baber/WOPTO huggingface dataset:
Patent GB-767111-A (GB)
Title: Improvements in or relating to pottery kilns
Inventor: WAIGHT JOHN FRANCIS
IPC: F27B9/02
Filed: 1953-12-14
Abstract: 767,111. Continuous kilns. WEST MIDLANDS GAS BOARD. Dec. 10, 1954 [Dec. 14, 1953], No. 34710/53. Class 51 (2). In a pottery kiln wherein ware is passed through preheating, firing and cooling zones and which comprises work passages arranged in vertically-spaced layer formation, each layer consisting of horizontally-spaced passages, and heated by longitudinally disposed combustion chambers in the floor and roof of each layer of passages, burners introduce gaseous fuel into each combustion chamber with a deficiency of primary and/or secondary air, tertiary air being supplied to each chamber to complete combustion. The kiln shown comprises work passages 3 in the floor and roof of which are combustion chambers 4 subdivided by partitions 5. Ware is loaded on bats at kiln end 6 and pushed by hydraulic ram or the like to kiln end 10 passing in succession through preheat, firing and cooling zones 7, 8, 9. Burners 11 introduce gas and primary air into chambers 4, the burning gas being caused to flow along the chambers in the direction 15. The chambers 4 extend the full length of the kiln and secondary air is allowed to enter them under controlled conditions at kiln end 10, whilst tertiary air is supplied through pipes 12. The secondary air is preheated in the kiln cooling zone 9 and, if desired, a greater amount than is necessary may be so heated some being bled off before reaching the burners and used as preheated tertiary air. By varying the number of points of introduction of the tertiary air the temperature gradient in the work passages of the kiln may be changed. Cooling of the ware in zone 9 is effected by the introduction of air into the passages 3 at kiln end 10, this air being caused to flow in the direction 17 by draught applied to air flow controlled venting flues 13.
Patent GB-1025037-A (GB)
Title: Improvements in or relating to oilless anti-friction devices
IPC: E01D19/04
Filed: 1964-08-25
Abstract: 1,025,037. Bearings. FABREEKA PRODUCTS CO. Aug. 25, 1964 [Dec. 23, 1963], No. 34712/64. Addition to 956,949. Heading F2A. [Also in Divisions B5 and E1] A rectilinear-motion bearing as claimed in the parent Specification but having pads 21, 22, Figs. 1 and 6 (not shown), each of which has a layer 26, Fig. 5 (not shown), of P.T.F.E. attached thereto, the layers 26 being in sliding contact with each other.
Patent GB-984580-A (GB)
Title: Improvements in or relating to circuit arrangements for automatic telephone systems
IPC: H04M19/04
Filed: 1962-09-12
Abstract: 984,580. Automatic exchanges. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 12, 1962 [Sept. 15, 1961], No. 34837/62. Heading H4K. In a system in which a subscriber's set is provided with a keysender for sending audio frequencies indicative of a wanted subscriber's number, the microphone is kept disconneected until a relay is operated by a signal from the exchange, which signal is sent only when all the digits have been received. Closure of the hookswitch H connects up keysender 3 and connects winding R1 of relay R in place of the " tone ringer " 10. When all the digits have been received at the exchange, the receiver 2 reverts a " ringing signal " which brings up relay R over its winding R1. This disconnects keysender 3, connects up the microphone 5 and receiver 7 and completes a holding circuit for R through winding R2. A capacitative shunt across r may be provided to permit passage of " dialling " tone. A circuit which has a high impedance only when the supply to point 14 is removed may be connected in series with capacitor 13 to prevent dissipation of speech signals in signal receiver 9. This circuit may comprise a saturable reactor, a threshold circuit or a diode.
Patent GB-339089-A (GB)
Title: Process for making artificial threads, hairs, bands or the like from solutions of silk fibroin
IPC: D01F4/00
Filed: 1929-11-14
Abstract: 339,089. I. G. Farbenindustrie Akt.- Ges. Nov. 14, 1928, [Convention date]. Albuminoids, processes for making filaments and films from.-Artificial threads, hairs, bands, or the like are obtained by dissolving natural silk waste in ortho-phosphoric acid, coagulating the viscous solution thus obtained by means of an alkali metal salt solution, and stretching the coagulated material to produce the required form. The solution may be prepared at room temperature; it is stable for several hours at ordinary temperature and at 0 C. for more than a day. The viscosity may be varied by the addition of water, phosphoric acid, or glycerine. The precipitating bath may be an aqueous solution of an alkali salt of a strong acid, preferably in the presence of an alkali salt of a weak acid such as sodium acetate, or ammonium formate. The salt of a strong acid may be the neutral or acid salt. If desired, the bath may contain only an alkali salt of a weak acid. The thread may be subject to stretching in the precipitating bath, or after leaving it. In an example, silk waste is dissolved in ten times its weight of 85 per cent phosphoric acid. After standing for some time the solution is pressed through nozzles into a saturated solution of sodium chloride containing ammonium formate. The coagulated thread is strongly stretched, wound up, washed, and dried. The threads show good extensibility and lustre, and high strength.
Patent GB-367427-A (GB)
Title: Automatic mono-recording trap nest
IPC: A01K31/16
Filed: 1930-11-19
Abstract: 367,427. Recording trap-nests. HARRON, W. A., Beulah, Manitoba, Canada. Nov. 19, 1930, No. 34861. [Class 5 (ii).] A recording attachment for trap-nests comprises an exit structure attachable to the trapnest and provided with an opening and a door structure mounted to close said opening partially, a pair of vertically disposed bars rotatably mounted in said exit structure and located at the sides of said door structure, pins connecting the said bars and door structure disengageable by the opening of said door structure and hook members on said bars uniformly disposed to define a central area in said opening and adapted to receive recording resilient bands and to discharge said bands on to the neck of a hen upon the disengagement by the hen of the said pins. A trap-nest comprises three compartments the front one of which has a circular entrance opening 10 closable by means of a circular or rectangular sliding door 12. Lime is spread over the floor of the front compartment, which is separated from the second compartment, comprising the nest proper, by a partition 13 having an opening closed by a swinging door 17 to which is hinged a rod 20 passing through an eye 22 and holding open the door 12 : the door 17 is prevented from swinging forwardly by cleats 19. A sliding door 25 is provided to close an aperture 23 in a partition 14 separating the nest compartment from an exit compartment in which is mounted a perch 26 and which is closed by a detachable exit member comprising a door 33 a tongue 34 of which projects into an opening 32 in a door 31, both doors being hinged to a framework 30. A rod 39 hinged to door 31 passes through an eye 40 to retain door 25 in its open position. Two rods 41 are mounted on the framework 30 by means of pins 43 working in elongated slots 44. Hooks 47 on the rods 41 support resilient bands 48 and pins 45 coact with eyes 46 on the door 31. A pin 36 on the tongue 34 coacts with a slot 35 in the door 31. Attached to the resilient bands are stamped tags or marked hollow shells containing bells. A hen entering the nest cleans its feet in the first compartment, pushes against the door 17 so releasing the door 12 and closing the nest, and enters the nest compartment whence it passes into the exit compartment, jumps on to the perch 26, pushes against the door 31 so releasing the door 25, turning the rods 43 and so releasing the resilient bands on to its neck, and allowing the door 33 to fall forming an inclined ramp for the exit of the fowl. A series of trap-nests may be mounted in a unitary framework.
Patent GB-1092466-A (GB)
Title: A ladder and method of construction
Inventor: MARCH ADRIAN ANTHONY CECIL
IPC: E06C7/08
Filed: 1964-08-26
Abstract: 1,092,466. Ladders. W. C. YOUNGMAN Ltd. Aug. 25, 1965 [Aug. 26, 1964], No. 34940/ 64. Heading A6L. [Also in Division F2] A ladder comprises rungs 10, Fig. 1, the ends of which are engaged in sockets in the stile 2 and are secured by screws 18 which enter the rung from the outside and are eccentric to the rung. The rungs are metal tubes and each has a passage 16, Fig. 5, for the self-tapping screw 18 and may be open as shown in Fig. 5 or closed. There may be two diametrically opposite passages. The rung may comprise two tread parts 12, Fig. 8, connected by a web 32. The passage 16 may be in a rib on the outside of the rung Figs. 17, 18 (not shown). The rung may be secured to the style by a channelshaped stud, Figs. 9, 10 (not shown). The stiles may be metal and the rungs have shoulders engaging the outer surface of the stile, Fig. 16  (not shown).
Patent GB-447924-A (GB)
Title: Improvements in electrical contact devices for locks
IPC: E05B17/22
Filed: 1934-12-06
Abstract: 447,924. Door locks. PLATIN, G. A., 10, Gamla Kungsgatan, Kalmar, Sweden. Dec. 6, 1934, No. 35092. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 8, 1935.] Addition to 439,137. [Class 44] A door lock of the kind described in the parent Specification comprises a bolt 147, which is pivoted to a lever 146, connected to the spindle of the inside handle, and is connected by a link 50 to a lever 149 on the outside handle, stops 52, 53 co-operating with the levers and link. To enable the door to be opened from outside in an emergency a squared end is formed on the spindle of the inner handle for actuation by a squaresocketed key. A movable abutment in the door post cooperating with the bolt for actuating an electric light switch also is modified so as to be capable of adjustment in such a manner that when the door is open the abutment has one position of rest in which it closes the electric circuit and remains unaffected when the door is closed from the inside, and has a second position in which it keeps the circuit broken until it is actuated by the bolt on closing the door from the inside. For this purpose an abutment 65, Fig. 4, hinged about a vertical spindle 66 is urged to the front of the keeper by a spring 67 to allow a switch 72 to close as the door is opened. The abutment is also subject to a stronger spring 77 which urges it in the opposite direction unless prevented by a cam 79 controllable by a set screw 80. By setting the cam to the position shown in Fig. 6 the abutment 65 tends to assume the position there shown and the switch is only closed when a bevelled end on the bolt engages behind the abutment and urges it towards the " switch closed position. The Specification as open to inspection under Sect. 91 comprises also the whole of the subjectmatter now in the parent Specification and, in addition, the following subject-matter. An outer handle 20, Fig. 25 (Cancelled), actuates a sliding bolt and mounted on the same spindle is an inner handle 22 having an arm 23 co-operating with a pivoted abutment member 24 which actuates a switch. The arm is normally retained in its horizontal position by a spring 26. Movement of the outer handle does not raise the arm 23 on account of a pin-and-slot connection 25 and as the door is opened the abutment 24 moves forward to close the switch. When the inner handle is actuated the outer handle is also moved to actuate the bolt and at the same time the arm 23 is raised to clear the abutment 24 and then is engaged behind it so that the outer handle can no longer effect the unlocking of the door and the switch remains closed. This subject-matter does not appear in the Specification as accepted.
Patent GB-367789-A (GB)
Title: Method of manufacturing long distance electric conductors
IPC: H01B11/00
Filed: 1930-11-21
Abstract: 367,789. Cables. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 21, 1930, No. 35107. Convention date, Nov. 23, 1929. Drawings to Specification. [Class 36.] To reduce the capacity differences between the air-spaced conductors of a group of communication conductors, the paper-spacing cords are applied with different pitches on adjacent portions of conductors so that the cord of one conductor cannot press into the paper jacket of an adjacent conductor. The spacing cord of one conductor of a pair or of two opposite conductors in a quad may be applied with a uniform pitch which differs from that of the cord of the remaining conductor or conductors. The cord may be applied to the conductors with an irregular pitch or with a varying pitch which alternates slowly or in rapid changes between definite values, whilst to a predetermined number of conductors of a group two parallel cords may be applied. To compensate for the increase in capacity of certain conductors due to decrease in the cord pitch, the outer diameter of these insulated conductors may be increased.
Patent GB-411823-A (GB)
Title: Improvements relating to steam generating and superheating installations
IPC: F22G7/14
Filed: 1932-12-12
Abstract: 411,823. Steam superheaters ; watertube steam boilers. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.- (Assignees of Gordon, C. W. ; 8507, Northcote Avenue, Munster, Indiana, U.S.A.) Dec. 12, 1932, No. 35225. Convention date, Dec. 11, 1931. [Classes 123 (ii) and 123 (iii).] Steam boilers having two furnace gas paths 20, 20<a> in parallel and a superheater with most of its heating surface in one of the paths, such path accommodating an amount 16<a> of steam generating surface not greater than that in the other path, are so proportioned that the maximum steam temperature occurs at the calculated maximum load on the boiler and when the gas paths have equal rates of flow therethrough. On a fall in load, the steam delivery temperature is kept up by adjusting dampers 22, 22<a> so as to increase the proportion of gases flowing through path 20<a> having the larger superheating surface. The two superheating portions may be in series as shown or in parallel. In another boiler arrangement, the two gas paths are formed by two partitions perpendicular to the boiler drum axes which divide the flue into a central space and two outer passages operated as a unit. A modified installation comprises a furnace with one or more water-tube walls and radiant type superheaters arranged along the front and rear walls succeeded in series by two connectively heated superheaters, the relative proportions of furnace gases flowing over these being regulated by dampers. Excessive steam temperature occasioned by cutting out an air or feedwater heater may be avoided by increasing the proportion of gases passing over the smaller superheating surface.
Patent GB-1401226-A (GB)
Title: Reagent reservoir and stirring apparatus
IPC: G01N35/02
Filed: 1972-07-27
Abstract: 1401226 Magnetic stirrers SHERWOOD MEDICAL INDUSTRIES INC 27 July 1972 [30 July 1971] 35249/72 Heading B1C [Also in Division F1] In an apparatus for testing a succession of samples with a reagent, the latter is stored in a frusto-conical container 104 received in a recess 102 and having a magnetic stirring bar 106 rotated by an external permanent magnet 116. When the dip tube of air automatic pipette (see Figs 5, 6 and Division Fl) is inserted into the container, a cam acting in a follower 136 causes the lever 122 to pivot about a stud 118 to interpose a magnetic shield 124 between the magnets 106, 116, and to move a magnet 126 into a recess 132 where it draws the magnetic stirrer 106 to the side of the container clear of the dip tube. The stirrer may be coated with polytetrafluoroethylene and the container may be heated.
Patent GB-436996-A (GB)
Title: Improvements in oil fuel burning apparatus, more particularly for domestic use
IPC: F23C99/00
Filed: 1934-12-07
Abstract: 436,996. Hydraulic seal safety apparatus. ALVA, Ltd., 29, Martin Lane, Cannon Street, London. Dec. 7, 1934, Nos. 35275, 35276, and 35277. Convention dates, Dec. 7, 1933, May 8, 1934, and Oct. 27, 1934. [Class 135] [See also Groups XI and XII] In a heavy oil burning apparatus shown in Fig. 1, the fuel is supplied from a reservoir E attached to the flue pipe through a pipe D fitted with control taps G<1>, G<2> to a compartment 1 in a trap K and passes under a depending partition H to a compartment 2 from which it escapes through a drip pipe C to a stove casing A containing an incandescent mass of coal or coke. The pipe C is connected to the compartment 2 at such a level that under normal operation an air space I is formed between the fuel surface and the top of the compartment. If an excess pressure occurs in the drip pipe the fuel is forced back to the compartment 1 and overflows into a compartment 3 in the trap. In a construction suitable for boilers for central heating, the fuel is delivered through control taps R<1>-R<4>, Fig. 5, to a number of compartments in a circular vessel 11 and escapes through drip pipes T<1>-T<4> covered by an inverted vessel 7. If the oil level rises excessively the fuel overflows into a surrounding vessel 31. The oil supply to the drip pipes may be regulated by a tap comprising two plunger blocks R, S, Fig. 12, adjusted by a left- and right-handed threaded rod U above the nozzle opening Z.
Patent GB-522256-A (GB)
Title: Improvements relating to wing-nuts and wing-headed bolts
IPC: F16B37/16
Filed: 1938-12-03
Abstract: 522,256. Nuts, bolts &c. HEELEY & PEART, Ltd., and ALLDAY, G. W. Dec. 3, 1938, No. 35277. [Class 80 (i)] Wing-nuts or wing-headed bolts have the opposite faces of the wings concave at 3. The wings may be of such shape that the recesses are similar in shape to that of the thumb or finger.
Patent GB-356840-A (GB)
Abstract: 356,840. Franking-machines. POSTAGE METERS & MACHINES CO., 723, Pacific Street, Stamford, Connecticut, U.S.A. -(Assignees of Wheeler, W. H. ; Ogden, J. W. ; and Rouan, F. J. ; Stamford, Connecticut, U.S.A.) June 21, 1930, No. 19026. Convention date, April 26. [Classes 100 (i) and 100 (ii).] Feeding webs.-An attachment for a postagemeter machine to adapt the machine for printing on a gummed paper strip is provided with means whereby the strip can be fed into position for printing and the printed portion cut off for attachment to bulky mail matter. As applied to the machine described in Specification 332,918, [Class 100 (ii), Printing processes &c.], the device comprises a baseplate 1, Figs. 2 and 4, having a flange 1h and a clip 1j whereby it can be attached to the letter-supporting plate 112 of the machine. An opening 1a is cut in the plate 1 to coincide with the opening in the plate 112 in which the printing and impression rollers 16, 111 coact. The strip S is fed from a roll P removably mounted on a spindle 4a carried by the plate 1, an adjustable spring plate 5a being provided to prevent free turning of the roll. A flanged plate 2 serves to guide the strip to the opening la where its edges are engaged by upper and lower grind- :ng strips 3, 3a. Beyond the spring 1a is situated the severing device 10. The strip is fed into position for printing by means of a freely mounted roller 7 and a roller 6 turned by a knob 6b on the spindle 6a, and during the printing operation is moved forward the width of one impression by the members 16, 111. After the printing operation, a slide member 8 mounted on the plate l is moved to the right by a fingerpiece 8f, Fig. 2, and a rack 8d thereon engages a pinion 6d on the spindle 6a sothat the printed part of the strip is fed beyond the knife 10, which is then operated to sever the printed part. The rack 8d passes out of engagement with the pinion 6d on its forward movement, and on the backward movenent, under the action of a spring 9, at re-engages the pinion so as to retract the strip S into printing position. Cutting-apparatus.-The strip-severing apparatus comprises a block 10, Figs. 2 and 11, with a threaded opening partly cut away at 10a, and a threaded rod 11 mounted in the opening. Adjacent to the outaway part 10a the rod 11 is cut away to a semicylindrical form, and the edges of the flat surface 11a so formed coact with the inner edge of an inclined slot 10b in the block 10 to form a shearing device for cutting the strip which is passed through the slot 10b. The rod 11 is operated at the required times by the engagement of arms 12, 12a on the end thereof with a slot 8g in the member 8.
Patent GB-498106-A (GB)
Title: Container provided with a flexible diaphragm for dispensing materials
IPC: B65D83/00
Filed: 1937-12-24
Abstract: 498,106. Collapsable containers. BERGERIOUX, R. Dec. 24, 1937, Nos. 35818, 35819, and 35820. Convention dates, Jan. 6, May 14, and May 26. [Classes 66 and 125 (ii)] A container for dispensing materials comprises a substantially rigid part 1, Figs. 2, 4, 5, for example, provided with a discharge nozzle 2, and a flexible diaphragm 3 which is deformable upwardly by finger pressure to cause the contents to be extruded through the nozzle, the diaphragm comprising a central outwardly or downwardly convex portion, which may have a flattened or re-entrant central part, and an annular concave indentation adjacent to the peripheral edge which is secured to the lower or bottom edge of the rigid portion. The diaphragm may be brought to the form shown at b by pressing it between dies before attachment, or it may be attached lying closely against part 1 as shown at a and brought to form b by liquid or pneumatic means or by filling the container with the ordinary contents under pressure ; during this operation, a die or other means may be employed as a support for the diaphragm, and suction may be applied to the undersurface thereof. One form of device adapted particularly for use with the container of Fig. 4 is shown in Fig. 6 ; this comprises a support 11 enclosing an adjustable mandrel formed with a die surface 15, the container being held in place by a clamping ring 13. Air trapped between the die and the expanding diaphragm can escape through an opening 16. Fig. 7 shows an adjustable form of spring-supported die 18, for use with the construction of Fig. 5, the spring becoming compressed as the diaphragm expands. The part of the (expanded) diaphragm which lies against the inner wall of the rigid part may be reinforced or protected by suitable means such as the socket 9, Figs. 2 and 5. The containers may be wholly or partially enclosed in outer casings which may carry or serve as a stopper for the delivery nozzle 2, or they may serve as refill cartridges for reservoir containers for paint, paste, mustard, &c. Specifications 11102/04 and 231,085, [both in Class 11], are referred to.
Patent GB-302653-A (GB)
Title: Improvements in internal combustion engines of the sleeve valve type
IPC: F01L5/06
Filed: 1928-12-05
Abstract: 302,653. British Continental Motors, Ltd., (Assignees of Niven, A. M.). Dec. 19, 1927, [Convention date]. Cylinders, ports and passages of, and cooling. - In a sleeve-valve engine, the cylinders are provided with inlet ports 12 communicating with chambers 14, and with exhaust ports 13 communicating with passages 17 leading to chambers 20, 21, which are separated by a partition 19 and provided with outlets 22, 23 united in a common exhaust pipe 24. The passages 17 are bounded by cooling-chambers 28, which are shaped to direct the exhaust gases towards the outlets 22, 23. A partition 16 separates the inlet and exhaust chambers.