baber/WOPTO huggingface dataset:
Patent GB-194300-A (GB)
Title: Improvements in rotary watering sprays
IPC: B05B3/04
Filed: 1923-03-01
Abstract: 194,300. Vaux, E., (Assignee of David, H.). March 1, 1922, [Convention date]. Rotary apparatus.-A rotary spray-producer comprises two perforated wings, 8, 8<1> mounted back to back on a socket or tube to rotate under the action of the water, each wing being formed of a plate having approximately an elliptical form and being curved along its length to form a portion of a cylinder the edges of each wing being bent at certain points and the wings being more or less inclined according to the character of the spray required. The wings 8, 8' are provided with tongue pieces 11 by which they are either permanently or detachably connected to a ridge 9 of a rotary socket 7 which is mounted on ball bearings on the nozzle 6 and held in position by a socket cap 7<1>. The wings are perforated as at 13 except in the part against which water from the nozzle 6 impinges. The spray producer is mounted on a vertical tube provided with a pipe at its lower end for engaging the ground.
Patent GB-492245-A (GB)
Title: Improved gear-change mechanism for motor vehicles
IPC: B60K20/04
Filed: 1938-02-25
Abstract: 492,245. Controlling change-speed gearing on motor vehicles ; hinges. GENERAL MOTORS CORPORATION. Feb. 25, 1938, No. 5984. Convention date, March 3, 1937. [Class 79 (v)] [Also in Groups XXIV and XXV] The change-speed gear lever 1 of a motor vehicle forms one side of an upstanding parallel linkage, a parallel rod 3 resiliently mounted on a transverse axis 18 forms another side, and an inverted channel bar 2 having a hand lever extension is pivotally connected to the upper ends of lever 1 and rod 3. The arrangement provides a clear floor space in the driving compartment, and a minimum of change in elevation of the hand lever when effecting gear changes. Gear lever 1 is supported by a universal mounting 13 in a hollow boss 12 on the gear box 10, and operates a locking plate 39 and shifter bar 40 by means of ball joints 34 and 33. Universal mounting 13 comprises a longitudinal pivot-pin 32 for the gear lever carried by a shell 21 which is pivotally supported in the boss 12 for rotation about a transverse axis by means of spring-pressed caps 22 seating in lateral apertures in the shell and boss.
Patent GB-1523565-A (GB)
Title: Locking head
IPC: B25B5/12
Filed: 1977-02-14
Abstract: 1523565 Clamps POLYMATIC SA 14 Feb 1977 [13 Feb 1976] 06020/77 Heading E2A A rotating fastener in the form of a hook 6 is secured to shaft 7 rotated by piston rod 4 through toggle linkage which assumes the upper (solid line) posture in the fastening position shown. In this position, a roller at the end of the piston rod and running on guide rail 15, takes up any reverse force on the fastener 6 to prevent unwanted release.
Patent GB-924488-A (GB)
Title: Animal trap
IPC: A01M23/16
Filed: 1961-02-20
Abstract: 924,488. Animal traps. H. J. WHIFFEN. Feb. 19, 1962 [Feb. 20, 1961], No. 6097/61. Class 5(1). A bullfinch trap comprises cages 20, 21 in each of which is pivoted a perch 1 carrying a bracket 9 having an aperture 13 in which engages a wire stay 15 connected with a flap door 14. A further cage 22 for a decoy bird is provided. A bird alighting on the perch at 4 pivots the perch downwardly against the action of a spring 6 so that the stay 15 is disengaged from the bracket 9 thereby allowing the flap 14 to pivot downwardly to close the trap entrance. The door 14 may be formed in two parts, one part closing the cage entrance and the other closing an opening in the cage wall leading into the further cage 22.
Patent GB-372008-A (GB)
Title: Improvements in two stroke cycle engines
IPC: F02B25/00
Filed: 1931-02-26
Abstract: 372,008. Two-stroke engines. LœCK, A., 20, Ostkaistrasse, Hildesheim, Germany. Feb. 26, 1931, No. 6115. [Classes 7 (ii) and 7 (vi).] In engines wherein a pump a is placed by the side of the power cylinder b both pistons compressing a scavenging charge in the crank case, the pump piston g is driven off the main crank pin P4 through a link k, rocking lever i and connecting rod st. This driving gear is arranged so that both the pistons arrive at the ends of their downstrokes together to give maximum compression effect in the crank case ; the pump piston moves in advance of the power piston on its upstroke to deliver a charge to the power cylinder and allow the usual advance of ignition. There is some dwell in the movement of the pump piston at the top of its stroke. Air is admitted to the crank case by two admission ports o, w but mixture may be used in the crank case. For an oil engine air may be supplied by the upper side of the pump but as shown mixture is admitted from a carburetter first through the valve x, Fig. 2, and then through the terminal port p. The front side of the pump cylinder may be closed to form a separate pumping chamber for scavenging air. Valves.-The combined inlet and delivery valve for the pump consists of two coaxial beat valves l, x, the outer valve l acting as the delivery valve from the pump.
Patent GB-936436-A (GB)
Title: Improvements in light cupolas
IPC: E04D13/03
Filed: 1962-02-16
Abstract: 936,436. Skylights etc.; ventilators. DEUTSCHE TAFELGLAS A.G. TETAG. Feb. 16, 1962 [Feb. 25, 1961], No. 6164/62. Classes 20 (3) and 137. A light cupola 2 is mounted in spaced relationship by spacers 4 on a ring mounting 3 and a resilient closure strip 1, Fig. 4 having grooves or notches formed by a corrugated or serrated surface on at least one side, is mounted to close the space between the cupola and mounting and so as to provide ventilating ducts between it and the mounting to the space under the cupola. The strip 1 has a channel-shaped duct 8 by which the strip is mounted along the edge of the cupola. The strip 1 may be of L-shape and may be with an upper flange depending upon the cupola having a depending or horizontal flange. In another embodiment the closure strip takes the form of a flexible annular ring 13 fixedly mounted on the internal periphery to the ring mounting 3 and bearing with its corrugated or serrated external periphery on the cupola flange 7 so that on increased external pressure the ventilation ducts 14 are decreased and on increased internal pressure the ducts are increased. An insulation covering may be interposed between the mounting 3 of the strip 1.
Patent GB-854919-A (GB)
Title: A process for the production of boron hydrocarbons and aluminium hydrocarbons
IPC: C07F5/02
Filed: 1957-02-25
Abstract: Aluminium compounds of the general formula (R1)2 Al H in which R1 is a hydrocarbon radical and boron compounds of the general formula (BRH2)n. (BR2H)m in which R represents a hydrocarbon radical, n is 0, 1 or 2, m is 0, 1 or 2 and the total of n and m is 1 or 2, are produced by heating an aluminium compound of the formula Al R13 or a boron compound of the formula BR3 with hydrogen under pressure at a temperature of from 120 DEG  to 200 DEG C.  The reaction may be effected in the presence of an inert solvent, for example a saturated aliphatic or aromatic hydrocarbon, and with boron compounds, ethers can used.  The starting materials used in examples are boron triethyl, boron tri-n-propyl, boron tri-isobutyl, boron tricyclohexyl, boron triphenyl, aluminium triethyl, aluminium trimethyl, aluminium tri-n-hexyl and aluminium tridodecyl.ALSO:Diborane is produced by heating a boron compound of the formula BR3, where R represents a hydrocarbon radical, with hydrogen under pressure at a temperature between 140 and 160 DEG C. for such a time, and with such an amount of hydrogen, that all the alkyl radicals attached to the boron are completely dehydrogenated. In examples, diborane is obtained by heating boron tri-n-butyl or boron-tri-isobutyl for 12 hours at a temperature between 145 and 150 DEG C. with 260 atm. of hydrogen.
Patent GB-642007-A (GB)
Title: Improvements relating to wire furniture springs
IPC: A47C27/06
Filed: 1948-02-28
Abstract: 642,007. Wire springs. HARRIS LEBUS, Ltd. Feb. 28, 1948, No. 6266. Convention date,. March 27, 1946. [Class 108(iii)] [Also in Group XIV] Seat springs of sinuous wire have parallel limbs 6, 7 lying in the upper and lower faces of the cushion assembly and joined by a V-shaped part with convexly bent or curved limbs 11, 12.
Patent GB-630092-A (GB)
Title: Improvements in or relating to positional control systems
IPC: F15B9/12
Filed: 1943-07-15
Abstract: 630,092. Fluid-pressure servomotor-control systems. SPERRY GYROSCOPE CO., Inc. July 15, 1943, No. 6458/47. Convention date, Dec. 27, 1941. Divided out of 630,064. Drawings to Specification. [Class 135] [Also in Group XXXVIII] In a positional control system, the power supply to a motor is so controlled that the speed of the motor tends to increase continuously in response to a steady value of a control quantity that includes a component substantially proportional to the deviation of the displacement of the motor from that ordered by independently variable control means and a degeneratively applied decaying component accompanying and dependent upon any change of speed of the motor. The invention is described with reference to the system and apparatus disclosed in Specification 630,064. Specification 595,176 also is referred to.
Patent GB-119995-A (GB)
Title: Improvements in Invalid Beds.
Inventor: DODDS THOMAS
IPC: A61G7/015
Filed: 1918-04-16
Abstract: 119,995. Dodds, T. April 16, 1918. Bed-rests.-In a bed-rest of the kind adjustable by means of a rack 11 engaged by toothed wheels 13 mounted on a crank-operated shaft 14, the rest is retained in position by a spring-controlled pawl 17 engaging a toothed wheel 20 on the shaft 14 and released therefrom by a crank 22 on a shaft 21 operated by a crank-handle 25. A U-shaped bail 23 mounted on the crank 22 encircles the pawl.
Patent GB-660243-A (GB)
Title: Improvements in and relating to pre-stressed reinforced concrete structural members of composite form
IPC: E04C3/22
Filed: 1949-03-10
Abstract: 660,243. Beams and like structural elements. BJUGGREN, U., and CONCRETE DEVELOPMENT CO., Ltd. June 7, 1950 [March 10, 19491, No. 6529/49. Class 20(iv) In beams or the like of composite form comprising a series of contiguous brick or like elements 1 constituting a bottom part on which concrete 4 containing prestressed reinforcing wires 3 is cast, the elements 1 are provided with transverse members 2 to engage or key with the reinforced concrete and thereby increase the adhesion between the brick and concrete parts. The wires may pass through slots in the member 2.
Patent GB-1222338-A (GB)
Title: Tool for use in a hammer drill's tool holder
IPC: B25D17/08
Filed: 1969-02-06
Abstract: 1,222,338. Tool-bits. HILTI A.G. 6 Feb., 1969 [10 April, 1968], No. 6588/69. Heading B4C. A tool 1 is held in a hammer drill's toolholder by locking cylinder(s) (not shown) engaging in closed-ended slats 9 of arcuate section in the tool's shank 4. These slats have optimum dimensions, i.e. a radius of 25-35% of the shanks diameter, a depth of 12-20% of the shanks diameter and a length 10-15% longer than the length of the locking cylinders. Wider ranges are given in the Specification. Specification 1,194,103 is referred to.
Patent GB-938947-A (GB)
Title: Two-column portal-type machine tool with one or more tool posts horizonally slidablealong a cross member
IPC: B23Q11/00
Filed: 1962-02-21
Abstract: 938,947. Machine tool details. SCHIESS A.G. Feb. 21, 1962 [Feb. 24, 1961; Sept. 29, 1961], No. 6652/62. Class 83 (3). A two column machine tool with one or more tool posts horizontally slidable on a vertically adjustable cross-slide comprises a measuring device fitted on the cross - slide between the columns for determining the cross-slide curvature, and a vertically operating tensioning device attached to the cross-slide adjacent the measuring device which is capable of lifting the crossslide by the amount of curvature. In a vertical lathe, Fig. 1, columns 3, 3, are connected by a bar 4, cross-slide 5 is vertically movable on the columns, and tool posts 6 are horizontally movable on slide 5. A straight edge 9 is supported at 10, 10 on the crossslide and carries a measuring device 15 which registers the curvature " a"  of crossslide 5. Tensioning device 14 consists of a cable wound round a drum 25 which is motorized, the drum being fixed to a lifting head 26 which is vertically slidable on bar 4. Device 15 may be of the mechanical, magnetic, electrical, hydraulic or optical type, and may form part of an adjuster mechanism (not shown) which automatically converts the curvature measurement into a displacement of head 26. The measuring device, Fig. 2, is an electronic spirit level which measures the angle of curvature a and with the aid of a regulator, lifts head 26 to bring the angle to zero. In the vertical lathe, Fig. 3-6, straight edge 9 is supported on cross-slide 5 at 10, 10 and an auxiliary member 13 is supported by the slide and is linked to the latter by a tensioning device 14<SP>1</SP>. A measuring device 1511 consisting of a high sensitivity feeler such as a measuring clock with electrical contacts connected to a drive motor 22, is fitted to slide 5. Tensioning device 14<SP>1</SP> comprises a rod 23 pivoted to slide 5 at 24<SP>1</SP> and connected to an eccentric 18 of a gear-driven worm-wheel 19. As slide 5 bends due to movement of tool posts 6, clock 1511 measures the curvature and motor 22 is rotated to drive eccentric 18 thus lifting slide 5 by rod 23. It is stated that the tensioning device may consist of bolts or flat or ring wedges, and motor 22 may be replaced by electromagnetic clutches.
Patent GB-591966-A (GB)
Title: Electric heater producing a jet of hot air or other gas
IPC: B29B13/00
Filed: 1945-03-16
Abstract: 591,966. Electric gas heaters. BRITISH THOMSON-HOUSTON CO., Ltd., COCKE, K. J. R., HARTLEY, A. W. E., and MARTIN, R. I. March 16, 1945, No. 6668. [Class 39 (iii)] An air heater producing a jet of hot air or nitrogen for joining edges of thermoplastic material comprises an elongated tubular housing 1 through one end of which is introduced a tubular casing 8 carrying a nozzle 3 and spaced within the housing and containing an electric resistance heater 9, a handle 6 on one side of the housing, so that air introduced under pressure into the handle enters the annular space 7 and passes over the heater to the nozzle. The resistance wires 9 are supported in apertures 17 in fireclay members 16 having a central bore 18 into which projects an extended portion 19 of a cruciform member with notched ends 20 supporting the inner casing 8 centrally against a shoulder 11 on a disc 10 within the housing. The casing 8 carries a nozzle 3 thermally insulated by glass wool from the nozzle 2 and is removably endwise as a unit on removal of an end cap 4 on the housing. A removable hollow insulating handle 6 holds against, a side projection 28 on the housing a disc 25 carrying an air inlet pipe 23 and supply leads 24, 27 the latter being connected to the heater through terminals 22 on the notched members 20.
Patent GB-637621-A (GB)
Title: Improvements in method and apparatus for building tires
IPC: B29D30/24
Filed: 1948-03-03
Abstract: - 637,621. Pneumatic tyres. ARNOLD, J. C. (National-Standard Co.). March 3, 1948, No. 6720. [Class 144 (i)] Apparatus for use in the manufacture of tyre covers by the flat-band process comprises a main building - drum 4 mounted between auxiliary drums 6, 10 axially displaceable with respect to the main drum, the drum 10 being normally of lesser diameter than the drums 4, 6 but adaptable to increased diameter. As shown, the drum 10 is fitted with an inflatable. air-bag 11 on which (whilst collapsed) the tyre-casing plies 19 are laid. A hollow cylinder 14 is then moved into the position shown in Fig. 4, and the bag 11 inflated to force the band 19 into adhesive contact with the inner periphery of the cylinder 14. The latter is then moved into the position shown in Fig. 6 where it completely overlies the drums 4, 6 with the trailing edge of the band 19 folded under a narrow drum 17 of the same diameter as the drum 4. The drum 10 is then retracted (Fig. 7) leaving the band 19 on the drum 4 and the auxiliary drums 6, 17. Finally, the latter are moved clear of the main drum (Fig. 8) leaving edge flaps 20, 21 of the band 19 in position to receive the bead elements. As shown in Fig. 10, the rigid cylinder 14 may be replaced by a series of endless webs 50 traversing rollers 51, 52 on a framework comprising channelled racks 53 ... 56 driven by pinions 57 ... 60 and bevel gears 49 from a motor 48.
Patent GB-383139-A (GB)
Title: Improvements in guards for hand flaying knives
IPC: A22B5/16
Filed: 1932-03-07
Abstract: 383,139. Flaying knives. KN€BEL, 0., Wallern, Czecho-Slovakia. March 7, 1932, No. 6832. [Class 30.] An ordinary hand flaying knife has a guard formed by two plates C conforming to the shape of the blade A and clamped by the U-shaped clamp F. Pins D on one of the plates pass through holes E in the other. The position of the guard is adjusted so that only a small depth of the cutting edge is exposed.
Patent GB-745832-A (GB)
Title: Stabilised deflection-amplifier system for a television receiver
IPC: H04N3/223
Filed: 1953-03-12
Abstract: 745,832. Saw-tooth generating circuits. PHILCO CORPORATION. March 12, 1953 [March 15, 1952], No. 6833/53. Class 40 (6). In a deflection amplifier, particularly for the line time-base of a television receiver, with a boosted H.T. supply, a variable impedance is arranged between the H.T. supply and an accelerating grid of the amplifying valve and is controlled in accordance with both the H.T. and boosted H.T. supply. The screen-grid of the line time-base amplifying valve 12 is fed through a series valve 22 directly connected to the anode of control valve 21 having a gas valve 23 in the cathode lead. A connection is made from the boosted B+ H.T. supply to the anode load 25 of valve 21, the grid being fed from a tap on resistor 25. The point a varies with the boosted B + supply while point b tends to vary in opposite sense to variations in the B + supply since a fraction is tapped off over resistors 30, 33 and applied to the grid of valve 21. A setting of the potentiometer 25 can be found to provide compensation with varying supply voltage and also boosted B+ supply as may occur with varying beam current. Upon varying the brightness control 30, the bias on valve 21 is varied to change the standing current in valves 22,12.
Patent GB-1185582-A (GB)
Title: Safety Harness Device
Inventor: WRIGHT WILLIAM SORELLE JR
IPC: B60R22/38
Filed: 1968-02-13
Abstract: 1,185,582. Safety harness. PACIFIC SCIENTIFIC CO. 13 Feb., 1968 [8 March, 1967], No. 6932/68. Heading A3V. An inertia reel device for a vehicle safety harness comprises a frame 1 containing a transversely mounted spindle 7 having a spool 6 fixed thereon and rotatable therewith, a strap being wound on the spool, a spring 14 mounted on the spindle to rewin the strap after use, a clutch member 25 surrounding one end of the spindle at which is a flange 22 carried by the spindle turnably therewith, the clutch and flange each having opposed tapered sockets 23 carrying balls 24. An inertia member has a rim 28 surrounding the clutch member and a hub 27 joined thereto by a web 29 which passes between the clutch and flange and has apertures surrounding said balls, said hub being turnably mounted on said spindle. A calibrating spring 26 carried by the hub urges the clutch member towards the flange to retain the balls in the deep portions of the sockets. Friction means, preferably in the form of teeth 32, are provided on a frame member 19 opposite the clutch member and the arrangement is such that the inertia member, acting upon acceleration of the strap off the spool above a rate determined by the force of said calibrating spring, acts to effect rolling of the balls within said tapered sockets and cause the clutch member, which preferably carries teeth 31, to engage with the friction means, thereby limiting unwinding movement of the strap. The mechanism is preferably external of the frame 1 the spool preferably having friction means 37 for engagement with the frame member 19 which may have a friction surface, against the action of a cup spring 33, when the clutch member is operated under an excessive pull on the strap.
Patent GB-140590-A (GB)
Title: Improvements in or relating to gas fires
IPC: F23D14/04
Filed: 1919-03-20
Abstract: 140,590. Snell, C. Scott-, and Anderson, D. March 20, 1919. Gas fires.-The body of the burner is separate from the gas nipple A, so that the burner and the frame F, G containing the radiants may be removed in one piece from the stove, and thus afford access to the reflectors D and other parts in order to facilitate the cleaning of them. The burner consists of a body with a flat top H, extensions of which are apertured to slip over studs M, and thus bring the burner body into the proper position relative to the nipple A. The mixing-chamber of The burner is fitted with an arched baffle J and an arched perforated screen I, which rest on ledges and are withdrawable after removing the plug K. Feet L are provided to support the burner &c. when removed from the stove. Specification 102,626 is referred to.
Patent GB-129964-A (GB)
Title: Improvements in or relating to Driving Bands for Projectiles.
Inventor: JEZLER HUBERT
IPC: F42B14/02
Filed: 1919-03-20
Abstract: 129,964. Jezler, H. July 13, 1918, [Convention date]. Cased forms; hoops; projectiles. - Driving bands for projectiles are made of a flat tube 1, Fig. 4, or a similarly shaped strip of sheet iron 1, Figs. 1 and 3, filled with aluminium, lead, zinc, calcium, or sodium alloy or with pure aluminium or zinc. The adjacent edges of the sheet iron may be welded or soldered together, and a reinforcing band 2, Fig. 1, may be inserted between the core and the edges of the sheet iron- Or, the edges of the sheet iron may be separated by a roughened part projecting from the bottom 8, Fig. 3, of the groove in the projectile 5. The undercut edges 7 of the groove are turned up, as shown in Fig. 6, to permit the insertion of the band, and are then turned down by rolling, stamping, pressing or forcing to fasten the band in place. A roller may be used to turn the edges up and simultaneously to roughen the 'bottom of. the groove. The Specification as open to inspection under Sect. 91 (3) (a) mentions the use of alloys of lead with calcium and of lead with sodium, and the use of non-metallic materials for the filling of the band, and describes also apparatus, Fig. 12 (Cancelled), for rolling the band around the projectile and securing by pressing over the edges of the groove. The projectile 10<x> is rotated about its axis between rollers 14, 15. Hydraulic pressure is applied to the roller 14 to force it against the projectile by means of a piston 17 working in a cylinder 16 to which fluid under pressure is admitted, the piston being connected by a rod 18 to a slide 19 carrying the roller. Instead of a single roller for pressing in the edges of the groove, two obliquely arranged rollers 20, 21 may be used as shown in Fig. 13 (Cancelled). The exact diameter of the band may be obtained by a subsequent rolling of its outer surface. For projectiles of large calibre, instead of rolling a composite bar around the projectile, a metal ring having a protective metal envelope may be pressed on to the body of the projectile and then secured by a locking device. The protective envelope may be coated with a non-rusting metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1286038-A (GB)
Title: Carbon purification process
IPC: C01B31/08
Filed: 1970-02-13
Abstract: 1286038 Purifying carbon STANDARD OIL CO 13 Feb 1970 7033/70 Heading C1A Carbon containing impurities, including ash and combined silicon is purified by immersing the carbon in concentrated aqueous hydrofluoric acid leaving it to soak therein for several hours, transferring the carbon to aqueous hydrochloric acid and boiling the acid, rinsing the carbon with boiling distilled water and drying the carbon. If the carbon also contains graphitoidal silicon impurities, the aqueous hydrofluoric acid should be used in admixture with concentrated nitric acid. The purified carbon may be used to form a plurality of carbon electrodes in a demineralization cell.