baber/WOPTO huggingface dataset:
Patent GB-100628-A (GB)
Title: Improvements in or relating to the Settings of Gas Retorts.
IPC: C10B29/02
Filed: 1915-06-08
Abstract: 100,628. Carpenter, H. A., and Riter- Conley Manufacturing Co. June 8, 1915. Retort furnaces.-In a gasretort setting, the brickwork structure containing the retorts, and the enclosing metal casing 30 are separate from one another, so that they can expand and contract independently under the action of heat. The intervening space between the casing and the brickwork is filled with a lining 35 of compressible heatinsulating material, such as kieselguhr. The retort mouthpieces 34 are carried by the cas. ing and, when the structure is assembled, are out of alinement with the retorts, being brought into register when the setting reaches its working temperature. The space between the mouthpieces and the retorts is closed by blocks 36 of a width equal to the distance between the casing and the brickwork when the setting is at working temperature. Leakage of the lining- material during the assembling of the structure is prevented by cardboard strips 37. The casing 30 is formed of overlapping plates bolted together and relatively adjustable lengthways of the setting, so that the mouthpieces can be properly positioned horizontally. The setting is built up of shaped blocks, flanges on which enter into the formation of the walls of the retorts.
Patent GB-1371147-A (GB)
Title: Variable draft semisubmersible vessel
IPC: B63B35/44
Filed: 1972-01-28
Abstract: 1371147 Floating offshore structures SANTA FE INTERNATIONAL CORP .28 Jan 1972 [3 May 1971] 4204/72 Heading B7M [Also in Division E1] In a semi-submersible vessel, e.g. an oildrilling rig (see Division E1) comprising a working platform supported by a column on a base comprising a pair of hollow hulls 12 provided with stabilizing columns 26, the hulls 12 and columns 26 are divided into a plurality of compartments connected by conduits 75, 76, 78, and valves 108 to pumps 92, 94 to effect ballasting and deballasting using sea water. The pumps have a valve controlled inlet 84 and outlet 86 and for ballasting, inlet valve 88 is opened, outlet valve 90 is shut, valves 100, 102 are opened, valve 110 is shut, and the required valve(s) 108 is/are opened. To deballast, valves 88, 100, and 102 are shut and valves 90 and 110 are opened. Ballast may be transferred between the hulls via conduit 114. When the hulls 12 have free board the C.G. of the vessel is located above its centre of buoyancy, but in the high draft position in Fig. 1 the C.G. is below the C.B.
Patent GB-556402-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1942-03-30
Abstract: 556,402. Optical objectives. TAYLOR, TAYLOR & HOBSON, Ltd., and WARMISHAM, A. March 30, 1942, No. 4219. Drawings to Specification. [Class 97 (i)] A photographic &c. objective comprises five components of which the first and fifth are simple and convergent, the second and fourth each consist of a convergent element cemented to a divergent element, and the third is simple and divergent; the algebraic difference between the curvatures of the rear surface of the third component and the front surface of the fourth component is greater than twice, and less than four times, the reciprocal of the equivalent focal length of the whole objective. The second component may be meniscus and convex to the front, and the rear surface of the third component may be convex to the front and more strongly curved than the front surface of the fourth component. The four convergent elements may have a mean refractive index lying between 1.62 and 1.66, the refractive index of the convergent element of the second component may exceed that of the divergent element cemented to it by less than 08, and the excess for the corresponding elements of the fourth component may be more than .08. The refractive index of the third component may exceed 1.65. Data for two examples ate set out.
Patent GB-841693-A (GB)
Title: Shaped charge unit for well perforating
Inventor: MEDDICK LORRAIN DAVIS
IPC: F42B1/02
Filed: 1957-02-07
Abstract: 841,693. Blasting devices. DRESSER INDUSTRIES Inc. Feb. 7, 1957, No. 4243/57. Class 9(1). An explosive charge unit for a well perforator comprises a hollow charge in a metal housing of which at least part is made up of adjacent coaxial rings. The charge 11 with its metal liner 14 is seated in the base 1 of the housing which may be of steel, diecast zinc, aluminium or synthetic resin. The base 1 has a cylindrical boss 2 bored to receive a fuze cord 6 and also houses a booster charge 9, which may have an additional casing 9a, 9b. Between a flared portion 4 of the base 1 and a ring 15, adapted to engage a retainer, the housing consists of ring members 20. A thin metal casing 17 may cover the explosive charge within the housing. The members 20 may be cemented together or they may be part of an integral structure, Fig. 3, in which annular slots are cut. The slots may extend inwards from the outer surface or, as in Fig. 3, may extend from the inner surface nearly to the outer surface. The number of rings may be varied to control the diameter of the hole cut by the gaseous jet when the charge is fired.
Patent GB-141843-A (GB)
Title: Improvements in carpet cleaning apparatus
IPC: A47L5/30
Filed: 1919-02-20
Abstract: 141,843. Johnson, A. H. Feb. 20, 1919. Carpets, beating.-An apparatus for beating carpets in situ, and particularly for use with a vacuum cleaner, comprises a rotated shaft 1 on which are spaced disks 3 carrying between them pivotally-mounted bails 4. The device is shown embodied in a vacuum cleaner, the motor-driven fan spindle 10 being connected by a belt 14 with the shaft 1, which is arranged within a cylindrical portion 15 of the casing.
Patent GB-564273-A (GB)
Title: Improvements in roller bearings
IPC: F16C33/34
Filed: 1943-03-17
Abstract: <PICT:0564273/IV/1> A roller bearing comprises rollers made of a synthetic plastic material moulded under heat and pressure to the required dimensions, said material having a percentage moisture absorption (in accordance with the method of test described), of not more than 6 per cent, and a diametral deformation (in accordance with the method of test described), of not more than that given by the relationship D = W/65, where D represents the diametral deformation in thousandths of an inch and W is the load in pounds. The material is also preferably isotropic, and the rollers may be given a surface treatment with oil, varnish or a metallizing preparation, for the purpose of excluding moisture. Phenol-aldehyde and aniline-formaldehyde resins are specified as suitable materials.  The races and the cages for the rollers may be moulded from a synthetic plastic material.  In Fig. 9, the rollers 1 rotate on the shaft 4, being retained laterally and radially in split housings 2, 3.  Fig. 13 shows rollers 1 with central flanges 4 to retain the rollers laterally.  Fig. 17 shows a construction in which the outer race 3 is made spherical for self-alignment in its seating 4.  According to the Provisional Specification, the invention is applicable also to ball bearings.
Patent GB-607839-A (GB)
Title: Improvements in or relating to gas-turbine power-plants
IPC: F02C6/02
Filed: 1946-02-12
Abstract: 607,839. Propelling aircraft. BRISTOL AEROPLANE CO., Ltd., OWNER, F. M., and MARCHANT, F. C. I. Feb. 12, 1946, No. 4417. [Class 4] [Also in Group XXVI] A power turbine 12 drives a pair of contrarotating aircrews 19 through a shaft 21 and gearing 22. The turbine 12 is fed with combustion gas by a plurality of generators, each comprising a compressor 13, a plurality of combustion chambers 14 and a turbine 15. The compressor is supplied with air from an intake 18 at the leading edge of the wing positioned so as to use the ram effect due to the airscrews 19. The exhaust gases from the turbine 12 pass to a propulsion nozzle in the trailing edge of the wing. The tractor airscrews 19 may be replaced by a pusher airscrew or both a pusher and a tractor airscrew may be employed.
Patent GB-677711-A (GB)
Title: Improvements in or relating to magnetic induction accelerators
IPC: H01F29/14
Filed: 1947-02-14
Abstract: 677,711. Magnetic induction accelerators. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 14, 1947 [Sept. 1, 1943], No. 4423/47. Class 39 (i). The magnetic guiding field Bs, Fig. 1, of a betatron is D.C. biased so that the electrons follow the required circular path both with a negative and a positive induction field Bi occurring between two extreme values - Bim, +Bim, of one half period of this field. The biasing field is provided by two D.C. windings 17, 18, Fig. 2, outside and inside the guiding field poles, the inner winding 18 serving to prevent biasing of the induction field. To prevent the flow of A.C. currents in the D.C. circuit of windings 17 and 18, the circuit may include a choke, or a transformer through which a compensating A.C. voltage may be introduced. The electron equilibrium orbit may be expanded or contracted for the production of X-rays, or for the ejection of the electrons, by saturation of the guiding field poles, or by saturation of the A.C. blocking choke or transformer. The saturation winding of the A.C. blocking choke or transformer may itself include an A.C. blocking choke. By saturation or mechanical variation of the iron circuit of such a choke, a more sensitive control over the expansion or contraction of the equilibrium orbit may be obtained. The winding 17 and the main excitation winding 16 may be combined in a single winding. Specification 677,762 is referred to. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 677,762, and where two betatrons are coupled together on a common core, A.C. counter windings may be used instead of providing air gaps in the core. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1099851-A (GB)
Title: Improvements in or relating to casing hangers and methods of drilling wells which use such hangers
Inventor: MATTHEWS STANLEY EDWARD
IPC: E21B33/043
Filed: 1965-02-02
Abstract: 1,099,851. Wells &c. GRAY TOOL CO. Feb. 2, 1965, No. 4459/65. Heading E1F. A pipe or casing hanger 440 is releasably Locked in a wellhead 410 by a ring 448 carried by the hanger and expansible to engage a groove 450 in the wellhead. The hanger is lowered into the wellhead on a tool 438 screwed into the hanger at a connection 445 and having a slidable part 470 holding the ring retracted. When the hanger is seated in the wellhead the connection 445 is unscrewed to first release the ring to permit it to engage the groove 450, and then to release the tool from the hanger.
Patent GB-1524345-A (GB)
Title: Method of contacting particulate solids
IPC: C10G1/02
Filed: 1977-02-03
Abstract: 1524345 Contacting solids in fluidised bed CHEVRON RESEARCH CO 3 Feb 1977 [26 March 1976] 04550/77 Heading B1F [Also in Division C5] A method of contacting a first and a second particulate solid in a vertical vessel capable of allowing countercurrent flow with only localised back mixing comprises introducing into the top portion of the vessel the first solid and into the bottom portion the second solid and fluidising gas capable of entraining the second solid and capable of fluidising the second solid so that countercurrent flow with only localized back mixing takes place in the vessel, withdrawing the first solid from the bottom portion of the vessel, and withdrawing from the top portion of the vessel fluidising gas and any entrained solid or gaseous product. The process may be the gasifying of coal or retarting shale using sand as the first solid. The vessel may be pushed.
Patent GB-1036651-A (GB)
Title: Improvements in weighing machines
IPC: G01G15/00
Filed: 1964-02-04
Abstract: 1,036,651. Fluid-pressure servomotor systems. T.W.HAMILTON. April 26,1965 [Feb. 4,1964], No. 4701/64. Heading G3P. [Also in Division G1] In a weighing machine, a weighing holder supported by a number of pivotally mounted levers is arranged to bear on a cover 27 of a pneumatic pressure chamber 28 in such a way that when a load supported by the weighing holder is of at least a preselected weight determined by the pressure in the chamber the cover is moved to release the pressure in the chamber and thereby to actuate a spool valve for operating a sorting device or an audible or visual indicator. The cover 27 is urged upwards on to a knife edge seating 36 surrounding the opening of the chamber 28 by air supplied from a source 31 at a pressure suitably adjusted by a regulator 33 and is subjected to a downward force corresponding to the weight of load supported on the weighing holder. In the embodiment shown in, Fig. 1, the weighing machine is a check weigher in which the weighing holder is in the form of an endless conveyer belt 1 mounted by rollers 2, 3 on a beam 4, and fed with articles from a conveyer 5. These articles are supported one by one on the conveyer belt 1 and those which are equal to or above the preselected weight cause the spool valve 38 to be actuated by the pressure drop in the chamber that it operates a sorting device or an audible or visual indicator. In another embodiment (Fig. 2, not shown), the weighing machine is a batch weigher in which the weighing holder is in the form of a hopper 52 fed with material from a container 50. As soon as the hopper 52 has received sufficient material to produce a fall in pressure in the chamber 28 the spool valve is actuated to operate pneumatic rams which close a feed gate 51 and open a hopper gate 53. In both embodiments, a manually or, alternatively ih the check weigher, an automatically operated device comprising a plunger 71 and a solenoid or a fluid-pressure actuated ram is provided to push the cover 27 back on to the knife edge seating 36 after every pressure drop in the chamber 28.
Patent GB-497120-A (GB)
Title: Pocket umbrella frame
IPC: A45B25/16
Filed: 1938-02-16
Abstract: 497,120. Umbrellas. KORTENBACH, A., KORTENBACH, K., and WORRING, F. Feb. 16, 1938, Nos. 4871 and 4872. Convention dates, May 12, 1937 and Sept. 11, 1937. [Class 134] The opening of a telescopic umbrella is facilitated by a helical spring which embraces the runner. Stretchers 10, Fig. 3, are pivoted at one end to sleeves 9 fixed to the outer rib members 6 and, at the other end, to a ring 19 slidable on the runner. Links 17 connect the stretchers 10 to a ring 16 which is fixed on the runner. A spring 20 is mounted between the rings 16, 19. A stop 24 on the runner limits movement of the ring 19, and the runner is adapted to be pushed up to the crown 26 and is held by a spring 23 engaging in a slit in the runner. In another form, the ring 19, Fig. 10, is fixed on the runner, and the spring 20 is partly housed in a sleeve 28, which is slidable on'the runner and is limited by a stop 29. The spring is adapted to push the runner up to the dead centre position, i.e. to the position in which the struts are at right-angles to the stick, and the runner is then moved further by hand. Each link may be pivoted to the mid-point on the stretcher.
Patent GB-367560-A (GB)
Title: Improvements in or relating to apparatus for giving warning of the approach of trains
IPC: B61L1/18
Filed: 1931-02-16
Abstract: 367,560. Track apparatus for signalling the approach of trains. GUIRAUD, E., 7, Rue du Transvaal, La Garenne, Colombes, Seine, France. Feb. 16, 1931, No. 4875. Convention date, Feb. 17, 1930. [Class 105.] The approach of a train is signalled by the sudden variations of current in a circuit com. prising a battery P connected through a transformer primary to the two rails as the front axle A, B of the train passes the rail joints ; the secondary winding of the transformer T is connected to an acoustic or luminous apparatus E which may include an amplifier.
Patent GB-198031-A (GB)
Title: Improved means for use in propelling aeroplane, hydroplane and other conveyances
IPC: B64C11/00
Filed: 1922-02-20
Abstract: 198,031. Leggelo, P. B. van. Feb. 20, 1922. Screw propellers; disc propellers. - Propellers for ships, of the kind wherein rotating vanes form a vacuum on one side of a plate have the vanes arranged in groups and inclined to the direction of rotation with axis parallel to the axes of rotation, such vanes being attached at one end to a plate on the shaft. The plate a, carries sets of blades b the outer ends being stayed by rods d. On the back of the plate small blades e are fixed and disperse air creeping over the edge.
Patent GB-548663-A (GB)
Title: Improvements relating to sharpeners for safety razor blades, and particularly for double-edged blades
IPC: B24D15/10
Filed: 1941-04-15
Abstract: 548,663. Sharpening razor blades. STEERS, H. L. April 15, 1941. No. 4926. [Class 60] Razor blades to be sharpened are supported on the sharpening medium by a support 2 having lugs 3, 4 that enter the holes or slots 9, 10 in the blade. Supported on the lugs by a curved centre part is a rocker member 8 with an upwardly corrugated centre portion and downwardly corrugated side portions 6 and 7 for the thumb and fingers. In the central position the parts 6 and 7 are just clear of the blade and downward pressure is exerted alternately on the parts 6, 7 to rock the blades during the sharpening reciprocations. Lateral movement is prevented by lugs 13 or by depressed portions stamped from the corrugation 8. The support 2 may have lateral skids at each end beyond the lugs 3, 4 and the latter may be formed by pins secured in the body of the part. The support may be replaced by the clamping plate of the razor itself and in this case a central hole is provided on the rocker to accommodate the shank thereof.
Patent GB-1212336-A (GB)
Title: Transmission system for the transmission of information in a prescribed frequency band
IPC: H04B1/7097
Filed: 1969-01-29
Abstract: 1,212,336. Automatic frequency and phase control; pulse signalling; data transmission systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 29 Jan., 1969 [1 Feb., 1968], No. 4952/69. Addition to 1,201,923. Headings H3A, H4L and H4P. In a signal transmission system in which, as in the parent Specification, a periodic pulse pattern non-correlated with a main information signal is transmitted simultaneously with the information and in the same frequency band, and is used at the receiver as an address or synchronizing signal, the periodic pulse pattern is converted to a frequency-modulated signal before it is added to the information signal. In the transmitter the periodic pulse pattern is, as in the parent Specification, generated by a five stage shift register 18-22, which however is driven from clock-pulse generator 26 via a X 2 divider 27. The pattern is fed to linear adder 16 via a frequency-shift modulator 33 comprising two AND gates 35, 36, the pulse pattern being fed directly to gate 35 and via phase-inverter 38 to gate 36. Clock pulses from generator 26 are fed directly to gate 36 and via x 2 multiplier 39 to gate 35. The outputs from the gates 35, 36 are combined in OR circuit 37. The information signal is derived from microphone 1 over pre-emphasis circuit 43 and the combined signals are fed from adder 16 via low-pass filter 3 to a modulator 5 supplied with carrier signal from oscillator 6. In the receiver, the signals are demodulated by means of demodulator 9 having local oscillator 10 and are applied to reproducer 13 over low-pass filter 11, subtraction circuit 41, de-emphasis circuit 42 and muting circuit 14. The output from lowpass filter 11 is also branched into a discriminator 34, the output of which comprises the demodulated pulse pattern. This is applied, via a D.C. blocking capacitor 40 and limiter 32 to modulo - 2 adder 31 the second input of which comprises a locally-generated pulse pattern from generator 15<SP>1</SP> which is similar to the generator 15 at the transmitter. The output of adder 31 is, as in the parent Specification, applied via an integrating circuit 29 to control a variable reactance 30 controlling the phase of the generator 15<SP>1</SP> and also to the muting circuit 14. The pattern generator 15<SP>1</SP> also feeds a frequency-shift modulator 33<SP>1</SP> similar to the modulator 33 at the transmitter and the output of this is applied to the subtraction circuit 41 in such a way as to cancel out the frequencymodulated pulse pattern accompanying the information signal.
Patent GB-127304-A (GB)
Title: Improved Construction of Link for Ammunition Belts for Machine Guns.
Inventor: PRIDEAUX WILLIAM DE COURCY
IPC: F42B39/08
Filed: 1917-04-10
Abstract: 127,304. Prideaux, W. de C. April 10, 1917. Cartridge belts.-Consists in providing the links of metal belts for machine guns with means for engaging one or both edges of the raised track on the bottom of the feed-block of the gun to prevent the belt from being canted when the cartridge is extracted. Fig. 2 shows a link of the kind described in Specification 125,631 provided with projections B on the underside of the base which engage each side of the raised track A on the gun feed-block. Figs. 4 and 7 show links as described in Specification 127,305, in which the cartridges form the hinge-pins, the portions engaging the track A on the gun being in the form of flanges B on the cartridge clips.
Patent GB-971428-A (GB)
Title: Improvements in or relating to the manufacture of helically seam welded tubes
IPC: B21C37/12
Filed: 1961-02-10
Abstract: 971,428. Making helically seamed tubes. HOESCH A.G. Feb. 10, 1961 [Feb. 13, 1960] No. 5081/61. Headings B3A and B3E. A machine for making helically welded tube comprises a triple roller bending device, adjustable guide rollers for guiding the bent strip into a helix of the desired diameter and a welding head located adjacent where the edges of the strip first meet. The strip is fed at angle to a bending device consisting of two lower rollers 16, 17 and an upper roller 15 which is mounted on a cantilever arm 18 of semicircular section. The bent strip is guided by further rollers 32, 42, 52 spaced around the greater part of the periphery of the first coil. All the rollers are adjustably mounted to cater for different thicknesses of strip and diameters of tube. The bending rollers 16, 17 and the guide rollers 32, 42, 52 are mounted on shafts adjustable by threaded devices 7 in slots 5 in upright plates 1 forming part of the machine frame. External rollers 22, 23 and an internal roller located adjacent the welding head 25 guide the welded tube. Rollers may be provided on the arm 18. Specification 867,621 is referred to.
Patent GB-779137-A (GB)
Title: Fluid-pressure relief valve particularly for fuel injection devices
IPC: F02M59/46
Filed: 1953-02-24
Abstract: 779,137. Valves for fuel-injection pumps. KLOCKNER-HUMBOLDT-DEUTZ AKT.- GES. Feb. 24, 1953 '[March 1, 1952; Jan. 17, 1953; Jan. 29, 1953], No. 5173/53. Class 102(1) [Also in Group XXIX] A delivery valve for a fuel injection pump comprises a hollow spring-loaded valve 5 having its interior communicating permanently with a pressure pipe connected to a valve guide 31 or an attachment thereto, in which the inside diameter of the sealing contact face between a flat, plane or conical seating adjacent the end face of the valve stem 1, and a valve seat 39 at the pump end of the guide is equal to or at most 10 per cent less than, the stem diameter. The valve guide 31 is held to the fuel pump casing by a collar 29 screwing into the casing and pressing on a guide flange 30 through a sleeve 32. In modifications the collar acts directly on the flange and fuel flows via a recess in the valve and ports in the guide instead of as shown a recess in the guide and ports into the hollow plunger.