baber/WOPTO huggingface dataset:
Patent GB-150574-A (GB)
Title: Improvements in or relating to agricultural rollers
IPC: A01B29/02
Filed: 1919-11-28
Abstract: 150,574. Thomas, T. L. Nov. 28, 1919. Rollers, land; manure and seed distributors; frames for implements; adjusting parts of implements. - In wide compound land rollers, corn drills, manure-distributors, &c. in which auxiliary end implements are adapted to be moved into position behind the main implement for passing through gateways &c., special means are provided for connecting the auxiliary implements to the main implement and for moving them into position. The draw-bar of each auxiliary implement 10, 11 is pivotally connected to a two-armed lever 14 pivoted on the frame of the main implement 1. The lever 14 is retained in either of two positions by the engagement of one of two recesses 15, 16 with a pin 7, and in both positions transmits the tractive power for moving the auxiliary implement. The throwing over of the lever by hand from one position to the other is facilitated by backing the main implement. The traction pole of the main implement is adjustable for attachment to different tractors. In a modification, the lever 14 has one arm only and two stop pins are provided.
Patent GB-1146131-A (GB)
Title: Process for the production of sodium phosphate
Inventor: ROBERT GERMAINE
IPC: C01B25/30
Filed: 1967-06-28
Abstract: 1,146,131. Sodium phosphate; calcium sulphate. U. KUHLMANN. 28 June, 1967 [1 July, 1966], No. 29771/67. Heading C1A. Sodium phosphate is manufactured by reacting phosphate rock (4CaO.P 2 O 5 ) with H 3 PO 4  or H 2 SO 4  or a mixture thereof, in the presence of sodium sulphate and at a temperature of 50- 95 C.; the mineral acid being used in a concentration equivalent to at least 38% P 2 O 5 . The sodium phosphate solution produced has a low SO 4 = content while the CaSO 4 .H 2 O (hemihydrate) which precipitates out is separated from the solution by filtration. Preferred mineral acid concentration corresponds to 38-40% P 2 O 5  while the temperature range is 55-80 C. 75% of ground Moroccan phosphate rock and 32À7% Na 2 SO 4  (powdered) are used as solid mixture reacted upon by 39% P 2 O 5  as H 3 PO 4  having free SO 4 = content of 1À8 gm./ 100 gm. P 2 O 5  at 60 C. in some examples. The SO 4 = content of the filtered solution was 0À96 gm./100 gm. P 2 O 5 .
Patent GB-701698-A (GB)
Title: Improvements in or relating to fluid dispensing apparatus
IPC: B60S5/04
Filed: 1950-12-05
Abstract: 701,698. Valves. BROOM & WADE, Ltd., ELWESS, E., and GITTINS, H. B. Nov. 29, 1951 (Dec. 5, 1950], No. 29796/50. Class 135 Fluid dispensing apparatus, e.g. for supplying compressed air to vehicle or aircraft tyres, comprises a supply line 27, Figs. 1 and 2, a delivery line 13, a dispensing valve 28 therebetween, pressure sensitive means, e.g. a diaphragm 39, subjected to delivery line pressure, a control spring 49 and regulating means for varying the tension of the spring, actuating mechanism for the ball closure member 30 of the valve and operative connections between the spring, diaphragm and mechanism so arranged that when delivery line pressure is less than that necessary to balance the spring, the valve is alternately opened by the spring and closed by the diaphragm as the delivery line pressure rise due to opening of the valve influences the diaphragm, whereby a series of small pulses of pressure fluid is allowed to pass along the delivery line until a balance is achieved. The actuating mechanism comprises a lever 47 pivoted at 56 and carrying a cam lever 50 and a plunger 29 for actuating the ball, a spring 55 urging the ball to open position. The operative connections comprise the lever 50 and a bell crank 41 having its longer arm 43 acted on by the spring and its shorter arm 44 by the diaphragm. Arm 43 carries a roller 46 coacting with cam surfaces 51, 52 on lever 50 and when spring 49 overcomes the pressure on the diaphragm a spring 53 urges surface 51 against roller 46 to pivot lever 47 anticlockwise thereby opening valve 28. The resulting pulse of pressure fluid acts on the diaphragm to pivot bell crank 41 anticlockwise causing roller 46 to ride onto surface 52, spring 53 then causing lever 47 to pivot clockwise to close the valve. The pressure on the diaphragm gradually drops causing the cycle of events to repeat until the pressure on the diaphragm and in the delivery line balances the spring. The regulating means for varying the spring tension comprises a drum 59 carrying cord 57 connected to the free end of the spring. The drum is urged by a spring 67 whereby a flange 68 engages a friction disc 69 to resist turning due to reaction of spring 49. The drum is mounted on a shaft 60 fitted with a collar 63 and handle 65, and the collar is connected to the drum by balls 73 secured in V- grooves 72, whereby rotation of handle 65 effects a cam-action to move the drum away from disc 69 prior to rotating the drum. Fluid supply to line 27 is controlled by a valve 17 seated by a spring 19. A lever 15, constituting a hook for a delivery line hose when not in use, acts on the valve 17 and opens same when the hose is removed.
Patent GB-280247-A (GB)
Title: Chewing gum
IPC: A23G4/06
Filed: 1927-11-08
Abstract: 280,247. Canadian Electro Products Co., Ltd., (Assignees of Matheson, H. W.). Nov. 8, 1926, [Convention date]. Sweetmeats.-In making chewing-gum a synthetic material resulting from the reaction between an aliphatic amyl ester and a saturated aliphatic aldehyde, in accordance with the process set out in Specification 280,246, [Class 2 (iii), Dyes &c.J, is used in place of, or together with, gum chicle or the like. The gummy or resinous substance formed by the reaction between the ester and the aldehyde is mixed with sugar and/or flavouring ingredients.
Patent GB-262124-A (GB)
Title: Protecting sheet for closet seats
IPC: A47K13/16
Filed: 1926-11-25
Abstract: 262,124. Zwack, R. Nov. 26, 1925. [Convention date]. Seat-guards.-A paper sheet is provided with a removable central portion a, Figs. 2 and 3, with perforations h to facilitate bending down or tearing off the corners and with perforations e terminating short of the central portion, and so spaced that tongues g, k can be bent down to protect male users.
Patent GB-1007904-A (GB)
Title: Articulated butt joint for overhead monorails
Inventor: BARTSCH SIEGFRIED
IPC: E01B25/16
Filed: 1964-07-28
Abstract: 1,007,904. Monorail. SCHARF, G.m.b.H. HEINRICH. July 28, 1964, No. 29976/64. Heading B7L. A joint between two monorails 10 comprises a quarter ball 13 on one rail 10 having its centre at the junction of the two lower rail flanges, and a cup 14 on the other rail, the upper flange of one rail having a hook 15 with recesses for a supporting chain 17 and the other rail having two plates 18 embracing hoak 15 and co-operating with hook parts 19, 20 to prevent the chain leaving one or other of the recesses.
Patent GB-998085-A (GB)
Title: Improvements in or relating to the manufacture of hollow containers of thermoplasticsynthetic materials
Inventor: GAUNT THOMAS NORMAN
IPC: B29C49/00
Filed: 1960-06-09
Abstract: 998,085. Moulding hollow articles from thermoplastic material. JOHN WADDING- TON Ltd. Sept. 8, 1961 [June 9, 1960], No. 30006/60 Divided out of 993,054. Heading B5A. A sheet of thermoplastic material, e.g. polythene, polyvinyl chloride, polycarbonate or cellulose acetate, at moulding temperature is folded longitudinally and fed to a divisible mould which is clamped against the sheet, and the sheet moulded by blowing or by vacuum. The mould is cooled by air or water, and may have holes for escape of air. The mould may move with the sheet and several moulds may be used for simultaneous moulding operations. Specification 875,819 also is referred to.
Patent GB-226665-A (GB)
Title: Improvements in or relating to means for locking the doors of railway carriages and other other vehicles
IPC: E05B65/42
Filed: 1923-11-29
Abstract: 226,665. Clarke, A. E. Nov. 29, 1923. Railway - carriage doors, fastening automatically. - Railwaycarriage doors a r e automatically locked by catches moved to the locking position by centrifugal means driven by a wheel of the carriage. A governor mechanism 1 is mounted in a U-shaped frame. 2 pivoted at 3 beneath the carriage and pressed by gravity and a spring 35 towards the carriage wheel 8. A wheel 10 to which the governor arms 9 are pivoted contacts the wheel 8 so that on rotation of the wheel the governor rises and lifts a U- shaped member 14 which acts through link 15 and arm 16 to rotate a rod 17, and by further arms 19, 21 to rotate a rod 22 carrying catches 25 for engaging recesses 30 in the doors. The catches are rounded and the ends pivoted and spring-controlled to allow shutting of a door after the catches are shot. A guard 31 is provided over each catch. The outward movement of the balls of the governor is limited by a sleeve 38 on the governor spindle 5, or a spring and adjustable, collar may be provided on the spindle so that the catches are not operated till a predetermined speed of the train is reached. Two governors are preferably provided on each coach to control respectively the doors on each side. Means may be provided such as a forked lever to raise the governor and hold the catches at one side of the carriage in operative position when desired.
Patent GB-1317304-A (GB)
Title: Process for the preparation of carbonyl and or alcoholic compounds
IPC: C07C45/74
Filed: 1970-06-22
Abstract: 1317304 Carbonyl compounds and alcohols VYSKUMNY USTAV PRE PETROCHEMIU 22 June 1970 [25 July 1969] 30102/70 Heading C2C A method of preparing an organic carbonyl compound and/or an alcohol comprises contacting a heated organic carbonyl compound, having a lower molecular weight than the desired product, in admixture with hydrogen, an inert gas or a mixture thereof, with a layered catalyst bed having at least two different layers, one of the said layers being capable of promoting aldolization, dehydration and hydrogenation or alternatively being capable of promoting aldolization and dehydration, and another layer consisting of a catalyst containing a metal selected from rhodium, ruthenium, nickel, and copper, or an oxide of the said metal with the optional inclusion of magnesium or chromium oxide, the said catalyst being capable of promoting hydrogenation or alternatively hydrogenation and condensation. Preferably, the lower organic carbonyl compound is in the vapour state and the contacting is effected at a temperature of from 150‹ to 450‹ C. and at elevated pressure. Preferably, the catalyst capable of promoting aldolization, dehydration and hydrogenation or alternatively being capable of promoting aldolization and dehydration, comprises a mixture of two or more oxides selected from the oxides of calcium, magnesium, barium, zinc, iron, and chromium. The catalyst bed may include a layer of inactive granular material in front of the catalyst layers in the direction of the flow of the gas stream. In examples: acetone is converted to isopropanol, methylisobutylketone, mesityloxide, methylisobutylcarbinol phorone and diisobutylketone; and acetaldehyde to n-butyraldehyde, crotonaldehyde and ethanol.
Patent GB-617947-A (GB)
Title: Improvements in packaging apparatus
IPC: B65B1/22
Filed: 1946-10-09
Abstract: 617,947. Packing comminuted substances. ROSE, A. G., KAY, J. A., and ROSE BROS. (GAINSBOROUGH), Ltd. Oct. 9, 1946, No. 30116. [Class 94 (i)] Apparatus for packaging comminuted substances in bags &c. wherein the packets are fed to the pockets of a rotatable member 13 which conveys the bags through a filling mechanism, comprises an arcuate package support 14 of channel section arranged below the pockets to embrace the packets 11, said support 14 being pivotally mounted on studs 17 extending from brackets 18 disposed transversely to the axis of rotation of the pocket member. Means for oscillating said package support 14 so as to vibrate the bases of the packets may consist of a rotatable eccentric 21, and the oscillations of the support may be varied. A slotted arm 26 is oscillated by the eccentric 21, an adjusting block 24 being slidably mounted theron, a pivoted link 23 connecting said block with the support 14, and the effective length of the arm 26 can be varied e.g., by engaging annular recesses 29 with a spring-loaded plunger 31. The support 14 extends over approximately half the periphery of the pocket member 13, and the packets 11 are discharged into a stationary package support 33 formed with an aperture 34 through which waste material is swept out into a chute 36.
Patent GB-1395494-A (GB)
Title: Vaporisers
IPC: F04F9/00
Filed: 1971-06-28
Abstract: 1395494 Electrical vaporizers BRITISH OXYGEN CO Ltd [trading as EDWARDS HIGH VACUUM INTERNATIONAL] 28 June 1972 [28 June 1971] 30147/71 Heading H5H A vaporizer for use in a vacuum pump comprises a support tube 2 down which liquid to be vaporized passes, a porous tubular resistance heating element 22 surrounding the lower end of tube 2, one end of element 22 being secured to tube 2 by a conductive end cap 28 and a nut 30 and the other end of the element 22 co-operating with an electrically conductive end cap 16 attached to a tube 14 which is slidably mounted on the support tube 2 by a plastic lined sleeve 10, 12, a spring, e.g. Belleville washer 8, being interposed between a collar 4 fixed to the tube 2 and a collar 6 fixed to sleeve 10, 12 so that the end caps 28, 16 are compressed against the ends of the heating element despite thermal expansion. Flexible graphite gaskets 24, 26 are interposed between the ends of the element 22 and the end caps 16, 28. Porous ceramic fibre layers 32 of insulation are in intimate contact with the inside of the tubular element. Current supply leads are clamped to tubes 2 and 14. A thin walled poorly thermally conductive sleeve 18 is connected between end cap 16 and a support flange 20. A flange 46 secured to flange 20 carries a casing 38 for the heating element and a surrounding radiation shield 52. A nozzle 40 for vapour and a drip tube 44 for condensed vapour are provided in the base of casing 38. Liquid supplied to tube 2 passes into chamber 34 defined by the heating element 22 through holes 36 and is vapourized on passage through the heating element 22 before emerging from nozzle 40.
Patent GB-1401846-A (GB)
Title: Process for pre-expanded rigid plastics foam material
IPC: B29C44/56
Filed: 1972-06-28
Abstract: 1401846 Modifying rigid plastics foams WASSER - SAND - FORSHUNG & VERTRIEBS GmbH 28 June 1972 [29 June 1971] 30172/72 Heading C3C A pre-expanded rigid plastics foam made of individual cellular particles is modified by simultaneously heating and compressing the foam and then subjecting the hot compressed foam to shock cooling (i.e. rapid and forced withdrawal of heat) under compression whereby the surfaces of the foam are hardened. In the example a foamed sheet is placed in a heating chamber 1, having a heating plate 2, where it is heated and pressed, the sheet is then placed in a cooling-chamber 4, having cooling plates, 5, where it is shock cooled under pressure.
Patent GB-1352616-A (GB)
Title: Date printer or stamper
IPC: G09F11/24
Filed: 1971-06-28
Abstract: 1352616 Date indicating SODECO-SOC DES COMPTEURS DE GENEVE 28 June 1971 [26 June 1970] 30247/71 Heading G3T [Also in Divisions B6 and G4] A date printer or stamper comprises four data drums, such as 1, carrying on their cylindrical surfaces equally spaced information relating to tens of day, single days, months and years. The drums are mounted independently on a common axle 5 and spaced by washers, not shown. An arm 10 is rotated by an electric motor 9 in a direction F1, so that a fork 11 of the arm 10 displaces, over an angle α, an axle v12 which, through a link 13 pin 14 and arm 15, causes a major arm 17 to swing through a limited arc about the axle 5. The arm 17 is subsequently returned to its original position by a spring, now shown. The arm 17 supports, on an axle 24, arms 18- 21, inter-connected by pins 22, 23, which are biased by a spiral spring, not shown, to rest on the drums 1. The drums are provided with cam surfaces, and in the case of the tens drum 1, studs, co-operating with the arms 18-21 to effect datechanging during the forward impulsion by the motor 9. The cam surfaces are so profiled as to adjust for the changes between 30 and 31 day months and to step only the 'tens' drum on a change of month.
Patent GB-1500151-A (GB)
Title: Replaceable insert for the drive sprocket of a track-type vehicle
IPC: B62D55/12
Filed: 1975-07-18
Abstract: 1500151 Endless track drive sprockets CATERPILLAR TRACTOR CO 18 July 1975 [6 Sept 1974] 30304/75 Heading B7H An endless track drive sprocket has U-shaped notches 19 between adjacent teeth 18 in which hardened metal inserts 20 are received, the inserts being retained by tabs 22 on the inserts which are received in notches 23 of the hub or by pins extending through the hub and engaging apertures in the tabs (Fig. 5, 7, not shown). Pairs of tabs may be provided at each end of the insert, or at the centre of its under side. The notches may be formed between the upper surface of the teeth and a removable plate attached thereto. Resilient cushioning members 27 may be provided between the hub and inserts.
Patent GB-818378-A (GB)
Title: Improvements in processes for the differential thermal treatment of glass objects
IPC: C03C23/00
Filed: 1955-10-25
Abstract: 818,378. Heat treatment of glass. MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE GOBAIN, CHAUNY & CIREY, S.A., DES. Oct. 25,1955 [Oct. 25, 1954; Jan. 26, 1955], No. 30539/55. Class 56. Glass articles are differentially thermally treated by influencing the part/parts which is/are to be differentiated from the remainder by means disposed at one side only of the part/ parts concerned. For example the unilateral means may be constituted by a screen spaced from or in contact with one face of the part to be differentiated, or the means may be a coat of paint or sheet or pellicle applied as in Specification 818,377.
Patent GB-1398322-A (GB)
Title: Polaroid corporation apparatus for spreading photographic processing liquids
IPC: G03B17/52
Filed: 1972-06-29
Abstract: 1398322 Photographic apparatus POLAROID CORP 29 June 1972 [7 July 1971]  30558/72 Heading G2X Photographic apparatus for spreading between a pair of sheet materials, constituting a film unit, a processing liquid which is contained or has been applied between the said sheet materials, the apparatus comprising: a pair of rollers 34, 36; a pair of bearing blocks 38, 40 between which the rollers are mounted for rotation in substantially parallel alignment, the bearing blocks being so formed as to establish a gap of a predetermined minimum spacing between the rollers and to permit at least one of the rollers to be displaced away from the other; resilient means (e.g. U-shaped springs 42, 44) for resiliently urging the displaceable roller towards the other roller at least when the spacing between the rollers is greater than or greater by a predetermined distance than the said predetermined minimum spacing; and a platform 46 for guiding the film unit towards the gap, the platform additionally including guiding means (e.g. tracks partially defined by walls 68, 70) for guiding the resilient means into its operative relationship with the rollers during assembly of the apparatus. As shown the apparatus is a self-processing camera (10) using diffusion transfer film units having a pod of processing liquid between the photosensitive and image-receiving sheets. Roller 36 is mounted in an elongate recess 60 and urged towards roller 34 by a pair of U-springs 44 mounted on walls 68, 70 of base-plate 72 of a platform 46 having a surface 122 for guiding film units between the rollers. A bar 48 clipped on to a bracket (126) on platform 46 is pushed by spring 50 against a bridge 104 so that fingers 140 prevent escape of processing liquid from the edge of the sheets. Bridge 104 also has a surface (120) which guides a leader on the film unit through the rollers and an exit (108) when a tab on unit extending through a channel (118) is pulled. The assembly (12) is held in the camera by a latch 144 which co-operates with a brace (146) which also serves in the usual manner to prevent premature advancement of a receiving sheet.
Patent GB-788763-A (GB)
Title: Improvements in or relating to the metallising of ceramics
IPC: C04B41/52
Filed: 1955-10-26
Abstract: A method of applying conductive solderable metal coatings to ceramics, e.g. to form electrodes for ceramic capacitors, comprises initially applying to the ceramic a flash coating of nickel from the pyrolysis of nickel carbonyl, then electroplating a flash coating of nickel over the first coating, and finally electroplating a solderable metal coating, of thickness greater than the added thickness of the flash coatings, over the electroplated nickel.  The solderable metal is preferably copper.
Patent GB-1431838-A (GB)
Title: Tube-changing device for a textile machine
IPC: D01H13/16
Filed: 1973-06-27
Abstract: 1431838 Stop motions in donning device with signal lamps ZINSER-TEXTILMASCHINEN GmbH 27 June 1973 [27 June 1972] 30620/73 Headings DID and DIF An automatic tube-changing device has a carrier 13 with an expanding tube gripper 15 and drive means to change the position of the gripper, a safety system responsive to changes in relative position between the carrier and tube gripper and/or tube 19 gripped by the gripper to control the drive means in the event of the tube encountering a resistance to its movement. Such relative movement is sensed by mounting the gripper on a resilient cushion 23 such that displacement of the gripper closes contact between a disc 24 on the gripper and on contact member 20 on the carrier. An alternative arrangement, Fig. 5 comprises rigidly mounting the gripper and providing a spring loaded member 24", which is displaced if the tube 19 is pushed upwards relative to the gripper, and co-operates with a contact 47. In a combination of these two embodiments, Fig. 3 (not shown) a radially divided disc can be bent into contact with a member 20, by displacement of the tube, in addition to its being movable as a unit with the gripper. Each gripper contact pair operates a common relay which disconnects or reverses the power source and also activates a signal lamp.