baber/WOPTO huggingface dataset:
Patent GB-738461-A (GB)
Title: Continuous screw press for plastic compositions
IPC: B29C48/64
Filed: 1953-10-08
Abstract: 738,461. Kneading and mixing appliances. KULGEN, J., HILGER, F., HILGER, H., and HILGER, P., [trading as ECK & SOHNE, J.]. Oct. 8, 1953 [July 30, 1953], No. 27729/53. Class 86. [Also in Group V] The kneading effect in a screw-press provided with a feed-section 14, a kneading section 15 and an output section 17 is varied by fitting the output section with a cylindrical shaft 28 and grooved box 22 which may be replaced by one having a different grooving so as to change the output volume and thus the amount of kneading. The housing 1 of the press has annular heating or cooling chambers 3, 4, 5 and the material is kneaded in chambers 15 where the shaft 12 is oval in cross-section, Fig. 2. In a modification, the press may have two screws and in this case the interchangeable box 22 has two bores. The shafts may turn in the same or opposite directions and their threads may mesh or only touch.
Patent GB-188902-A (GB)
Title: Improvements relating to garden and like rollers
IPC: A01B29/02
Filed: 1921-10-19
Abstract: 188,902. Glover, J. A. F., and Burn, L. Oct. 19, 1921. Rollers, garden.-A garden roller comprises a hollow cylindrical metal drum a provided at its ends with internal sleeves x over which are fitted end-pieces b, detachably held against the drum by nuts g, which are screwed externally to the hollow axle f. The arms c of the handle are provided with holes acting as bearings for setscrews engaging the axle. The roller is filled with earth, stones, concrete, &c.
Patent GB-950573-A (GB)
Title: Improvements in the preparation of steroid compounds
Inventor: BERG RUDOLPH GERHARD
IPC: C07J5/00
Filed: 1962-07-19
Abstract: 3-keto -D 4- androstene and 3-keto -D 4- pregnene compounds are obtained by reacting a 3b -hydroxy-5a , 6b -dichloroandrostane or a 3b -hydroxy-5a , 6b -dichloropregnane with at least 1% by weight of lithium chloride, based on the weight of steroid substrate used, in a solvent of the group consisting of dimethylformamide, diethylformamide, or dimethylacetamide at a temperature of at least 50 DEG C.  The 3b -hydroxy -5a , 6b -dichloro androstane or pregnane starting compounds are obtained by treating with chlorine a 3b -hydroxy -D 5- androstene or pregnene to obtain the corresponding 5a , 6b -dichloro compound and hydrolysing the acylate group to form the 3b -hydroxy compound.
Patent GB-1280353-A (GB)
Title: Inflatable boat
Inventor: EDWARDS DAVID VERNON
IPC: B63B7/08
Filed: 1969-06-02
Abstract: 1280353 Inflatable boats D V EDWARDS 2 June 1970 [2 June 1969] 27765/69 Heading B7A An inflatable boat has side tubes 10 interconnected by a flexible floor 15 and three inflatable thwarts 12, 13, 14; a non-inflatable flexible stern 20; and an integral re-inforcing member which provides a rigid transom 21, and hinged curved floor sections 16, 17 which tuck into pockets in the boat fabric. Skegs (26) may be formed on the edges of sections 16, 17. A bow dodger 19 interconnects the forward ends of the tubes, but according to a modification (not shown) the sides and bow are constituted by a U tube with overhanging tail cones at the stern.
Patent GB-828167-A (GB)
Title: Improvements in door closing devices
IPC: E05B17/00
Filed: 1956-09-11
Abstract: 828,167. Latches; door operating appliances. WILKS, G. L., and ROVER CO. Ltd. Nov. 14, 1957 [Sept. 11, 1956], No. 27785/56. Addition to 795,521. Classes 44 and 65(1) Door closing mechanism includes a locking jaw 1 having an open mouthed slot 7 for co-operating with a latch pin 2, spring- urged toggle mechanism movable through a dead centre position as a result of engagement of the jaw 1 with the latch pin 2 during closing movement of the door to produce rotational movement of the locking jaw under the action of the toggle spring 15 to move the door into its fully closed position, and a toothed ratchet 20 engaging the toggle mechanism directly to hold the door closed but releasable by the door-opening handle 5 from engagement with the toggle mechanism when the handle is moved in the appropriate direction. As shown, the toggle mechanism comprises an upper toggle member 11 which carries the jaw 1 and is fulcrumed in a block 12 and in a plate 14 bearing on the spring 15, the lower end of the spring being fulcrumed in a bearing 18. The ratchet 20 which pivots about a fixed pin engages the lower knife-edge of the toggle member 11 to hold the latter as the mechanism passes over the dead centre position during the closing movement of the door. A spring- loaded bolt 24 is projected into the path of a shoulder 27 on the jaw 1, when the latter has moved to its locking position and is withdrawn from the shoulder 27 by angular movement of the handle to open the door. A spindle 30, which carries the handle 5, also carries a lever 31 for disengaging the ratchet 20 from the member 11, and a lever 32 which engages the plate 14 to move the toggle mechanism over dead centre and disengage the jaw 1 from the pin 2 upon a pull on the handle 5. The door may be opened by an interior handle 6 (Fig. 2, not shown), which may also be used to deadlock the outer handle 5.
Patent GB-395328-A (GB)
Title: Improvements relating to electric remote control systems
IPC: H03J1/18
Filed: 1931-10-07
Abstract: 395,328. Wireless receiving-apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Garrett, C. R. ; 1103, Belmont Avenue, Westmont, New Jersey, U.S.A.) Oct. 7, 1931, No. 27889. Convention date, Oct. 7, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] In a remote control system, more particularly for operating the tuning means of a wireless set, of the type employing at the transmitter and receiver a dynamo-electric machine having a polyphase armature adjustable relatively to an alternating field, locking means are provided at the transmitter to render the transmitter inoperative when the system is de-energized. The locking means prevent operation of the transmitter to destroy synchronism when the system is de-energized. As shown in Fig. 2, the tuning means of a wireless set 5 are adjusted by a receiver motor 19 under the control of a transmitter 18, the fields 4 of the machines together with the set 5 being supplied from A.C. mains 21 when the controls witch 22 is closed. The transmitter shaft is provided with a notched wheel 34 with which co-operates a spring-controlled detent 31, which is withdrawn by electromagnet 30 to free the transmitter when the control switch 22 is operated. The wireless set may also be provided with a remote volume control 35. Fig. 1 shows the transmitting apparatus arranged behind a panel 11 having a sight aperture for the indicator drum 8 which is driven through reduction gearing comprising a cord, from the shaft 14 of the transmitter 18 which is manually adjusted by the knob 13. The tuning means at the set may be driven through reduction gearing having the same or a different ratio from that of the transmitter gearing.
Patent GB-707478-A (GB)
Title: Improvements in or relating to co-precipitates comprising colloidal silica
IPC: C01B33/18
Filed: 1951-11-28
Abstract: Colloidal silica, redispersible in alkaline aqueous solutions is prepared by mixing with an alkaline silica aquasol an organic polycationic substance having at least 2 amino groups, soluble in neutral and alkaline water solutions, adding sulphuric, hydrochloric, phosphoric, formic or acetic acid in an amount sufficient to coprecipitate the organic polycationic substance and colloidal silica, and separating the precipitate from the liquid phase.  The polycationic substance is preferably an organic polyamine having a molecular weight above 500 such as gelatin, which is preferred, casein, zein and polyvinyl pyridine. The alkaline silica aquasol may contain 0.01 to 35 per cent. by weight silica; 1 part by weight of gelatin may be added for every 1 to 60 parts by weight of silica solids in the aquasol.  After the addition of the acid, which should not reduce the pH below 2, the precipitates are filtered and preferably worked to remove electrolytes; they may then be dried. The resulting solids may be redispersed in alkaline aqueous solutions in amounts of 0.01 per cent. 15 per cent. by weight, the preferred final pH being 8.5 to 10.5.  Suitable alkaline solutions contain alkali metal or ammonium hydroxide, alkali metal silicates, or organic bases such as triethanolamine or trimethyl benzyl ammonium hydroxide.  The redispersed sols may be used to treat textiles or paper.  The process may also be employed to remove silica from dilute aquasol where recovery by evaporation is uneconomical, or to concentrate or purify sols, the silica being coprecipitated with the organic polycationic substance in each case and the resulting coprecipitate redispersed in the desired concentration and purity. Finally gelatin in the redispersed sol may be removed if desired by precipitating the gelatin with tannic acid.  According to examples, a silica gel prepared from sodium silicate solution and sulphuric acid is drained, crushed, washed and treated with dilute caustic soda. The solution is drained off and the gel lumps heated with steam at 215 p.s.i. pressure.  The resulting sol having a pH of 9.5 is concentrated to 35 per cent. silica content and added to a 5 per cent. solution of gelatin.  Acetic acid is added to reduce the pH to 4.5 and the resulting precipitate is separated, washed with water and methanol and dried.  The resulting powder containing 4 parts silica per part of gelatin produces a stable sol in addition to a sodium hydroxide solution having a pH of 9.5.  2 similar to 1 except that hydrochloric acid is the coprecipitant and the final dry powder has 50 parts of silica per part of gelatin.  A stable sol is produced in caustic soda solution with a final pH of 10.  Specifications 645,703, 649,897 and 660,593 are referred to.
Patent GB-1126936-A (GB)
Title: Baling machines
Inventor: CORBETT GEORGE LAWRENCE
IPC: B30B9/30
Filed: 1966-06-23
Abstract: 1,126,936. Baling machines. PORTABLE BALERS Ltd. 30 May, 1967 [23 June, 1966; 28 Feb., 1967 (4)], Nos. 28112/66, 9413/67, 9414/67, 9415/67 and 9417/67. Heading B5F. A truck 11 having three sides 112, 112<SP>1</SP>, 113 is mounted on sprung wheels 115, (115<SP>1</SP>) for movement into and out of a baling machine 10 having runways 104 for the truck wheels bounded by reinforcements 105 which take the load on the bottom of the truck when the wheel springs 12 are compressed during pressing. The rear wheels (115<SP>1</SP>) of the truck may be caster wheels. Guide rollers 26 are mounted in -slots 261 in the sides of the machine casing. At least one side 112<SP>1</SP> of the truck 11 is hinged and held closed by a pedal operated catch 20, (22), Fig. 7 (not shown). Pivoted loading shoots 101, 102 are provided at the front and rear of the machine. Drop catches 28 hold the truck in position in the machine. Guide channels 111a and slits 113<SP>1</SP> are provided for bale tying purposes.
Patent GB-1381201-A (GB)
Title: Boilers
IPC: F24H1/38
Filed: 1972-06-15
Abstract: 1381201 Sectional bodies BEONDU AG 15 June 1972 28130/72 Heading F4A A sectional boiler composed of separately and corelessly cast aluminium alloy elements has at least one fire duct bounded by boiler elements 2 and 3 and at least one water duct bounded by boiler elements 1 and 4, the elements being interconnected by welding and the elements 2 and 3 being formed to define on one side a component part of the fire duct and on the other side a component part of a water duct. Cast integrally with the element 2 is a stub 7 extending across the fire duct to provide a water connection with a ring 11 formed on the element 3 embracing and welded to the end of stub 7. Heat transfer projections 8 are provided on the respective fire duet walls.
Patent GB-285129-A (GB)
Title: Improvements in the manufacture and production of electrodes, welding rods, and the like for use in arc welding and depositing metal
IPC: B23K35/02
Filed: 1926-11-09
Abstract: 285,129. Turner, B., and Ferro-Arc Welding Co., Ltd. Nov. 9, 1926. Uniting by fusion.-A twin-electrode for use with a three-phase alternating current for welding or depositing metal by the electric arc process and consisting of two rods or wires A bound together by a string of asbestos yarn or other insulating material B wound round and between the rods or wires as described in Specification 285,128, is wound so as to leave spaces between successive turns, the spaces being filled with a flux or filling material C. The flux, which is applied so as to leave a substantially even surface on the outside of the electrode, may consist of asbestos pow- . der, fluorspar, chalk, lime, china clay or sodium carbonate or mixtures thereof together with a binding agent such as silicate of soda. One example of a flux mixture consists of 85 parts of blue asbestos powder, 10 parts of china clay, 5 parts of sodium carbonate together with 10 parts of sodium silicate made into a paste with water. A second example consists of 70 parts of fluorspar, 25 parts of chalk, 5 parts of sodium carbonate, and 10 parts of sodium silicate.
Patent GB-520685-A (GB)
Title: Improvements in and relating to mills for grinding paints, enamels, inks and other viscous substances
IPC: B02C4/22
Filed: 1938-09-28
Abstract: 520,685. Roller-and-breast mills. FORSYTH, W. T., and SMITH, S. R. N. Sept. 28, 1938, No. 28183. [Class 59] A mill for grinding paints &c. is provided with a breast bar comprising two relatively displace-. able grinding blocks 2, 3, recessed at 4 between the adjacent surfaces to form a channel closed at the sides and opening into an housing 6. The lower block 3 is pressed against the roller 1 with a grinding pressure per unit area greater than that on the block 2. The material ground between block 2 and roller 1 passes into the recess 4 and is filtered either by filtering material housed in an enlargement in the recess 4 or by a filter formed by a perforated housing-cover 7 having the perforations covered by a pad 10 and a gauze 9, the filtered material being discharged through a shoot 12.
Patent GB-448423-A (GB)
Title: Improvements in and relating to compositions for use in applying hard facing material to metal articles
Filed: 1934-10-03
Abstract: A hard sintered composition, for use in facing articles subject to wear and abrasion, comprises 30-65 per cent of iron, 2-30 per cent of tungsten, 3,5-6,5 per cent of carbon, and also chromium and molybdenum with or without 2-5 per cent of nickel, the amount of chromium, molybdenum, and tungsten taken together being 25-60 per cent and the ratio of molybdenum to chromium being between 1 : 2 and 2 : 3.  At least one of the three ingredients tungsten, molybdenum, and chromium is preferably in the form of a ferro-alloy which preferably has a high carbon content.  Tungsten and carbon may also be added in the form of tungsten carbide and additional carbon preferably in the form of lam<\>ap black may be added.  The composition may contain a small amount, e.g. about 0,2 per cent, of calcium boride and also small amounts of other elements, e.g. between about 2 and 3 per cent of silicon, which are present in the commercial compositions and forms of the essential ingredients.  Rods of the composition, from which it may be deposited on articles either by electric arc or gas torch welding, are formed by mixing together the finely divided constituents, e.g. by ball-milling for about 3 hours, and then adding 2 per cent of paraffin as a binder.  The mixture is pressed in dies into the form of rods which are dried and heated to sintering temperature in a hydrogen furnace.  The heating may be effected at from 1150-1250 DEG  C. for from 3- 1/2 hours, preferably for about 1 hour at 1200 DEG  C.
Patent GB-150564-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D13/28
Filed: 1919-11-14
Abstract: 150,564. Klotzmann, K.. Nov. 14, 1919. Clutches, friction.-In cone friction clutches, an intermediate cone on one shaft is clutched externally and internally by oppositely-moved cones turning with the other shaft. In the form shown in Fig. 3, the cone 4, which may be adjustably connected by bolt or screw means to a part 2 secured to the shaft 1, is clutched by cones 5, 6 carried adjustably by screwed bolts 9 carrying collars 17 with toothed faces adapted to be adjustably engaged by the toothed faces of levers 13 connected by links to a sleeve 15 on the shaft 11 which may be rotated by cam means carried by the axially-moving clutch collar 16 to rotate the bolts and engage the clutch. The bolts 9 are movable rotatably but not axially in a member 12 secured to the shaft 11. In the modification shown in Fig. 5, the cones 5, 6 are carried on bolts 9 provided with stop ends 9<b> and are operated by bellcrank levers 19 pivoted on one cone and connected by spring links 21 to the other .cone by adjustable means such as sleeves 22 with external and internal threads of different pitch engaging the cone and the pivots 21a of the links, respectively. In a modification, Fig. 11, a three-armed lever 19 pivoted on the part 12 is used and is connected by spring links 21 to each of the cones 5, 6. In a further modification, the cones 5, 6 are operated by toggle links which are operated from the clutch collar 16 by helical or curved spring links. Fig. 20 shows a form in which bell-crank levers 35 are pivoted on the cone 5 and connected by links 34 to the cone 6, the arrangement being such that the cones 5, 6 engage successively with the cone 4 under spring action, the toggles being in the straight-line or locked position during disengagement so as to prevent accidental re-engagement. The stop-ends 9<b> on the bolts 9 are adjusted, Fig. 9, by providing a central pin 24 with screw-threads engaging respectively with the bolt 9 at its upper end and a stop 9<b> at its lower end, the upper stop 9<b> loosely engaging the pin and both stops being squared to engage the bolt 9. Rotation of the pin by a tool fitting its squared end moves the stops 9<b> simultaneously in opposite directions. In a modification, the stops may be fixed to the pin ends, the pin being divided centrally to allow separation but not relative rotation of the pin parts, which are separately screwed within the bolt 9. The cones 5, 6 may be carried by separate bolts in the member 12 or may slide on the exterior of a drum formed on the member 12.
Patent GB-748993-A (GB)
Title: Improvements relating to television
IPC: H04B10/11
Filed: 1955-04-04
Abstract: 748,993. Signaling by infra-red rays. TAYLOR, H. C. April 4, 1955, No. 28388/51. Drawings to Specification. Class 40 (3). Television signals are conveyed between a transmitter and receiver as modulations of a beam of infra-red rays. At the transmitter a beam of white light from a projection lamp is filtered to extract only the infra-red component, and the modulation is effected by passing television signals from a conventional camera through a coil of copper wire located in the path of the infra-red rays. At the receiver the infra-red rays are received by an arrangement of lenses and filters and allowed to impinge a plate of barium and tungsten which, it is stated, vibrates in response thereto and derives the television signal for application to the cathode-ray tube of a conventional receiver.
Patent GB-1049394-A (GB)
Title: Roundabout
IPC: A63G1/24
Filed: 1963-07-18
Abstract: 1,049,394. Roundabouts. M. CHEREAU. July 18,1963 [July 31, 1962; Feb. 20, 1963], No. 28465/63. Heading A6M. A roundabout comprises cars mounted on radial arms and rolling on a wheel or wheels around an undulating track, characterized in that the cars are pivoted about a horizontal axis in relation to the arms, and cylinders are interposed to alter the relative position. One embodiment, Figs. 1 and 2, employs a pair of separate arms 3b, 3c, vertically movable on pivots on a central driving hub 4 and having wheels 9a, 9b mounted thereon for following an undulating track 2. The car 1 is supported by a bar 7a pivotally mounted in bearings 6 in the ends of the arms 3b, 3c and by an hydraulic cylinder 10 which tilts the car under the control of the passenger or of a man in the control cab. In a preferred embodiment to avoid pitching, Figs. 4 and 5, the car rides on a single wheel 9 mounted between twin arms 3. The car is supported by pivots 1a and by an adjustable hydraulic cylinder 10.
Patent GB-760404-A (GB)
Title: Improvements relating to electric switches and contact arrangements therefor
Inventor: MANN ALAN
IPC: H01H1/20
Filed: 1953-10-15
Abstract: 760,404. Interrupters. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 15, 1954 [Oct. 15, 1953], No. 28505/53. Class 38(5) A switch comprises a movable contact carrying member mounted transversely of an actuating member connected by an eccentric to a driving shaft, the actuating member being constrained so as to give the contact carrying member an oscillating and vibrating movement relative to fixed contacts arranged near the edge of the contact carrying member. The actuating member 4 is mounted by a ball bearing 3 on the eccentric 2 and is attached to a flexible strip 5 having fixed ends 6, 7. As shown, the contact carrying member comprises rigid conducting strips 8, 9 which co-operate with contacts 10...13 successively as the eccentric is rotated clockwise. Alternatively the contact carrying member may comprise insulating strips having contacts separately secured thereto, or may comprise flexible conducting strips secured to rigid strips, the fixed contacts engaging with the movable contacts through holes in the rigid strips.
Patent GB-191209-A (GB)
Title: Mechanical walking horses for exercise or recreation
IPC: A63G15/00
Filed: 1921-10-27
Abstract: 191,209. Baxter, J. M., Baxter, H. S., and Baxter, A. R. Oct. 27, 1921. Rocking horses. - The four legs of the horse are pivoted to the body and are provided with springs B or with balance weights so arranged as to cause them to swing in a forward direction when relieved intermittently from contact with the ground by jerking motions imparted to the horse by the rider. Suitable buffers D control the length of the stride. In a modification, the front and rear legs on each side are connected by links, rods, cords, or wires, the ends of each link being pivoted at a point above the main pivot on the one leg and at a point at a corresponding distance below the main pivot on the other leg. In this case the pressure of the propelling spring on the front legs is reversed so that the front and rear legs are pressed inwards when the horse is at rest. Suitable shoes or pads of rubber or felt are provided or short spikes for use on roads &c. Alternatively, the feet may be separate and spring-mounted. The position of the weights on the legs may be adjusted.
Patent GB-408954-A (GB)
Title: Improvements in supports for cycle and the like saddles
IPC: B62J1/08
Filed: 1932-10-13
Abstract: 408,954. Saddle - supports. DAVIES, R., 29, Acheson Road, West Derby, and DAVIES, J., 6, Eltham Street, Fairfield, both in Liverpool. Oct. 13, 1932, No. 28527. [Class 136 (iii).] A saddle-support of the type having an upper saddle - carrying part pivoted to the pillar so that it can be turned over to invert the saddle, which is thus protected from the weather, is constructed as follows. The saddlecarrying part B is pivoted at D to the rear end of a channel-shaped horizontal part a<1> of the pillar A, and comprises a forward part b<1> which carries the clamp C of the saddle E, and a rear part b<2>, which has flat sides to be gripped by the side checks of the channel-shaped part a<1>. The part b<2> may also be retained in the part a<1> by means of spring-pressed balls engaging corresponding recesses. The saddle when in the inverted position is slightly inclined in the longitudinal direction, so that any water is directed to a drainage hole. The saddle may be retained in the inverted position by means of a keyoperated lock.