baber/WOPTO huggingface dataset:
Patent GB-407827-A (GB)
Title: Tripod stand for guns
IPC: F41A23/12
Filed: 1933-03-16
Abstract: 407,827. Tripod gun - mountings. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, and HOLEK, V., 7, U. Lazaretu, Brunn, Czecho- Slovakia. March 16, 1933, No. 8041. [Class 92 (i).] To facilitate firing against aircraft, the rear leg 1 of the tripod is swung into vertical position to support the gun 4 at a higher level, and a rifle or similar member 21 is substituted for this leg to complete the stand. The connection member 19, which normally supports the gun at the tripod head, is also adapted for attachment to the bayonet holder at the muzzle of the rifle 21 and a similar member 19 is used for connecting the gun 4 to a bracket 18 at the upper end of the extension member 1.
Patent GB-878225-A (GB)
Title: Improvements in or relating to printing mechanism
IPC: B41J29/18
Filed: 1957-03-12
Abstract: 878,225. Cash registers. GROSS, H., and GROSS, D. Feb. 4, 1958 [March 12, 1957], No. 8099/57. Class 106 (1). A cash register has a detail strip 2 which is fed in each operation, in one direction only, from a printing position p to a viewing position v, these positions being separated by a distance not more than two and a half times the height of the characters printed. As shown, the viewing position lies along one surface 13 of the printing platen which makes an acute angle with the operative surface. The latter has a resilient insert 12 adjacent to the type from which printing is effected. The acute angle of the platen round which the strip is fed may be rounded as at 17.
Patent GB-1100125-A (GB)
Title: Thread supervision device
IPC: B65H63/06
Filed: 1965-02-25
Abstract: 1,100,125. Photo-electric thread supervision. W. REINERS. Feb.25, 1965 [Feb.29, 1964; March 20, 1964], No.8139/65. Heading G1A. [Also in Division D1] A thread supervision device for a textile machine comprises at least one elongated lamp and a light-sensitive element between which the thread passes. The thread 5 is illuminated by a festoon bulb 1 and variations of the crosssection of the thread in any direction cause variations in the output of light-sensitive element 6. To increase sensitivity, screens 7 and 8 may be provided to reduce the light reaching the element 6 without touching the thread. The lamp 1 may be under-run to increase its life. When a long length of thread is to be investigated, a number of lamps, Fig. 2 (not shown), may be provided.
Patent GB-766232-A (GB)
Title: Apparatus for automatically filling well casing
IPC: C09K23/00
Filed: 1955-03-21
Abstract: 766,232. Well apparatus. BAKER OIL TOOLS, INC. March 21, 1955 [April 2, 1954], No. 8166/55. Class 85. A valve controls the filling of a well conduit whereby the conduit can be filled to a predetermined height while running in after which cement slurry &c. can be pumped down the conduit when the valve functions as a non- return valve to prevent fluid flowing up through the conduit. A casing 10, having a cementitious plug 14, is secured to the bottom of a well conduit B. A valve guide member 28 is supported by the hub 25 of a spider 24 having ribs 26. The guide member is prevented from upward movement by the engagement of a shoulder 39 with a frangible flange 38 on the hub 32 of an upper spider 33 which itself is held from upward movement by a lower valve seat 35. The upper end 40 of the guide member 28 is formed as a piston and slides in a bore 39, containing air, of a valve head 43. While the conduit is being lowered in the borehole fluid flows up through the spiders 24,33 lifting the valve head 43 off its lower seat 35 and passing up through the conduit B, the valve head 43 being prevented from engaging an upper seat 20 by a pin 45 on the valve head engaging the bottom of the piston 40. The upper surface area of the valve head 43 exposed to downward fluid pressure is greater than the lower surface area exposed to upward fluid pressure so that when the ratio of the head of fluid in the conduit to that outside the conduit in the borehole is the same as the ratio of said surface areas the valve head 43 closes on its lower seat 35. Pressure is applied to the fluid in the conduit until the flange 38 shears off and the spider 33, valve seat 35 and valve head 43 move downwards, see Fig. 4, the head being held off the lower seat 35 by the piston 40. Cement slurry can now be pumped down through the conduit. After cementing, upward flow of fluid through the conduit is prevented by the head 43 being pushed upwards on to the upper valve seat 20, the pin 45 engaging the piston 40. and raising the guide member 28 with it. (See Fig. 5 not shown). The internal mechanism of the valve may be made of readily drillable materials such as magnesium alloy, aluminium alloy, cast iron or the like. Specification 714,910 is referred to.
Patent GB-555168-A (GB)
Title: Improvements relating to hair curlers
IPC: A45D2/24
Filed: 1942-06-16
Abstract: 555,168. Haircurling devices. TAYLOR ENGINEERING CO., Ltd., and YATES, V. D. June 16, 1942, No. 8238. [Class 131] A hair curler comprises a base strip a of metal or other hard material, a resilient clip hinged thereto at b, f, the clip being formed by bending a strip e of metal, &c. upon itself, and a movable catch d adapted to clamp the clip to the base strip. As shown the catch d is slidable along the base strip but, in a modification, it may be hinged thereto.
Patent GB-1284486-A (GB)
Title: Process for preparing nucleoside 5'-polyphosphates
IPC: C07H1/02
Filed: 1970-02-20
Abstract: 1284486 Nucleoside-5<SP>1</SP>-polyphosphates ASAHI KASEI KOGYO KK 20 Feb 1970 [17 May 1969] 8238/70 Heading C2P A nucleoside-5<SP>1</SP>-polyphosphate is prepared by reacting the corresponding nucleoside-5<SP>1</SP>- phosphorodihalide with phosphoric acid or pyrophosphoric acid or an organic amine salt of one of these acids, in an organic solvent, and hydrolysing the resulting reaction mixture by contacting with water. When phosphoric or pyrophosphoric acid is used, the reaction is preferably carried out in the presence of an organic amine. The nucleoside- 5<SP>1</SP> -phosphoro - dihalide starting materials may be prepared by phosphorylating the corresponding nucleoside in which the 2<SP>1</SP> and 3<SP>1</SP> hydroxy groups are unprotected with a halogenated phosphorus compound. Specified nucleosides are cytidine, adenosine, uridine, guanosine and inosine.
Patent GB-1261735-A (GB)
Title: Feedback amplifier arrangements
IPC: H03G3/20
Filed: 1969-02-14
Abstract: 1,261,735. Automatic gain control. LKB-PRODUKTER, A.B. 14 Feb., 1969 [16 Feb., 1968], No. 8272/69. Heading H4R. [Also in Division G1] The gain of an amplifier 7 is stabilized at a desired value by temporarily comparing the output of the amplifier with a reference potential Vr in a differential amplifier 11 to derive a difference signal Vs which controls the effective gain of the negative feedback path 8, 9, 10, of  the amplifier 7. When the gain has been set to a value to substantially eliminate the difference between the amplifier output and the reference potential, switch 14 is operated to connect the reference potential to the input terminal of the differential amplifier 11, which previously had the amplifier output connected to it. The terminal to which the reference potential was applied has its potential held by capacitor 13 so that the differential amplifier acts as a store to substantially maintain the error signal Vs and hence the gain of the negative feedback path of the amplifier at the existing value, e.g. while a series of measurements is made. As described the control signal controls the repetition frequency of a square wave controlling the chopping of the signal Vu from the output of the amplifier, the chopped signal is fed to an integrator, 9, which provides a signal whose peak to peak value is dependent both on the period of the chopping signal and the value of the amplifier output. The peak to peak value is then detected and provides feedback to the amplifier input. The amplifier may be connected to a photo-electric detector which is measuring the light transmission or extinction of a sample 6, e.g. for the determination of enzymatic activity of biorganic liquids such as blood. If the extinction is to be measured a logarithmic circuit 15 may be included.
Patent GB-1382454-A (GB)
Title: Grabs
IPC: E02F3/413
Filed: 1972-02-23
Abstract: 1382454 Grab buckets CONSTRUZIONI CEMENTO COMPRESSO FONDISA SpA 23 Feb 1972 [1 March 1971] 8290/72 Addition to 1200575 Heading B8H The nut and screw actuator mechanism of the grab bucket of the grab bucket excavator of Specification 1,200,575 is now housed in an oil bath having a casing formed in two parts of which one part comprises a circular sleeve 4 rigidly fixed to the nut 8 and to the casing 5 of a sealing gland 6 and the other part comprises a sleeve 11 telescopically and rotatably mounted on the sleeve 4 in sealing engagement therewith whilst extending downwards about the threaded portion 1a of the screw 1 to be secured to a closure member 13 supported by a sealing and bearing assembly 12, 14 on the lower end of the screw 1. The closure member 13 is attached to a plate 16 carrying a plate 17 on which the jaws of the bucket are pivoted at 19, 20. At least one of the chambers 7, 7a is connected to an external reservoir having at least one expandable and contractable wall to accommodate oil flowing to and from the bath owing to the pumping effect caused in the bath by rotation of the screw. The oil bath and reservoir can be located within a protective casing axially secured with respect to the oil bath but rotatable thereabout before abutting the casing so that opening or closing of the jaws does not occur immediately the protective casing engages the walls of an excavation, such as a trench, being dug out by the grab bucket.
Patent GB-1182752-A (GB)
Title: Child's Safety Seat for a Vehicle
Inventor: DAVIS WILLIAM HENRY
IPC: B60N2/28
Filed: 1968-02-20
Abstract: 1,182,752. Childs seat. F.D.T.S. Ltd. 29 April, 1968 [20 Feb., 1968], No. 8291/68. Heading A4J. [Also in Division A3] A childs safety seat for vehicles comprises a single L-shaped metal plate forming a seat 5, and back 4 and provided with anchoring members 10 for straps 8, 9 at the upper region of the back and at the region where the back joins the seat. The two upper straps 8 pass over the top of the back 1 of the rear seat of the vehicle and are secured to eye-bolts, either on a structural member of the car near the rear panel shelf or on the decking of the vehicle (Fig. 2). The single strap 9 passes between the back and seat of the rear seat and is secured either to the seat pan or to the decking (Fig. 2). The straps 8, 9 have length adjusters (11). Two L-shaped plywood side members 6 are secured to the metal plate and the seat and back are padded with foam polyurethane and covered with p.v.c. A child's harness comprises an adjustable shoulder strap 12, an adjustable waist strap 13, an adjustable crutch strap 14 and a quick release buckle. The harness straps pass through holes in the padding and the metal plate.
Patent GB-1165396-A (GB)
Title: Mechanical Handling Apparatus
Inventor: HUMPHREYS GEORGE
IPC: F27D3/04
Filed: 1967-02-21
Abstract: 1,165,396. Reciprocating conveyers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 2 Feb., 1968 [21 Feb., 1967], No. 8314/67. Heading B8A. [Also in Division F4] Apparatus for moving a line of metal billets B1-B10 through an induction furnace 15 comprises a fixed support 17, a movable skid 19 thereupon supporting the billets, pusher mechanism designed, firstly to push a new billet B11 into the furnace moving leading billet B1 on to the exposed length Y of support 17 (Fig. 2), and secondly to push skid 19 forward, discharging said billet B1 down shoot 63, Fig. 3, and a counterweight 53 to move the skid back to its original position. Action is initiated by a signal from a temperature-sensitive device 65 sighted on the first billet B1 or by a timer. On receipt of the signal, push rod 25 is moved by hydraulic motor 29 to propel new billet B11 into contact with the row of billets and to propel the latter forwardly until leading billet B1 is pushed on to support 17. At this point, represented by the distance X, Fig. 1, a collar 27 on rod 25 engages a flange 41 on control mechanism 31 slidable on a fixed rod 33 and attached by a tube 35 with flange 37 to the skid 19, whereupon the latter is moved forward to discharge billet B1. Flange 37 strikes a limit switch 67, Fig. 3, reversing the ram 25 and thus releasing flange 41. The control mechanism 31 is then drawn back on rod 33 by counterweight 53 to its original position against a stop 61. Variable billet lengths are allowed for by varying the distance X by relative adjustment of the telescopic sleeves 35 and 39 on the rod 33. To this end an abutment 45 on flange 41 has a threaded rod 47 having arms 47A riding in slots 49A in a tube 49 rotated by a hand wheel 51.
Patent GB-1068425-A (GB)
Title: Improvements in or relating to the regulation and control of heating or furnaces
IPC: F23N5/02
Filed: 1965-02-26
Abstract: 1,068,425. Gas burners. COMPAGNIE FRANCAISE DE RAFFINAGE. Feb. 26, 1965 [March 2, 1964], No. 8342/65. Heading F4T. [Also in Division G3] The gas flow to the burners of a furnace is controlled to maintain the product of the Wobbe index and the square root of the pressure constant. The flow of gas is controlled by a valve 1 under the control of a regulator 3 which receives a signal of the gas pressure from a gauge 2 and the Wobbe index from a Wobbemeter 5. Gas is supplied to the Wobbemeter 5 through a regulator 5a which includes an orifice and a valve for maintaining a constant pressure drop across the orifice. The Wobbemeter is supplied with air at a constant flow and the temperature rise of the air, which is heated by the burnt gas in the meter is a measure of the Wobbe index. This is compared with a set value and a signal proportional to the difference is fed to regulator 3 and combined with a signal representing the square root of the pressure to control the valve 1. The gas flow fed to the furnace through lines 8 and 14 is adjusted by a regulator 9 in response to a temperature regulator.
Patent GB-327552-A (GB)
Title: Improvements in splash guards for vehicle wheels
IPC: B62D25/18
Filed: 1929-03-16
Abstract: 327,552. Freeman, C., and Smith, A. March 16, 1929. Lateral-splash guards. -In a splash guard of the type comprising a disc or spoked ring carried by ball or other antifriction bearings on the outer part of the wheel hub, the disc or ring P is provided with apertures to engage outwardly-projecting screwbolts or pins B on a flanged outer member H of the bearing mounting, and is detachably secured thereon by wing nuts &c. K, the lower part of the disc or ring being provided with a depending rubber flap and with a balance weight. The ball bearings are mounted on a spindle A<11> projecting from the hub cap A, and are protected by an outer cap C. In a modification, roller bearings are mounted on a separate spindle passed through the hub cap and retained by nuts.
Patent GB-307223-A (GB)
Title: Improvements in the production of aromatic carboxylic acids
IPC: C07C51/15
Filed: 1928-03-21
Abstract: 307,223. Johnson, J. Y., (I. G. Farbenindustrie Akt.-(Ges.). March 21, 1928. Aromatic carboxylic acids are produced by allowing carbon dioxide to act, under pressure and at an elevated temperature, on aromatic hydrocarbons or their derivatives in the presence of aluminium halides. According to examples (1) benzoic acid containing benzophenone is obtained from benzene using aluminium chloride, (2) p-chlorobenzoic acid containing some p : p<1>- dichlorobenzophenone is obtained from chlorobenzene and aluminium bromide, and (3) ptoluylic acid containing some p : p<1>-dimethyl. benzophenune is obtained from toluene and aluminium chloride. Commercial xylene yields the corresponding xylic acids, principally 1 : 3 : 4- xylic acid together with some tetramethylbenzophenone.
Patent GB-412899-A (GB)
Title: Improvements in pavement heaters
IPC: E01C23/14
Filed: 1932-10-05
Abstract: 412,899. Roa.d - surface heaters. HAZLEHURST, H. E., 23, Newton Court, Kensington, London. Oct. 5, 1932, No. 8618/34. Divided on 412,630. [Class 107.] Relates to road surface heaters of the kind having a relatively small horizontal combustion chamber into which liquid or like fuel is projected. According to the invention, air is admitted into the combustion chamber in such excess beyond that normally required for combustion, as to ensure the maintenance of a heated body of a non-burning mixture of air and products of combustion between the combustion chamber and the surface being heated. In the form shown, as applied to a heater of the kind described in Specification 412,630, the air is supplied to the combustion chamber by a fan 2 through a valve-controlled conduit 3, the air being preheated in its passage to the fan by its passage through a jacket 4 surrounding the combustion chamber. Turbulent mixing of the gases is effected within the combustion chamber by an upstanding abutment 6, and the products of complete combustion and excess air pass to the heated surface through a vertical conduit B and hood C.
Patent GB-293108-A (GB)
Title: Improvements in and relating to means for cooling transformer windings
IPC: H01F27/12
Filed: 1927-03-29
Abstract: 293,108. Parsons, Sir C. A., and Rosen, J. March 29, 1927. Transformers. - In cooling transformer windings by immersion in a liquid, circulation of the latter is assisted by positive means disposed within the transformer casing. In one form of the invention, Fig. 1, the casing a of an oilcooled transformer b is provided at either the upper or lower end with a. diaphragm d forming an end chamber with which external cooling tubes c communicate. This chamber is also in communication with the main body of the casing by an aperture f in the diaphragm in which is disposed a motor-driven impeller h for circulating the oil. The motor i is disposed inside the casing, and may be connected to the transformer winding on a part thereof, or to a separate auxiliary winding on the transformer core. In an alternative form, Fig. 2, the impeller h is disposed in a chamber k having inlet and outlet tubes kl, k-' arranged so that oil is withdrawn from the space immediately above the transformer and discharged over baffles m into the cooling tubes, the remainder of the oil being subject to thermo-syphon circulation only.
Patent GB-908176-A (GB)
Title: Remote control installation for reversible internal combustion engines
Inventor: LIPPOLDT OTTO
IPC: F01L13/00
Filed: 1960-03-11
Abstract: 908,176. Fluid-pressure servomoter control systems. SCHWERMASCHINENBAU KARL LIEBKNECHT MAGDENBURG VEB. March 11, 1960 No. 8677/60. Class 135. An hydraulically actuated remote control installation for reversible internal combustion engines, particularly marine engines, in which control movements are transmitted from a remote control position to the engine control shaft, comprises a power piston 20 geared to the engine control shaft characterized in that upon the initiation of a control movement by an operating lever 1 operatively connected to a pointer 4, a control lever 7 is actuated correspondingly to move a control piston valve 9 to one or other side of a neutral position to open a supply pipe and allow the flow of pressure medium to one or other side of the power piston, the pressure medium at the opposite side of the power piston being returned to the cylinder 9a of the piston valve and from thence flows into a cylinder 39 containing a follow-up piston 8, the latter moving so as to return the control member to its initial position and simultaneously move a follow-up lever 28, operatively connected to a follow-up pointer 32, to a position corresponding to the movement of the operating lever 1 thereby causing the follow-up pointer to repeat the movement of the first pointer thus indicating that the control movement has been applied to the engine control shaft. In operation, as applied to a marine engine, when e.g. the operating lever 1 is rotated to the astern position, a shaft 2, to which the pointer 4 is secured, is moved and thereby, via a rack-and-pinion drive 3, 6, rocks the control lever 7 about a pivot 8a on the follow-up piston rod and so moves the control piston valve 9. Pressurized oil is then admitted through a pipe 14 and, via a pipe 18, acts on one side of the power piston 20, the oil on the other side being forced, via pipes 22, 16, into the cylinder 39 and so act on the follow-up piston 8 which thereby returns the control piston valve 9 to its neutral position and at the same time, via the lever 28 and rack-and-pinion drive 30, 31, causes the pointer 32 to repeat the movement made by the pointer 4. The oil on the other side of the piston 8 is returned, via pipes 15, 23, to a collecting tank 11 of a pneumatic-hydraulic accumulator arrangement. When the volume of oil in the tank 11 reaches a certain level it is returned to a pressure tank 10 by feeding compressed air from a container 42 via valve 26 into the tank 11 and thereby forcing the oil back into the tank 10; the valve 26 is then moved into a vent position and a valve 27 connected with the compressed air feed. In a modification, the accumulator arrangement is replaced by a gear-type pump driven by an electric motor which is energized through a switch actuated by the movement of the control piston valve 9.
Patent GB-1424649-A (GB)
Title: Apparatus for open end spinning of fibres
IPC: D01H4/10
Filed: 1974-02-26
Abstract: 1424649 Open end spinning KOSTROMSKOE SPETSTALNOE KONSTRUKTORSKOE BJURO TEXTILNYKH MASHIN 26 Feb 1974 8701/74 Heading DID In an open end spinning rotor, a sliver-forming annular trough is formed between a frustoconical surface and a level row of pins secured to the surface. Fibres 7 are deposited as sliver 8 in a trough formed by rotor surface 2 and 'by tapered pins 3 projecting from the surface and into rotor shoulder 4. Suction created by one or more vents 9 and one or more vents 10 draws in fibres which slide into the trough, unspinnable fibres and dust passing between the pins into the or each vent 9 and pipe 14.
Patent GB-593437-A (GB)
Title: Improvements in power transmission devices
IPC: F16D31/08
Filed: 1945-04-09
Abstract: 593,437. Hydraulic clutches ; fluidpressure servomotors. WOODHAMS, P. G. April 9, 1945, No. 8793. Addition to 558,227. [Classes 69 (ii) and 135] In a power transmission device having a driving shaft secured to a casting 1 comprising radial cylinders 2, the ends of which are closable by a ported ring 9 to restrict the outflow therefrom caused by pistons 11 secured to the driven shaft, the ring being adjusted by a centrifugal governor or other speed-responsive means, as described in the parent Specification, the speedresponsive means is external to the transmission device and connected indirectly thereto. A boost control may serve as the speed-responsive means and the boost pressure actuate either a servo-piston 42 connected to the control ring 9 or a double-pole change-over switch 75, Fig. 5, in circuit with slip rings 76 and an electric motor 74, the rotor of which is rigid with a screwed spindle engaging a nut on the ring 9.