baber/WOPTO huggingface dataset:
Patent GB-740721-A (GB)
Title: Braking mechanism for trailer vehicles
Inventor: GRANT KENNETH ALEXANDER
IPC: B62D53/08
Filed: 1952-04-10
Abstract: 740,721. Trailer vehicle brake systems. BROCKHOUSE & CO., Ltd., J. April 10, 1952, No. 18766/53. Divided out of 740,688, [Group XXXII]. Class 103 (1). The invention relates to the arrangement of the braking system on the trailer of a tractor-trailer combination of the type described in Specification 740,688, wherein the trailer has temporary supporting wheels at its front end which are displaceable from an operative to an inoperative position by the coupling of the tractor to the trailer vehicle. Fig. 1 shows the manual brake control on the trailer which is provided by a hand lever 50 pivoted at 48 and acting through links 46 and 42 upon a cable 45 attached to conventional braking means. The brakes of the trailer are normally held applied, when it is not coupled to the tractor, by a leaf spring 41, 52 the ends of which act upon the inner side of buffer blocks 55 to cause arms 56 to press upon the flanges 24 of a slidable member 17. As shown in Fig. 5, the slidable member 17, which has a projection 19 at one end for engagement by the brake transmission 23, 20 extending from the driver's control in the tractor cab, abuts at the other end a bell crank lever 27 having an arm 29 which acts upon a rod 30 passing through the trailer front wheel pivot centre to cause a further bell crank lever 34 to move the slidable bar 39, Fig. 1, so as to cause the lever 42 to pivot about pin 43 and apply the brakes through the cable 45. In this arrangement the action of the floating lever 42 allows independent operation either by the hand lever 50 or the tractor driver's control through cable 23. As shown in Fig. 4, when the tractor is coupled to the trailer, buffer parts 59 press back the ends of the leaf spring 51 so that the arms 56 take up the positions shown dotted in which the bar 17 is free to move either way.
Patent GB-579832-A (GB)
Title: Improvements relating to optical glasses
IPC: C03C3/068
Filed: 1943-11-11
Abstract: 579,832. Optical glass. CHANCE BROS, Ltd., BASTICK, R. E., HAMPTON, W. M., and WANG, T-H. Nov. 11, 1943, No. 18792. [Class 56] Optical glass comprises the following essential constituents within the range of proportions specified namely : Silica (Si02) - - - 10-25 per cent Barium Oxide (BaO) - 15-35 " " Boron Oxide (B2O2)- - 10-30 " " Lanthanum oxide (La203) 8-20 " " Thorium oxide (ThO2) -. 3-15 " ." Zinc oxide (ZnO) - - 2- 8 "<SB> " the amounts of lanthanum and thorium oxides together being not more than 35 per cent of the total glass composition. - Five examples are given. Lead oxide and other-alkaline earth oxides may be added provided that the total of the oxides of lead, zinc and the alkaline earth metals does not exceed 45 per cent of the glass composition. Oxides of zirconium, aluminium, and beryllium may be added to prevent crystallisation.
Patent GB-976580-A (GB)
Title: Tractor-carried mower
IPC: A01D34/03
Filed: 1962-05-16
Abstract: 976,580. Mowers. BOLINDER-MUNKTELL A.B. May 16, 1962 [May 18, 1961], No. 18903/62. Heading A1F. A tractor - mounted mower comprises a frame 1 adapted for pivotal mounting on the draft links 5, 6 of the tractor by pins 3, 4, a cutter bar 2 pivotally mounted on the frame for movement in a vertical plane and an arm 8 mounted on a pivot coaxial with the pin 3 and having at its forward end a member 10 which can be pivoted about an axis 9 to embrace the draft link 5, the other end of the arm 8 being fastened by a chain 15 and a doubleended lever 17 to a bar 18 which is connected to the cutter bar by lever 19. When the draft links are raised (Fig. 3) the frame of the mower pivots about pins 3, 4 but the arm 8 is raised until is engages stop 14 whereby the bar 18 is moved to lift the cutter bar 2. The position of the arm 8 is controlled by the crank 11 adjusting the position of the pins 13 which embrace the draft link. The amount of lateral sway may be controlled by a screw limiting the relative pivotal movement between arm 8 and member 10. Provision for 'breakback' is made by slidably supporting the frame on a bar 23, this normally being held in position by a spring-loaded latch 25 which releases under a certain load to allow the frame to swing back about the draft-link ball-joint associated with pin 3. The cutter is reciprocated by a pitman 27 driven from the power-take-off shaft 31 of the tractor via a pulley 30.
Patent GB-596182-A (GB)
Title: Improvements relating to apparatus for detecting flaws in metal wire
IPC: G01N27/90
Filed: 1945-07-24
Abstract: 596,182. Electric flaw indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd., and GOVAS, G. H. July 24, 1945, No. 18929. [Class 40 (i)] [Also in Groups XXXV and XXXVI] In an arrangement wherein defects in a metal wire 2 are detected by passing the wire through a coil 3 forming part of the oscillatory circuit of an oscillator 1 and noting the changes in frequency as the wire is advanced through the coil, the oscillator output is fed to a frequency discriminator 11 ... 18, the D.C. output of which operates the flaw indicator and means, e.g. an amplifying stage 9, is provided between the oscillator and discriminator to prevent mutual interaction of the resonant circuits of these elements. With a standard wire in coil 2, the condenser 4 is adjusted to tune the circuit 3, 4 to a predetermined frequency. The oscillator anode is coupled through a band-pass filter 6, 8 tuned to twice the frequency of circuit 2, 3 to an amplifier 9, the output of which is fed to a known frequency discriminator 11 ... 18, e.g. as described in Specification 506,876, [Group XL]. The discriminator D.C. output, which varies in magnitude and sense according to the magnitude and sense of the frequency deviation of oscillator 1 from the tuned circuit 12, 13 of the discriminator, is amplified at 18<1> and fed over a condenser 19 to actuate the flaw indicator. A portion of the output from amplifier 18<1> is fed over a delay line 24, 25 to a further amplifier 26, the output of which energizes the heater coil 23 of a thermistor 21 connected in series with condensers 22 as a variable reactance across the tuned circuit 2, 3. In this way, slow frequency deviations of the oscillator 1, due, e.g. to ambient temperature changes or variations in the diameter of the wire 2 are compensated and the indicator responds only to rapid deviations produced by flaws. According to the Provisional Specification, a thermionic valve reactance is used in lieu of the thermistor 21.
Patent GB-296519-A (GB)
Title: Improvements in watches
IPC: G04B37/10
Filed: 1927-07-18
Abstract: 296,519. Addison, W. J. July 18, 1927. Keyless mechanism. -To render the movement dustproof a cupshaped member c is freely mounted between the underside of the winding knob a and the upper edge of the pendant f; or, where there is no pendant, between the knob a and the upper edge of the hole in the casing through which the winding stem b passes. To counteract wear the pendant is thickened or provided with reinforcement g.
Patent GB-1604194-A (GB)
Title: Arrangement for reducing the noise radiated by internal combustion engines
IPC: F02B77/00
Filed: 1978-05-11
Abstract: In internal combustion engines in which the crankshaft is fitted from below, vibrations occur at the bottom crank case flange, which are transmitted to the oil sump fixed to this and cause it to radiate sound, thereby increasing the overall noise of the engine. In order to reduce this radiated noise emission the bottom crank case flanges (2) are connected by transverse stiffening webs (6). The transverse webs (6) can be integrally connected to a frame (3) which is fixed to the crank case flanges (2) by means of bolts (4). The bolts (4) also hold a supporting flange (a), on which the oil sump (8) is supported by way of a rubber elastic element (7). <IMAGE>
Patent GB-1039465-A (GB)
Title: Information processing tape handling apparatus
IPC: G11B15/58
Filed: 1963-05-14
Abstract: 1,039,465. Feeding record tapes. POTTER INSTRUMENT CO. Inc. May 14, 1963 [May 18, 1962], No. 19027/63. Heading G5R. Two vacuum tanks 11, 12 of the type described in Specification 1,039,464, each having a pivoted side 20 or 23, are used to control the tension in a tape 13 feeding from a reel 10. Two links 26, 27 are pivoted to points 28 and 29 respectively on sides 20 and 23 and to a common pivot point 30. The common pivot point 30 has two components of movement, one vertical and one horizontal, as shown. Vertical movement controls via a rod and tube linkage 38, 34, a control valve, Fig. 3 (not shown), which proportionately controls the suction applied to the tanks by pump 36. Alternatively, the vertical movement can control a contact 38, Fig. 4 (not shown), of a potentiometer 39 to vary a vacuum control circuit 40. Horizontal movement controls via a potentiometer 45, rod 43 and universal linkage 48 a reel drive circuit 46.
Patent GB-320058-A (GB)
Title: Winders and rewinders for the purpose of accurately winding or rewinding cinematograph film
IPC: G03B21/43
Filed: 1928-07-02
Abstract: 320,058. Haggett, W. July 2, 1928. Kinematograph apparatus. - Apparatus for rewinding films comprises a "winder" carrying the film and a "rewinder" on to which the film is wound, both the winder and rewinder having winding discs provided with large ball bearings. The winder and rewinder are of similar construction, but the rewinder is provided with driving gear. The Fig, shows a rewinder with a horizontal disc 2 carried by a large ball race 1 and secured to a spindle 3 by a screw 9 and key way 8. The film is wound on to a bobbin 6 similarly secured to the spindle 1. The spindle 3 is driven by helical gears 4 from a shaft carrying a crank handle 5, both the spindle and shaft being mounted in ball bearings 15 in a casing 12. The casing may be screwed to the under side of a table top, and may carry a brake 14 operated by a hand lever or pedal. A construction is described comprising a vertical disc which is held to the ball race by a spring on the spindle.
Patent GB-130245-A (GB)
Title: Improvements in or appertaining to Fishing-tackle.
Inventor: COOPER CECIL WILLIAM
IPC: A01K91/08
Filed: 1918-11-21
Abstract: 130,245. Cooper, C. W. Nov. 21, 1918. Line floats.-A trolling line float is provided with connexions which permit the direction of trail to be reversed without removing the tackle from the water. In the form shown, the shackle 1 of the towing line 3 is mounted to slide freely on a bar 4 fixed in a recess 5 in the float 2, the bent ends of the bar forming stops to limit the movement of the shackle. In a modification, the bar is mounted on a metal plate screwed to the float. The bait-line shackle 7 may, as shown, be similarly mounted to slide on a bar 9 fitted in a recess 10 in the opposite side of the float; the bait line may, however, be attached to the centre of the float. When the direction of trail is reversed, the connexions slide automatically to the opposite ends of the float, as indicated in dot- and-dash lines in Fig. 1. The ends of 11 of the float are bevelled, so that, when being trailed, it is deflected laterally from the line of trail.
Patent GB-154664-A (GB)
Title: Improvements in or relating to moulding and vulcanising apparatus
IPC: B29C33/02
Filed: 1919-08-01
Abstract: 154,664. Dunlop Rubber Co., and Macbeth, C. Aug. 1, 1919. Vulcanizing-moulds.- Apparatus for moulding and vulcanizing tyre studs of the kind described in Specification 118,149, [Class 87 (ii), Moulding plastic &c. substances], comprises a series of moulds A adapted to be placed one against the other or superimposed, e a c h contiguous p a i r of moulds forming a stud. As shown, each mould is formed with a recess A<1> and central hole A<2> to receive the base and stem of the stud, and a space A' to receive the rubber portion. The moulds are enclosed by a tube B carrying adjustable screwed flanges B<1>, B<2> to which are bolted end closing members C, D of which the member C is provided with a recess A' and hole A<2>.
Patent GB-928208-A (GB)
Title: Improvements in or relating to storage racks
IPC: A47B87/02
Filed: 1960-05-30
Abstract: 928,208. Racks. P. D. SPAYNE. Aug. 30, 1961 [May 30, 1960], No. 19116/60. Class 52 (1). Storage racks which may be stacked one upon another each comprise a framework 1 having four uprights 2 connected by members 3 welded thereto and by members 7, 8 of inverted- V cross section the apex edges 9 urging the members 8 of the upper rack into accurate location and the racks being slidable in one direction.
Patent GB-197632-A (GB)
Title: Process for vulcanizing rubber with condensation products of ammonia and aldehydes as accelerators
IPC: C08L7/00
Filed: 1922-07-12
Abstract: The Specification describes the reaction products of open carbon chain aldehydes having more than two and less than eight carbon atoms in the chain, and ammonia.  Specified aldehydes are heptaldehyde, propionaldehyde, cinnamylaldehyde, iso-valeraldehyde.  Specifications 7370/14, and 12661/14, [both in Class 70, India-rubber &c.], 174,915, and 180,978 are referred to.
Patent GB-595243-A (GB)
Title: Improvements in compositions toxic to lower forms of life
IPC: A01N33/12
Filed: 1943-11-18
Abstract: Dimethyl ethyl 9-octadecenyl ammonium ethosulphate, dimethyl allyl 9 - octadecenyl ammonium chloride, dimethyl g -phenylpropyl 9-octadecenyl ammonium bromide, dimethyl benzyl 9-octadecenyl ammonium chloride and dimethyl ethyl 9 - octadecenyl ammonium bromide are prepared by reacting dimethyl 9-octadecenylamine with diethylsulphate, allyl chloride, g  - phenylpropyl bromide, benzyl chloride, and ethyl bromide respectively.  Specifications 390,218, 436,942 and 477,981 are referred to.ALSO:A composition toxic to bacteria, fungi, insects, &c. comprises a vehicle and as an active toxic ingredient a quaternary ammonium compound containing, attached to the nitrogen atom, a 9-octadecenyl radical, two methyl groups, one hydrocarbon radical other than a methyl group and an anion. Specified compounds are dimethyl ethyl 9 - octadecenyl ammonium chloride, dimethyl ethyl 9-octadecenyl ammonium ethosulphite or bromide, dimethyl g -phenyl propyl 9-octadecenyl ammonium bromide, dimethyl b -phenyl ethyl 9-octadecenyl ammonium bromide and dimethyl allyl p  9-octadecenyl ammonium chloride.  The compounds are preferably employed in dilute aqueous solution, if desired in the presence of alkaline detergents such as trisodium phosphate, soda ash, and caustic soda.  Specifications 390,218, 436,942 and 477,981, [all in Group IV], are referred to.
Patent GB-295500-A (GB)
Title: Improvements in wheels for motor cycles
IPC: B62L3/00
Filed: 1927-07-21
Abstract: 295,500. Douglas Motors, Ltd., and Douglas, J. July 21, 1927. Securing together machine elements for transmitting rotary motion.-In means for detachably securing brake drums 9 to motor cycle wheel hubs 2, the hub is extended beyond the spokeflange 3 to form a cone 4 the surface of which is serrated, splined, or roughened to engage corresponding parts on the inturned flange 11 of the brake drum 9. A nut 8 on the screwed end of the hub forces the parts to locked position and is itself locked by a lug 18 on a washer 17 against which bears a packing-ring 13 lying between the drum 10 and the anchor-plate 12 carrying the non- rotating member of the brake.' Felt washers 15, 16 are provided if thin lubricant is used in the bearing 5.
Patent GB-459512-A (GB)
Title: An actuating device for direction indicators, glare-visors and the like provided on vehicles
IPC: B60R16/00
Filed: 1935-07-08
Abstract: 459,512. Road - traffic signals on vehicles. TEAKLE, G. J., 55, Warlingham Road, Thornton Heath, Surrey. July 8, 1935, No. 19427. [Class 118 (ii)] [See also Group XI] A direction indicator, glare visor, or the like is moved by or with a rocker member which is locked in its extreme positions by a pin having lost-motion at the beginning and end of each movement during which it moves into and out of the locking positions. When the operating power is electric current, the rocker may open the operating circuit, the " end " lost-motion being then provided by a spring. As shown in the Figure, the moving unit is connected to the rocker 10 which is swung from the position shown to that indicated in broken lines by the pins 8 fixed to the armature of solenoids 6. When the circuit for the left-hand coil 6 is made, the pin 8 is moved from its locking position under the face 11 of rocker 10 into the slot 12 and then swings the rocker into its left hand position. After the rocker is in its new position, the pin 8 moves under the other abutment face 11 of the rocker, which is now horizontal, and so locks the rocker against movement. If the rocker is arranged to open springs 15 in its own circuit, the final movement of the pin 8 is effected by spring 13 which bears on pin 14 attached to the pin 8 through arm 7. To restore the unit the right-hand solenoid 6 is energized and the pin releases, restores and relocks the rocker in a manner similar to that described above.
Patent GB-357974-A (GB)
Title: Improvements in and relating to electric accumulator flash lamps
IPC: F21V23/00
Filed: 1930-06-26
Abstract: 357,974. Battery charging systems. MACKLEY, A. H., 15, Waterloo Road, Bedford. June 26, 1930, No. 19477. [Class 38 (iv).] A charging device for the accumulator of a self-contained lamp comprises a casing to which the mains are connected through a lamp and resistance, the latter being automatically cut out when the accumulator is placed in the casing for charging. Fig. 2 shows the charging casing and Fig. 4 the circuit. The lamp comprises an accumulator 2 and bulb 4 and a switch 5 which can be closed or opened by push-buttons 6, 7. The charging casing 14 is divided into two compaitments by a horizontal partition 18 which carries a projection 17 which depresses the button 7 when the lamp is inserted and places the switch 5 in the open position. On the underside of the partition 18 is also mounted a switch consisting of a lever 20 pivoted at 21 and normally resting on a contact 22. When the lamp is inserted in the casing 14, a projection on the lamp, which may be the button 6, moves the switch into the position shown in Fig. 4 in which it makes contact with a terminal 12 on the lamp. In this position current from the mains 29, 34 passes through a lamp 33 and through the switch 20 to the accumulator 2. When the accumulator is removed from the casing 14 the switch 20 moves under the action of a spring on to the contact 22 and the circuit is completed through the lamp 33 and a resistance 24. The valve of the latter is equal to the resistance of the accumulator and can be adjusted by rotating the pin 26, Fig. 2, through an opening in the top of the casing 14. With A.C. mains a rectifier is included in the circuit. Specification 315,938, [Class 38 (iv), Electric supply and transmission systems &c.], is referred to.
Patent GB-694401-A (GB)
Title: Improvements in and relating to anti-vibration fasteners
IPC: F16F1/373
Filed: 1951-08-20
Abstract: 694,401. Boxes. NODREY, H. J. Aug. 20, 1951, No. 19569/51. Class 18. [Also in Groups XI and XXV] The lid 31 of a box 30 is secured by a series of fastenings each comprising a stud surrounded by an elastic sleeve of rubber or the like which is compressed axially so as to bulge outwardly to grip the walls of apertures 22 formed in an inturned lip 32 of the box body. The fastener comprises a headed stud 13, Fig. 1, passed through an opening 21 in the lid 31, the deformable sleeve 16 on the stud abutting the lid 31 at one end and a slidable cam ring 17 on the other and cross-arms 19 engaging the cam ring. To secure the lid the fasteners are inserted into their openings 22 which they engage closely and the studs 13 are rotated by means of slots 15 in the heads 14. This causes the cam ring to be forced along the stud by the cross-arms and to compress the sleeve as shown in Fig. 4 so that it bulges out into gripping position. The cross-bar engages with a click in notches 20 in the cam ring in the fully compressed position.
Patent GB-1589138-A (GB)
Title: Crosshead bearings
IPC: F02B75/02
Filed: 1978-05-15
Abstract: The connection between a piston rod (1) and a cross head pin has a connecting bolt (8) which can be removed from the piston rod (1) and passes through the cross head pin (2) as an extension of the piston rod (1). A piston-rod spigot (11) provided at the end of the piston rod (1) is arranged centred relative to the cross head pin (2) and is guided in the latter. The threaded contact between the piston rod (1) or piston-rod spigot (11) and the connecting bolt (8) lies predominantly, i.e. more than 50%, on the crankshaft side, relative to the root plane (7) of the piston-rod spigot (11). The load-bearing thread flights of this screw joint (10) are thus in a region which lies outside the main flow of force caused by the gas forces. The stressing of the screw joint (10) by the alternating gas force flow is thereby considerably reduced. A smaller overall height is also possible. The screw connection (10) can be formed between an external thread of the connecting bolt (8) and an internal thread of the piston rod (1) or between an external thread of the piston rod (1) and an internal thread of the connecting bolt (8). The piston rod (1) can rest on the cross head pin (2) directly or via a spacer. <IMAGE>
Patent GB-315988-A (GB)
Title: Method and means for twisting and winding fibrous materials
IPC: D01H1/00
Filed: 1928-07-06
Abstract: 315,988. Tatham, Ltd., W., and Berry, R. I. July 6, 1928. Spinning-machines with twisting-arrangements at delivery; winding-machines; tension arrangements. - Preliminary or independent twist is imparted to roving, which is subsequently wound or twisted and wound, by rotating the spindles 10 which carry the roving bobbins r, and conducting the yarn by a positively actuated compensating-arm 21 and winding it on spindles 6 by means of guides 23 on a shaft 24 operated by a connecting-rod 29 and eccentric 25, there being an intergeared connection between the spindles 10, 6. A further small twist may be imparted at the winding-on spindles. The spindles 10, 6 are driven from the main shaft 1 through change gearing 13, and spur gearing 4, 5, respectively. The yarn is wound in cup-shaped bosses 9 provided with slits for the yarn adjacent to the guides, and the spindles carry egg or pear-shaped bosses 6<a> provided with axial and helical serrations and corresponding with the bosses 9. The traverse is determined by the adjustment of the connecting-rod so that the lower position of the shaft 24, the slot in the lever being in the shape of an arc of radius equal to the length of the connecting-rod so that the lowest position or the guide is constant and independent of the adjustment of the length of the traverse, whereby a firm nose is ensured. The compensating-arm 21 is oscillated from the traverse shaft by a rod 31 and maintains a constant tension.