baber/WOPTO huggingface dataset:
Patent GB-239332-A (GB)
Title: Improvements in two-wheel trailer carriages for timber and other material
IPC: B62D21/20
Filed: 1924-07-28
Abstract: 239,332. Wickham & Norris, Ltd., and Ackerman, W. G. July 28, 1924. Couplings for tracfors. - Relates to a twowheel trailer vehicle for timber adapted for mechanical traction and provided with a longitudinally adjustable draw bar. As shown in Figs. 1 and 2, the trailer frame comprises side-members a and transverse members b, b<1> and the draw-bar f, provided at its front end with a spring attachment f<1>, f<2> for connection to a tractor, is adjustably mounted in a guide formed by distance pieces arranged between the transverse member b and a lower transverse member j, the bar being provided with holes m for engagement by a locking pin n. The bar also passes through guides k fitted with anti-friction rollers l and carried beneath the transverse members b<1>. In the modification shown in Fig. 5, the draw-bar f is adjustably mounted in a guide f<0> on the axle c and the front ends of the side-members a of the frame are provided with longitudinally-adjustable downwardly-projecting metal extensions t carrying a shoe. w embracing the bar f which is supported therein by a pin w<1>. The extensions t, which are. connected by a transverse member b<2>, slide in guides t' on the side-members a, and are secured in the adjusted position by a rod u<1> passed through the side-bars and through holes u in the extensions, the holes u being spaced apart the same distance as the holes m in the drawbar f.
Patent GB-1484542-A (GB)
Title: Electric circuit boards
IPC: H01H11/04
Filed: 1976-05-04
Abstract: 1484542 Cleaning and activating circuit boards for soldering SIEMENS A G 4 May 1976 [11 July 1975] 18120/76 Heading C7U [Also in Division B3] The solderability of electric circuit boards with Cu or Cu alloy conductor paths is improved by cleaning the boards in an aqueous solution containing a non ionic surfactant and an organic acid and then activating in an aqueous solution containing potassium peroxy disulphate (persulphate) and an acid. The preferred cleaning solution contains 20-100g/l of an hydroxyethylated alkyl phenol and 15-80g/l of an organic acid such as formic acid. The activating solution is preferably saturated with the potassium peroxydisulphate the pH adjusted to 2-4 with H 2 SO 4  and stabilized with phosphoric acid. The boards may be rinsed with water between treatments and also retreated in the cleaning solution after treating in the activating solution. Colophony or soldering lacquers may then be  applied and dried.
Patent GB-403669-A (GB)
Title: Improvements in or relating to vehicle wind screens
IPC: E05C17/16
Filed: 1932-06-27
Abstract: 403,669. Stays. OTTINO, G. P., 18, Lonsdale Road, Kilburn, London, June 27, 1932, Nos. 18146 and 25692. [Class 65 (i).] A stay for a vehicle windscreen comprises a rack pivoted to the screen (or frame), and a spring-controlled pawl, pivoted on the frame (or screen), which normally slides over the teeth of the rack against the pressure of the spring, means being provided to lock the pawl in engagement with any tooth of the rack In the construction shown in Figs. 1 and 4, a slotted bar c is pivoted slightly off its centre line to the windscreen f and has rack teeth a cut in one side of the slot. The bar c slides in a guide h pivoted at o on the windscreen frame g, and this guide carries a pivoted pawl p with a laterally projecting tooth r for engagement with the rack ; the pawl is pressed against the rack by a spring s and may be locked in the engaging position by a cam lever u, also pivoted on the guide h. The first notch a<1> of the rack is deeper than the remainder, so that the tooth r of the pawl does not engage the bottom of it under spring pressure, but the locking lever u forces the tooth r further down the notch a<1> so as to draw the screen tightly closed and hold it so, this action being aided by the eccentric pivoting of the bar c. Those faces of the teeth which the pawl engages to resist closing movement of the screen are made steeper than the others so as to give equal resistance to hand pressure in both directions allowing for the effect of the weight of the screen. In a modification, Fig. 6, the rack is formed in the upper side of the slot in the bar c, and the spring s is placed between the cam lever u and the pawl p. According to the first Provisional Specification, anti-friction devices may be provided for the sliding stay-bar. According to the second Provisional Specification, the locking lever may have a third position in which the pawl is held clear of the rack, and a spring may be provided to press the lever towards this position ; the rack may be straight instead of arcuate, and may be pivoted instead of fixed to the windscreen.
Patent GB-1246218-A (GB)
Title: Improvements in or relating to data transmission systems
Inventor: PARKER BERNHARD DOLLMAN
IPC: H04L1/06
Filed: 1969-04-09
Abstract: 1,246,218. Digital transmission systems. DECCA Ltd. 8 April. 1970 [9 April, 1969], No. 18183/69. Heading H4P. A system having four transmission channels and means for feeding successive digits so that odd digits are fed into one of one pair of channels depending on whether the digit is a " 0 " or " 1 " and even digits are fed into one of the other pair of channels similarly, an interblock indicator signal is interposed between successive characters on one of the two channels not used for the last bit of the preceding block nor the next succeeding block. Preferably the blocks have a constant and even number of digits and if the latter,transmission of each character will be preceded by an indicator in turn on opposite pairs hence as two different indicators are employed identifying and checking alternate blocks is facilitated. With an odd number of bits in each block, the interblock indicating signal after the one block may be figures 1, 0 and after the next 0, 1. The first character need not be prefixed with an indicator and an interblock signal may be produced at the end of one character and another at the beginning of the next. In the transmitter characters of say 8 bits from a source 10 such as a teleprinter are accepted by a register 26 and converted to serial form via gates 32-39 controlled by a clock and pulse generator 27-31 started by a signal on line 40. The serial bits are applied alternately to pairs of lines 21, 23 and 22, 24 to control transmission by, for example, radio by modulating four sub-carriers. At the receiver information on the - four carriers appears on pairs of lines 111, 113 and 110, 112 connected to a first detector 117 detecting an interblock indicator representing the  start of an odd character and the end of an even  character on which sets register 115 to zero, and a second detector 120 operating oppositely which sets a register 116, the registers being switched alternately in the manner described in Specification 892,272. Circuits 123, 129 check the registers for completeness. The circuitry is described in greater detail in connection with Figs. 3A and 3B (not shown).
Patent GB-561163-A (GB)
Title: Improvements relating to boring bars
IPC: B23B29/034
Filed: 1942-12-22
Abstract: 561,163. Boring-bars &c. PERKINS, J. M., and ALEXANDER MACHINERY, Ltd., G. H. Dec. 22, 1942, Nos. 18196/42 and 8508/43. [Class 83 (iii)] In a boring-bar having steadies for engaging the work immediately behind the cutting-edge, the bar a, Figs. 1 and 2, is provided with a diametrical slot b having a cutter c at one end and a non-cutting steady e at the other end, and a transverse slot h accommodates a second steady i. The cutter and steadies are secured in the adjusted positions by screws d, g, and the steadies may be adjusted by screws k which abut on the.cutter. The steadies are preferably made from or tipped with hard metal such as tungsten carbide, or may carry rollers. An axial passage m in the bar supplies coolant through a lateral passage n. In a modification a diametrical slot carries a cutter and steady as in Fig. 2, and the transverse slot h<1>, Fig. 3, passes completely through the bar, having a steady i<1> at one end and another steady or a dummy s<1> at the other end. The cutter and steadies in this modification are adjusted by screws k<1> passing through them and abutting on a central stud o<1>, locking being effected by nuts q<1> shaped to engage bevelled surfaces in the cutter and steadies. Locking in the adjusted position is effected by a nut l<1> on the stud and a washer p<1>, and coolant is supplied from the central passage m<1> by lateral passages t<1> in the steady or dummy s<1>. The slot h<1> may be perpendicular to the cutter slot or may be at such an angle that the cutting-edge lies in or near a diametrical plane perpendicular to the other slot. A drill may be mounted in the end of the bar to form the initial bore, and the bar may carry more than one cutter, and may be fluted for escape of swarf.
Patent GB-917211-A (GB)
Title: Improvements in or relating to cigarettes
IPC: A24D3/04
Filed: 1958-06-06
Abstract: 917,211. Cigarettes. ROWLANDS, T., and MOLINS MACHINE CO. Ltd. June 5, 1959 [June 6, 1958], No. 18245/58. Class 130. A cigarette is provided with one or more air apertures 3, Fig. 3, covered, or rendered inconspicuous, by a permanently fixed band 8 which enables air to be drawn through the apertures while smoking. The band is secured to the cigarette at all points except for the region of the aperture 3, whereby air is drawn into the aperture beneath the unsecured portion of the band. In a filter mouthpiece cigarette the band also serves to connect the filter plug 6 to the cigarette. In Fig. 2 the aperture is a fine slit 5 right at the edge of the band so that the band renders it inconspicuous. Specification 706,624 is referred to.
Patent GB-1221808-A (GB)
Title: Folding trailer
Inventor: JONES KENNETH
IPC: B60P3/34
Filed: 1968-04-18
Abstract: 1,221,808. Collapsible vehicles. K. JONES. 18 April, 1968, No. 18257/68. Heading B7B. A trailer has a central backbone 1 to which the end walls 4, 5 are centrally pivoted side walls 8 being pivotally connected to the ends of the walls 4, 5. The trailer is collapsed by removing a floorboard and moving the side walls 8 in opposite directions, the wheels 11 being secured to the side walls 8 maintaining their fore-and-aft orientation.
Patent GB-1179426-A (GB)
Title: Improvements in or relating to Air Pressure Operated Gear Changing Systems
Inventor: PAGE WILBUR MILLS
IPC: F16H59/04
Filed: 1967-04-20
Abstract: 1,179,426. Change-speed control. CLAYTON DEWANDRE CO. Ltd. 16 April, 1968 [20 April, 1967], No. 18278/67. Heading F2D. A vehicle change-speed gear control comprises a shift-lever 10 mounted on a pin 11 in an inverted trunnion 12 and movable along a gate 9 to pivot the trunnion 12 about pins 13, 14 so that cams 21, 22 on the trunnion co-operate with pistons 15, 16 through rollers 19 to open valves 25, 26 to direct compressed air to a gear selector motor (50), Fig. 5 (not shown), the lever 10 being also pivotable about the pin 11 to move across the gate 9 to rock a hollow shaft 35 carrying arms 64 co-operating with pistons (65), Fig. 4 (not shown), to open valves (66) to direct compressed air to a gear shift motor (70), Fig. 6 (not shown), such rocking of the shaft 35 being prevented by pistons (41), (42), Fig. 3 (not shown), co-operating with lugs (38), (39), on the shaft (35) until the compressed air operated main clutch is disengaged, when the pistons are withdrawn. As shown, the control is for an eight forward speed and reverse gear, and a third piston 17 is controlled by a cam 23 to open a valve 27 to direct compressed air to a dual-range cylinder (not further described), to obtain the top four ratios. A fourth spring loaded piston 18 co-operating with cam 24 provides a delay between selection of fourth and fifth gears. A collar 77 or lever 10 must be raised to avoid a baulk on the gate 9 to obtain reverse. A further pair of arms (67), Fig. 4 (not shown), on shaft 35 co-operate with a pair of pistons (68) loaded upwards against the arms by springs and by air pressure communicated through one-way valves (71), (72) in the shift motor (70) from the pistons (66). Rocking of shaft 35, after the clutch is disengaged, is therefore resisted by springs and air pressure until the split piston (73), (74) in the shift motor reaches either of its end positions, i.e. the gear is engaged, when it abuts and opens the respective one-way valve to release the air pressure acting on the respective piston (68) to allow the other piston (68) to hold the lever 10 in its engaged position.
Patent GB-407984-A (GB)
Title: Improvements in starting mechanism for internal combustion engines
IPC: F02N99/00
Filed: 1932-06-29
Abstract: 407,984. Turning - gear. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. June 29, 1932, No. 18353. Convention date, June 30, 1931. [Class 7 (v).] In an engine drive comprising a pinion 28 movable into and out of engagement with an engine gear 18, a unit splined on the power shaft 11 of the starter and in threaded engagement with the pinion, and a hand-actuated sleeve 51 resiliently engaged with the unit to move the unit and the pinion longitudinally, the elements 21, 19, 64, 32 of the unit are held in assembled relation by means of pins and of flanges formed on certain of the elements. The element 21 is a sleeve internally threaded to engage threads 31 on the hub 27 of the pinion 28, which has a smooth bore and slides on the smooth part 13 of the shaft 11. The sleeve 21 is retained on a collar 19, sliding on longitudinal splines 12 on the shaft 11, by one or more radial pins 22 inserted from inside before fitting the collar 19 on the shaft. The sleeve 21 is retained on the threads 31 by a thimble 32 encircling the end of the sleeve 21 and having lugs 33 for engagement with the ends 34 of the threads 31. Radial pins 39 retain the thimble 32 on the member 21. The pinion 28 is normally retained in the position shown by detent members 42 seated in radial openings in the sleeve 21 and held by springs 49 in engagement with the inclined faces 47 of longitudinal recesses 46, Figs. 5 and 6, in the hub of the pinion. Axial movement of the pinion into mesh with the engine member 18 is effected by a fork 54 engaging the sleeve 51 and actuated manually through a link 61 ; a lug 57 on the fork 54 engages a switch plunger 58 on the motor 10 when the pinion is fully in mesh. A spring 63 is interposed between a flange on the sleeve 51 and the edge of the thimble 32. When the engine starts, the pinion is threaded back within the member 21, until stopped by a shoulder 69 formed by the end of the splined part 12 of the shaft, the detents 42 riding up the inclined faces 47 of the recesses 46. On the release of the fork 54, the sleeve 21 is withdrawn by the action of the fork 54 on a second sleeve 64 having a flange 66 clamped between the end of the member 21 and a flange 67 on the collar 19, and the detents 42 ride over inclined faces 48 on the hub of the pinion. If the teeth of the pinion clash with those of the member 18 in the engaging movement, the spring 63 allows the fork 54 to complete its movement and to switch on the motor, rotating the shaft 11 and the pinion and enabling meshing to be effected by the spring 63.
Patent GB-1164436-A (GB)
Title: New or improved apparatus for Mixing Fluids
Inventor: TACCHI PERCY GEORGE
IPC: G05D11/00
Filed: 1966-04-27
Abstract: 1,164,436. Mixing apparatus. P. G. TACCHI. 25 July, 1967 [27 April, 1966], No. 18364/66. Heading B1C. A fluid is injected from a container 11 into a carrier fluid flowing through a line 19 by pressure of the carrier fluid transmitted through a line 15 from a main 16. The necessary pressure differential in the carrier fluid is produced in a mixer 10 which may be as described in Specification 1089511, i.e. it has a restriction the pressure drop across which controls a valve to admit a further fluid (e.g. steam if the carrier fluid is cold water). In the container 11, the additive and the cold water are separated by a diaphragm 27, or by a piston. Water flows to the container through a meter or recorder 29 which is thus able to measure the flow of additive without being in contact with it, and without having to be recalibrated for different additives.
Patent GB-205155-A (GB)
Title: Air induction cleaning apparatus
IPC: A47L5/18
Filed: 1922-07-04
Abstract: 205,155. Sweeny, R. P. July 4, 1922. Filtering. - An air induction cleaning apparatus has an induction pipe comprising a Venturi tube delivering a relatively large stream, and an induction nozzle having a relatively small end inclined to the axis of the pipe and delivering fluid under pressure in a stream inclined to the axis of the pipe, the nozzle entering the Venturi tube near its contracted portion. The pipe ends in a coil delivering below an inclined shelf into a collecting-chamber carrying a filter bag. Fig. 3 shows the induction pipe formed in three sections, section 10 being formed with a cleaning-hole 17 and tapering towards the middle section 4 where it is formed with an extension through which the nozzle 14 enters above the bottom of section 4. The extension may be split to receive the nozzle, the split parts being screwed together. The final section comprises a flared coil 8 within the depositing-chamber 1, delivering below an inclined shelf 5 with a downturned edge 5<1> which deflects the dust into a bag 9, Fig. 1, secured to the chamber 1. This chamber and the bag are supported from braced standards 24 on a wheeled base having a stop 38 which prevents tilting.
Patent GB-1215806-A (GB)
Title: Improvements in or relating to brake pressure control valves
Inventor: RATH HEINRICH BERNHARD
IPC: B60T11/34
Filed: 1967-04-21
Abstract: 1,215,806. Brake pressure control valves; valves. GIRLING Ltd. 10 April, 1968 [21 April, 1967], No. 18470/67. Headings F2F and F2V. In an hydraulic brake pressure reducing valve 1, a first piston 2 is movable in a smaller diameter portion of a stepped bore and a second piston 3, having a passage 8 therethrough, is movable in the larger diameter portion of the bore wherein an extension 7 of the first piston 2 extends through the passage and carries at its free end a valve head 9 for closing the passage from the inlet 21 to the outlet connections 22 such that upon outward movement of the first piston in response to a predetermined inlet pressure control spring means 17 urges the first piston 2 towards the inlet 21 and separate spring means 14 urges the second piston towards the inlet, both pistons having their movement towards the inlet port limited by positive abutment means formed by an end plug member 4 and a shoulder 13. On application of the brakes, fluid is initially permitted to flow freely through the passage 8 from the inlet 21 to the outlet 22 and, at a predetermined pressure, the fluid pressure overcomes the action of the control spring 17 and forces the piston 2 outwardly pulling the valve member 9 into sealing engagement with the valve sealing 12 to isolate the inlet from the outlet. Further increase in the inlet pressure forces both pistons to the left and, by virtue of the difference of the effective area of the two pistons and the action of the coil spring 14, this pressure increase is transmitted to the outlet at a reduced rate. In a modification (Fig. 2, not shown) a by-pass passage is formed in parallel with the passage 8 through the piston 3 and incorporates a check valve for closing the the by-pass passage until the outlet pressure exceeds the inlet pressure whereupon the bypass opens for the rapid release of the outlet pressure when the inlet pressure is relieved. A further embodiment (Fig. 3, not shown), rapid pressure release is provided by a by-pass passage in the form of an axial groove in the larger bore adjacent the piston 3 and controlled by a piston sealing ring. Fig. 5 shows a modification wherein the fixed cup 18 of Fig. 1 is replaced by an axially movable cup 18A engageable externally by a lever connected through a suitable linkage (not shown) to an unsprung or sprung vehicle part so that an increase in vehicle loading further compresses a single control spring 17 to increase the cutoff pressure at which the valve will begin to act as a reducer valve.
Patent GB-992615-A (GB)
Title: Improvements in and relating to temperature compensator units for hydraulic circuits
Inventor: SMITH RICHARD DAVID
IPC: F15B7/10
Filed: 1963-05-10
Abstract: 992,615. Hydraulic apparatus. ARMSTRONG PATENTS CO. Ltd. April 29, 1964 [May 10, 1963], No. 18508/63. Heading F1P. A temperature compensator 26, Fig. 1, connected by lines 22, 24 to lines 14, 16 extending between the transmitter 10 and the receiver 18 of a hydraulic telemotor system comprises a pair of spaced parallel cylinders 30, Fig. 2, into which lines 22, 24 open, and pistons 32 which are pivotally connected by rods 44 to opposite ends of a transverse bridge 40 slidably mounted on a pillar 38 fixed to the cylinder block 36 and located between and parallel to the cylinders whereby the pistons may be displaced against the action of a return spring 42; the clearance between the bridge and the pillar being such as to permit locking of the bridge whenever a degree of unbalance occurs in the piston load on the bridge.
Patent GB-1045147-A (GB)
Title: Improvements in or relating to mixing devices
Inventor: SYMONDS ROY
IPC: B01F3/08
Filed: 1962-05-14
Abstract: 1,045,147. Injectors. WADDINGTON & DUVAL (HOLDINGS) Ltd. May 2, 1963 [May 14, 1962], No. 18538/62. Heading F1E. [Also in Division B1] In apparatus for optionally adding a proportion of a secondary liquid to a primary flow, the latter can flow without addition through the passages 14, 16 to the nozzle 6 so long as the valve member 44 is seated on the seat 24. When the addition of secondary liquid is required the knob 48 is pulled to seat the member 44 on seat 18. The primary flow then passes from inlet 14 to the nozzle 6 both through the aperture 28, passage 22, groove 36 and venturi 34, 40, and through aperture 30 and by-pass passage 32; additive is then induced through pipe 44. The apertures 28, 30 are formed in a rotatable hollow plug 26 which may be adjusted to control the amount of primary liquid which passes through the by-pass 32, and hence the amount passing through the venturi and the consequent suction of the venturi; for any particular installation the plug is pre-set and the device will then provide a desired constant proportion of additive over a range of flow rates. The valve 24, once manually operated is maintained with the member 44 seated on seat 18 against the action of the light spring 50, by the flow pressure. A chamber 42 prevents cavitation at the point of admixture; the venturi throat has a length/diameter ratio of not less than 3:1 and the angle of divergence of the venturi outlet is 2¢ degrees - 7¢ degrees, the preferred value being 4À5À1 and 5 degrees respectively. The device may be attached to a water supply tap and a valve 54 normally closed by water pressure prevents back-siphonage into the mains in the event of a failure in mains pressure.
Patent GB-757653-A (GB)
Title: Improvements in silver halide emulsions
IPC: G03C1/34
Filed: 1954-06-24
Abstract: 2 : 5 - Diketo - 1 - phenyl - 7 - (o - methoxyphenyl)-1 : 4 : 7a-triazaindene is prepared by heating together 1-phenyl-3-amino-5-pyrazolone and ethyl o-methoxybenzoylacetate in xylene.  2 : 5 - Diketo - 1 - phenyl - 7 - (m - methoxyphenyl) - 1 : 4 : 7a - triazaindene is similarly prepared.  Specifications 235,211, [Class 98 (ii)], 599,719 and 599,891, [both in Group IV], are referred to.