baber/WOPTO huggingface dataset:
Patent GB-180602-A (GB)
Title: Improvements in stands for cycles and the like
IPC: B62H3/00
Filed: 1921-08-25
Abstract: 180,602. Artus, A. J. Aug. 25, 1921. Stands.-A collapsable cycle stand comprises two end standards A, B, each formed of a pair of side pillars 2 rigidly fixed to a transverse base member and provided with bracket plates 3 to receive the wheel spindles &c. of the cycle, the end standards being coupled together by jointed stay-rods 5, 6 adapted to fold upwards, as shown, when the stand is collapsed. The standard A is provided with longitudinally-disposed foot-pieces 4, between which the standard B is accommodated when the stand is folded.
Patent GB-753228-A (GB)
Title: Moulds for precision casting of metal
Inventor: EMBLEM HAROLD GARTON
IPC: B22C1/18
Filed: 1953-08-18
Abstract: A method of forming a mould or core for precision casting of hollow turbine blades &c. consists in adding an aqueous solution of an alkali metal silicate to an excess of an aqueous solution of a mineral acid, mixing with the acid reaction products so formed a stable substantially electrolyte-free colloidal dispersion of silica in water and using the resultant liquid to bind a refractory mould material, such as mullite, sillimanite, calcined kaolin or fireclay grog, with zircon or zirconia.  Wetting agents and/or foam inhibitors may be added.  Thus, a diluted sodium silicate solution is mixed with dilute nitric acid, and ethyl hexanol as a foam inhibitor and "Teepol" (R.T.M.) as a wetting agent are added.  The liquid is further acidified by adding concentrated hydrochloric acid and the colloidal dispersion of silica in water is then added immediately. The resulting liquid is added to equal parts by weight of zircon sand and calcined kaolin.  The Provisional Specification describes also the use of other alkali metal or ammonium silicates in place of sodium or potassium silicate.
Patent GB-461324-A (GB)
Title: Improvements in or relating to high frequency electric transmission lines
IPC: H03H2/00
Filed: 1935-08-12
Abstract: 461,324. Distributing music &c. BLUMLEIN, A. D. Aug. 12, 1935, No. 22724. [Class 40 (iv)] [Also in Group XL] A transmission line supplied at one end by a source of high-frequency A.C. has a load connected thereto at an intermediate point by a bridge circuit with two coupled inductive arms and with its remaining arms and diagonals constituted by the load, an auxiliary impedance and the parts of the line preceding and following the connecting point, the parts having such values that the current flowing beyond the connecting point is unaffected by variation of the load current. The bridge, Fig. 1, illustrating the principle of the invention, is provided with two close-coupled arms 2, 3 and 3, 4, constituted by an auto-transformer, the other arms of the bridge being formed by impedances A, B, while impedances P, Q form the diagonals. If the values of the impedances P, Q and the ratio of the turns in the coupled arms 2, 3 and 3, 4 are suitably chosen, and P is the source of A.C., the magnitude of the current flowing to A is independent of that flowing to B and vice versa. Such a system is shown in Fig. 2, in which a source of current 1 corresponding to impedance P supplies the transmission line 2 and a load 3 connected thereto by a transformer 6, the loads 3 and 2 corresponding to A and B respectively. Loading impedance 4 corresponds to Q. Referring again to Fig. 1, if the values of the impedances A and B and the ratio of the turns in the coupled arms 2, 3 and 3, 4 are suitable, then if A or B is a source of current the magnitudes of the currents which flow to P and Q are independent of one another. This system is illustrated in Fig. 3 (not shown).
Patent GB-194255-A (GB)
Title: Improvements in or relating to self-feeding brushes
IPC: A46B11/06
Filed: 1922-08-21
Abstract: 194,255. Cheron, J. J. Feb. 28, 1922, [Convention date]. Self-feeding brushes; brushes combined with liquid-distributing nozzles; bristles, fixing. - A hollow head 1 to which water is admitted through a hollow handle 10 is provided with two cheeks 13, of which one only is shown, pivotally connected to a collar 18 slidable on the handle. A spring 20 is actuated between the collar and a flange 21 and acts to hold the head 1, together with a packing member 11, against the inner end of the handle. The cheeks 13 are connected by pivots 14 to the limbs of a forked bell-crank lever 15 pivotally mounted on a boss 16<1> on the handle and connected to a control-rod 17, to which is attached a trigger pivotally connected to the outer end of the handle. When the trigger is pulled the head 1 is moved clear of the handle against the action of the spring 20. In a modification, the head may be moved through the medium of a push rod. The head 1 is provided with recesses 4 to receive brush elements comprising bristles 5 or cut pieces of indiarubber which are enclosed in ferrules 6. the elements being retained in position around an annular wall formed on the head 1 by means of a plate 7 secured to the head by a locking bolt 8. The plate is provided with openings for the brush elements and with orifices formed to direct the water to the points of the bristles. In a modified construction, the brush elements are secured in position by a socket member screwed to a boss formed on the hollow head. In a further modification, a single-brush element is used, consisting of an annular row of bristles held upon a core by iron wire, the core being secured to the head by a locking bolt.
Patent GB-723062-A (GB)
Title: Improvements in or relating to pedal tricycles
Inventor: REDMOND PETER IGNATIUS
IPC: B62M9/16
Filed: 1952-09-11
Abstract: 723,062. Crank-axle brackets. PHILLIPS & CO., Ltd., J. A. Nov. 20, 1953 [Sept. 11, 1952] No. 22795/52. Classes 136(2) and 136(3). In a pedal tricycle of the kind in which the rear axle is fixed in relation to the frame and the bottom bracket is slidably mounted for adjusting the tension of the chain, the bottom bracket 13 has a bearing plate 14 which engages a complementary attachment plate 15 secured to or integral with the tricycle frame 16, the bearing plate 14 being slidable with respect to the plate 15 under the control of adjusting means 22 in a direction for varying the tension of the chain. The adjusting means comprises a stud 22 secured to the bottom bracket 13 and passing through an opening in a lug 23 formed in the plate 15. An adjusting nut 24 is provided. The adjusting means may be locked by a lock nut 26 (Fig. 4). In the embodiment shown in Figs. 1 and 3, studs 18 are secured to the plate 14 and slide in slots 19, in the plate 15 the plates being clamped in adjusted position by nuts 20. In an alternative embodiment shown in Figs. 4 and 6, the plates 14, 15 are arranged in a slidable keying position by a dovetail joint.
Patent GB-1039346-A (GB)
Title: Improvements in or relating to control means for turbo-generators
IPC: F01D17/24
Filed: 1963-06-07
Abstract: 1,039,346. Automatic speed control. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). June 7, 1963 [June 8,1962],No. 22817/63. Heading G3R. A stream turbine 1 drives alternator 2 and exciter 3, steam-regulating valve 4 being adjusted by servomotor 5. The output voltage of the exciter indicates the turbine speed and is applied to circuit 12 for comparison with a reference signal. The speed error signal is supplied to mixer 7 which also receives a control signal from souree 9 and a feed-back signal from a position-sensitive device 11 indicating the actual setting of the valve 4. The output signal 6 of the mixer 7 indicates the error between the actual setting of the valve and the position of the valve called for by the speed error signal and the control signal. The signal 6 is applied through amplifier 14 to a fine action electro-hydraulic control 15 for the servomotor. Signal 6 is also applied through amplifier 16, which blocks the signal unless it exceeds a predetermined value, to a rapid action electro-hydraulic control 17 for coarse regulation of the servomotor.
Patent GB-338539-A (GB)
Title: Improvements in or relating to torpedoes
IPC: F42B19/12
Filed: 1929-06-17
Abstract: 338,539. Aktiebolaget Lesto, (Assignees of Ljungstrom, F., and Nilsson, TG.). July 27, 1928 , [Convention date]. Divided on 316,293. Torpedoes, locomotive.- Leakage of exhaust gases from the engine 2 or of water into the engine compartment confined by bulkheads A, B is prevented by the admission into said compartment of an auxiliary medium such as air at a pressure higher than exhaust pressure. The packings of the engine shaft are labyrinth packings so dimensioned that the auxiliary medium flows inwards into the exhaust conduit 5, which is provided with a spring-loaded check-valve 36, counterbalanced by pressure from the gas-producing chamber when the torpedo is in operation. 'The propeller shafts are provided with packings as' described in Specification 316,293.
Patent GB-1382212-A (GB)
Title: Control apparatus for vehicles having hydraulic drive mechanisms
IPC: B62D11/02
Filed: 1973-05-15
Abstract: 1382212 Hydrostatic transmission control linkage OWATONNA MFG CO Inc 15 May 1973 [19 May 1972] 22968/73 Headings F2D F2K and F2W [Also in Division B8] In a hydrostatic transmission for a vehicle having wheels on each side which are driven by axial piston hydraulic motors, supplied by hydraulic pumps 32, 33 driven by the same prime mover, each pump supplying the motor for one side of the vehicle, the pumps are of variable displacement swash plate type and are adjusted for forward and reverse motion of the vehicle and for steering by a lever 42, to a crossbar 47 attached to control rods 43 and 44 for control of pumps 32 and 33 respectively. The lever 42 is journalled for pivoting about its own axis in a socket 52, which socket is fixed to an elongate transverse bearing 53 for movement back and forth of lever 42. Movement back and forth of lever 42 adjusts both pumps together for forward and reverse, whilst pivoting in socket 52 differentially adjusts the pumps for steering. Springs 64 bias the lever 42 to a neutral position. A telescopic damper (Fig. 4, not shown), dampens fore and aft movement of lever 42, although separate dampers may be attached to the displacement varying levers 38 and 39 of the pumps instead (Fig. 7, not shown), which provides damping of the steering movement of lever 42 as well. The vehicle may have an hydraulically operated bucket or fork at its front. Adjustable stops in the form of bolts 62 and 63 are provided for the bar 47.
Patent GB-448488-A (GB)
Title: Improvements in or relating to hydraulic power mechanism for milling and other machine tools
IPC: B23Q5/26
Filed: 1935-08-16
Abstract: 448,488. Hydraulic transmission of power. WANDERER - WERKE VORM. WINKLHOFER & JAENICKE AKT.-GES., Schonau, near Chemnitz, Germany. Aug. 16, 1935, No. 23064. Convention date, Aug. 16, 1934. [Class 69 (ii)] Hydraulic power transmission mechanism for milling and other machine tools is provided with a member adapted to be made subject to the pressure of the working medium, so that it is displaceable thereby against resilient biassing means to control the exhaust or counter pressure, and adjusting means whereby the apparatus may act to vary the counter pressure or maintain it substantially constant. The apparatus comprises a piston 3, Figs. 1 and 4, loaded by a spring 8, the pressure of which may be adjusted by means of a screwed member 10, and working in a ported sleeve 2. The sleeve may be turned into various operative positions, and held in them by a spring-pressed member 38, the positions being indicated by a pointer 30 and scale 31. When the sleeve is in the position shown, the pump pressure acts through a pipe 23 on the piston 3 in opposition to the spring 8, and the piston moves to vary degree of throttling and thus the pressure of the exhaust liquid passing through pipes 22, 20. When the sleeve is turned through 180‹, the pump pressure no longer obtains access to the piston, and the exhaust pressure is kept at a constant value determined by the setting of the spring. When the sleeve is in an intermediate position, shown in Fig. 6, the exhaust is not throttled.
Patent GB-742027-A (GB)
Title: Improvements in pressure reducing valves
Inventor: TUNNELL FRANK GEOFFREY
IPC: G05D16/06
Filed: 1953-08-22
Abstract: 742,027. Pressure-regulating valves. HYMATIC ENGINEERING CO., Ltd. Aug. 20, 1954 [Aug. 22, 1953], No. 23213/53. Class 135. A pressure reducing valve comprises a number of valve units a of the kind having-projecting spindles b and commonly used for pneumatic tyres arranged, e.g., in a circle so as to be actuated by a ring h carried by a flexible diaphragm f which is exposed on its upper surface to atmospheric pressure and is loaded by a spring i. The valve units are arranged in parallel between the inlet d and the outlet e and the outlet pressure acts on the diaphragm in the valve-closing direction.
Patent GB-311611-A (GB)
Title: Improved sparking plug for internal combustion engines and method of manufacturing the same
IPC: H01T21/02
Filed: 1928-08-13
Abstract: 311,611. Bruzzone, L. Aug. 13, 1928. Sparking-plugs. - The insulation consists of, glass 2, sustained by a flanged sleeve of porcelain 7 and covered by a cap 8, also of glass, protected by a mica tuba 9. The glass 2 is fused while in position, air and excess material being exuded through openings 12 when pressure is subsequently exerted. The cylindrical part of the porcelain 7 is spaced apart from the casing, and owing to its heat retaining properties serves to burn off deposited oil. In manufacture the conductor 3 is supported on a member 13, 14, Fig. 3, and heated in a furnace to a dark-red glowing heat. The casing containing a glass tube and the porcelain 7 is heated to a light red glowing heat, and placed over the conductor and its support. Pressure is then exerted by the hot plunger 15.
Patent GB-1027897-A (GB)
Title: Improvements in or relating to propylamine derivatives
IPC: C07C255/32
Filed: 1963-05-03
Abstract: The invention comprises compounds of general formula <FORM:1027897/C2/1> and their acid addition salts, and their preparation by reduction of corresponding nitriles under basic conditions.
Patent GB-926766-A (GB)
Title: A process for the production of elastomers
IPC: C08G18/86
Filed: 1960-07-05
Abstract: In a process for the production of an elastomer by cross-linking a polyurethane mass which has been obtained by reacting a diisocyanate with a linear polyhydroxy compound having a molecular weight above 1,000, and also, if desired, with a compound having a molecular weight below 1,000 and which contains two groups capable of reacting with NCO groups with an organic peroxide with simultaneous shaping, the cross-linking is effected in the presence of an organic compound which contains at least two polymerizable C=C double bonds. Polyesters, polyethers, and polyacetals are suitable compounds of molecular weight above 1,000.  Those below this M.W. include butanediol, butenediol, butinediol, dichlorodiaminodiphenylmethane, dichlorobenzidine, N-di(b -oxyethyl)naphthylamine and an adduct of butenediol and anthracene.  Compounds containing at least two C=C bonds specified are aromatic compounds with at least two vinyl groups; esters of polyhydric alcohols such as glycol dimethacrylate; esters of unsaturated alcohols, such as polyallyl esters of phthalic, silicic or phosphoric acids; ethers such as the allyl ethers of glycerol, hexa- or tetramethylolmelamines or saccharose; urethanes from polyisocyanates and olefinic alcohols; unsaturated polyesters; triacrylyl perhydro-s-triazine; and triallyl cyanurate.  In Examples (1) and (2) the polyurethane mass is prepared from glycol/adipic acid polyester, butanediol and (1) 4,41-diphenylmethane diisocyanate or (2) hexamethylene diisocyanate.  It is mixed with activated carbon black, dicumyl peroxide and triallyl cyanurate and cured in a press; (3) a polyurethane mass from the polyester and dicyclohexyl methane-4,41-diisocyanate is similarly cured.  Specification 862,232 is referred to.
Patent GB-316586-A (GB)
Title: A device for the knotless tying up of parcels, packages, mail matter and the like
IPC: B65D63/14
Filed: 1929-07-31
Abstract: 316,586. Koczi, L. July 31, 1928, [Convention date]. Bundling.-A device for knotless tying up of parcels, packages, mailmatter, &c. comprises a plate 1 with a thumb-hole 4 to facilitate handling, a clamping disc 5 under which the string' 3 is secured by winding it in the recess 6, and a hole 2 by which one end of the string is secured to the plate, the hole 2 being disposed between the transverse lines C, C<1> through the centres of the aperture 4 and stud 5 respectively. Means to facilitate bundling together a number of the above devices as in Fig. 8 for transport &c. comprises a post 11, Fig. 7, having a pointed lower end near which is provided a disc 12, and an eye 13, which may be slotted, at its upper end. In use, one of the tying devices is placed on the post (which is passed through thumb-aperture 4) with its button 5 downwards, and the string 3 is passed through the eye 13. The other devices to be bundled are then threaded on to the post, the free end of string 3 is then withdrawn from the holes 4 and eye 13, and finally secured to the button 5 of the lowermost device.
Patent GB-278872-A (GB)
Title: Improvements in and relating to load weighing means for lifts, cranes, hoists and like lifting apparatus
IPC: G01G19/16
Filed: 1926-09-24
Abstract: 278,872. Tuckett, F. S. Sept. 24, 1926. Hydrostatic apparatus; printed records, apparatus for giving. - A weighing-machine which may be interposed between the lifting wire, ram, or other lifting member of a lift, crane, hoist, &c. and the load, comprises a recording device adapted to be set for recording in accordance with the weight by hydrostatic means and to be operated electrically, pneumatically or otherwise by means independent of the setting means. The fluid beneath the piston c, from which the load is suspended, communicates by a pipe d with a Bourdon tube f which rotates a graduated type ribbon g mounted on a frame h. A paper strip l carried by rollers l<1>, l<2>, l<3>, and marked with graduations, is fed at a predetermined rate by a clockwork motor n, an ink ribbon m being provided between the type ribbon g and the paper strip l. The paper and ink ribbon are mounted on a carriage q slidable on an arm o under the action of toggle link mechanism n<1> controlled by solenoids n<2>, n<3>. When the solenoids are energized, by hand or by automatic means controlled by the movement of the load-carrying means, the carriage q is moved towards the type ribbon g, a pad p carried by a lever p' is moved against the back of the type ribbon and an impression of the weight figures is made upon the paper l. The arm o is pivoted on a pin o<1> and may be rocked in a vertical direction by means of toggle link mechanism o<3> controlled by solenoids o<4>, o<5>. Thus, when a tare weight is to be printed the arm o is depressed so as to lower the paper strip l and present a different column of the paper to the type ribbon. In a modification, instead of a continuously-moving paper strip, the strip may be moved by a ratchet each time the weight is recorded and the time may also be marked on the strip. In a further modification, the gauge is fitted with a hand having at its head a rectangular metal block which may be pressed on to a rubber type dial to give a record on a roll of paper, the lock being actuated electrically or pneumatically preferably by hand control from a distance.
Patent GB-982833-A (GB)
Title: Improvements relating to percussive tools
Inventor: ALCOCK JOHN FORSTER
IPC: E21B6/06
Filed: 1960-07-06
Abstract: 982,833. Percussive drills. WARSOP POWER TOOLS Ltd. July 5, 1961 [July 6, 1960], No. 23652/60. Heading B4C. Apparatus convertible from a rock drill to a road breaker comprises a chuck 21 for a tool 11, a hammer piston 12 adapted to strike the tool, mechanism for rotating the chuck slightly at each stroke of the piston, means for supplying compressed air to a chamber 29, and an actuator 34 having a first position (Fig. 5) in which a detent 40 locks the chuck against rotation and compressed air escapes from the chamber, and a second position (Fig. 4) in which the chuck rotates and the escape of air is prevented so that all the air is discharged through a passage 32 in the tool. The chuck is rotated by pawls 26 on a rotary member 25 which engage a ratchet-wheel 27 on the chuck, the member being oscillated by a lever 22 on a rock-shaft 19. The shaft 19 is rocked by a lever (not shown) at its upper end and which is pressed by a spring against an eccentric on the camshaft of the I.C. engine driving the apparatus. A flange 28 on the piston pumps air to the chamber 29. In the first position the actuator cam 38 engages a lever 39 to turn the shaft 19 so that its upper lever is moved away from the eccentric, and a passage 44 in the actuator is opened to vent the chamber. In the second position the cam 38 is removed from the lever 39 to permit the shaft 19 to rock, and engages a lever 41 on the detent to free the member, and the passage in the actuator is closed.
Patent GB-318373-A (GB)
Title: Apparatus and process of distilling and burning coal
IPC: C10B1/10
Filed: 1928-08-17
Abstract: 318,373. Reed, H. S., and Lamie, R. D. Aug. 17, 1928. Rotary furnaces; charging and discharging.-A continuous process for distilling carbonaceous material and burning the residue consists in heating the material such as coal in a rotary retort 8 containing angular and spherical grinding elements of heat conducting material so that the residue is powdered, the hot powdered coke being delivered to a combustion chamber. Coal from a hopper 10 is preheated in a trough 9 having a conveyer screw 91, and passes by a conduit 11 to a multiple screw feeder 12 comprising a lower feed screw 122 and two troughs 123, 125 of different lengths having feed screws 124, 126 respectively. The retort is divided into chambers 85, 86, 87 by partitions 83 having scalloped edges 831 and perforations 832 to allow passage of ground coal but to retain the grinding elements which are reduced in size as the coal approaches the outlet of the retort. Buckets 881 raise the coke and drop it while hot into a discharge conduit 13 from which it is fed by a screw conveyer 131 to a valve controlled discharge pipe 134 and delivered by another conveyer 192 to a furnace 19. Primary air for combustion is supplied by a fan 196 and conduit 195 secondary air entering by inlets 197. Air for gas burners 185 is preheated in flues 22 which surround the smoke flues 21. The combustion products from the burners pass by conduits 4 around the retort 8, and, by adjusting dampers 61, 71 in flues 6, 7, Fig. 2, the heating of the trough 9 may be regulated.
Patent GB-1504054-A (GB)
Title: Electrical isolaters
IPC: G05F1/12
Filed: 1975-05-31
Abstract: 1504054 D.C. isolators T J SEARLE 20 May 1976 [31 May 1975] 23750/75 Heading H3T An electrical isolator comprises a transformer having a discrete impedance in series with its primary and a high gain linear amplifier connected to its secondary, a feedback current being taken from the output of the amplifier and applied to a winding of the transformer in such a sense as to oppose the flux set up by the primary. In one embodiment, Fig. 1, the amplifier is an inverting amplifier and feedback is by means of a resistor 8 to the secondary winding. In a modification, Fig. 2 (not shown) the feedback is to a third winding. If the amplitude of the signal is not significant, feedback may be by a pair of oppositely poled parallel diodes. The isolators may be used in a radar system, for example, for coupling synchro or resolver signal to an analog to digital converter.