baber/WOPTO huggingface dataset:
Patent GB-1464459-A (GB)
Title: Generator system
IPC: B60L50/12
Filed: 1974-10-08
Abstract: 1464459 Automatic control of generators HITACHI Ltd 8 Oct 1974 [8 Oct 1973]  43597/74 Heading G3N The speed of an internal combustion engine driving a generator is measured and used to form a command signal which controls the generator excitation current, thus permitting smooth operation under conditions of varying load or changes in demand. As shown in Fig. 5, motors 5 of an electric locomotive are powered by a generator 2 driven by an engine 1. An auxiliary generator 4, also driven by the engine 1, produces an A.C. output of constant voltage and frequency proportional to speed. The output signal passes through a command circuit 100, including a frequency-to-voltage converter 101 and a function generator 102, to a control circuit 8 which provides firing control signals to a thyristor exciter circuit 3 which is supplied from the auxiliary generator 4 and controls the current in the field winding 20 of the main generator 2. Converter 101 includes a saturable reactor, and generator 102 is a simple Zener diode circuit, Fig. 7 (not shown). In modifications, the control circuit 8 may receive its speed-dependent input from a separate D.C. or pulse tachogenerator, Fig 8 (not shown), or from an auxiliary generator producing a voltage proportional to speed, Fig. 10 (not shown). A separate rotary exciter may also be used, Figs. 9, 11 (not shown).
Patent GB-1005662-A (GB)
Title: Improvements in change-speed gear for coupled power driven vehicles
IPC: B60K17/10
Filed: 1960-12-19
Abstract: 1,005,662. Change-speed control. H. G. PRYOR. Dec. 1, 1961 [Dec. 19, 1960], No. 43648/60. Headings F2D and F2L. [Also in Division B7] A change-speed control for coupled tractors 1, 2 in which ratio shift on both tractors is controlled by a driver on one tractor, comprises gear shift levers 3, 26 the former acting directly on the gear 4 of tractor 1 whilst the latter is mechanically connected to liquid pressure actuators 21, 33, 34 which supply pressure liquid to servos 10, 13, 14 acting on a shift member 9 of the gear 8 on tractor 2. The shift member 9 passes through a slot 15a in a bar 15 pivoted at 16 and is moved to the extreme ends of the slot by the servo 10 which acts on the member 9 through a rod 11 against a return spring 12. When the shift member 9 is at either end of the slot, the bar 15 is moved transversely by the servo 13 or 14 to engage the selected ratio. Clutch pedals 37, 38 are connected for conjoint operation by a liquidpressure actuator 39, line 39a and servo 40. Conjoint operation of auxiliary gears is effected by a lever 43 which acts directly on the auxiliary gear of tractor 1 and acts through actuators 52, 53, fluid lines 49a, 51a and servos 54, 55 on the shift member 58 of the auxiliary gear of tractor 2. Specifications 837,795 and 921,112 are referred to.
Patent GB-869330-A (GB)
Title: Fixture for manufacture of tube-and-lamella radiators
IPC: B21D53/08
Filed: 1959-12-23
Abstract: 869,330. Making radiators. SEPARATOR A.B. Dec. 23, 1959 [March 2, 1959], No. 43675/59. Class 83 (2). A fixture for the assembly of radiator tubes through apertures in the plates or lamellµ, comprises a series of spaced guide plates for receiving the lamellµ therebetween and having at one end one or more recesses for receiving a tube or tubes and supporting means for the lamellµ adjacent the recesses. Lamellµ 12 with holes 13 to receive tubes 19 are assembled between guide plates 9 kept apart by upper and lower spacers 10, 11. The plates and the spacers have dovetail slots which engage over dovetail projections 20, 21 on upper and lower blocks 2, 3, the whole being bolted between side plates 4 and 5. At the rear are three recesses 14, 16 arranged so that tubes 17-19 therein are opposite aligned apertures in the lamellµ and may be pushed through. The lamellµ may have stiffening corrugations 28 and in order to facilitate heat transfer and subsequent soldering the holes 13 are punched so as to leave projections 29, 31, 32, Fig. 10, which contact the sides of the tubes. The guide plates have corresponding corrugations 34 and bent-out portions 35 to give additional support to the lamellae in the vicinity of the holes.
Patent GB-1138268-A (GB)
Title: Methods and apparatus for separating stacked containers
Inventor: EDWARDS BRYANT
IPC: B65G59/10
Filed: 1967-09-26
Abstract: 1,138,268. Forming containers. ILLINOIS TOOL WORKS Inc. 26 Sept., 1967 [27 Sept., 1966], No. 43691/67. Heading B6J. [Also in Division B8] Containers 10 having rims 12 are fed to the heated rim-curling elements 26 by elements 40, the flanges 48 and 50 of which bend back the rims 12 as they feed the containers downwards into the threads of the elements 26. Elements 40 are secured to the tops of the heated elements 26.
Patent GB-991688-A (GB)
Title: Improvements relating to vacuum lifting devices
IPC: B66C1/02
Filed: 1963-11-05
Abstract: 991,688. Suction lifting devices. VACUUM CONCRETE CORPORATION OF AMERICA. Nov. 5, 1963 [Feb. 7, 1963], No. 43711/63. Heading B8H. A suction lifting device 10, Fig. 3, has two resilient gaskets 14, 16 mounted on a plate 12 and interconnected by tubes 34 the aggregate cross sectional area of which is less than that of a port 20 through which the device is exhausted. When the gasket 14 contacts the load the vacuum is applied thereby exhausting an inner chamber 18 and compressing the gasket to give a good seal. This movement ensures that the gasket 16 contacts the load so that an outer chamber 30 may be exhausted through the tubes 34. The ratio of the area of the port 20 to that of the aggregate of the tubes 34 may be between 1.1 and 96.0 and is preferably between 25 and 50, 36 being satisfactory. Similarly the ratio of the areas of chambers 30 and 18 is between 2.5 and 16.0, preferably 5.
Patent GB-1401478-A (GB)
Title: Covered suture
IPC: A61L17/00
Filed: 1972-09-21
Abstract: 1401478 Yarns ETHICON Inc 21 Sept 1972 [22 Sept 1971] 43762/72 Heading DIW A sterile suture is constructed with an internal multifibre core yarn which is covered by a helical winding of an external multifibre cover yarn, the adjacent edges of the cover yarn being secured to each other and to the core yarn by means of a binder composition. The core yarn and the cover yarn are preferably of the same composition and may be nylon, polyester, homopolymers of L-lactide or glycolide, copolymers of L-lactide and glycolide, polypropylene, or silk or cotton. Several specific examples are given of suitable core yarns, cover yarns and binder compositions. The coating with the binder composition may be carried out before or after the application of the helical winding. In a preferred embodiment the helical winding is applied by means of a rotating spool mounted on a hollow spindle through which the core yarn passes. In the case of coating with a binder prior to helical winding, the covered core yarn is hot stretched to activate the binder.
Patent GB-437819-A (GB)
IPC: C06F1/26
Abstract: 437,819. Making match-books. FELLHEIMER, J., 38, Esslingerstrasse, Stuttgart, Germany. May 10, 1934, No. 14131. [Class 94 (i)] Match-books of the type comprising a corrugated sheet and an overlying cover sheet enclosing a match in each channel are made by leading the various sheets or strips over separate guide rollers to a common corrugated roller. Thus as shown in the Figure the match strip is led from the drying box a along a guide n to a toothed roller b where it is cut into lengths by a cutter c and which deposits the matches in the corrugations formed in a strip o passing between the corrugating rollers d, e. The roller d meshes with roller b and carries the matches in their channels under a roller i to which is fed the covering strip. The corrugated sheet having been gummed along its ridges by a roll f, the covering strip adheres to it and is pressed down by rollers l, l<1>. The individual matches may be given a transverse bend by the teeth of roller b to prevent contact of their edges with the adhesive. Specification 384,622 is referred to.
Patent GB-1408929-A (GB)
Title: Device for the planting of potatoes
IPC: A01C9/06
Filed: 1972-09-21
Abstract: 1408929 Potato planters AGROSTROJ PROSTEJOV NARODNI PODNIK 21 Sept 1972 [14 Oct 1971] 43849/72 Heading AID A device for planting potatoes or like tuber plants comprises a hopper having a pair of side walls and a bottom wall 3 which is spaced from at least one of the side walls to provide at least one longitudinally extending potato outlet. The bottom is inclined downwardly to the or each outlet to guide the potatoes into a potato receiving trough 4 arranged beneath the or each outlet. One or both walls of each trough has a guide 5 for the pin 6 of an eccentric drive whereby the troughs are reciprocated to or from a potato pick-up and planting wheel 2, or a conveyor belt. The troughs 4 may each be formed from spaced, inclined walls which leave a central dirt discharge slot. Alternatively they may be unitary and perforated. The troughs may feed to one or two wheels 2 via guide chute(s) 8. A flexible wall 12 aids the potato alignment within each trough and short projections 7 within the hopper reduce the weight over the troughs.
Patent GB-1448608-A (GB)
Title: Washing machine control
IPC: D06F34/08
Filed: 1974-10-10
Abstract: 1448608 Laundering SOC ANON INDUSTRIELLE IZOLA 10 Oct 1974 43866/74 Heading D1A At the end of a washing cycle only part of the used liquid is pumped out and fresh liquid is fed in. To effect this cycle of operation a pressure switch 1 controls the water-inlet valve solenoid 3 via one contact I and a time control motor 11, a washing motor 12 and a pump motor 15 via a second contact k. The cycle starts with toggle 2 in the dotted position and the motors 11, 12 are energized. When switch 16 (a programme switch) is actuated the pump empties the drum until the toggle 2 moves to contact 11, when the solenoid valve operates and the drum fills. The switch I again senses the fill condition and the toggle 1 returns to position k. The pumping and cycling is selected so that the temperature is maintained within predetermined limits from phase to phase. Since the fresh water is cold and the pumped water warm, the temperature of the wash is progressively lowered.
Patent GB-1312999-A (GB)
Title: Method of manufacturing a magnetic body having anisotropic permanent magnetic properties
IPC: C22C38/10
Filed: 1970-09-15
Abstract: 1312999 Magnet alloys PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Sept 1970 [18 September 1969] 44019/70 Heading C7A A magnet alloy containing in percentage by weight CO 28-42 Ni 10-20 Al 6-10 Cu 2-8 Ti 4-10 Fe balance and having a segregation temperature at least 25C higher than the Curie temperature of the α' phase, is homogenised and is then subjected  to elastic deformation while being heat-treated to decompose the homogeneous phase into a Fe-Co rich phase (α') and a Ni-Al rich phase (α). The deformation may be effected between the segregation temperature and the Curie temperature of the (α') phase, and may be accompanied or followed by application of a magnetic field. Preferably the applied stresses are such that a tensile force is developed in the body in the easy axis of magnetization.
Patent GB-1494833-A (GB)
Title: Content addressable memories
IPC: G11C16/04
Filed: 1974-10-11
Abstract: 1494833 Transistor memory circuits PLESSEY CO Ltd 3 Oct 1975 [11 Oct 1974] 44061/74 Heading H3T In a content addressable memory, each storage element comprises two non-volatile storage devices, e.g. variable threshold FET's T1, T2, which can be non-destructively read and which respectively store true and inverse data, the two devices being connected such that data stored by each device can be simultaneously compared with information data applied to the memory, the input of each device be connected to a separate terminal G1, G2. When writing into an element, it is first cleared by biasing the gates of both devices positive with respect to the substrate, to set them to their low threshold state. The word lines SL1, DL1 of any unselected elements in the memory are then biased negatively, and those of an element into which data is to be written are earthed. True and inverse data signals are then applied to lines G1, G2, a "1" being a large negative signal which shifts the threshold to the high state, and a "0" being zero potent which leaves the threshold in its low state. For read operation, a "1" signal is a level which is between two threshold levels and a "0" is again zero level. Thus if there is a match between the stored data and the applied read data neither transistor is rendered conductive and no current will flow between source and drain electrodes. Instead of the parallel arrangement of the source-drain paths shown, they may be connected in series Fig. 3 (not shown).
Patent GB-1478799-A (GB)
Title: Electrolytic process for the production of peroxide
IPC: C25B1/28
Filed: 1975-10-27
Abstract: 1478799 Hydrogen peroxide; alkaline earth peroxides KERNFORSCHUNGSANLAGE JULICH GmbH 27 Oct 1975 [13 Nov 1974] 44206/75 Heading ClA [Also in Division C7] A solution of H 2 O 2  or a salt thereof produced by electrolysis (see Division C7) is reacted with an alkaline earth metal oxide, hydroxide or salt (e.g. Ca(OH) 2  or CaCl 2 ) to precipitate the peroxide (e.g. CaO 2 ), and the latter is emulsified in water and acidified, e.g. with CO 2 , to form H 2 O 2  in solution.
Patent GB-975645-A (GB)
Title: Handpiece body for a sheep or similar shearing machine
Inventor: BOWEN GODFREY
IPC: B26B19/24
Filed: 1963-11-09
Abstract: 975,645. Horse &c. clippers. R. A. LISTER & CO. Ltd. Nov. 9, 1963, No. 44320/63. Heading B4B. In a handpiece body for a sheep &c. shearing machine comprising a cutter 5 oscillatable relative to a fixed comb 3 by means of mechanism driven through an elbow joint 6 by a rotatable driving shaft 7, the clearance between the adjacent faces of the cutter and comb being adjustable by a rotatable adjusting cap 8, a finger guard 11 has an integral plate 12 secured to the handpiece body by means of a screw 15 engaging a screw-threaded hole in the handpiece body, the screw passing through a slot 14 in the plate 12. When the screw is slackened, the finger guard can be swung about the axis of the screw.
Patent GB-1287412-A (GB)
Title: Improvements in and relating to railway vehicle bogies
Inventor: HIRST ARCHIE JOHN
IPC: B60G11/24
Filed: 1968-09-19
Abstract: 1287412 Vehicle suspension DUNLOP HOLDINGS Ltd 19 Sept 1969 [19 Sept 1968] 44465/68 Heading B7L [Also in Division F2] A railway bogie suspension spring 3 comprises at least one block of resilient material e.g. rubber arranged between metal end plates, the spring 13 being V-shaped in plan, one end plate engaging a V-shaped abutment 4 on an axle box 2, and the other end plate 5 having a pair of open sockets 7, 8 for engagement with pins 9, 10 which are attached to a side member 1 of the vehicle bogie. The suspension system of Fig. 1 comprises two springs 3 arranged on each side of the axle box 2, and the semi-circular recesses 7, 8 are formed in a pair of vertically extending abutments 6 formed integrally on each end plate 5. The pins 9, 10 pass through holes in the side member 1. Tags 11 are fitted to the end plates 5 to prevent disengagement of the pins 9, 10 from the recesses 7, 8. In another arrangement, Fig. 3 the pins 12, 13 are kept in engagement with the recesses 14, 15 by means of a bolt engaging a bore 18 and the side member 1. Axial movement of the pins may be prevented by tack welding them to the side member 1.
Patent GB-890258-A (GB)
Title: Non-toxic castor cake and method of producing the same
IPC: A23L11/30
Filed: 1959-12-31
Abstract: In producing a non-toxic, ricin-free, castor cake, for animal food, which is rich in proteins and amino-acids, whole or de-skinned castor beans are comminuted, the resultant flour is dried, then pressed or solvent-extracted to remove oil, and the residue dried and extracted by agitation with water to remove soluble carotenoid pigments, the water being drained off after standing for one hour.  If necessary, the water content of the mass is then adjusted so that its volume is less than or equal to the castor cake solids, and a strong culture of a proteolytic bacteria, e.g. pseudomonas, such as clostridium isolated from sewage sludge, added, e.g. in amount of 20 millilitres of culture per 4 to 5 kg. of castor cake in the wet mix, and the whole is allowed to ferment and auto-digest for at least 10 hrs, preferably for 50 to 72 hours, at 20 to 45 DEG C., preferably 25 to 35 DEG C., the pH being maintained at between 7,5 to 9, e.g. by adding 1/2 to 1% of an alkali metal or alkaline earth metal hydroxide; 1/2 to 1% of sodium chloride may also be added to solubilize toxic protein and assist in its auto-digestion.  The digested mass is then heated at 100 to 120 DEG C., e.g. for 1 hour in an autoclave at atmospheric pressure, and the dried product can then be granulated, pulverized or prepared in cake form.
Patent GB-1413765-A (GB)
Title: Anti-blister cage mat for raising broilers
IPC: A01K31/00
Filed: 1973-09-24
Abstract: 1413765 Cage mat DIAMOND INTERNATIONAL CORP 24 Sept 1973 [2 May 1973] 44583/73 Heading AIM A flexible, moulded plastics anti-blister cage mat 15 for broilers comprises a uniform pattern of rounded openings 16 bordered on at least two sides by raised tubular or hollow ribs 18, 20 to afford a nesting surface the height of which may vary with the size of the openings 16. The ribs 18, 20 extend longitudinally and transversely, the terminal ends being squared off, with the overall dimensions of the mat substantially conforming to the outline of the wire cage bottom 10. The ribs define, at the-upper edge of the openings 16, radial upper peripheral margins which direct waste to the screen below. Integral spacer members are provided e.g. at 25.
Patent GB-1327700-A (GB)
Title: Fluid driven power tool including an automatic shut-off valve
IPC: B25B23/145
Filed: 1971-09-24
Abstract: 1327700 Power tools INGERSOLL-RAND CO 24 Sept 1971 [29 Sept 19701 44707/71 Heading B3N A fluid driven power tool includes a casing 1, a motor 11, an inlet passage 4, an exhaust passage 16 and a fluid-actuated valve 21 located in the inlet passage and movable between an open and a closed position, a spring 32 biases the valve to an open position and the left hand end (as illustrated) and the right hand end are subject to fluid pressure from the inlet and exhaust passages respectively so that in response to drop in fluid pressure in the exhaust passage when said motor slows down, the valve moves to a closed position. Flow of fluid to chamber 26 at the left hand end of valve 21 is via passage 27 and between the valve and the bore 20 in sleeve 18. The flow to chamber 31 is via passage 33. When the valve is opened passage 38 is connected to inlet passage 4 which causes a signal to be produced. When the valve is closed passage 38 is vented along passage 37. The tension on the spring is adjustable by plug 30.
Patent GB-1105698-A (GB)
Title: Improvements in or relating to sewing needles
IPC: D05B85/00
Filed: 1966-10-07
Abstract: 1,105,698. Sewing machine needles. IGLA NARODNI PODNIK. 7 Oct., 1966 [13 Dec., 1965], No. 44930/66. Heading D1G. In a sewing machine FIG. 1 needle, the thickness in the vicinity of the eye, over the entire cross section, exceeds the diameter of the shank by at least 0.08 mm., while the part above the eye is thinner than said diameter. As shown, the part 2 above the eye is thin- . ner than the shank 1, . and the part 3 in the vicinity of the eye, which is thicker than the shank 1, is formed with lateral recesses 4. An aperture 6 is provided between the eye and point. A conical portion 5 above the shank 1 has an angle of inclination less than 10 degrees. The construction is intended to to p r e v e nt overheating when sewing synthetic material.
Patent GB-932613-A (GB)
Title: Switching systems between multiplex communication channels
IPC: H04Q11/06
Filed: 1959-10-16
Abstract: 932,613. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 16, 1959 [Oct. 21, 1958], No. 45005/62. Divided out of 932,612. Drawings to Specification. Class 40 (4). In a system having incoming and outgoing time division multiplex highways, and in which communication signals are transferred from one to the other by delay means; and in which internal blocking can occur whereby a pulse position is free on an outgoing highway, but cannot be used for a call on an incoming highway without interfering with an existing call; then the channel allocations for existing calls are altered until no such blocking exists. If incoming highways designated E 1 , E 2  ... each have pulse positions thereon, e 1 , e 2  ... and outgoing highways S 1 , S 2  ... each have pulse positions S 1 , S 2  ... suppose an incoming call on E 1 e 4  requires connection to a line reached over S 2 . Let Sa be a pulse position free in S 2  and let sb be an outgoing pulse position not connected to a channel in E 1 . Then the connection E 1 e 4  to S 2 sb is established. However, S 2 sb may already be connected to E 8 e 5  (say). E 8 e 5  is thereupon transferred to S 2 sa. However, sa may already be used for another Eg connection, say E 8 e 11 , which may be connected for example to S 1 sa. This connection is then transferred to S 1 sb and this process is repeated until the blocking is removed, by there being no existing connection which may be interfered with. The detailed description is identical with that of Specification 932,612, which claims other features.