baber/WOPTO huggingface dataset:
Patent GB-174094-A (GB)
Title: Improvements in or relating to thermal switches for electrically heated apparatus
IPC: H05B1/02
Filed: 1920-10-20
Abstract: 174,094. Lee, F. W. R., Lee, E. R., and Colledge, V. F. H. Oct. 20, 1920. Thermal switches and cut-outs.-In electric heating-apparatus, such as kettles, flat-irons, sterilizing-apparatus, &c., of the type in which the temperature is controlled by a thermostat or thermal switch comprising a mercury thermometer e, the bore of which is open to receive an adjustable contact, the bore is made of small diameter so that the mercury retains its position therein by capillary action irrespective of the position of the apparatus. In the arrangement shown in Fig. 1, the circuit including the thermal switch e is shunted across the leads b, c to the heaters a. When the predetermined temperature is reached, and the switch circuit is closed, the fuse d is blown and cuts out the heaters. In the modification shown in Fig. 2, the thermal switch e and a magnetic coil k which normally keeps the main switch g, h closed are arranged in parallel across a tapping from the main heating-circuit. On completion of the circuit through the thermal switch when the predetermined temperature is reached, the magnetic coil k is short-circuited and the main switch g, h opened. In a further arrangement shown in Fig. 3, the main switch p, q for the heaters a is normally closed, but is opened when the magnetic coil k arranged in series with the thermal switch e is energized. The switch e and coils are supplied with current from a potentiometer r connected between the mains b, c. When the temperature falls and the thermal switch is again opened, the main switch p, q recloses. Instead of a single contact extending into the bore of the thermometer, more than one contact may be employed, one of which is selected by a selective switch according to the temperature required.
Patent GB-628503-A (GB)
Title: Improvements in and relating to the production of organic hydroxy compounds
Filed: 1947-04-23
Abstract: 2 (iii) Phenol is prepared from benzene by vapour phase oxidation with an oxygen-containing gas in the presence of a dehydrating catalyst not containing substantial amounts of free alkali.  Suitable catalysts specified are alumina-silica gel, silica gel, alumina, alumina gel, china clay, bentonite, kaolinite, and the blue oxide of tungsten; it is preferred to acid-treat them before use, e.g. with phosphoric or hydrofluoric acids.  The preparation of a suitable aluminasilica gel is given.  The ratio of oxygen-con taining gas to benzene is not critical, but is preferably between 5 : 1 and 1 : 5 at atmospheric pressure.  The preferred space velocity range is 25-1500 (volume of vapour passing through the converter per hour per unit volume of catalyst space).  The temperature used is up to 700 DEG  C. and the pressure up to 500 atmo spheres.  The process is preferably operated continuously, recycling the unconverted ben zene.  In an example, benzene is oxidized to phenol with air at 700 DEG  C., using a sodium metaphosphate-alumina catalyst.  The Pro visional Specification refers also to the use of toluene and other alkyl benzenes in place of benzene itself, and to liquid phase reactions.
Patent GB-540274-A (GB)
Title: Improvements in means for periodically interrupting electric currents
IPC: H05C1/04
Filed: 1940-06-27
Abstract: 540,274. Electromagnetic interrupters. CRABTREE & CO., Ltd., J. A., and McLOUGHLIN, H. F. June 27, 1940, No. 10943. [Class 38 (v)] An interrupter for the primary winding of an induction coil, the secondary winding of which may be used for electrically charging wires for preventing animals &c. from straying, comprises a ball g adapted to be propelled up an inclined runway f when the armature c is attracted. The circuit to the primary winding is thereby broken at contacts x, x<SP>1</SP> but is remade when the ball returns. The slope of the runway f is adjustable to vary the periodicity. The core and armature of the induction coil may be constructed in accordance with Specification 540,273.
Patent GB-1423932-A (GB)
Title: 4-amino-quinolines
IPC: C07D215/44
Filed: 1974-03-12
Abstract: 1423932 4 - Amino - 8 - trifluoromethylthio-quinoline derivatives ROUSSEL-UCLAF 12 March 1974 [12 March 1973] 11010/74 Heading C2C Novel compounds (I) (including salts thereof) where X is H, C 1  to C 6  alkyl, 2,3-dihydroxypropyl, 2,3-isopropylidenedioxypropyl, pivaloyloxymethyl or o-carboxyphenyl, are made by interacting 4-choro-8-trifluoro-methylthio-quinoline (obtained by treating the 4-hydroxy compound with POCl 3 ) and methyl anthranilate to give (I) where X is methyl from which other compounds (I) can be obtained by standard methods; the 2,3-dihydroxypropyl compound can also be prepared by hydrolysing the 2,3- isopropylidene-dioxypropyl compound. Ethyl o - trifluoromethylthioanilinomethylene malonate and 3-carboxy- and -ethoxycarbonyl-4- hydroxy - 8 - trifluoromethylthio - quinolines are also prepared. Pharmaceutical preparations having antiinflammatory and analgesic actions contain (I) as active ingredient.
Patent GB-215549-A (GB)
Title: Improvements in change speed gearing
IPC: F16D21/04
Filed: 1923-04-23
Abstract: 215,549. Zachariadis, T. April 23, 1923. Variable-speed gearing comprises a shaft 3 with clutch dogs 29 slidable inside the clutch-formed bosses of loose gears 16 - - 20 meshing with gears 9 - - 13 upon a driving-shaft 2. One end 4 of the shaft 3 is squared and slides within a squared socket 5 in a driven shaft 6. A distance-piece 28 between the low-speed wheel 16 and the reverse driven wheel 20 allows the clutch dogs 29 one free position. Ratchet clutches 45 in the bosses of the wheels 9, 10, 11 allow the dogs 29 to pass through the close-together wheels 16 - - 19, a ratchet-clutch 45 over-running whenever the dogs 29 engage two of the wheels 16 - - 19 simultaneously.
Patent GB-372519-A (GB)
Title: A point shifting device for toy railways
IPC: A63H19/32
Filed: 1931-04-14
Abstract: 372,519. Toy railways. MARKLIN ET CIE, GES., GEB., 55, Stuttgarter Strut, and SAFFT, R., 23, Burgstrasse, both in Goppingen, W³rtemberg, Germany. April 14, 1931, No. 11029. Convention date, May 6, 1930. [Class 132 (iii).] The tongues c, c of a point shifting device are carried on a plate b pivoted at a and adapted to be held in either of its terminal positions by a weighted lever d freely mounted on a spindle e and coacting with stop arms g, g<1> of a threearmed lever h, g, g<1>, a rod i connecting plate b and arm h. The points when in the position shown in Fig. 1, may be operated by the wheels of a train passing from the curved to the straight track, or if in the other position would be operated by a train passing along the straight track from left to right. For trains moving from right to left the points are operated by hand. An extension of the rod i may be adapted to operate a signal in accordance with the position of the points.
Patent GB-993178-A (GB)
Title: Synthetic plaster set retarder
IPC: C04B24/12
Filed: 1963-03-21
Abstract: A retarder for plaster comprises a mixture of a proteinaceous hydrolysate and a water-soluble alkali metal, alkaline earth metal, ammonium or triethanolamine salt of a C3-9 aliphatic polyamino polycarboxylic acid, or the acid itself. Diethylene triamine penta-acetic acid is preferred.
Patent GB-617181-A (GB)
Title: Fountain brush
IPC: A46B11/00
Filed: 1946-04-12
Abstract: 617,181. Fountain-brushes. MARSH STENCIL MACHINE CO. April 12, 1946, No. 11343. Convention date, April 12, 1945. [Class 19] A fountain-brush designed for stencilling sides and tops of cartons and provided with an elongated tubular handle forming a liquid reservoir, is characterised in that a hollow neck . which is in communication with the interior of said handle and contains a valve for controlling the flow of liquid therethrough extends laterally from the middle portion of the handle and has a liquid applicator such as a brush attached to its outer end, said applicator or the bristles of said brush extending substantially at right-angles to the longitudinal axis of said tubular handle. In the drawings, the brush includes a handle-reservoir 10, a neck 11 and a brush part 12. A removable end closure 13 may be provided on the handle and the neck 11 contains a valve mechanism and communicates with the interior of the handle 10 through a port and a funnel-shaped part 16 having a circular opening terminating in a transverse bore 17 below which a circular opening 18 opens into the brush 12. The bore 17 opens through to one edge wall of the neck portion and has a sleeve 20, which may be of brass, within it, this sleeve having two transverse ports forming continuations of the openings 16 and 18. The valve unit is threaded into the opening 17 and includes an outer sleeve 22 having an outer shoulder followed by a threaded portion and the latter followed by a reduced port 25 that slides into the sleeve 20 with a liquid-sealing fit and has a squared-off end disposed beyond the edge of the opening 16. The sleeve 22 is hollow and receives the valve stem having a slide valve head 27 secured thereto, the latter being cylindrical and having a squared-off end adapted to engage the end of the projection 25 in sealing relationship. The valve stem passes through a hollowed-out portion 28 of the member 22 where it is surrounded by a coil spring 29 and packing washer means 30. An operating button 31 threaded on to the stem 26 acts as one abutment for the spring 29 which normally holds the valve head in sealing fit with the end of the projection 25. In operation the handle-reservoir is filled with liquid, e.g. ink for stencilling, and grasped by the hand so that the button 31 is convenient to the thumb or heel of the hand or when the brush is turned round, to a finger. A minimum amount of button operation is required since the end of the projection 25 is arranged to intersect the circular passage 16 at about halfway outward from the centre of the passage so that the valve head on depressing the button 31 moves substantially from the half-way mark on one side of the centre of the opening to the half-way mark on the other side, thus securing maximum opening for minimum movement. On releasing the button the valve closes and seals off the liquid supply.
Patent GB-234080-A (GB)
IPC: B65B11/54
Filed: 1925-05-01
Abstract: 234,080. Schweiz Industrie-Ges. May 1924, [Convention date]. Packeting by wrapping-up. - Relates to machines for wrapping objects of various shapes in paper, tin foil, or the like, and in which the wrapper is applied by passage through a diaphragm and the edges are applied to the uncovered side by folders. The articles 5, Fig. 3, are fed by a supply table 1 with apertures 2 and with an exchangeable sheet metal disc 3 with openings 4 of the shape of the articles to be wrapped. The articles are placed in the openings 4 with their flat faces upwards and the lower faces resting on diaphragms 6 secured to the bottom of the table 1. A plunger 20 thrusts the article, and a wrapper 9 which has been fed into the position shown, through a frame 8 with brushes 7 which effect the preliminary folding. A lower plunger 21 rises to meet the article and descends in synchronism therewith. Bands 16, 17 extend over the plunger 21 and are held taut by weights 18. On arrival at the position shown in Fig. 7, horizontally acting folders 10, 11 advance and turn down upstanding portions of the wrapper. The folders recede to the edge of the article and remains while complementary folders, acting at right angles to the folders 10, 11, turn down the remaining upstanding portions of the wrapper. All the horizontal folders then recede and a plunger pushes the packet along the band 16 and into a delivery shoot. While the folders are completing the wrapping of the packet, the plunger 20 returns to its initial position and brings another object into the preliminary folder 7.
Patent GB-855565-A (GB)
Title: A process for the preparation of bicyclo (2,2,1) heptanols
IPC: C07C35/29
Filed: 1958-11-25
Abstract: Bicyclo (2,2,1)-heptanols are prepared by contacting 1 mole of a bicyclo-(2,2,1)-heptene with 1 to 10 moles of 75-100% sulphuric acid in the presence of a non-reactive solvent at 0-30 DEG C. for 0,5 to 5,0 hours and recovering the solid bicyclo-(2,2,1) heptanol product. The reactant preferably contains no more than one alkyl side chain and may be prepared by Diels-Alder condensation of a cyclopentadiene compound and a mono olefin.  In an example dicyclopentadiene is condensed with ethylene and the resulting norcornylene hydrated in iso-octane at below 10 DEG  C. and the norborneol (exo isomer) recovered by distillation.
Patent GB-537948-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B19/18
Filed: 1940-07-11
Abstract: 537,948. Kinematograph apparatus. KODAK, Ltd. July 11, 1940, No. 11558. Convention date, Nov. 4, 1939. [Class 97 (i)] In apparatus comprising a chamber to receive a film magazine having a shutter for an exposure aperture therein, means mounted on a support co-operates with the shutter to locate the magazine, and is itself movable to open the shutter ; such means may be combined with latching means for the cover of the apparatus. As shown, a shutter 61 gripped between the front wall 45 of a magazine and an offset portion 53 of a resiliently-mounted front gate member 50 is rotatable by a squared pin 63 which, when the magazine is in place, projects into a square opening 71 in a bush at the centre of a gear sector 67. The engagement locates the magazine so that its exposure aperture 46 is centred on the lens axis 0-0, and rotation of the sector opens the shutter. Rotation may be effected by a rack 83 on a latch bar 74 movable by an external knob through a toothed sector 78 and a further rack 77 on the bar 74 ; the bar 74 has projections 75 engaging slots in pins 72 on the cover 18 to hold the cover in position. Details of construction of the apparatus, of a spring motor, of mechanism driving a claw feed, shutter &c. and of the gate in the magazine, are described, and are closely similar to those described in Specifications 537,946, 537,949, 539,132, and 539,142.
Patent GB-117731-A (GB)
IPC: A61C19/10
Abstract: 117,731. Leuchsenring, H. H. Sept. 26, 1917. Colour scales.-A shade guide for use in comparing stock artificial teeth with the natural teeth of a patient comprises a plate or holder 1 having recesses to receive the shanks 8, Fig. 6, of the teeth supports 3, each tooth 5 being carried in the upper end of its support by a. pivot 6 and held in any adjusted angular position by parallel spring tines 14, 15, which may be struck-up from the support and engage the back of the tooth on opposite sides of the pivot..
Patent GB-332275-A (GB)
Title: Improvements in or relating to electrical relays
IPC: H01H51/10
Filed: 1929-04-16
Abstract: 332,275. Automatic Telephone Manufacturing Co., Ltd., and Simpson, L. M. April 16, 1929. Automatic exchange apparatus. -An interlocked relay comprises upper and lower electromagnets 12, the upper of which is provided with a retarding copper band 13, the electromagnets having pivoted armatures '22, 18 disposed at opposite sides of the windings and each controlling separate sets of contact springs, a bell-crank interlocking member 20. 14 extending between the armatures. The end of the arm 20 is formed with a V-notch cooperating with a pawl 21 pivoted at 23 on the upper armature 22 and so arranged that normally it rests against a screw 24 holding its inclined end just clear of the end of the bell-crank arm 20. Thus if the upper electromagnet is energized its armature can complete its stroke unimpeded bv the interlocking member, but if the lower electromagnet is first energised its armature 18 engages the lower end 17 of the interlocking member moving the arm 20 into the path of the pawl 21. If the upper electromagnet is now energized the pawl 21 engages the arm 20 and holds it in position even if the lower electromagnet is subsequently de-energized. If, however, the electromagnetsare energized in the reverse order the upper armature can complete its contact-operating movement and the energizing of the lower magnet allows the pawl to rest in the notch formed in the arm 20. Subsequent de-energization of the upper electromagnet however causes the pawl to ride over the end of the arm 20 so that a further energization, while the lower electromagnet remains energized, prevents the complete movement of its armature in the manner previously described. Automatic exchange systems.-The application of the above interlock to the line and cut-off relays of a line switch prevents false calls by called parties when connections are released bv calling parties. On an incoming call, relay K is energized and closes a. circuit K5, l1 for L which cannot operate its armature. When the calling party hangs up, K falls back, but L continues to inhibit itself, remaining energized first by its own sluggishness and then over the line until the called party hangs up.
Patent GB-1531914-A (GB)
Title: Safety belt retractor
IPC: B60R22/38
Filed: 1976-03-24
Abstract: 1531914 Safety-belt retractors ALLIED CHEMICAL CORP 24 March 1976 [2 May 1975] 11859/76 Heading A3V In a safety belt retractor which is beltsensitive and adapted to incorporate also a vehicle sensitive mechanism, particularly the retractor described in Specification 1430709, wherein the inertia wheel 100 which moves translationally to initiate belt-sensitive locking and is engageable by the vehicle-sensitive mechanism for vehicle-sensitive locking in the same manner is coupled to its support 104 by way of a clutch to allow support 104 to continue to rotate relative to wheel 100 after the latter has been engaged by the vehicle sensitive mechanism but before the reel has locked, the clutch is constituted by a clutch plate 102 fixed to support 104 and in clutching engagement with the wheel by virtue of an interposed biassing means 132 which urges the plate 102 against retaining means such as fingers 120 on the wheel.
Patent GB-238294-A (GB)
Title: Self-focussing enlargers and copying cameras
IPC: G03B27/36
Filed: 1924-05-14
Abstract: 238,294. Rowatt, J. May 14, 1824. Enlarging, copying, and reducing. - Relates to automatic focusing-mechanism of the kind in which the conjugate focal distances are maintained by right-angle linkwork, and comprises constructions in which one arm of the right angle is directly connected to one of the carriers, for example the easel, and in which two adjustments only are necessary to adapt the mechanism for use with any lens. In the form shown, the body 3 of the camera, to which the lens panel is fixed, slides vertically on an upright 2 secured to a baseboard 1 which supports the sensitive surface. The negative carrier slides vertically on the body 3 and carries a vertical distance-piece 10 having a stud 11 engaging a slot in a lever 8 to which is rigidly connected, at right angles thereto. a tube 6 sliding on a rod 5 pivoted at 12 to the baseboard 1. The tube 6 is pivoted at 22 to an axle fixed in a slot in an arm 9 which is secured to the body 3 at an angle of 45‹ to the axis of the camera. The pivot 12, stud 11, and' the axis of the piece 10 are on a straight line parallel to the axis of the camera, and the axis of the arm 9 intersects the axis of the camera at the centre of the lens. The distance between the plane of the negative and the stud 11 is equal to twice the focal length of the lens, plus the internodal distance : and the distance along the arm 9 from the axis of the camera to the pivot 22 is equal to the square root of twice the focal length of the lens. To adapt the apparatus for lenses of different focal length, the piece 10 is slotted so that it may be adjustably clamped to the negative carrier by a nut 18, and the axle 22 may be clamped at any point in the slot of the arm 9. A modified mechanism is described wherein the arms 5, 8 of the right-angle linkage are rigidly connected together, and the arm 5 slides in a guide member turning on the pivot-pin 12. The linkage may be duplicated on the other side of the body. The lens is mounted in a focusing mount so that the degree of focus may be adjusted. It is immaterial which of the three elements, the lens, negative carrier or support for the sensitive surface, is fixed, and the mechanism may be applied to horizontal enlarging &c. apparatus.
Patent GB-1472040-A (GB)
Title: Apparatus for use in sawing doors
IPC: B23Q9/00
Filed: 1976-03-16
Abstract: 1472040 Sawing apparatus S D HARRIS and P RYMAN 16 March 1976 [21 March 1975] 11981/75 Heading B5L  Apparatus suitable for use in increasing the clearance at the bottom of a door 1 comprises guide means 11, 12 having adjustable clamping means 15 ... 26 adapted to grip both the width and thickness of a door while the door is in situ on its mountings, a carriage 2 adapted in use to be traversed on the guide means across the width of the door and means 4 on the carriage for supporting a saw 3 in cutting relationship to the door. As shown the saw is circular and driven by a reversible electric motor but the apparatus may be designed for use with a manually operated saw or power jig-saw. End brackets 14 secured to the guide bars 11, 12 carry floor-contacting screws 27, 27<SP>1</SP> which serve to adjust the height of the cut, to prevent the door swinging in operation and to limit the traverse of carriage 2. As shown the carriage 2 is formed as a safety guard for the saw 3.
Patent GB-200945-A (GB)
Title: Improved construction of wheel for vehicles
IPC: B60B3/02
Filed: 1922-04-29
Abstract: 200,945. Clark, H. C. April 29, 1922. Disc wheels.-A wheel comprises a dished metal disc (or a pair of discs riveted or welded together) the outer edge (or edges) being flanged to form the felloe. In the construction shown in Fig. 1, the main disc 1, apertured at 2 to fit the axle box, is flanged to form the felloe or rim 3 and is reinforced by a flanged disc. The disc is secured by rivets 7, 8, a spacing-ring 9 at the hub being recessed adjacent the holes 11 which receive the attachment bolts. In a modification, the disc 5 is flanged inside the circle of the rivets 8 to form a brake-drum.
Patent GB-536757-A (GB)
Title: Improvements in containers for holding and dispensing powdered, granular or like material
IPC: B65D83/06
Filed: 1940-07-23
Abstract: 536,757. Powder sprinklers. ATKINSON, Ltd., J. & E., and BARRETT, H. V. July 23, 1940, No. 12063. [Class 18] A container 1 for dispensing powder &c. is provided with dusting holes 7, which, when the container is pushed as far as possible into an outer container 2 in which it is a sliding fit, register with an aperture 8. A spring 3 in the space between the two containers tends to separate them and seal the holes 7. The containers may be made of wood, mouldable plastic material such as " Bakelite," R.T.M. &c. Reference has been directed by the Comptroller to Specification 13691/07, [Class 18].
Patent GB-768635-A (GB)
Title: Improvements in or relating to machines for drying pourable materials
IPC: F26B11/04
Filed: 1955-04-27
Abstract: 768,635. Separating solid materials. MAHRENHOLZ, A. April 27, 1955 [Oct. 30, 1954], No. 12186/55. Class 117 [Also in Group XIII] In apparatus for drying granular material having rotatable concentric drums 1, 2, 3, 4 secured to a common shaft and through which the material progresses in counter-current to hot gases 9 drawn through the drums by a fan 6 the velocity of the gases is such as to remove dust, chaff &c. from the material and the velocity may be regulated by a flap in the exhauster duct (not shown).
Patent GB-196817-A (GB)
Title: Improvements relating to electric incandescent lamps
IPC: F21V19/00
Filed: 1922-05-01
Abstract: 196,817. Lucas, H., and Egginton, W. H. May 1, 1922. Lantern doors and door fittings.-In head-lamps for motor vehicles &c., the front e and the reflector b of the lamp are secured to the casing by a bayonet-joint maintained by a blade spring d, which is adapted to press against the rear end of the casing c and is attached to a ring n rotatably secured to the back edge of the reflector.