baber/WOPTO huggingface dataset:
Patent GB-1341346-A (GB)
Title: Chemiluminescent instrument
IPC: F21K2/06
Filed: 1972-04-19
Abstract: 1341346 Chemiluminescence FORD MOTOR CO Ltd 19 April 1972 [26 May 1971] 18002/72 Heading C4S [Also in Divisions G1 and G2] The concentration of a constituent of a gaseous sample mixture is determined by mixing the sample with a gaseous reactant and measuring the chemiluminescent intensity of the resultant reaction. The particular reaction described is of nitric oxide with ozone as the reactant. To compensate for quenching by, e.g. carbon dioxide, when motor exhaust gases are being analysed four volumes of reactant mixture (ozone in oxygen) are provided for each volume of sample mixture, with atmospheric sample mixtures however four volumes are reacted with one volume of reactant. General apparatus, Fig. 1.-Sample and reactant mixtures 10, 18 are fed via capillary flow metering devices to reaction chamber 16 which is fitted with a wavelength filter window at the top end, behind which a photomultiplier is located. The filter is chosen to transmit red/infra-red radiation (suggested ranges are: 6400-25,000 Š, or within this; 6400-15,000 Š or 10,000-14,000 Š). Pump 26 is used to remove the reaction products. Pressures within the chamber are subatmospheric, e.g. at least about 5 Torr and preferably 300 Torr. A typical reactant mixture is 2% ozone and 98% oxygen. The reaction chamber is designed to provide laminar flow of the gas mixtures. The readout 32 is calibrated in units of concentration of nitric oxide. Rubber seals may be protected with ozone killers. Reaction chamber.-A variety of designs are illustrated including that of Fig. 2. In Fig. 4 (not shown), the reactant conduit (22a) is straight, instead of being curved round towards window 38. In Fig. 5 (not shown), both conduits are straight and do not protrude into the chamber. In Fig. 6 (not shown), two straight conduits are mounted one above the other in the same circumferential position. In Fig. 7 (not shown) the reactant conduit is annular, surrounding a straight sample conduit.
Patent GB-656167-A (GB)
Title: Improvements in friction clutches
Inventor: BURGER FRANK EDWARD
IPC: F16D13/68
Filed: 1948-07-06
Abstract: 656,167. Friction clutches. DUNLOP RUBBER CO., Ltd. July 6, 1948, No. 18092. [Class 80(ii)] Internal and/or external friction surfaces of a cone clutch, or one or both faces of a disc clutch, are formed of rigid segments 6 circumferentially-spaced from each other by surface-bonded resilient (e.g. rubber) material, integral with a ring 5 or disc of similar material surfacebonded to the segments and to a rigid backing 4. In a disc clutch the crosssection of the rubber disc tapers radially outwards and that of the bonded friction element radially inwards, so that the working friction surface remains normal to the axis.
Patent GB-239333-A (GB)
Title: Improvements in or relating to electrical condensers
Filed: 1925-04-24
Abstract: 239,333. Raeburn, C. E., and Taylor, W. E. April 24, 1925. No Patent granted (Sealing fee not paid). Condensers.-A condenser in which the fixed plate system 1, 2 encloses the moving plate system 16 except at the terminal 23 where external connection is made to the moving plate system has the moving plate system resiliently constrained on its spindle. The system 1, 2 is formed of machined castings secured together by bolts 3, there being interposed mica sheets 5, 6 and rÚsilient washers 7 which allow of adjustment of the clearance between the plates 1, 2 bv means of nuts 4 on the bolts 3. A metal ring 31 seals the junction between the system 1, 2, which is secured to a panel 27 and dial 30 by a nut 25 on a boss 24. The control knob 28 is secured to an insulating spindle 8 which is rotatable in the boss 24 and which is flanged at 10 and is recessed to accommodate a fianged insulating spigot 14. The plate 16 is resiliently supported between the flanges by springs 17, bolts 12 securing the parts 10, 14, 16 together. A set screw 15 in the casting 1 provides for axial adjustment of the moving system. The terminal 23 is surrounded by an insulating bush 21 and is electrically connected by a spiral spring 19 to a pin 18 soldered to the plata 16. Any number of moving plates may be used, the corresponding extra fixed plates being located between the castings.
Patent GB-258042-A (GB)
Title: Improvements in accelerators for motorcars
IPC: G05G1/46
Filed: 1925-07-17
Abstract: 258,042. Malkin, E. July 17, 1925. Pedals and pedal levers, mounting. - The throttle is controlled by a wedge-shaped arm A projecting above the floorboard and fixed to a shaft C having another arm E actuating the throttle. When the driver's foot is on the highest point of A the action is the same as an ordinary pedal, but by moving the foot laterally to act on the sloping part of A the throttle can be held in any desired position with - - - - - - - the foot resting firmly on the floor.
Patent GB-1209088-A (GB)
Title: Improvements in piston and cylinder assemblies
Inventor: WILLIAMS DERRICK GEOFREY
IPC: F15B15/22
Filed: 1968-04-18
Abstract: 1,209,088. Plug for pipes. MASSEY-FERGUSON-PERKINS Ltd. 10 April, 1969 [18 April, 1968], No. 18353/68. Heading F2P. [Also in Division F1] A solid or bored end closure 4 for the cylinder 2 of a fluid-operated motor is held in position by a snap-ring 20 which engages a circumferential groove 21 on the inside of the cylinder and a shoulder 22 formed by a reduced diameter portion 23 of the end closure 4. The snap ring 20 is inserted in the groove 21 with a further reduced portion 24 opposite the groove. Thereafter a ring 26 is screwed on to the end closure 4 so that when the ring contacts the end of the cylinder 2 the closure 4 is withdrawn until the shoulder 22 wedges the snap ring into the groove 21.
Patent GB-1200440-A (GB)
Title: Improvements in or relating to an arrangement on an automatic lathe for feeding bar stock
IPC: B23B13/00
Filed: 1969-04-10
Abstract: 1,200,440. Bar stock feed; automatic lathes. FABRIQUE DE MACHINES ANDRE BECHLER S.A. 10 April, 1969 [19 April, 1968], No. 18385/69. Headings B3B and B3T. In an automatic lathe having bar stock feed means comprising a push-rod 6 driven by an endless chain 8 a slip clutch 15 is incorporated in the drive from motor 11 to the chain 8 and switch means 17, 18, 19 are provided which control the rotary speed of lathe spindle 5, the spindle running at a lower speed during loading than during turning to facilitate the entry of the bar stock M into a collet 4 in the lathe spindle. The collet has at its lear or stock-entry end an insert 13 with tapered entry portion 16 and conical recesses 20 also for facilitating entry of the stock bar M into the collet. Switch 19 may additionally control operation of a lathe cam-shaft and reversal of the motor 11 to return the ram 6 to its starting position at which another switch may stop the motor 11.
Patent GB-303132-A (GB)
Title: Improvements in mechanically operated suction cleaners
IPC: A47L9/24
Filed: 1928-06-25
Abstract: 303,132. Grandjean, A. Dec. 29, 1927, [Convention date]. Vacuum cleaning-apparatus. - A vacuum cleaner driven normally by the floor wheels 3 is provided with an angle bracket 1 which can be pivoted down to raise the floor wheels and to convert the machine into a stationary cleaner driven by oscillating a handle 6 which is detached from the lugs 7 and attached to a lever 13 which rocks the toothed quadrant 5 to drive the tree wheel 4 which drives the fan. The end 14 of the flexible tube for a suction brush is provided with a collar which allows the tube to be pushed far enough into the plug hole to reach closing plates 35, 36, Fig. 9, which are clicked together by a finger lever 34 to engage round the tube end and at the same time close the conduit 39 to the floor suction nozzle. For normal floor cleaning the free wheel pinion 4 is declutched from the quadrant 5 by sliding it back on its partly splined shaft until clear of the splines and turning it through 90‹ until short keyways 48 engage with and abut against the splines 44 so that the pinion is held out against the pressure of the spring 46. A rubber stop is provided on the bracket 1 to cushion the stroke of the lever 13.
Patent GB-115386-A (GB)
Title: A New or Improved Folding or Collapsible Ambulance Stretcher, Camp Cot, or the like.
Inventor: BATTEY SYDNEY ALBERT
IPC: A61G1/013
Filed: 1917-12-12
Abstract: 115,386. Battey, S. A. Dec. 12, 1917. Litters and hand-carried vehicles.- A stretcher, camp cot, or the like has side members 1, 2, 3, 4 constructed as parallel strutted beams hingejointed at 10 and connected by jointed transverse bars 12, 13 so as to constitute a framework adapted to fold as indicated in Fig. 2. Each side member comprises upper and lower metallic tubes 1, 5 connected by struts 9. Additional members 15 may be provided to increase the lateral stability. The adjacent ends of the members 5, 15 socket together in the unfolded position. The canvas is laced or otherwise attached to the lower members 1, 2, 3, 4 and is buckled to the transverse bars 12, 13 so that the weight tends to extend these bars.
Patent GB-305897-A (GB)
Title: Improvements in or relating to doors of buildings
IPC: E06B5/18
Filed: 1928-06-25
Abstract: 305,897. Soole, W., and Soole & Son, Ltd. June 25, 1928. Doors and door frames; bodies and panels.-Doors for buildings, such as hospitals, sanatoria, &c., consist of stiles with rails b mortised and wedged thereto and intermediate tenoned crossbars c, an edging e<1> extending around the frame and single panels d of plywood or the like secured on each side, preferably by a mitred joint with the edging. The joints are glued and the edging is glued and screwed, the screw holes being plugged. A window h may be secured by beading in a block provided in the body. Lead or like sheeting for insulating X-rays &c. may be provided in saw-cuts between the members of the frame at the joints and in saw-cuts in the stiles and rails, or between the two members constituting a rail. The lead strips are in overlapping arrangement so as to make an effective screen.
Patent GB-758288-A (GB)
Title: Improvements in or relating to electrical connectors of the insulation-piercing type
Inventor: GREENBAUM ARTHUR
IPC: H01R4/24
Filed: 1954-06-24
Abstract: 758,288. Two-part couplings. ACADEMY ELECTRICAL PRODUCTS, CORPORATION. June 24, 1954, No. 18511/54. Class 38 (1). In a plug connector comprising a two-part insulating member 11, one part only of which is shown, and a cover 22, the flat pins 3 are bent to form shoulders 5 and the inner ends have trunnions 6 pivotable in the member 11. Insulation-piercing spikes 9 are stamped up from the pins and extend inwardly of member 11 into a central passage 12 for receiving a flat twin-core cable C. When the latter is inserted into the passage 12 after being threaded through an aperture 25 in cover 22, the end engages the shoulders 5 and causes the pins to. pivot outwards. After the cable has been pushed home, the pins are pressed together to cause the spikes 9 to pierce the cable insulation and contact the conductors, whereupon the cover is slid over member 11 and is retained thereon by lugs 7 on the pins which snap into recesses 23 in the cover. As the pins are pressed together the shoulders 5 grip the insulation of the cable to form a cord grip. Fig. 9 shows a modification wherein the spikes 30 on the pins are of arcuate shape, the pins in this case being swung in both directions by hand since the outer ends of the spikes rub against projections 31 which retain the pins in the separated position. The aperture 33 in the cover, for the cable, is offset in this construction so that the cable is kinked and additionally gripped between the cover and member 11, which may be provided with teeth 32, 34.
Patent GB-998271-A (GB)
Title: Governors for rotary pumps
Inventor: YOUNG JOHN MICHAEL CRISPIN
IPC: G05D13/00
Filed: 1961-05-23
Abstract: 998,271. Governors. JOSEPH LUCAS (INDUSTRIES) Ltd. May 17, 1962 [May 23,1961], No. 18535/61. Heading G3B. In a governor for a rotary pump 1 in which the outlet pressure of the pump is controlled by a centrifugally operated valve 6 acting against springs 9 a cylinder contains a piston 10 which acts as an abutment for the springs 9 and the pressure difference between the pump inlet and outlet operating on different sides of a diaphragm 19 actuates the diaphragm to apply a pre-determined pressure to the side of the piston 10 remote from the springs 9 at manually adjustable cam 23 varies the pressure at which a spring 22 bears against the diaphragm 19.
Patent GB-369485-A (GB)
Title: Paper web tensioning means for reel-fed printing presses
IPC: B65H23/08
Filed: 1931-06-26
Abstract: 369,485. Printing-machines. JAMES, H. V., Cintra, Watford Road, Radlett, Hertfordshire. June 26, 1931, No. 18565. Addition to 352,190. Drawings to Specification. [Class 100 (i).] In the web-roll braking apparatus described in the parent Specification, the brake,. connected to the third member of the epicyclic gear, consists of a direct current generator driven by the epicyclic gear, the braking energy generated being varied by means of a variable resistance in its field or armature circuit or by varying the speed of the motor driving the second element of the epicyclic gear. This motor may be driven by direct or alternating current.
Patent GB-1102194-A (GB)
Title: A pit prop with a detachably-secured prop shoe
IPC: E21D23/04
Filed: 1965-05-04
Abstract: 1,102,194. Pit prop. GEWERKSCHAFT EISBNHUTTE WESTFALIA. 4, May, 1965 [5, May, 1964], No. 18686/65. Heading E1E. A pit prop 13 has a detachably - secured prop shoe 10 articulated thereto by a ball and socket joint 12, 16 having members held together by a ring member 20, 21 surrounding the ball member 12 with a clearance, detachably attached to the socket member or prop foot 16 by pins 27 and connected to the ball member 12 by a rod 22 passing through a bore 23 therein. The pins 27 are forced to engage in bores in the ring member 20, 21 to be held therein by a spacer 28 and half rings 29 to extend as shown. Transverse clamping pins 24 hold the rod 22 in the ring member 20, 21. In a modification projections on the socket member 16 engage in recesses in the ring member 20, 21 to be held therein by tangential pins extending over the recesses from the ring member 20, 21.
Patent GB-990975-A (GB)
Title: Improvements in or relating to hydraulic brakes
Inventor: DOTTO GIANNI ABRAHAM
IPC: F16D65/54
Filed: 1961-05-24
Abstract: 990,975. Fluid-pressure operated disc brakes. DAYTON STEEL FOUNDRY CO. May 24, 1961, No. 18754/61. Headings F2E and F2F. In an hydraulically-operated spot-type disc brake a secondary piston is received in each primary or pad-applying piston and is connected to the calliper housing for limited relative movement, and a drag seat is interposed between the two pistons which exerts a greater drag force on the primary piston during application than during release of the brake, the drag seat including a ramp on the secondary piston and a ring mounted on the ramp which under the influence of spring means exerts a wedging action during movement of the primary piston in the application direction, and the secondary piston is arranged to have a sufficient area exposed to hydraulic pressure for it to move relative to the primary piston through the drag seat under the influence of this pressure during brake release, so that excess travel of the primary piston relative to the secondary piston during brake application is taken up during brake release to ensure constant pad clearance. In the embodiment of Fig. 1, hydraulic fluid admitted at 26 enters each of a pair of fixed body sections 14, 15 surrounding a portion of an axially fixed disc, or alternatively, the disc may be axially floating in which case the fluid is admitted to one section only. In either case the fluid acts on both a primary piston 32 and a secondary piston 40 in the or each body section, the former piston applying a pad 33 to the disc and the latter being arranged to compress a spring 62 until it engages flange 50 on a fixed stud 45, such movement corresponding to pad clearance. Additional movement of piston 32 in moderate or heavy application causes relative movement between the pistons via split ring 67 which is wedged between ramp 66 on piston 40 and bore 41 in piston 32 by a belleville washer 70. On brake release after modderate braking the pistons move back together to re-set the clearance according to gap 60. After heavy braking, however, hydraulic pressure on piston 40 is sufficient to overcome the relatively low drag of ring 67 in the release direction so that piston 40 is held against flange 50 until pressure has dropped sufficiently for distortion of the body during braking to disappear, whereby overadjustment of pad clearance is prevented. In the modification of Fig. 2, adjustment of the pressure exerted by the belleville washer 121 on split ring 111 is provided for by a rotatable cap 120. The embodiment of Fig. 3 (not shown), is similar but includes an isolating member disposed within the bore of the primary piston and having ducts whereby the hydraulic fluid is enabled to act over the entire cross section of the primary piston in addition to the secondary piston. Fig. 4 shows an embodiment similar to that of Fig. 1, but including such an isolating member 235 and ducts 250 in the primary piston as well as in the isolating member
Patent GB-1015658-A (GB)
Title: Radiation source
IPC: H01S3/00
Filed: 1964-05-06
Abstract: 1,015,658. Optical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 6, 1964 [May 20, 1963], No.18758/64. Heading G2J. [Also in Divisions G1 and H3] A source of radiation in the far infra-red, i.e. 10-1000 microns, is produced by directing coherent light 40, 42 from two lasers 22B, 24B on to the surface region 18 of one conductivity type, delineated by electrodes 14, 16, of a high mobility semi-conductor crystal 10, the frequency of the resultant radiation 30 being the difference between the frequencies of beams 40 and 42. A source 20 is connected across electrodes 14, 16 to produce a field of 2, 000 volts per centimetre. The beams 40, 42 may be reflected or refracted so as to approach the crystal along the same path, Figs. 1 and 2 (not shown), in which case the resultant radiation is at the angle corresponding to crystal 10 being a plane reflector. If however the beams 40, 42 have different angles of incidence the resultant beam 30 does not traverse path 46 corresponding to the angle of reflection for an incident beam 44, the mean of beams 40, 42, incident upon a plane reflector, but beam 30 is as shown nearer the normal to crystal 10 if laser 24B has the higher frequency and more distant than 46 from the normal if laser 24B has the lower frequency, a construction for obtaining the exact direction being described with reference to Figs. 4 and 5 (not shown). This characteristic may be used to measure angles, for an angular rotation of crystal 10 is amplified in the angular movement of beam 30. Alternatively the position of one of the lasers may be changed. It also follows from the angular relationship of beam 30 to beams 40, 42 that if the two input beams approach the crystal along the same axis but one beam has parallel components and the other convergent or divergent components the output beam will be convergent or divergent respectively, which means that lens elements need not be inserted in the beam 30 of far infra-red radiation but can be inserted in beams 40, 42 of optical radiation. The lasers 22B, 24B may be different lasers, a single laser operating at two different frequencies or two identical lasers operated at different temperatures to produce different frequencies. If the dimension of surface 18 is half a wave length of radiation 30 the total power emitted is an optimum, but if it is several times such wavelength beam 30 is highly collimated.
Patent GB-279548-A (GB)
Title: Improved constructions and methods of operating crankless internal combustion and explosion engines
IPC: F01B3/02
Filed: 1926-07-27
Abstract: 279,548. Grankless Engines, Ltd., and Michell, A. G. M. July 27, 1926. Two-stroke-cycle engines; driving- gear. - In engines with cylinders 1 arranged parallel to the driving-shaft 4 the compression space 3 is varied by moving the driving gear such as the swash plate 5 together with the pistons 2 axially with respect to the cylinders. As shown a thrust block 8 on the shaft. is received in a housing 15 which has a screwed extension 17 working in a nut on the engine frame 16. By turning the screw the shaft with the swash plate is moved axially. The thrust block may be attached to the swash plate and a hydraulic press may be used to move the gearing instead of the screw and nut. A coaxial pump 10 has its compression space varied simultaneously with that of the main cylinder. The pump barrel has a number of holes 13 which can be covered by a sleeve 14 moved independently or through gearing 18, 21 from the extension 17 when it is turned to adjust the shaft. Each pump may supply its own cylinder or in the case of a multiple-cylinder engine the pump may supply to a, reservoir from which the charge flows to the working cylinders in turn. The liquid fuel supply may be varied simultaneously with the position of the shaft 4. Specification 118,098 is referred to.
Patent GB-425440-A (GB)
Title: Improvements in belts for wear
IPC: A41F9/00
Filed: 1934-06-26
Abstract: 425,440. Signals carried by road users. MILBURN WOODINGS & CO., Ltd., and MASON, G. H., 79, Rushohne Road, Manchester. June 26, 1934, No. 18787. [Class 118 (ii)] A belt for personal wear is made in three sections a, a<1>, a' secured by stitches or rivets, or by links &c., the back section being studded at intervals with reflectors B secured by rivets &c. The back section may also be enamelled white.
Patent GB-1312011-A (GB)
Title: Finishing of pile fabrics
IPC: D06C29/00
Filed: 1971-06-03
Abstract: 1312011 Finishing fabrics SCHEIBLER PELTZER & CO 3 June 1971 [13 June 1970] 18877/71 Heading D1S A pile fabric containing thermoplastic synthetic fibres is finished by heating its rear side to about the heat-setting temperature of the synthetic fibres, e.g. a temperature within 10‹C of the heat-setting temperature. Preferably, heating is effected by passing the rear side of the fabric over a heated drum. Whilst being heated, the pile may be brushed by a card or brush.
Patent GB-1256205-A (GB)
Title: Improvements in and relating to the making of lithium ferrites
IPC: C01G49/00
Filed: 1970-04-21
Abstract: 1,256,205. Magnetic compositions. AMPEX CORP. 21 April, 1970 [5 May, 1969], No. 18884/70. Heading H1H. [Also in Division C1] Lithium ferrites containing nickel and manganese suitable for preparation of ceramic magnetic devices are obtained by mixing together and fusing lithium carbonate, lithium chloride, an iron oxide, nickel and manganese oxides, and then cooling and extracting LiCI from the mixture. In an example a pure ferrite of formula Li 0 . 45 Ni 0 . 10 Mn 0 . 20 Fe 2 . 25 O 4  is obtained. In a further example, the nickel and manganese oxides are omitted, the product being Li 0 . 5 Fe 2 . 5 O 4 . 0 .
Patent GB-211069-A (GB)
Title: Improvements in the construction of the chassis for baby carriages, bath chairs, side-cars and the like
IPC: B62K27/06
Filed: 1923-07-25
Abstract: 211,069. Salmon, H. E. July 25, 1923. Rod couplings. - In a baby carriage, bath chair, side-car, &c., conical coil springs 5 constitute the sole means of connection and attachment between the body and a tubular chassis, each spring being secured to tubes 1, 2, Fig. 1, of the chassis by one of a number of brackets 3 thereon, some of the brackets being adapted to receive the wheel axle or axles 6. The brackets 3 which slide on the tubes 1, 2 and are removably clamped thereto by screws 8, are each provided with a vertical extension 7, to which one of the springs 5 is secured, and with a transverse hole to receive the axle 6 which spaces apart the tubes 1, 2 and is secured in the bracket by jaws 9 adapted to be drawn together by a bolt 10.