baber/WOPTO huggingface dataset:
Patent GB-1411356-A (GB)
Title: Compactors
IPC: H02K7/06
Filed: 1972-09-26
Abstract: 1411356 Refuse compactor HOBART CORP 26 Sept 1972 [21 July 1972] 36643/74 Divided out of 1411289 Heading B8C A compactor, e.g. for domestic refuse, comprising a housing 10 having a top 14, sides 16, 17 extending between the top 14 and a base 12, a receptacle 40 movable between a compacting position within the housing and a non-compacting position displaced therefrom, a ram 18 mounted in the housing in opposition to the receptacle when the latter is in its compacting position, and drive means 20, 24, 32, 36, 38, for moving the ram 18 into and out of the receptacle in compacting and retracting strokes, is characterized in that a filtering system 60 is disposed within the housing for reducing odours emanating from material placed in the receptacle. As shown, the ram 18 is vertically reciprocal within the housing 10 by one, or more, screw-jacks 38 and nuts 36 rotatable by a motor 20 through a belt-and-pulley mechanism 22, 24, and a chain- and-sprocket mechanism 34, 36. The compactor 10 includes a drawer 40 which is mounted on slides 42 for sliding movement between a compacting position beneath the ram 18 and a non-compacting position displaced outwardly of the housing, and preferably a hinged door 44. The housing 10 also preferably includes a safety interlock system, Fig. 4 not shown, to prevent actuation of the ram 18 when the drawer 40 is not centred beneath the ram. Means for circulating deodourized air within the housing 10 comprises a flat duct 50 which is located between the drawer 40 in its compacting position and the housing side wall 16 and has an intake 52 adjacent the open top of the drawer 40 and in which is mounted a circulation fan 58 driven by a two-speed motor 58. A duct outlet 54, positioned adjacent the bottom of the housing 10, has a filter 60 of odour-absorbing, or adsorbing, activated charcoal mounted therein by clips 62, 64, In a circuit, Fig. 5, not shown, the fan 56 operates for a time after each compacting operation in addition to the manual operation provided by the simpler circuit, Fig. 4, not shown. In another circuit, Fig. 6, not shown, for controlling the fan the latter is automatically operated at a higher speed for a predetermined time after each opening of the drawer.
Patent GB-1303120-A (GB)
IPC: C08F8/14
Filed: 1970-07-29
Abstract: 1303120 Increasing the molecular weight of polymers INTERNATIONAL BUSINESS MACHINES CORP 29 July 1970 [2 Sept 1969] 36665/70 Heading C3P [Also in Division G2] A process for increasing the molecular weight of a photosensitive polymeric ester of cinnamic acid, e.g. polyvinyl cinnamate (prepared by esterifying polyvinyl alcohol with cinnamoyl chloride), comprises dissolving the polymeric ester in an inert solvent and treating the polymeric ester with a base at a temperature which is sufficiently low to avoid significant saponification of the polymeric ester. Solvents specified are cyclohexanone, methylene chloride, chlorobenzene and tetrahydrofuran. The base used may be inorganic or organic, e.g. sodium or potassium hydroxide, ammonium hydroxide, sodium carbonate, n-butylamine or triethylamine; the base is suitably used in the form of an aqueous solution. In illustrated procedures the treatment is effected at room temperature. The photosensitive polymers can be exposed, e.g. to U.V. light in the presence of a thiazolinetype photoinitiator, to produce photoresists.
Patent GB-1478754-A (GB)
Title: Electric motor control systems
IPC: H02P1/46
Filed: 1975-09-05
Abstract: 1478754 Motor control circuits INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1975 [23 Dec 1974] 36723/75 Heading H2J In a control system for a motor having at least two stator windings angularly disposed about a rotor, direct current is sequentially applied to the stator windings in response to rotor position signals until the rotor reaches a desired angular velocity corresponding to the frequency of a source of reference pulses, at which time the windings are driven in a synchronous manner by pulses of a predetermined fixed duration and synchronized to the reference pulses. As shown in Fig. 1, rotor position sensors in the form of Hall devices 87, 88 and circuit 95 apply signals VS, VS, HS, HS to a logic circuit 10 which also has inputs for a direction of rotation signal DIR, a STOP signal, and the reference pulses REF CLOCK. For forward rotation a FWD signal from AND gate 33, a MDC signal from OR gate 18 and signals VS, VS, HS, HS are applied to AND gates 51, 57, 62, 68 as shown these gates providing respective outputs to energize sequentially the driver circuits 56, 61, 67, 72 of the windings 81, 82, 83, 84. The motor thus accelerates until the frequency of switching of a single shot 22 (under control of position signals VS-HS) slightly exceeds that of the reference pulses (as determined by counter 13) at which time the MDC signal is removed and an MSYN signal is applied, the drivers 56, 61, 67, 72 then being switched sequentially by AND gates 53, 59, 64, 70 which also receive signals A, A, B, B as shown from a counter 12 switched by the reference pulses. Deceleration to rest and reversal of rotation operations are also described. In a modification, Fig. 5 (not shown), digital sine and cosine generators (104), (105) are provided, their outputs being connected to respective junctions of the windings each via a d/a converter, a summing device and an amplifier. This ensures that, during synchronous operation, decreasing and increasing drives are applied to the windings. The reference pulses may have their frequency changed hyperbolically to vary the synchronous motor speed when a recording disc is driven in dependence upon the linear displacement of a transducer across the disc, Figs. 7-9 (not shown).
Patent GB-431909-A (GB)
Title: Improvements in pumps for liquid
IPC: F04B53/14
Filed: 1934-12-22
Abstract: 431,909. Pistons. SCHOENE, K., 6, Rondeel, Hamburg, Germany. Dec. 22, 1934, No. 36838. Convention date, Dec. 27, 1933. [Class 122 (i)] In order to avoid the mixing of oil and water and to reduce wear in a pump, the piston 6 of which is driven by a connecting-rod 3<1>, a crosshead 2, attached to the piston by a bolt 4, reciprocates in a guide 1, extending upward from the crank case into the interior of the piston 6.
Patent GB-1091008-A (GB)
Title: Improvements in brush holders for electrical apparatus
Inventor: WIGGS PETER KENNETH CLIFFORD
IPC: H01R39/38
Filed: 1965-08-31
Abstract: 1,091,008. Brush-holders for dynamo-electric machines. MORGAN COMPONENTS Ltd. Aug. 30, 1966 [Aug. 31, 1965], No. 37143/65. Heading H2A. In a brush holder of the class comprising a guide in which a brush slides in a direction lengthwise of itself, and loading means, including a spring, adapted to urge the brush towards one end of the guide, the loading means is supported in a mounting so as to be swingable about a pivotal axis intersecting the lengthwise centre line of the brush and engages the brush in a manner ensuring that the resultant load on the brush has substantially a line of action along the centre line. In Fig. 2A a brush 5 is located in a radial guide 10 and the loading means comprises two levers 27, 28, pivoted at 35, and a spring 29 anchored at 37 to lever 27 and at 38 to lever 28. Lever 27 (only) is pivoted at 32 to an outer mounting 30 so that in the operative position, as shown, pivot 32 lies on the centre line 16 of the brush. The point of contact of head 33 of lever 28 with brush 5 is also on centre line 16. When a spring-loaded catch 43 is released, the mounting 30 can be swung about a pivot 31 attached to guide 10 to withdraw head 33 clear of the guide and brush. In Fig. 3 the mounting 30 is a U-form lever having the base of the U embracing a block 54 and the two curved limbs 50 joined at their free ends by a pin 51. Lever 27 is also of U-form, and bell crank shape, having its longer free ends pivoted at 32 to mounting 30, and having at its shorter free ends an anchorage pin 37 for spring 29. Lever 28 is also of U-form having its free ends pivoted at 35 to lever 27 and having secured to its base a finger 58 with contact head 33; it also has an anchorage 38 for spring 29. The guide 10 has a trough-like extension 57 carrying pivots 53 about which mounting 30 may be swung when a screw 55 is released from a recess 56 on guide 10.
Patent GB-302606-A (GB)
Title: Improvements in propellers
IPC: B21J7/16
Filed: 1928-12-17
Abstract: 302,606. Zagorski, J., and Wesnigk, E. Dec. 17, 1927, [Convention date]. Screw propellers. - Propeller blades of moulded material have thick profiles at the roots for attachment to the boss which gradually thin toward the blade proper. The blades are finished by a rolling process, the outer parts being then twisted to the proper pitch. The propellers, or blades, may be cut from a block. The unfinished blocks are supported on a table between adjustable rolls, the table being driven by rack and pinion off the main drive for the rolls. For small two-bladed propellers, a block is cast with a thin central region and is cut across to provide a number of similar sections ready for rolling. For large two-bladed propellers, separate blocks are cast having the shape, Fig. 3, and the sections, Figs. 5 and 6. For the rolling operation upper and lower rolls 11, 12. are shaped to produce the requisite sections on the blades which are carried by a table 13, Figs. 9 and 10, having a lot 16 to provide a space for the roll surface 17 of the lower roll 12. The rolls are driven by gear shafts and pinions on the lower roll shaft engage racks in the table 13. The supporting rollers 14 of the table may be free or geared to the table drive. The rolls are adjusted by gears 24, 25.
Patent GB-1278611-A (GB)
Title: Improvements in or relating to electrically operable igniters
IPC: F42C19/12
Filed: 1969-07-24
Abstract: 1278611 Electric igniters DYNAMIT NOBEL AG 24 July 1969 [25 July 1968] 37348/69 Heading F3A An igniter comprises an electrically conducting casing 7, a polepiece 6, an incandescent bridge 2 for igniting a charge 14, and an insulating member 1 supporting the bridge with one end of the bridge in contact with a shoulder formed in the casing or constituted by a conducting sleeve 12, the other end of the bridge contacting or being integral with a conductor 4 in electrical contact with the polepiece. The conductor 4 is widened out at 5 and the bridge is formed with an annular portion 3. The bridge is a wire or foil deposited on the insulating member 1 by chemical and/or electro-deposition processes and is in the form of a straight or zig-zag arm composed of copper, silver, gold, nickel, chrome-nickel or constantan. The member 1 is made of laminated cellulose paper, cotton fabric, glass fibre fabric or synthetic fibre fabric impregnated with a phenol, epoxide, or polyester resin.
Patent GB-1236582-A (GB)
Title: Viscous torsional vibration damper
Inventor: MOORHOUSE GEOFFREY
IPC: F16F15/173
Filed: 1967-08-15
Abstract: 1,236,582. Torsional vibration dampers. HOLSET ENG. CO. Ltd. 12 July, 1968 [15 Aug., 1967], No. 37356/67. Heading F2S. In a torsional vibration damper of the kind in which an inertia weight 14 rotates freely in an annular chamber containing viscous fluid, the chamber is composed of an integral casing member 10 with a single removable cover 16 sealed to the casing at 20 and 22. In a known damper of this form (Fig. 1, not shown), the seals are so located that the effective area of the cover (i.e. the area bounded by the seals) exceeds the area of the opposite chamber wall 30. The object of the invention is to make these areas equal, thereby eliminating unbalanced axial forces on the housing when the cover and the opposite wall are subjected to pressure in use of the damper. Figs. 2 and 3 show two ways of achieving this.
Patent GB-814909-A (GB)
Title: Improvements in or relating to printing machines employing electrical facsimile reproduction
Inventor: GRUVER JOHN H
IPC: H04N1/00
Filed: 1956-12-07
Abstract: 814,909. Copying-telegraphy. ADDRESSOGRAPH-MULTIGRAPH CORPORATION Dec. 7, 1956, No. 37460/56. Class 40 (3). In an electrical facsimile printing machine arranged to reproduce data borne by individual subject-matter members, such as business cards, in predetermined areas thereof, and including a scanning position to and through which the members are passed in flat-abutting or overlapping relation, together with scanning means at the scanning position to translate the card data into signals transmitted to a printing position to effect reproduction, means is operable in each cycle of the machine during passage of matter-bearing members through the scanning position to render the transmitting means ineffective for a predetermined time interval during which the leading edge of each respective card passes through the scanning position. The scanning and printing arrangement is similar to that described in Specifications 767,284 and 808,008, in which cards C are fed from a stack past a scanning arrangement comprising a drum 25 with two groups of four 90-degree helical slots 35, 36 arranged to scan, for example, lines A1, C3 of a card C, whilst the lines B2, D4 of the next or subsequent card are being simultaneously scanned. The printing arrangement comprises four discs 62 each carrying four 90- . degree helical ridges 61 engaged by the printing anvils 65 of four printing units 60 arranged in two pairs at diametrically opposite positions of the discs. The arrangement for suppressing the outputs of the four photo-cells associated with the four simultaneously operative slots 35, 36 of the drum comprises four similar switches SW with switch arms 90 carrying rollers 91 operated by cams 115-1 ... and effective in the closed position shown, effected by the lobed portion L, to short-circuit the resistor 122 to allow the output of a scanning photo-cell, such as 59, to pass via capacitor 123 to the associated printing unit. In the open position of the switch SW, the resistor 122 reduces to a very small value the signal corresponding to black which may be derived from a card C. Each of the cams 115- 1 ... 115-4 for operating the switches SW is formed by two relatively and independently adjustable cam discs mounted on a shaft 100 secured to a gear 105 driven by a gear 106 from a gear of the driving arrangement which feeds the cards C past the scanning position, and the cam discs are adjusted so that the dwell portion D of the double-disc cam, such as 115-1, Fig. 7, is effective to suppress signals from the associated photo-cell for predetermined portions of the cards C which occur before and after the junctions J and which may include perforated portions 70 which also could give rise to darkened areas on the reproduced strips.
Patent GB-1080974-A (GB)
Title: Improvements in hot inc coating rolls for use in a hot inc galvanizing process
IPC: C22C38/46
Filed: 1965-09-02
Abstract: At least the surface layer of a coating roll in a hot-dip galvanizing plant is made of a low alloy tool steel consisting of:- .C.0.2-2% .Cr.2-30% .Mo.0.5-10% .V.0-5% .W.0-20% .Other elements.0-20% .Fe.(at least 50%) the balance
Patent GB-1199757-A (GB)
Title: Adjustable Speed Pumping System
IPC: G05D9/12
Filed: 1967-08-15
Abstract: 1,199,757. Automatic control. BUCYRUSERIE CO. Aug.15, 1967 [Aug.31, 1966], No.37554/67. Heading G3R. Changes in fluid level are automatically corrected by a pump driven by an A. C. motor a stator winding of which is adjusted in position, to vary motor speed, by a servomotor controlled by a pressureoperated potentiometer responsive to the fluid level. As described, variation of the depth of fluid in a well (not shown) receiving fluid is detected by variation of air pressure in a conduit supplied from a pressure source and having an outlet below the level of fluid in the well. This pressure is applied to operate a potentiometer V 1 , Fig. 2, the output of which controls, through a servo-amplifier 50, a reversible servomotor 34, and gearing 32, 28, the angular position of one stator winding 30 of an A. C. wound rotor induction motor 20 driving a centrifugal pump (not shown) removing fluid from the well. The angular position of stator winding 30 is so adjusted relative to the other stator winding 31 that the speed of motor 20, and hence the pump, is altered to oppose the variation of depth of fluid in the well. A potentiometer 46, adjusted by servomotor 34, applies follow-up signals to the input of servo-amplifier 50.
Patent GB-917899-A (GB)
Title: "s" cam brake with segmented cam follower
IPC: F16D65/22
Filed: 1960-11-01
Abstract: 917,899. Shoe brakes. BENDIX CORPORATION. Nov. 1, 1960 [Nov. 19, 1959], No. 37564/60. Class 103 (1). An expanding shoe brake incorporates pivoted cam followers 42, 44 to reduce friction between an S-shaped cam 40 and pivoted shoes 10, 12. Each follower has a surface 46 in rolling engagement with the cam 40 which is of a greater radius than the bearing surface 54 of a pin 60 against which the cam follower bears and which transmits force from the cam 40 to the brake shoe 10. When the cam has been turned a given amount, abutments 64 on the followers 42, 44 abut projections on the brake shoes so that further rotation of the cam causes sliding of the cam on the followers to increase further the braking effect. In Fig. 6 (not shown), the cam followers have integrally formed pins, and springs to bias the followers to a brake release position.
Patent GB-1159827-A (GB)
Title: Machine Tool.
IPC: B23B47/22
Filed: 1966-08-23
Abstract: 1,159,827. Machine tool details. HEALD MACHINE CO. 23 Aug., 1966 [7 Sept., 1965], No. 37738/66. Headings B3B and B3C. A boring machine comprises a base 11, a work support 17, and a boring bar 16 driven by a motor 14, and carried by a slide 13, which can be moved at a fast approach and retraction speed and at a slower feed rate, by an hydraulic piston 23. The latter is controlled by a directionregulation valve 32, an adjustable pressureregulating valve 61, and an adjustable flowregulating valve 33.
Patent GB-831844-A (GB)
Title: Process for the production of alkali metal salts of homocysteine and homocysteine thiolactone acid addition salts
Filed: 1957-12-04
Abstract: In a process for the preparation of alkali metal salts of homocysteine and acid addition salts of the thiolactone thereof, methionine is demethylated with an alkali metal in the presence of liquid ammonia, the metal salt so formed being treated with an acid to give an acid addition salt of the thiolactone.
Patent GB-1394990-A (GB)
Title: Copolymers and compositions containing copolymers
IPC: A61K9/70
Filed: 1971-08-12
Abstract: 1394990 Carrier for agricultural chemicals HYDROPHILICS INTERNATIONAL INC 1 Aug 1972 [12 Aug 1971] 37936/71 Heading ASE [Also in Division C3] Herbicides, pesticides etc are applied in a controlled manner by use as a carrier of a polymer derived from a monomer mixture comprising 20-60 parts by volume of acrylic or methacrylic acid, 20-70 parts of a lower alkyl acrylate or methacrylate and 5-20 parts of a plasticising monomer, at least part of the acid groups of the polymer being neutralised. Exemplified polymers are derived from acrylic acid, methyl methacrylate and 2-ethylhexyl acrylate. They are preferably neutralised with zinc or copper (particularly with the ammonia complexes of these metals) or other multivalent cations, but NaOH or ammonia may also be used. The polymers are generally used in the form of an aqueous solution or dispersion also containing the active chemical; exemplified chemicals are 4-thiazolyl benzionidazole, manganese ethylene bis dithiocarbonamide, methyl- 1-(butylcarbamoyl)-2-benzimidazole carbamate, 2, 6-dichlorothiobenzamide, gibberellic acid, methyl parathion, methomyl, maneb, atrazine, and fluometuron.
Patent GB-1313648-A (GB)
Title: Pipe coupling
IPC: F16L19/075
Filed: 1971-08-12
Abstract: 1313648 Pipe couplings DRESSER INDUSTRIES Inc 12 Aug 1971 [19 Aug 1970] 38005/71 Heading F2G A coupling between pipes 11, 12, Fig. 1, comprises at each end of a sleeve 10 grooves 18, 19 to receive resilient seals 20, 21 wedged into place by tightening nuts 23, 24 so as to compress the gaskets, causing them to expand radially inwards and grip the pipes, the axial lengths of the grooves 18, 19 being greater than that of the seals 20, 21 so that when the coupling is subsequently exposed to high temperature there is space into which the seals can expand. The interengaging faces 28, 29, Fig. 1 (left-hand side) of the seals 20, 21 and grooves 18, 19 are chamfered to facilitate their insertion to the coupling position, Fig. 1 (right-hand side). A split lock ring 35, Fig. 4, having radial slots 46 extending outwards from its inner edge 48, which is knife-sharp, and a wavy cross-section, Fig. 7, is located between at least one of the nuts, e.g. 24, and its seal, e.g. 21. On tightening the nut 24, the lock ring 35 is flattened and its linear knife edge 48 bites into the pipe 12. In a modification, Fig. 3 (not shown), a split lock ring 35 is located between both nuts 23, 24 and their seals 21, 22.
Patent GB-875860-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F27D99/00
Filed: 1957-12-06
Abstract: 875,860. Clasp fastenings; spiked plates. F.T. PRODUCTS Ltd. Nov. 26, 1958 [Dec. 6, 1957], No. 38035/57. Classes 44 and 89(2). A fastener comprises a single strip of spring material bent to approximately U-shape about tines transverse to its length so as to have two limbs 26, 32 which are formed by a web 29, one of the limbs being formed at its free end with a pointed head and barbed head 33. In the embodiment shown in Fig. 5 the head has two barbs 34 which are bent downwardly so that they lie at approximately 90 degrees to each other. Adjacent the web 29, the limb 32 has a pair of wings 30, 31 which are curved to part cylindrical shape. The limb 26 is provided on each side with a pair of upstanding flanges 27, 28. The fastener is used for securing a flexible sealing strip, as shown in Fig. 8 in the form of a tube 23, adjacent a shoulder or groove in a metal panel 21; the panel is formed with an elongated slot and the fastener is positioned in the slot with the web 29 adjacent one end and the flanges 27, 28 adjacent the other end, the web acting as a rear abutment and the flanges as a front abutment with the sides of the flanges aligning the fastener in the slot. The limb 26 then engages the under surface of the panel and the tube is engaged with the fastener by forcing it against the head so that the head pierces the tube, the wings then engaging the outside surface of the tube. In a modification the flanges are formed between the head and the wings instead of on the tongue. In another modification the flanges are omitted and instead a lug is bent and sheared out of the limb 32 between the wings. In another modification Fig. 11 the wings and flanges are omitted and a rearwardly pointed arm 43 is bent out of the limb 26 and web; this arm constitutes the rear abutment and the web constitutes the front abutment. In a further modification the front abutment is formed by bending the head-carrying limb and in a yet further modification both the head-carrying limb and the other limb are bent to form the front abutment. The head can be provided with two pairs of barbs if desired.
Patent GB-849808-A (GB)
Title: Improvements in or relating to apparatus for marshalling a group of articles in spaced rows
IPC: B65G57/26
Filed: 1956-09-06
Abstract: 849,808. Weighing apparatus. EASTWOODS Ltd., and PAISLEY, J. Dec. 6, 1957 [Sept. 6, 1956], No. 38072/57. Addition to 849,805. Class 143 [Also in Groups XVII and XXX] The speed of an endless conveyer 12 of a stacking apparatus (see Group XVII) is controlled by movement of a further conveyer 33 receiving articles from it, the conveyer 33 being pivoted at 34 and its other end spring loaded at 35 so that movement of the latter end under weight of the articles controls the speed of the motor 32 driving the conveyer 12. Specification 849,806 also is referred to.