Filed: 1973-05-18
Abstract: 1396220 Bearings HUGHES AIRCRAFT CO 18 May 1973 [5 June 1972] 23811/73 Heading F2A A ball bearing retainer comprises an annular body 18 of open pore, resilient, microporous material having sides generally perpendicular to the central axis of the annulus formed by the body, and respective annular reinforcing plates 21, 22 of relatively rigid material secured to said sides. The microporous material is preferably a polyurethane foam having a Shore A hardness of between 20 and 60, and hold between 40 and 80% by volume of a lubricating oil. The plates 21, 22 are of glass fibre, fabric reinforced epoxy resin, or metal, and are fixed together with rivets 25, or are adhered to the annular body by means of phenolic or epoxy resin adhesive. The ball pockets 20 are cylindrical or spherical in shape. The annular body 18 may be made by impregnating the microporous material with a water soluble resin to make it rigid, machining it, and then washing out the resin.
Patent GB-273531-A (GB)
Title: Improvements in railway switches
IPC: E01B7/08
Filed: 1926-09-27
Abstract: 273,531. Housken, M. S. Sept. 27, 1926. Crossings with movable parts; stub switches, pivoted; locking-bolts, camplates, and like devices.-Points and crossings have the ends of the stationary rails rigidly fixed to a tie structure consisting of a member lying alongside the movable rail so as to support the rail along its length and serve as a stop for the rail. In crossings, Fig. 1, the rails 5 - - 8 are fixed to members 9, 10 bolted to plates 12, while the movable rail a pivots on an horizontal pin 20 carried by the members 9, 10. The rail a carries sheet-metal guard plates 30, 31 to prevent the access of foreign material between the members 9, 10. In points, Fig. 7, the tie members 35 are secured to the outer rails of the tracks 36, 39, while the stub tongues 42, 43 each carry a guard 40. The rails 42, 43 are locked by a shaft 44, Fig. 10, supported in bearings 45 and carrying extensions 46, 47 engaging inside and outside the tie members 35. A similar shaft may be used to lock the crossing rails.
Patent GB-1144679-A (GB)
Title: Improvements in or relating to electrical component assemblies
IPC: H01C17/02
Filed: 1967-05-23
Abstract: 1,144,679. Capacitors. SIEMENS A.G. 23 May, 1967 [27 May, 1966], No. 23854/67. Heading H1M. Capacitor 1 is secured against vibration within housing 3 by introducing foamable material between it and the housing, and foaming the material. As shown, the foamable material, e.g. urea, phenolic or epoxy resins, or polyurethane, polystyrene or P.V.C. is enclosed with a foaming agent, e.g. ammonium bicarbonate in P.V.C. packs shown located beside capacitor 1 at 4, the packs expanding to clamp the capacitor. Alternatively shaped pieces or foils of the foamable material, preferably partially prefoamed, may be used.
Patent GB-1277194-A (GB)
Title: Improvements relating to the conveying of articles or other loads on carriers
Inventor: LAZENBY PETER
IPC: B65G51/03
Filed: 1968-05-21
Abstract: 1277194 Transport systems P LAZENBY and B B FORDHAM 13 Aug 1969 [21 May 1968] 24082/68 Heading B7L [Also in Division B8] Load carriers 16, supported on air jets 15, are propelled from a loading station (not shown) by a pneumatic ram to an unloading station 40 and are returned to the loading station by an air jet 26. Movement of the carriers is assisted by further jets 28. The carriers may be shaped to support powder, liquid or articles, such as swiss rolls 13. As shown, the unloading station 40 comprises a tray 42 provided with holes in its base 44 and pivotable to the position shown by means of a pneumatic ram. The system may be controlled manually or automatically.
Patent GB-1117664-A (GB)
Title: Improvements in or relating to acoustically operated ice detectors
Inventor: SEAGROVE DOUGLAS JOSEPH WILLIE
IPC: G01S15/04
Filed: 1965-06-08
Abstract: 1,117,664. Ice detectors on aircraft. GLASS DEVELOPMENTS Ltd. 6 June, 1966 [8 June, 1965], No. 24225/65. Heading B7W. [Also in Division H4] Apparatus for indicating the presence, thickness and rate of formation of an ice layer on, for example, an aircraft comprises an ultrasonic transmitter and a receiver spaced from each other and acoustically coupled to an ultrasonic-wave conductor, the presence of an ice layer on the conductor causing a change to occur in ultrasonic signals reaching the receiver. In the embodiment of Fig. 1, ultrasonic waves, preferably pulsed shear waves, pass from transmitter 12 to receiver 16 via the path 30-32-34 in a brass plate 10 faired into an aircraft wing. When an ice layer 36 is present, the waves also traverse path 30-32-38-40-42. The difference in path length introduces a phase difference between waves received via the two paths and the signal output level from receiver 16 may be calibrated in terms of ice thickness. Reduction of the output level below a preset value may cause energization of heaters for de-icing the aircraft and plate 10, and the frequency at which the de-icing cycle is repeated provides a quantitative indication of the icing rate. Control circuitry, which may be coupled cyclically to a plurality of ice sensors (transmitter/receiver pairs) and which also provides time-gating of the receiver output signal to eliminate spurious signals, is described (Fig. 3, not shown). In a second embodiment the path length in plate 10 is such that the ultrasonic waves undergo multiple reflections at the plate boundaries (Fig. 2). Transducer details.-The transmitter 12 and receiver 16 comprise lead zirconate or barium titanate plates on methyl methacrylate coupling blocks 14, 18 shaped so that wave mode conversion, between longitudinal mode in the blocks and shear mode in plate 10, occurs at the interfaces between plate 10 and the blocks. The blocks are further shaped, as at 24, and/or may be coated on their free surfaces with acoustically absorbent rubber to reduce internal reflections. The transducer plates may be backed with absorbent acoustic loads 26, 28 to reduce the length of transmitted or received acoustic pulses.
Patent GB-317850-A (GB)
Title: Improvements in or relating to devices for damping mechanical vibrations
IPC: H04R1/16
Filed: 1929-08-09
Abstract: 317,850. Electrical Research Products, Inc., (Assignees of Wiebusch, C. F.). Aug. 25, 1928, [Convention date]. Phonographic recorders and reproducers; magnetic instruments. - In a device for damping the vibration of mechanical parts of the kind comprising a pair of spaced relatively movable members immersed in viscous matter which is caused to flow into and out of the space between the members by the relative movement thereof, the normal or mean distance between the two members is changed with change of temperature in accordance with the expansion and contraction of fluid contained in an auxiliary closed chamber. The invention is described as applied to damping the moving member of a phonographic recorder, the member being connected to the vane 14 adapted to oscillate in a mixture of polymerized linseed oil and kerosene in the damping unit 2. The compensating unit 1, which screws into the unit 2, comprises a piston head 3 mounted on a rod 10 and diaphragm 6, the latter serving as an oil seal between the damping gap 8 and auxiliary oil chamber 5 and flexing sufficiently to permit the piston to vary the gap in accordance with temperature changes. Specification 320,676 is referred to.
Patent GB-653316-A (GB)
Title: Improvements in and relating to the making of rollers especially for use in connection with printing and textile machinery
IPC: B41N7/04
Filed: 1947-09-04
Abstract: A method of making rollers, especially for use in printing and textile machinery, includes the steps of applying to a mandrel a bulk layer of rubber, vulcanizing the layer and then placing about it a layer of rubber mixed with a water-soluble salt, vulcanizing this surface layer and leaching out the salt to give a sponge-like structure.  Bondings of rubber cement may be applied between the inner bulk layer and the mandrel and between the surface layer and the inner bulk layer.  After vulcanization the inner bulk layer may be ground to increase the bond between it and the surface layer.  The sponge surface layer may be ground after vulcanization before or after leaching.  The rubber may be natural, or of synthetic material, e.g. neoprene, butadiene copolymers, polysulphide rubbers. Specifications 496,585, 563,374, [Group IX], and 648,275 are referred to.  The Specification as open to inspection under Sect. 91 describes also an outer sponge layer formed by applying to the vulcanized bulk layer a layer of latex foam formed by beating air into a vulcanizable latex composition to form a froth.  This subject-matter does not appear in the Specification as accepted.
Patent GB-997324-A (GB)
Title: Improvements in or relating to the production of acrylic acid
Inventor: BROWN CHRISTOPHER JOHN
Filed: 1963-06-20
Abstract: Acrylic acid, extracted from an aqueous mixture of acrylic and acetic acids by extraction with ethyl acrylate or acetate and subsequently recovered as base product by fractional distillation of the organic phase as in the parent Specification, is purified by subjecting the base product to a second fractional distillation at a base temperature of less than 90 DEG  C., preferably from 50 DEG  to 90 DEG  C., and a pressure of not less than 50 mm. of mercury and recovering the pure acrylic acid substantially free from acetic as a base product.  It is preferred to use a column of 30 theoretical plates and operate with a head pressure of 20 to 100 mm. of mercury. The example describes the use of a packed laboratory column operated as a continuous unit.
Patent GB-615873-A (GB)
Title: New or improved process and device for the manufacture of honey combs
IPC: B29C59/02
Filed: 1946-04-16
Abstract: 615,873. Moulding honeycombs. CLAXTON, C. GADD-, and BEITH, G. R. Aug. 16, 1946, No. 24517. [Class 87 (ii)] A machine for making honeycombs comprises a series of electrically heated formers 15 which are reciprocated and driven into a slab 33 of wax which is passed step by step across them. The formers are mounted on plates 10, 11, having a passage 13 between them, and a wedge block 9 and are reciprocated by a cam 30 on a shaft 40 which also rotates a one-tooth pinion 37 which moves the rack 36 and bar 34 carrying the wax slab 33, step by step. The melted wax from the cells made by the formers 15 runs through passages in the formers into the passage 13 which contains an electric heater and to the discharge pipe 29. Means may be provided for stopping the machine if the temperature of the formers falls below a predetermined amount.
Patent GB-991755-A (GB)
Title: Improvements in aircraft
Inventor: DENNING RALPH MURCH
IPC: B64C29/00
Filed: 1961-07-06
Abstract: 991, 755. Electric measuring systems. BRISTOL SIDDELEY ENGINES Ltd. June 27, 1962 [July 6, 1961], No. 24521/61. Heading G1N. [Also in Division B7] The sum of wing lift and the thrust of lifting jet engines in an aircraft is derived by balancing a beam 28 acted on by four capsules, of which 22 and 24 are connected to tappings in the lifting jet nozzles to measure their thrust, and 40 and 42 are connected respectively to total and static pressure heads. The total moment on the beam, representing the wing lift and jet thrust sum, is balanced by a spring 32, imbalance closing one or other of contacts 44 to operate a discriminator 45 and motor 46, which rotates a cam 50 acting on the spring to rebalance the beam. Motor 46 operates also an indicator 52, or automatically operates high lift devices when the sum exceeds a datum value. Capsules 22 and 24 may be rendered inoperative, so that the indicator 52 shows indicated airspeed. An adjustable spring 58 is preset to take account of engine operating conditions.
Patent GB-1039572-A (GB)
Title: Improvements in or relating to window guide and regulator means
Inventor: JEAVONS PHILIP SWINGEWOOD
IPC: E05F11/42
Filed: 1963-06-20
Abstract: 1,039,572. Window operating devices. WILMOT-BREEDEN Ltd. June 18, 1964 [June 20, 1963], No. 24531/63. Addition to 1,027,993. Heading E2M. Window guide and operating means for a vehicle sliding window 2 comprises two racks 7 with coupled pinions 4, to provide in use uniform guiding of the window as in Specification 1,027,993, an endless cable 15 wound windlass fashion around a drum 74 by a handle attached to spindle 13 (Fig. 2, not shown), the cable passing over idler pulleys 16 and being operably attached at 17 to a lower frame 6 of the window 2. The window is guided partly by nylon slippers 8 running in tracks 3 integral with the pressed steel racks 7 and partly by side guides not shown. The operating mechanism mounted on a plate 10 may be formed integrally with one of the racks 7 and one of the associated tracks 3 to facilitate ease of assembly in a vehicle door. The driving means may be motor driven.
Patent GB-381680-A (GB)
Title: Improvements in or relating to devices for cutting string or the like
IPC: A47F13/04
Filed: 1931-09-01
Abstract: 381,680. String cutters. HOLMES, J. E., Bungalow, Wilsham Road, Abingdon, Berkshire. Sept. 1, 1931, No. 24575. [Class 30.] A string cutter comprises two separate safetyrazor or other blades 5, 6 yieldingly pivoted on a T-slotted frame 2 so as to leave between them a V-shaped space into which the string is pressed, against spring-pressure, so as to be cut with a scissor-like action. A third fixed safety-razor blade 7 is arranged horizontally beneath the V-notch to complete the cutting of any strands passing therethrough. The blades 5, 6 are pivoted about their central holes on pins 10 riveted to the frame 2, the upper blade holes receiving flat-headed pins 12 slidable in arcuate recesses 14 in the frame and in a similarly shaped cover-plate 3. The frame recesses carry springs 15 acting on the pins 12 to control the pivotal movement, or alternatively there may be torsion springs surrounding the pivots 10. The cover-plate 3 is clamped to the frame 2 by a thumb-screw 4 passing through the central hole in the lower blade 7. A facing on the frame 2, or a separate washer adjacent the blade 7, provides for tight clamping of the latter.
Patent GB-1242767-A (GB)
Title: Improvements in or relating to traffic bollards
Inventor: SEARL ARTHUR NORMAN
IPC: E01F9/018
Filed: 1969-05-15
Abstract: 1,242,767. Traffic bollards. HILLS (PATENTS) Ltd. 10 March, 1970 [15 May, 1969], No. 24936/69. Heading E1G. [Also in Division F2] The upper portion 11 of a traffic bollard is secured to a base portion 10 by one or more fasteners which yield on impact, each fastener comprising a bolt 12 or the like on one portion which passes through an oversize aperture 16 in the other portion and carries a deformable or frangible washer 18 which on impact is pulled through the aperture. The fastening shown includes a nut 19 smaller than the aperture 16 and interconnects brackets 15, 20 welded to the side walls of the two bollard portions, there being a clearance X between the overlapping side walls. The washer 18 may be of soft metal or plastics.
Patent GB-984934-A (GB)
Title: Improvements in or relating to method and plant for rendering homogenous a single divided product of non-uniform quality or a mixture of two or more divided products introduced in fixed proportions
IPC: B65G69/10
Filed: 1961-07-10
Abstract: 984,934. Average discharge mixing apparatus. SOC. DES MINES DE FER DE LA MOURIERE. July 10, 1961 [Aug. 13, 1960; Jan. 13, 1961], No. 24950/61. Heading B1C. [Also in Divisions B8 and G1] A -method of rendering a granular product or mixture of such products homogeneous by depositing it in parallel layers to form a heap and reclaiming from the heap in parallel layers oblique to the deposited layers is characterized by causing the depositing and reclaiming operations to proceed simultaneously on a single stationary site in such manner that the heap progressively moves over the site. In Figs. 4 and 5, the heap is formed on an open circular site 12 over which a spreader feeder 15 oscillates in an arc defining the ends 4 and 7 of the heap 2, the limits of this are being displaced in the direction of the arrow F2 at each oscillation. Reclaiming is effected by a device (e.g. a scraper) 19 which removes material from the foot of the slope of fall at the highest end 4 of the heap. In Fig. 7 the site is an annular hopper 21 and the material is laid down in layers parallel to the slope of fall and reclaimed in horizontal layers through a slit 26 in the hopper base, both the feeder 24 and the reclaimer (not shown) moving continuously around the hopper. In Fig. 9 the site is a rectilinear hopper and the operation is similar to the Fig. 7 embodiment, the heap 111 progressing in the direction of arrow F until the leading edge 113 thereof reaches the end 116 of the hopper, when the depositing means 121 is returned to the end 118 and starts to form a new heap while the old one is still being reclaimed. The rates of deposition and reclamation may be controlled by the weighers A and B (see Division G1).