baber/WOPTO huggingface dataset:
Patent GB-247534-A (GB)
Title: Improved apparatus for giving a visual indication of the circulation of a fluid through a pipe
IPC: G01L7/00
Filed: 1926-01-16
Abstract: 247,534. Soc. Anon. des Appareils J. E. Malivert. Feb. 16, 1925, [Convention date]. Pressure - gauges.- Apparatus for indicating whether fluid is circulating at a predetermined pressure in a pipe system comprises a piston actuated by the fluid and acting on the spindle of a visual indicator arranged transversely to the axis of the piston characterized in that this spindle carries a bent rod acted upon by a plunger moved by the piston. A connector 2 is provided with a flange 4 held in the casing 1 by a screwed ring 3. A hole 8 in the connector admits pressude fluid underneath a flexible diaphragm 7 clamped between the flange 4 and a shoulder on the casing. The flange has lugs which engage recesses in the casing to prevent rotation of the flange. Above the diaphragm the casing is recessed and contains a piston 10 pressed down against the diaphragm by a spring plunger 11, the tension of the spring 13 being regulated by the screwed cap 12. The spindle 16 of the indicator 21 has a bearing at one end in the casing, while its other end engages a bearing centre 17. A bent rod is adjustably carried by the spindle, one arm 18 lying parallel with the spindle and extending above the plunger 11, while the other arm 19 passes perpendicularly through the spindle and is engaged by a rod 20 acting as a spring to keep the arm 18 against the plunger. The indicator disc 21 carries coloured sectors located behind a fixed plate 23 having apertures therein. In the position of rest the sectors are obscured by the full parts of the plate, but when fluid is circulating in the pipe system at the required pressure the coloured sectors are visible through the apertures in the plate 23. A removable lid 15 renders the parts accessible for adjustment. Specification 183,795 is referred to.
Patent GB-646776-A (GB)
Title: Radio detection and ranging apparatus
IPC: G01S1/02
Filed: 1946-01-16
Abstract: 646,776. Radiolocation. PHILCO PRODUCTS, Inc., (formerly PHILCO RADIO & TELEVISION CORPORATION). Jan. 16, 1946, No. 1528. Convention date, Jan. 16, 1945. [Class 40 (vii)] Relates to a super-regenerative radar system with a common aerial for transmission and reception. In one embodiment of the invention one train of pulses energizes the super-regenerative oscillator to transmit pulses and another train of slightly different recurrence frequency conditions the oscillator as a sensitive receiver and in another embodiment the oscillator is energized by a single pulse train whose recurrence frequency is varied in a saw-tooth manner. In the first embodiment an oscillator 3 coupled by unit 2 to the common transmitting and receiving aerial 1 is caused to generate high-power pulses for transmission by modulator 4 which is controlled by pulse generator 5 and shaper 7. A second pulse generator 6 and shaper 8 produce pulses of a repetition frequency differing from the repetition frequency of pulses from generator 5 by a small amount, preferably ten pulses per second, and of such an amplitude that the modulator is effective to cause the oscillator to operate as a sensitive regenerative receiver. Received reflected pulses which coincide with the receiver pulses from generator 6 cause the oscillator 3 to produce output pulses of longer duration than those obtaining in the absence of such coincidence and these longer pulses after detection at 9 are fed to the integrating network 10 which converts all the received signals into pulses of varying amplitude and greater duration in dependence upon their length. The longer pulses produced by the coincidence of reflected and receiver-operating pulses are thus converted to larger voltages which are used to produce indications on a slow scanning indicator 13. The indicator may comprise a moving neon tube or mechanical oscilloscope or a conventional cathode-ray oscilloscope, the range sweep of the indicator occurring at the difference frequency (10 c/s.) of the pulses from sources 5 and 6 and being controlled by a sweep initiator 14 which is triggered by coincidence of the pulses from 5 and 6. An automatic regeneration control 11, operated by the average D.C. level of the output from detector 9, may be employed to control the amplitude of the receiver-operating pulses from generator 6 which in turn controls the sensitivity of the oscillator 3; alternatively the output from control circuit 11 may be applied directly to oscillator 3. In a modified system, Fig. 8 (not shown), a single train of modulating pulses is fed to the modulator, the repetition frequency of the pulses being varied in saw-tooth fashion, an indicating pulse of large amplitude being obtained when an echo pulse produced by the reflection of a transmitted pulse generated by one modulating pulse coincides with the succeeding modulating pulse. Specification 582,503 is referred to.
Patent GB-805571-A (GB)
Title: Improvements in or relating to firearms
IPC: F41A3/54
Filed: 1957-01-15
Abstract: 805,571. Small arms. SIFRAG SPEZIALAPPARATEBAU & INGENIEUR-BUREAU FREI A. G. Jan. 15, 1957 [Jan. 16, 1956], No. 1532/57. Class 119 A pistol for firing non-recoil ammunition with a non-rotating breech-block 8, a striker 8d, an extractor and an ejector (Fig. 4, not shown), and a cartridge magazine 26 with spring feed 28 has a triggercontrolled means which retracts the breech-block against a mainspring 11 and is released by other means to permit the breech-block to load and fire a cartridge. A retractor rod 20 is hinged at 21 to a trigger 22 and has projections 20a and 20b which at the "fired" position engage respectively in a longitudinal groove 8e in the underside of the block 8 and in a deeper recess 8f. When the trigger is pulled against the force of a spring 24, the block 8 is pulled back, extracting and ejecting a spent cartridge case (Figs. 3 and 4, not shown). When a projection 20c below the rod 20 rides over a stud 31 on the casing of the weapon it causes the projection 20b to be withdrawn from the deeper recess 8f into the longitudinal groove 8e. This frees the breech-block, which is urged forward by the spring 11 to load and fire a fresh cartridge.
Patent GB-101572-A (GB)
Title: Improvements in Internal Fittings for Boiler Tubes.
Inventor: HENDERSON TURNER
IPC: F22B37/10
Filed: 1916-02-02
Abstract: 101,572. Henderson, T. Feb. 2, 1916. Tubes, smoke.-In fire-clay linings for boiler tubes, of the kind which are provided with external projections to form an annular space between the lining and tube and also with perforations for the passage of gases, the projections and perforations are arranged helically, and the lining is made up of semi-cylindrical sections with fireclay rings between the ends of adjacent sections, such rings being also provided with helical ribs inside and outside if desired. As shown in Figs. 2 and 3, the lining is formed of semi-cylindrical sections a<1>, a<2>, the parting edges of which are slightly thickened as shewn at c and provided with projections d to engage with recesses in rings b, Figs. 4 and 5. The lining is provided with perforations e, some of which are provided with projections f. The rings b are provided with external ribs i and internal flanges k arranged helically. The semicylindrical portions a<1>, a<2> may also have helical ribs on their inner surfaces.
Patent GB-177143-A (GB)
Title: Improvements in automatic maximum and minimum current circuit breakers
IPC: H01H71/24
Filed: 1922-01-18
Abstract: 177,143. Martinetto, V. March 15, 1921, [Convention date]. Automatic circuit-breakers of the kind which are tripped by the variation of torque of a small induction motor in the circuit to be controlled have the tripping mechanism of the induction motor arranged to trip the circuit-breaker both at maximum current and at minimum current. As shown in Figs. 1 and 2 applied to a threephase knife-blade type of circuit-breaker, when the contact-member 3 is closed by hand and held closed for a short time the induction disc 14 drives, through reduction gearing, a shaft 20 on which is fixed a cam 21 and an adjustablyweighted arm 25. The weighted arm is consequently raised until it bears upon a catch 28 controlled by a spring 30 and a dash-pot 32. The rotation of the shaft carries round the cam 21 and releases a catch 22 which, under the action of the spring 38, turns into engagement with the arm 26 on the contact-lever. If the current in the circuit, or in any one of the phases falls below a predetermined minimum, the torque is reduced and the weighted arm falls back, whereupon the cam turns the catch 22 to trip the circuit-breaker. With a predetermined overload, the torque of the disc enables the weighted arm to overcome the spring-controlled catch 28 and, after an interval imposed by the dash-pot 32, the arm passes the dead-centre and falls down, again tripping the circuit-breaker.
Patent GB-430586-A (GB)
Title: Improvements relating to guide arms or stand off insulator brackets, more particularly for use with wireless aerials
IPC: H01B17/24
Filed: 1934-01-17
Abstract: 430,586. Supporting conductors. BATE & CO., Ltd., J., and FISHER, S. N., 184, Brearley Street, Birmingham. Jan. 17, 1934, No. 1636. [Class 36] In a stand-off insulator bracket comprising a rod a having a hooked end c which embraces a reel insulator f, a rubber sleeve e is fitted over the hooked end of the rod to provide a resilient cushion for the insulator. The other end of the rod may be formed with a spike d which is adapted to be driven into a supporting member, the rod being formed with a crank b to provide a striking surface.
Patent GB-196359-A (GB)
Title: Improvements in or connected with apparatus for use in discharging railway vehicles of large capacity
IPC: B65G67/00
Filed: 1922-01-19
Abstract: 196,359. Hamilton, W. L. Jan. 19, 1922. Rotary tipplers; piling material in bulk.-A tippler is operated by power from the locomotive which brings up and withdraws the trucks. The apparatus comprises a structure B, C, D which may be mounted on wheels and advanced or adjusted as tipping proceeds. When a full truck has been run into the tippler D, an endless cable 10 passing round a drum 1 on the, tippler is connected with rods J on the locomotive, or on a buffer truck, and the locomotive is moved back along the structure C and returned so as to tip and return the tippler. The power may be derived from an auxiliary engine on the locomotive, instead of being derived from the movements of the latter.
Patent GB-830397-A (GB)
Title: Improvements in head-bands for mounting electric torches
IPC: F21V21/084
Filed: 1955-01-19
Abstract: 830,397. Forehead lamps. DOBSON, J. D. April 19. 1956 [Jan. 19, 1955; Nov. 2, 1955], Nos. 1661/55 and 31365/55. Class 75(3) An electric torch 5 is supported in a channel in the top surface of a pad 2 and retained on the head by a head band 1 which passes through slots 3 in the pad and over the torch. The undersurface of the pad has a channel diverging towards the front of the head. In an alternative form an elastic ring surrounds the centre of the torch and its ends engage hooks on the ends of a pin passed through the end of the pad. An elastic ring may be pivotally mounted in a clip secured to the end of the pad or a spring clip may be secured thereto. The torch may be rotated with the ring to rest in the channel eneath the pad. The under edge of the pad may be shaped to the contour of the head and may have cut outs for the band. The pad may have a flared circular base with side slots for the band. The pad and band may be made of resilient material such as rubber and the contacting surfaces may be roughened.
Patent GB-997662-A (GB)
Title: Improvements in or relating to inflators
Inventor: BLUEMEL FRANK WILLIAM
IPC: F04B33/00
Filed: 1961-01-16
Abstract: 997,662. Inflators. BLUEMEL BROS. Ltd. Jan. 15, 1962 [Jan. 16, 1961; Feb. 23, 1961], Nos. 1689/61 and 6589/61. Heading F1N. [Also in Division F2] An inflator for cycle tyres comprises a barrel 10 and a plunger rod 11, the rod being formed from a metal strip bent to tubular form, so that the rod has a slit 14 along its length, and the rod has secured thereto a washer 13 having a recess 20 which receives the adjacent end 19 of the rod and has an outer wall extending round that end, the wall being adapted to prevent opening of the slit when the rod is subjected to compressive loading. The washer 13 may be formed of rubber or a resilient synthetic plastic material moulding, e.g. polyvinyl chloride or polythene; it has a peripheral portion 16 for sealing engagement with the interior of the barrel 10 and a web 18 to provide an abutment for engaging the adjacent end 19 of the rod 11, the latter being gripped by the outer wall of the recess 20 thereby effecting the securing of the washer to the rod. Alternatively, Fig. 5 (not shown), the recess 20 may be provided with a spring metal liner which is formed with a slit and has an internally extending flange for engaging the adjacent end 19 of the rod. In another embodiment Fig. 4 (not shown), the washer is formed with a spigot which extends within the bore of the adjacent end of the rod, and with an annular recess for receiving that end. The spigot is formed with a peripheral rib which engages in a corresponding recess in the bore of the rod.
Patent GB-387829-A (GB)
Title: Improvements in flower pots
IPC: B21D31/02
Filed: 1932-01-20
Abstract: 387,829. Pots &c. for growing plants. PAVLECKA, J., 150, Horn, Berkovice, Czecho-Slovakia. Jan. 20, 1932, No. 1755. [Class 6 (ii).] A flower-pot comprises a non-porous, bottomless outer shell 1 of inverted frusto-conical or f rustopyramidal shape, but widening laterally near the bottom to form a base 2 of larger area, and a porous earth and flower container 3 fitting snugly within the shell and held in an elevated position with its bottom 4 in the region of the waist portion 9 of the shell. An overhanging circular rim 6 may be provided on the inner side of the shell at its waist, contacting with bottom 4 and sloping downwards towards the centre so as to collect all dripping water into a vessel 5 beneath it. The base 2 may be provided with ventilation holes or notches 8.
Patent GB-235835-A (GB)
Title: Improvements in liquid dispensing apparatus
IPC: G06M1/28
Filed: 1925-01-20
Abstract: 235,835. Wayne Tank & Pump Co., (Assignees of Baker, L. E.). June 21, 1924, [Convention date]. Zeroizing-mechanism. - The indicating element of a counting mechanism particularly for use with a liquid dispensing apparatus is adapted to be released from the actuating means after the desired quantity of liquid has been delivered to permit the element to return to its initial position under the action of a weight. The mechanism as shown applied to a liquid dispensing apparatus having a pump with a rack-operated piston comprises a shaft f to which is secured a pinion f<14> that gears with a pair of gear wheels n, n<1> loosely mounted on a 'hollow boss n<1> and on the wheel n respectively and connected together by a spring surrounding a pin on one of the wheels and fitting into a hole in the other. The pin extends through a recess in the second wheel and permits slight movement to take up lost motion. A stud n<12> on the wheel n engages the fork n<13> of a one-way ratchet clutch ring n<14> adapted to impart movement to a shaft n' on which is mounted a similar ratchet clutch to prevent the shaft being rotated in the reverse direction. On the latter clutch is mounted a gear wheel n<23> which rotates only when the pump is delivering liquid to advance a wheel n<24> fixed to a hollow drum n<25>. Within the drum is arranged a sleeve n<28> that carries a disc n<29> and is surrounded by a spring tending to force the sleeve and disc to the left in Fig. 2 against a pinion n<33> fixed on the end of the central shaft n<32>. A pinion n34 at the other end of the shaft has a coned hub adapted to engage a corresponding bore on the end of the drum n<25>. The pinions n<33>, n<34> gear with a. corresponding wheel g<12>, and each imparts rotation to a spindle g<11> which carries a pointer g<1> and a pinion g<10> meshing with a sector g<6> formed in an oval-shaped weight member g' at one end g<5>. When the pointers g' are to be returned to the zero position a push pin o, Fig. 4, is pressed in to displace a pin o<2> that is adapted to force inwardly the disc n<29> to disengage the conical clutch to permit the shaft n<32> to rotate freely, whereupon the weights g<4> carry the pointers back to zero until arrested by the stops g'.
Patent GB-111396-A (GB)
Title: Improvements in or connected with Trolley Heads for Electric Traction.
Inventor: PICKERSGILL WALTER
IPC: B60L5/04
Filed: 1917-02-10
Abstract: 111,396. Pickersgill, W., and Pitt, J. H. Feb. 10, 1917. Devices for retaining and replacing collectors.- In a trolly head for electric traction, guide-forks i are mounted on the spindle c of the collecting pulley b and carry toothed segments j adapted to engage fixed racks k whereby, when the blocks d carrying the trolly spindle are depressed against springs f, the forks are moved into their inoperative position. Upon the pulley leaving the overhead conductor, the blocks d move upwards and the forks are moved into the position shown in broken lines. The forks are connected together by a bolt l carrying a roller m. Fig. 4 shows a modified form of fork.
Patent GB-1034142-A (GB)
Title: Servo control mechanism for a valve closure member
Inventor: MAGREZ HENRI
IPC: F15B9/08
Filed: 1965-01-18
Abstract: 1,034,142. Fluid-pressure servometer systems. COMMISSARIAT A. L'ENERGIE ATOMIQUE. Jan. 18, 1965 [Jan.30, 1964], No. 2094/65. Heading G3P. In a control system for a valve of the type comprising a servomotor having a diaphragm 6 connected to the valve closure member 3 and acted upon by fluid supplied by a conduit 8 having a nozzle 10 controlled by a vane 11 carried by a lever 12 pivoted at 13 and acted upon by a control pressure via a bellows 14, the resilient means providing a feed-back link to the lever from the closure member has a spring rate which varies according to the position of the closure member. In Fig. the resilient means comprises a first spring 1 connected at its upper end to the lever and at its lower end to a second spring 2 carried on an arm 19 connected to the spindle 5 at the valve. The resilient means thus has a spring rate dependent upon the position of the valve closure member and consequently the relationship between the pressure supplied at 15 and the closure member position is non-linear. In the alternative arrangement of Fig.3a, (not shown) spring 1 is replaced by a rigid rod, whilst in Fig. 4, (not shown) spring 2 is replaced by two obliquely extending springs. In Fig. 5, (not shown) the centre spring and one of the oblique springs of Fig. 4 are combined and the other oblique spring is replaced by a rigid link.
Patent GB-555117-A (GB)
Title: Improvements in or relating to induction and carburetter systems of internal combustion engines
IPC: F02M23/09
Filed: 1942-02-17
Abstract: 555,117. Extra-air valves. REID, H. C. Feb. 17, 1942, No. 2102/41. [Class 7 (ii)] A valve for admitting extra air to the induction pipe and arranged to operate for medium throttle settings, but to be closed at both extremes of the range of throttle settings or engine load conditions, comprises a ball valve 12 operating between seats 10, 11 in a casing 8 which is attached at 3 to the induction pipe, so that the engine suction tends to draw the valve on to the seat 10 against the force of a spring 14, the air-inlet opening 13 being smaller than the duct 3. The spring may be made a good fit in the casing so that its frictional contact therewith will prevent the ball from oscillating to and fro. Instead of a ball, the valve may comprise two heads on opposite sides of a single seat.
Patent GB-878655-A (GB)
Title: Process for incorporating a synthetic resin in regenerated cellulose fibrous material
IPC: D06M13/137
Filed: 1958-01-22
Abstract: A synthetic resin is incorporated in regenerated cellulose fibrous material by impregnating the material while it is still in the gel state, and before it has ever been dried sufficiently to convert it from the gel state to the non-gel state, with an aqueous liquid having a heat hardenable synthetic resin dissolved or dispersed therein, reducing the liquid content of the impregnated fibre, by squeezing, to less than the normal water imbibition value of the fibre in the gel state, and then drying and curing the impregnated material.  "The water imbibition value" is defined as the percentage by weight of water retained in the saturated fibrous material after centrifuging a 0,5 gram sample for 5 minutes at 1,000G.  The fibrous material may particularly be staple fibre.  A list of resins which may be used includes urea-formaldehyde, melamine-formaldehyde, dicyandiamide-formaldehyde, guanidineformaldehyde, and methylol-amino-epihalohydrin condensation products.  The water imbibition value of the fibres is preferably about 120%-150% (based on the oven-dry weight of the fibre) and the liquid content of the fibre is preferably reduced to about 60%-120%.  The aqueous liquid may contain about 3%-20% of the resin, which is preferably in the monomeric or low polymer state with a molecular weight of the order of 100-1,000, preferably not exceeding about 600.  It may also contain about 2%-20% (based on the weight of the resin) of a catalyst to aid the curing of the resin and 0,1%-4% of the weight of the liquid of a finishing agent.  In an example, a blanket of freshly spun never-dried viscose rayon staple fibre still in the gel state after spinning and having a water imbibition value of 145% is squeezed between pressure rolls to a liquid retention of 100% on the weight of the oven-dried fibres. The blanket is then sprayed with a 9% aqueous solution of a 1 : 1 : 2 : 4, 5-urea-melamine-epichlorohydrinformaldehyde precondensate of the type described in Specification 796,815. The solution also contains 0,75% magnesium chloride hexahydrate catalyst and 0,15% of a polyglycol stearate softening agent. The impregnation is carried out in two steps with an intermediate squeeze and a final heavy squeeze to a final liquid rentention of 100%, the blanket opened, dried at 210 DEG F. and cured at 320 DEG F.  In other examples, viscose rayon staple fibre is similarly impregnated with a mixture of acrolein-formaldehede and urea-formaldehyde condensate, acetone-formaldehyde condensate, and a polyepoxy-polyglycol condensate (Eponite 100), respectively.  The process of the invention improves the subsequent processability of the fibres into yarn and cloth. U.S.A.  Specifications 2,504,835, 2,696,477, 2,711,971 and 2,752,269 also are referred to.