baber/WOPTO huggingface dataset:
Patent GB-739743-A (GB)
Title: An engine-braking arrangement for two-stroke internal combustion engines
IPC: F02D9/06
Filed: 1953-10-29
Abstract: 739,743. Regulating; charging pumps. SOC. ANON. A. SAURER. Oct. 29, 1953 [Dec. 18, 1952], No. 29964/53. Classes 7(2) and 7(6). [Also in Group XXIV] For engine-braking in a two-stroke engine, the exhaust pipe 20 is closed by a throttle valve 22 and simultaneously the actuating means of the exhaust valve 15 is adjusted to open the valve 15 during a substantial part of the compression stroke. The exhaust throttle valve actuating means 25 is connected by a resilient link 37 to a valve 32 which, when the valve 22 is closed, is actuated to supply lubricating oil under pressure through a pipe 33 to cause axial movement of a sleeve piston 35 engaging helical teeth 42, 41, on the exhaust cam shaft 11 and its drive shaft 40, whereby the shaft 11 is adjusted angularly relatively to the drive shaft 40 so that the exhaust valve 15 opens as soon as the admission ports 7 are closed on each compression stroke and the air in the cylinder 1 is forced out through the throttled exhaust pipe. During the subsequent outward piston stroke,the valve 15 is closed and a high suction is produced in the cylinder, increasing the braking effect. A valve 23 in a by-pass 24 from the delivery side of a scavenging blower 18 to the exhaust pipe 21 downstream of the valve 22 is opened by a link 26 when the valve 22 is closed. In a modification the sliding piston coupling 35 between the shafts 40, 11, is replaced by a coupling comprising a vane 52, Fig. 4, on the shaft 11 adjustable by pressurised oil relatively to a toothed driving wheel 50. Alternatively the shaft 11 may be driven through an adjustable planet gear and the valve 23 may be replaced by a pressure-operated safety valve.
Patent GB-1114171-A (GB)
Title: Improvements in or relating to loose-leaf binders
Inventor: CAKEBREAD WILLIAM DUNCAN
IPC: B42F13/02
Filed: 1964-07-28
Abstract: 1,114,171. Loose leaf binders. C. CAKEBREAD GROUP Ltd. 23 July, 1965 [28 July, 1964], No. 29974/64. Heading B6E. Each of the two covers 1, 2 of a loose leaf binder is made of one piece of synthetic plastics material reinforced by channel-shaped depressions 7, 8 extending adjacent the periphery in spaced relation, and a central depressed area 9, which provide ribs 7a, 8a and a raised portion 9a on the outer surface of the cover. The material may be acrylonitrile butadiene styrene, polypropylene, polystyrene, or polyethylene. Reinforcing plates (14, 15, Fig. 1) are attached by rivets to the spine portions of the covers 1, 2, respectively, and flexible webs or thongs 3, 4 are secured to the plate (15), pass through apertures in the plate (14), and secured by rivets (20) to a bar (19). The bar (19) is slidable along a toothed rack (22) within the depressed area 9 in the cover 1, and is fitted with a ratchet (24). Loose leaves (27, Fig. 3, not shown), are removably mounted on the webs 3, 4 by means of apertures (38, 39) and are arranged between spines (28, 29) having similar apertures. The rack-and-ratchet mechanism (22, 24) may be replaced by a bar and cam means, or by a keywind thong-tightening means.
Patent GB-924953-A (GB)
Title: Improvements in or relating to devices for boring holes
IPC: E21B4/00
Filed: 1960-08-31
Abstract: 924,953. Boring earth; Jetting apparatus. G. W. LINFORD. Nov. 29, 1961 [Aug. 31, 1960], No. 30050/60. Classes 68 (1) and 85.' A boring device comprises a hollow shaft 28 adapted to deliver a jet of fluid to bore a hole, a rotary cutting head 10 rotatably mounted on the shaft, and a ratchet drive 18, 22 between the shaft and head permitting the head to be rotated by rotational to-and-fro movement of the shaft. The head comprises teeth 12, blades 13 and a threaded spindle 15 carrying the blades.
Patent GB-324332-A (GB)
Title: Improvements in flour and the like elevators
IPC: B65G45/18
Filed: 1928-10-18
Abstract: 324,332. Hilton, T., and Hilton, E. Oct. 18, 1928. Cleaning -apparatus fitted to conveyers.-In an endless belt bucket elevator for flour, &c. working in a casing, the inside of the casing is kept clean by bushes A, B detachably mounted on the belt. The brushes may be of bristle or a combination of bristle and pieces of woven cotton or woollen fabric.
Patent GB-285865-A (GB)
Title: Improvements in or relating to vulcanizing apparatus
IPC: B29D30/06
Filed: 1927-11-11
Abstract: 285,865. Akron Standard Mold Co., (Assignees of Fleiter, A. J., and Bostwick, H. C.). Feb. 24, 1927, [Convention date]. Mould-opening devices; moulding w h e e l tyres. - In vulcanizing- apparatus for tyres &c. including a stationary and a movable section, a locking-ring is provided on one section and is associated with mechanism adapted to separate the movable section sufficiently to permit of removal of the contents. As shown, a central stationary section, formed by castings 12 bolted together to provide a steam chamber 13 and supported by a standard 10, is furnished with lugs 20 to accommodate hinge pins 22 carrying outer sections 25 each furnished with cavities 15, 26 forming tube moulds. A two-partlocking-ring 40 rotatably mounted upon each section 12 is furnished with lugs 68, Fig. 4, having renewable wedge-shaped portions 70 adapted to engage lugs 65 on the sections 25 to lock the moulds in closed position; and is also provided with a tapered lug 75 adapted to engage one of the lugs 65 to cause forcible separation of the mould sections. The rings 40 are connected through lugs to pistons 45, Fig. 1, working in cylinders 46 to which pressure fluid is admitted through a pipe 101, member 100 and pipes 48, 52 through valves 53 controlled by a rod 61 and lever 60. A spiral gear element 80 on each lug is adapted to engage a gear segment 82 on the corresponding hinge pin 22 and effect complete opening of the mould sections. To prevent too rapid opening, the member 100 is fitted with a tapered valve rod 102 adapted to be depressed by a cam 106 on the ring 40 to throttle the fluid pressure supply. Lugs 110, Fig. 1, on the sections 25 engage cams 111 to register the mould sections. The Specification as open to inspection under Sect 91 (3) (a) describes also means for supporting a valve stem comprising a chamber 85. Fig. 10 (Cancelled), in the section 12 having an interchangeable plate 86 furnished with a semicircular recess 87 to receive the valve stem V which is clamped by a thumbscrew 88. The mould is cut away at 89 forming a V-shaped cavity which is closed by a corresponding block 90 on the section 25. The block 90 carries an interchangeable plate 91 having a passage 92 complementary to the recess 87 and a tongue 95 which enters the lower portion of the plate 86. This subjectmatter does not appear in the Specification as accepted.
Patent GB-861252-A (GB)
Title: Subsurface well bore packing device
Inventor: CONRAD MARTIN BARCLEY
IPC: E21B33/127
Filed: 1957-09-27
Abstract: 861,252. Well packers. BAKER OIL TOOLS Inc. Sept. 27, 1957, No. 30397/57. Class 85. A well packer has a resilient annular sealing member 18 which has passages 61 connecting internal cavities 60, 60a to the outside of the member. The passages are formed in an annular web 53 and are connected to the cavities by longitudinal grooves 62. The packer also includes a body 10 to which is fixed an abutment ring 24, a sleeve 17 slidably mounted on the body, and an abutment ring and slip expander 13, 19 fixed to the sleeve. The space between the well casing A and the body is sealed by holding the slips 15 against longitudinal movement within the casing, and by raising the body to deform the member into sealing contact with the casing and to cause the slips to grip the casing. When the member is in contact with the casing a peripheral groove 64 forms in the member. Any fluid under pressure in either of the spaces below or above the packer leaks through the groove 64 and passages to the cavities to increase the sealing effect.
Patent GB-1555045-A (GB)
Title: Voltage regulator for integrated circuit
IPC: G05F1/613
Filed: 1977-07-20
Abstract: A circuit arrangement for stabilising the feed voltage for the circuits on a chip is described which predominantly consists of components which are arranged on the chip and which can be produced in the same work cycles as the other components on the chip. This circuit arrangement contains a plurality of field-effect transistors (Q1 to Q11) connected in a cascade (12) and shunt regulator (Q12) which is connected to a cap (20) of the cascade and is also constructed as a field-effect transistor and which has the effect that the voltage across the cascade is stabilised to a predetermined value. In a preferred embodiment, an auxiliary-voltage source (114) is also provided which is driven via a gate (120) by means of a latching circuit (116) controlled by the cascade in order to charge up a capacitor (C1) so that the stabilised feed voltage for the electronic circuits on the chip is not interrupted even when the primary voltage source (112) fails. <IMAGE>
Patent GB-1268268-A (GB)
Title: Circuits using domain propagating devices
Inventor: BARBER MARK ROY
IPC: H03B9/12
Filed: 1969-06-17
Abstract: 1,268,268. Semi-conductor pulse circuits. WESTERN ELECTRIC CO. Inc. 17 June, 1969 [17 June, 1968], No. 30514/69. Heading H3T. [Also in Division G4] An electric circuit having a pair of semiconductor devices 10a, 10n each capable of forming and propagating a high electric field domain when in an excited state in response to a predetermined voltage level across the device being exceeded, the devices are connected in parallel with respect to application of a bias voltage 11 and are intercoupled so that the state of one device controls the present and/or next succeeding state of the other device and a voltage pulse applied to one of the devices is effective to cause that device to change between its unexcited and excited states. The circuit of Fig. 1 stores a pulse or pulse train from pulse source 18 which may be read out to load 19 by closing switch 15. The voltage source 11 biases Gunn effect diodes 10a-10n to below the threshold voltage for oscillation. A pulse from 18 is applied to the anode of the Gunn effect diode 10a so as to change it to its excited state to produce a voltage pulse at its cathode, the end of which pulse causes the next Gunn effect diode 10b to be excited. This is repeated for the succeeding diodes 10c-10n and as the last diode 10n is connected to the first diode 10a the pulse is repeatedly circulated along the array 10a- 10n. The stored pulse may be read out by closing switch 15. The rectifiers 17a-17n permit correct sequence of operation and resistors R1 and R2 enable the capacitors 16a-16n to discharge and their RC time constants should be less than the domain transit time. If the connection between diode 10n and the input of diode 10a is omitted then the circuit operates as a delay line. If only two diodes are interconnected (Fig. 3, not shown), the circuit operates as an astable multivibrator with the rectifiers 17 omitted. This circuit is started by a pulse via a capacitor to one of the diodes and the transit times of these diodes may be different. In a bi-stable circuit using two Gunn effect diodes 50a, 50b (Fig. 5) the bias source biases the diodes slightly above the threshold for oscillation. However due to inherent non- uniformities, such as noise, a domain will form in one of the diodes and the voltage across the other diode will be reduced to prevent formation of a domain. Inductors 52a, 52b filter or attenuate high frequency oscillations. If the diode 50b is oscillating a pulse from 53 will cause the voltage across the diode 50a to exceed its threshold value and cause it to change to its oscillating state which reduces the voltage across diode 50b and causes it to change to its unexcited state. A number of bi-stable circuits may be coupled to form a binary counter. To reset a particular one of the diodes in its excited state a reset pulse 55 may be applied via a transistor 56. The Gunn effect diodes may be replaced by acoustic wave propagating semi-conductors such as disclosed in Specification 1,218,451.
Patent GB-385701-A (GB)
Title: An overload release
IPC: F16D43/202
Filed: 1931-11-04
Abstract: 385,701. Overload-release clutches. FARO, R. H., Rydal Mount, Hayne Road, Beckenham, Kent, PEPLER, S. E., 22, Elderline Avenue, and HAY'S WHARF CARTAGE CO., Ltd., Tooley Street, both in London. Nov. 4, 1931, No. 30543. [Class 80 (ii).] An overload release device comprises a rectangular block C with rounded ends C<1> secured to the driven shaft A and two complementary blocks D slidably mounted under adjustable springs E in the flange F of a member G secured to a shaft B<1>. Pins H on the blocks D bear against bell-crank levers J, J<1> linked to the operating collar B of a clutch (not shown), for example, of the radial lever type, connecting the shaft B<1> to a source of power, so that, on overload, the collar B is moved against its spring, L to declutch the shaft B<1>.
Patent GB-267198-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/22
Filed: 1925-12-03
Abstract: 267,198. Midgley, A. H. Dec. 3, 1925. Vacuum tubes.-Two or more three-electrode thermionic valves having ordinary openwork grids g, g<1> are mounted in a single envelope and the plate a of one valve is connected directly to the grid g<1> of the succeeding valve. Specification 256,299 is referred to.
Patent GB-1437673-A (GB)
IPC: F01L31/14
Filed: 1974-07-11
Abstract: 1437673 Cam followers DAIMLER-BENZ AG 11 July 1974 [13 July 1973 21 Dec 1973] 30813/74 Heading F1K [Also in Division F1] An I.C. engine has adjustable wedge-shaped means 7 governed by the speed and load of the engine to adjust the lift of a valve 16. A member 7 engages via a roller 11 the valve shank 12. A crank-rod 4 articulated to a rotating crank-shaft 2 co-operates with member 7 and an abutment 6 to rock member 7 which causes reciprocation of valve 16. The adjusting member 7 is pivoted to a slidable element 9 which moves in response to variation in engine speed and load, this movement, owing to the wedge shape of member 7 causing the valve lift to vary. A roller 5 is pivoted to the free end of crank-rod 4 which engages the adjusting member and the abutment 6 which may be covered with wear resistant material 14. In another embodiment, Fig. 2 (not shown), the abutment may engage an arcuate surface on the crank-rod. The adjusting member is connected via a ball (30) to a socket in a slidable piston (31) the motion of which is governed by an eccentric bolt (33) supported by a journal (40). The adjusting member has a slot (34) to receive the valve shank. In a modification, the abutment may be adjustable to compensate for play or production tolerances.
Patent GB-308740-A (GB)
Abstract: 308,740. I. G. Farbenindustrie Akt.- Ges. March 27, 1928, [Convention date]. Isatins are prepared by treating, with an aluminium haloyenide as condensing agent, oxamic acid halides derived from primary aromatic amines, having the formula R.NH.CO. COX. in which R represents a substituted. benzene nucleus, including a benzene nucleus attached to a hydrogenated benzene nucleus, and X a halogen. In examples, the oxamic acid halides are prepared in situ from the hydrochloride or hydrobromide of the primary amine and oxalyl chloride or bromide, suspended or dissolved in nitrobenzene or chlorbenzene, and aluminium chloride is used as condensing agent. The following primary amines are thus transformed : sym- and asy-m tn-xyhdine, ;n-toluidine, p-xylidine and 1 - amino - 2 : 4 : 5 - trimethylbenzene. m-Chloraniline, p-aminoacetophenone, tetrahydro-a- and #-naphthylamine, o- and p-toluidine 4-chlor-3- amino-1-methylbenzene, 1 : 2 - dimethyl-4-aminobenzene, 6-chlor-2-amino-l-methylbenzene and 3- amino-4-methoxy-l-methylbenzene are also mentioned as starting compounds and the properties' of the corresponding isa.tins are described. Specification 286,358 is referred to.
Patent GB-872730-A (GB)
Title: Two-roller grinding mill
IPC: B02C4/02
Filed: 1957-10-03
Abstract: 872,730. Roller mills. KOPPERS G.m.b.H., H. Oct. 3, 1957 [Oct. 6, 1956], No. 31017/57. Class 59 A roller mill more particularly for grinding small coke and comprising hard steel, or hard steel-covered, grinding rollers, one of which is yieldably mounted, is characterized in that the end regions of the grinding rollers consist of a material of less hardness than that of the remainder of the surfaces of the grinding rollers. The reduced hardness at the roller ends can be produced during casting of the rollers or during the hardening process. Preferably, however; each roller is provided with a metal ring 11 of less hardness than that of the remainder of the roller.
Patent GB-409042-A (GB)
Title: Improvements in or relating to gas-heated furnaces
IPC: F27B17/00
Filed: 1932-11-03
Abstract: 409,042. Supplying gas and air to furnaces. WEBB, A. W. OGILVY-, 42, Denman Drive, Golders Green, London. Nov. 3, 1932, No. 31019. [Class 51 (i).] In a gas-heated furnace of the kind in which the gas is introduced so as to form a layer under the roof or over the walls and air is introduced into the layer of gas through a number of apertures, the gas is introduced from one or both ends into a number of channels of comparatively narrow width open or partly open towards the furnace and separated by thin walls extending inwardly into the furnace and the air is introduced into the channels through apertures directed towards the furnace chamber. In the constructions described the invention is shown as applied to a furnace roof, this being formed with air channels 4 fed from pipes 10 at each end and communicating through slots 14 with gas channels 5 fed from pipes 7 at each end. In one construction, Fig. 4, the channels are formed by vertical members 21, 2<2> suspended from girders 24 and having platforms 3 extending on each side. The spaces above the platforms constitute the air channels 4 and are covered by tiles 6 supported by shoulders 16 whilst the spaces below the platforms constitute the gas channels 5. Adjacent edges of the platforms are shaped to form the air slots 14. The lower ends 2<2> of the vertical members are of bulbous shape as at 26 to constrict the outlets of the gas channels. In a modification, the platforms are replaced by apertured tiles carried by additional shoulders. In another modification, Fig. 6, the air channels are formed by suspended pipe sections having at the bottom apertures 14 for the air and channels 32 and ribs 33 serving to support members 2<2> of substantially I-shape which extend into the furnace to form the gas channels. In the form shown in Fig. 7, apertured tiles 18 separating the air and gas channels are supported from suspended vertical members 2<1> and in turn support lower vertical members 2<2>. In a further modification, Fig. 8, each apertured tile 18 has an upper vertical member 2<1> extending from one end and a lower member 2<2> from the other end. The constructions described, excepting that of Fig. 1, may also be built up on an end or side wall of the furnace.
Patent GB-856494-A (GB)
Title: Coupled joint
IPC: F16L23/10
Filed: 1958-09-29
Abstract: 856,494. Pipe joints. AEROQUIP CORPORATION. Sept. 29, 1958 [Oct. 31, 1957], No. 31092/58. Class 99(1). [Also in Group XXV] A joint for interconnecting conduits 10, 11 comprises opposed, annular flanges 12, 13 mounted on the pipes and having parallel, opposed, frusto-conical faces 32, 34 spaced from each other, one of the flanges 13 having an annular projection 27 extending outwardly 8 from the inner circumference of its frustoconical face 24 to define a cylindrical shoulder 25 facing outwardly from the axis of the flanges, and the other flange 12 having an annular projection 35 extending outwardly from the outer circumference of its frustoconical face 32 to define a cylindrical shoulder 33 facing inwardly toward said axis, the flanges having annular rabbets 38, 41 formed therein for accommodating the projections. A gasket 46 in the space between the opposed faces has inner and outer frusto-conical side surfaces 47, 48 and annular end surfaces 50, 49 defining the outer and inner circumferences of the side surfaces, the latter being in contact with the respective frusto-conical faces of the flanges. There is clamping means for applying axial pressure to the flanges, and the dimensions of the flanges and the gasket are such that the gasket substantially fills the space between the opposed faces when the two flanges have been drawn together. As shown, the flanges 12, 13 have outer frusto-conical faces 20 and are clamped together by a radially contractible band 60, and, initially, the side surfaces of the gasket, which is of aluminium, copper or annealed stainless steel, have an angle of inclination greater than that of the frustoconical faces 24, 32 of the flanges.
Patent GB-520112-A (GB)
Title: Improvements in high-temperature radiating furnaces
IPC: F23M5/08
Filed: 1938-10-27
Abstract: 520,112. Liquid &c. fuel furnaces. GEORGE, H. Oct. 27, 1938, No. 31095. Convention date, Dec. 22, 1937. [Class 51 (i)] In a furnace particularly for steam boilers a heat radiating surface is provided by the paraboloidal face of a rotary wall or hearth 1 upon which the flames from a burner 8 impinge. The upper layers of the hearth are subjected to incipient melting and are maintained in equilibrium under the combined action of their weight and centrifugal force resulting from rotation. To compensate for erosion of the hearth granular refractory materials which may be fusible vitrifiable substances may be placed upon the hearth. The hearth is freed from slag by a temporary increase of the speed of rotation. An insulating layer 7 is arranged between the wall 1 and support 2 which is provided with tubes 6 traversed by cooling fluid.
Patent GB-727339-A (GB)
Title: Improvements in or relating to hydration resistant calcium oxide refractory materials
IPC: C04B35/03
Filed: 1952-12-08
Abstract: A fired refractory composition comprises in mol per cent calcia 50-98; titania 1-25; and zirconia 1-25.  A preferred range in weight per cent. is calcia 39-90; titania 3-24; and zirconia 7-37.  The compositions are hydration resistant, and when mixing the ingredients before firing, hydration of the calcia is minimized by coating particles of the source of calcia with e.g. stearic acid or ethyl cellulose in a solvent.  Dolomite may be used as a source of calcia. The oxides may be used as such or materials convertible to the oxides on firing may be used.
Patent GB-654564-A (GB)
Title: Improvements in mowing machines
IPC: A01D34/42
Filed: 1948-12-01
Abstract: 654,564. Mowing-machines. AGRICULTURAL REQUISITES & MECHANIZATIONS, Ltd., and COOPER, G. W. Dec. 1. 1948, No. 31112. [Class 6(ii)] A mowing machine, of the type described in Specification 624,321, is provided with an adjustable ledger-blade 14. The blade is secured to an angle-section bracket 16 which can rock on an anglemember 19 secured to the main frame. The member 19 is welded to the depending flange of a transverse angle-member 13 itself welded to another frame member 11. Screws 20 pass through the members 13 and 16 and enter a round bar 22 lying in the angle of the bracket 16. Set-screws 23 threaded through the member 13 bear on the bracket 16 to adjust the setting of the ledger-blade relatively to the cutter cylinder 12. Forwardly-extending fingers 18 are riveted to the bracket 16 below the ledger-blade. The mown grass passes over an inclined plate 29 to an endless. elevator, as in Specification 624,321.