baber/WOPTO huggingface dataset:
Patent GB-1526910-A (GB)
Title: Wide seat wheelchair
IPC: A61G5/08
Filed: 1977-06-16
Abstract: 1526910 Collapsible wheelchairs EVEREST & JENNING Ino 16 June 1977 [26 July 1976] 25228/77 Heading B7B The frame of the conventional collapsible wheelchair illustrated in Fig. 1 may be modified to allow the provision of a wider seat while retaining the major frame components unchanged. The modification consists in replacing the cross brace members 14 and 15 with larger members, and in increasing the available telescoping movement between each seat support post 21, 22 and the post 19, 20 out of which it slides during collapse of the wheelchair. The increased telescoping movement is achieved by the provision of an intermediate tube between each pair of posts 19, 21 and 20, 22. Internal tie rods are used to ensure that the intermediate tube does not separate from either of the posts with which it is associated.
Patent GB-1192623-A (GB)
Title: Information Handling Apparatus
IPC: G11B5/48
Filed: 1967-06-01
Abstract: 1,192,623. Magnetic recording &c. apparatus. SINGER CO. 1 June,1967 [11 July, 1966], No. 25233/67. Heading G5R. Information is stored on, and read from, a spiral or concentric circular tracks on a rotatable record 14 by a magnetic head 20 or 21 rotatable between two extremes about an axis 44 spaced from the record axis 16 less than the radial dimension of the record. The track width accordingly increases toward the record periphery to offset the increased tangential speed and thereby provide information of constant signal strength. Two heads 20, 21 are affixed to a member 18 having an arcuate or other surface 36 about which extend inextensible bands 68, 72 coupled to a capstan 22 driven by a stepping motor to position the heads radially of the record.
Patent GB-286994-A (GB)
Title: Improvements in covers for cylinder heads of internal combustion engines
IPC: F02F7/00
Filed: 1927-09-24
Abstract: 286,994. British Continental Motors, Ltd., (Assignees of Frederick, W. A.). April 15, 1927, [Convention date]. Carrying high-tension leads. - High-tension leads to an internal-combustion engine are clipped to the cylinder head jacket C, an opening being provided in the base of a casing D which is removable without releasing the cable clips.
Patent GB-653587-A (GB)
Title: Improvements in and relating to coating compositions
IPC: C09D5/10
Filed: 1948-09-28
Abstract: A coating composition includes zinc dust an alkali silicate and at least one of the group hydrogen peroxide, lead peroxide, barium peroxide, sodium perborate, potassium chlorate, potassium periodate, manganese dioxide and sodium persulphate.  The lead peroxide may be present in from 0.5 to 10 per cent by weight of the weight of the zinc dust, the hydrogen peroxide 0.1 to 5 per cent, the manganese dioxide 0.5 to 3 per cent, the sodium perborate 0.05 to 5 per cent, the sodium persulphate 0.05 to 1 per cent, the potassium perchlorate 0.05 to 5 per cent and the potassium periodate 0.005 to 1 per cent. The hydrogen peroxide may be of strength equal to 100 volumes lying between 0.05 and 1 millilitre per 100 grams of zinc dust.  The ratio of Na2O to SiO2 in moles may lie between 1 : 2.4 and 1 : 3.0.
Patent GB-1303605-A (GB)
IPC: D04C3/00
Filed: 1971-04-19
Abstract: 1303605 Braiding-machine AUGUST HERZOG MASCHINENFABRIK 19 April 1971 [11 March 1970] 25304/71 Heading D1C In a solid- or sash-cord braiding machine in which the bobbin carriers move in a closed path 1 having loops as shown, the bobbin track followers 2 have the curvature and width of the track in the regions B at the base of the loops. The track is narrower in the regions B than elsewhere. The shape of the follower and of its ends, which are bevelled or rounded, ensures its smooth passage.
Patent GB-1167772-A (GB)
Title: Improvements in or relating to Packaging Machines
Inventor: CROUCHER ANTHONY HARRY
IPC: B65B51/06
Filed: 1967-06-01
Abstract: 1,167,772. Packaging apparatus. A. H. CROUCHER. 28 March, 1968 [1 June, 1967], No. 25417/67. Heading B8C. In packaging articles, a length of adhesive or part-adhesive tape 2, so cut and laid across the articles, the ends of the tape are blown around the edges of the articles by means of compressed air or other gas issuing from jets 9 and the articles and tape are compressed between upper 12 and lower 11 pressure plates so as to cause the tape to adhere to the articles or to itself, The articles are supported at their edges on a platform 1 and the pressure plates are mounted on a carrier 3 which is lowered by an hydraulic ram 4. The lower pressure plate is preferably in the form of two halves, each half and an arm 6 being pivoted about a point 8. A projection 5 on each arm meets the resistance of a plate 7 when the carrier is lowered. The arms then pivot about the points thus causing the actuation of the compressed air jets and the inward and upward pivoting of each half of the lower pressure plate. Continued downward motion of the carrier causes the halves to move towards a horizontal position and push the adhesive tape underneath and around the articles. The compression of the articles and tape together eventually results, after which the package is removed from the platform. One of the halves of the lower pressure plate may be locked in its starting position so that the adhesive tape is wrapped around one edge only of the articles.
Patent GB-537137-A (GB)
Title: Improvements in or relating to gyro-verticals
IPC: G01C19/44
Filed: 1939-09-08
Abstract: 537,137. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Sept. 8, 1939, No. 25423. Convention date, Sept. 8, 1938. [Class 97 (iii)] The gyro casing of a vertical indicator or artificial horizon is pivoted in a gimbal ring mounted in a frame attached to an aircraft, and a horizon bar is carried by a tilting lever which is pivoted on the gimbal ring and is connected to the gyro casing by a linkage such that the displacement of the horizon bar subtends an angle at the axis of support of the casing having a ratio to the angle of tilt which is initially greater than unity and decreases as the tilt increases ; the connection may be a double pin-and-slot linkage and may be such that the horizon bar does not disappear from view even at large tilts. As shown, the casing 11 of a gyroscope having a normally vertical axis is carried by transverse pivots 13 in a gimbal ring 7 pivoted on a fore-and-aft axis in a casing 1. A horizon bar 4 is carried by a lever 24 pivoted at 25 to the ring 7 and balanced by a counterweight 27. The bar moves over a background member 28 which is carried by the ring 7 and may carry an index 30 reading against a banking scale round the viewing window. A miniature aeroplane, with which the bar 4 may register when the craft is in normal flying attitude, may be carried by a rack bar 31 adjustable by a pinion 32 and setting knob 33 in accordance with the craft loading. The lever 24 is formed with a slot 23 engaged by a roller 22 carried by a slotted link 20 pivoted about a pin 21 on the ring 7 ; a pin 16 carried by the casing 11 engages the slot in the link 20 and is relatively close to the pin 21 so as to produce the desired magnification. Specifications 393,695 and 417,185 are referred to.
Patent GB-1015194-A (GB)
Title: Cigarette making machine
IPC: A24C5/39
Filed: 1962-07-03
Abstract: 1,015,194. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. July 3, 1962 [July 3, 1961], No. 25458/62. Heading A2C. A method of making cigarettes comprises the steps of delivering tobacco shreds to a perforated screen, vibrating the screen to classify the shreds according to their length, separating the shorter shreds according to their weight and forwarding the shorter shreds having the desired weight to the rod-forming mechanism of a cigarette making machine. As shown in Fig. 1 tobacco is fed on to a perforated screen 10 which is vibrated by a motor 12 through a rod 14 so that the tobacco tends to move towards a picker roll 16. Good length shreds, shorts and stems pass through the screen on to a vibrating tray 19 whilst long shreds remain on the screen and pass to the picker roller 16. The long shreds are cut by rotating circular knives 20 and thrown back on to the screen by the roller 16. The tray 19 communicates with a conduit 24 which is connected to a source of suction so that the shorts and good length shreds are carried away and the heavier shreds and stems fall into a box 26. Conduit 24 leads the shreds to a second vibratory screen 27 (Fig. 2) having a mesh size such that desired shreds are retained and fed by a rotating drum 36 to the rod-forming mechanism of a cigarette machine, whilst undesired shreds fall on to a tray 34. In a second embodiment (Fig. 3, not shown) the tobacco is metered on to the first vibratory screen by a pair of endless conveyer belts and the roller 16 is replaced by a rotary spiked drum which breaks up the long shreds and throws them on to a collector, formed by a further endless belt, from which the shreds pass into the suction conduit where heavy particles and stems are separated. The conduit leads to a second vibratory screen (Fig. 4, not shown) the shorts falling through on to a conveyer belt for metering in desired proportion back into the stream of shreds being fed from the second screen to the rod-forming mechanism of a cigarette machine.
Patent GB-430328-A (GB)
Title: Improvements in or relating to fuel pumps for internal-combustion engines
IPC: F02M59/30
Filed: 1933-09-14
Abstract: 430,328. Fuel - injection pumps. HESSELMAN MOTOR CORPORATION, Ltd., 56, Kingsway, London. Sept. 14, 1933, No. 25535. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 23, 1934]. [Class 102 (i)] In a multi-cylinder fuel - injection pump the barrels 5 are carried by a block 2, which is secured by bolts 17 to a casing 3 carrying the driving shaft 19 and the tappet cross-heads 20. A casing 1, bolted to the block 2, forms the suction chamber, and houses a relief valve 7, which is acted on by a spring 13 and discharges by a passage 12. To permit adaptation of the pump to various positions, the cover 1 is reversible on the block 2 and the latter is reversible on the casing 3. The charge is varied by limiting the stroke by means of sleeves 23, which are notched to engage the heads of the plungers 6. The sleeves are mounted on a spindle 22, which can be rotated by the governor or otherwise. Each sleeve is separately adjustable by means of a screw 24 carried by a lever 26, which is secured to the spindle. A similar spindle 27 is arranged at the other side of the pump and can be utilized for putting one or more pumps out of action. The spindles 22, 27 can be withdrawn axially. Specification 394,651 is referred to.
Patent GB-733085-A (GB)
Title: Improvements in the production of thioether dicarboxylic acids and salts thereof
Filed: 1952-10-14
Abstract: Salts of thioether dicarboxylic acids are obtained by heating lactones with alkali metal or alkaline earth metal sulphides or hydrosulphides to 150-300 DEG  C. in the presence of an inert organic diluent boiling in the said temperature range and in which the said sulphides and hydrosulphides are insoluble.  If the sulphides or hydrosulphides used contain water they are first mixed with the diluent and the mixture is then heated until the water has distilled off before the lactone is added.  Specified lactones are gamma-butyrolactone, gamma- or delta-valerolactone, beta-propiolactone, angelic lactone, and the lactone of benzyl alcohol orthocarboxylic acid.  Suitable organic siluents are tetrahydronaphthalene, diethylbenzene, triethylbenzene and mixtures thereof.  When commercial hydrated sodium sulphide (Na2 S.9H2O) is used the reaction may be carried out by covering the sulphide with tetrahydronaphthalene and heating to boiling so as to distil off the water of crystallization.  The lactone can then be allowed to flow in gradually while water of crystallization is still being split off but it is preferred to heat the mixture until the water of crystallization has been completely distilled off before the lactone is added.  A similar procedure may be followed when using sodium hydrosulphide instead of hydrated sodium sulphide.  The free dicarboxylic acids may be obtained from the salts by acidification. In examples: (1) a suspension of commercial sodium sulphide containing 98 per cent Na2S, 1 per cent H2O and 1 per cent NaOH in tetrahydronaphthalene is boiled under reflux and gamma-butyrolactone allowed to flow in.  After boiling and allowing to cool the precipitate formed is filtered off, dried, and acidified with hydrochloric acid to yield thiodipropyl ether gamma, gamma1-dicarboxylic acid; (2) hydrated sodium sulphide (Na2S.9H2O) is introduced into a mixture of tri- and polyethyl benzenes and after boiling to remove water gamma-butyro lactone is added while the mixture is still boiling. After further boiling the mixture is cooled and water is added and the aqueous layer formed is separated from the non-aqueous layer, filtered, and acidified with hydrochloric acid to yield the same product as in (1); (3) and (4) the same product is obtained by reacting commercial sodium hydrosulphide and commercial sodium hydrosulphide dihydrate respectively with gamma-butyrolactone, the diluents being tetrahydronaphthalene and a polyethyl benzene mixture as used in (2) respectively.  Specification 639,679 is referred to.
Patent GB-188474-A (GB)
Title: An improved bicycle support
IPC: B62H1/00
Filed: 1921-09-29
Abstract: 188,474. Kress, C. F. Sept. 29, 1921. Supports.-A folding device for supporting a bicycle in a standing position comprises a leg A pivoted to a pin B rotatable in an eye C on a clip C<1> attached to the inclined back fork D, and a stay H adapted to turn on a stud or pin G on a clip F attached to the bottom fork E, the stay H having an eye h<1> through which passes the bottom portion of the leg A, the spread of which is thus limited. The support is secured in the closed or folded position by means of a clip J, which may be fitted with a spring catch &c. K. The leg A and stay H may be pivoted by means of ball-andsocket or like universal joints.
Patent GB-295146-A (GB)
Title: Improvements in refrigerators
IPC: F25D31/00
Filed: 1927-09-30
Abstract: 295,146. Colbrook, W., and Colbrook, W. T. Sept. 30, 1927. Refrigerators, domestic; cooling liquids, tubular apparatus for.-Apparatus adapted for installation as a unit for cooling foodstuffs or beverages in a domestic refrigerator or for cooling liquids in pipes comprises a chamber 11, Fig. 1, for the liquid' or foodstuff to be cooled separated by a space within a jacket 12, containing a liquid or gas, from a surrounding space containing ice or other cooling medium. The ice &c. may be confined in an insulated outer casing 14. In the arrangement shown in Fig. 4, liquid to be cooled passes through a helical pipe 24 enclosed by concentric pipes 25, 26 between which a liquid or gas is contained, the cooling medium being placed outside the annular space. Apparatus in the form of inner and outer chambers or concentric straight pipes only is also described, the cooling medium in all cases being separated from the container of the medium to be cooled by a space for fluid, to avoid freezing. Specification 288,730 is referred to. Reference has been directed by the Comptroller to Specifications 51/00, 20387/00, 17622/05, and 261,709.
Patent GB-461702-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/28
Filed: 1935-09-18
Abstract: 461,702. Mechanical switches without quick action. ABINGDON WORKS (1931), Ltd., BRAMLEY, T. B., and GRAY, J. Sept. 18, 1935, No. 25832. [Class 38 (v)] [Also in Group XXXVI] In a suction cleaner, a sliding switch member k co-operates with the inner ends p of the resilient contacts of a bayonet socket g and with other resilient contacts q arranged at right angles to the first and connected to the motor. The sliding member k, comprises insulated conducting bands u, x and a partial band 2 on which the left-hand contact q rests when the switch is in off-position, and may be formed by filling a hollow metal sleeve with mouldable material and subsequently cutting away the sleeve as required. The push-buttons may be fixed rigidly during the moulding or may be secured to a metal rod connected by springs to the switch member. The bearing surfaces on the switch body and between the bands u, x may be faced with porcelain.
Patent GB-278377-A (GB)
Title: Improvements in and relating to bushing terminal conductors
IPC: H01B17/26
Filed: 1927-09-30
Abstract: 278,377. British Thomson-Houston Co., Ltd., (Assignees of Burgeson, C. F.). Oct. 2, 1926, [Convention date]. Protective arrangements.- A terminal 11 mounted on an insulating bushing 12 on the casing of a transformer circuit-breaker, &c. is connected to an external conducttor 14 by means of an inductive connector 10. The connector is formed of strip metal wound edge-wise with spaced turns The transformer &c. is thus protected from electrical disturbances in the conductor 14.
Patent GB-1526147-A (GB)
Title: Delivery of granular material
IPC: B65G47/72
Filed: 1977-06-10
Abstract: 1526147 Endless conveyers; shoots COAL INDUSTRY (PATENTS) Ltd 10 June 1977 [22 June 1976] 25882/76 Headings B8A and B8S A belt conveyer 17 can feed material to either a convey 16, or a conveyer 15, according to the position of a mobile double-shoot member 8. The latter is mounted on rollers 1 running on rails, or it may be moved by the action of an endless member (not shown). The member 8 may be powered by hydraulic or pneumatic means 4, or by electrical or prime mover means. The movement may be electrically controlled, remotely or automatically. Sensors may respond to the amount of material in the shoots. Switchover may occur when one shoot is full. Sensors may respond to different types of materials. The member 8 may alternatively have a rotary action.
Patent GB-277518-A (GB)
Title: Improvements in filler caps or closures for automobile petrol tanks and like receptacles
IPC: B60K15/04
Filed: 1926-10-18
Abstract: 277,518. Breeden, C. L. Oct. 18, 1926. Stoppers with valves.-In a closure for automobile petrol tanks &c. comprising a pivoted inner or auxiliary cap g combined with a screw-threaded or other cap a, spring action serving to retain the inner cap in either the closed or open position, the inner cap g is pivoted as at f to an annular frame c which is rotatably mounted in the detachable cap a. The frame c is formed with downwardly extending lugs e carrying pivots f on which depending projections h on the inner cap g are mounted, and the projections have pins i laterally offset with respect to the pivots f and adapted to be engaged by a spring secured to a lug k integral with the frame c. The spring j lies substantially in the plane of the inner cap g which is of double plate formation with an intermediate resilient seating element. As shown, the spring j, Fig. 6, is of substantially semi-circular form, but it may be replaced by two smaller springs.
Patent GB-920458-A (GB)
Title: Improvements in and relating to apparatus for continuously producing a rubber coating
IPC: B29D23/00
Filed: 1960-07-26
Abstract: An apparatus for coating the interior of a tube of woven textile, comprises a hollow mandrel 1 about which the tube is woven, and to the interior of which a rubber or rubber-analogous substance in liquid form, and capable <PICT:0920458/III/1> of solidification, is fed, under regulatable pressure, from a pipe 11.  A member 100, of nylon or other thermally insulating material, has its lower tubular portion accommodated within the mandrel 1, while its upper portion 101 is solid and constitutes a blocking means; the portion 101 supports a calibrating tube 103 for guiding the textile article. Immediately below the portion 101, the member 100 is provided with inclined slots 104, and below these it is surrounded by a lipped sleeve 105 of flexible material, e.g. polyvinyl chloride, constituting a seal.  The upper portion of the apparatus is surrounded by a heatable metal sleeve 7, which may be provided with a lifting device, as in the parent Specification.
Patent GB-688366-A (GB)
Title: Improvements in circuits for the demodulation of amplitude-modulated high-frequency oscillations
IPC: H03D1/12
Filed: 1951-11-06
Abstract: 688,366. Valve circuits for radio reception. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 6, 1951 [Nov. 9, 1950], No. 25931/50. Class 40 (v). A diode detector 9 is provided with a variable positive bias which is derived, via resistances 22, 24, from the screen-grid circuit of a valve 2 subject to A.V.C. A fixed negative bias is also applied, by means of a resistance 23, such as to balance the positive bias on weak signals. The screen-grid potential of the valve 2 is derived over a series resistance 21. In a modification, Fig. 2 (not shown), the resistance 23 is omitted; instead, the lower end of the load resistance 13 is connected to the negative supply line.
Patent GB-646130-A (GB)
Title: Improvements in or relating to apparatus for mixing material
IPC: B29B7/18
Filed: 1946-08-29
Abstract: 646,130. Batch mixers. ARMSTRONG CORK CO. Aug. 29, 1946, Nos. 25949 and 25950. Convention date, Oct. 31, 1945. [Class 86] A mixing machine for mixing heavy viscous mixes is provided with a breaker block serving to divide and break masses of material carried upwardly against it by the leading surfaces of the stirrer blades. The mixing chamber 22 is defined by spaced upper and lower semi-cylindrical body casings 23, 24 bolted to side members 10, 11, Fig. 8. The remainder of the mixing chamber wall is constituted by an upper ram 26 and a lower ram 27 both of which are retractable by means of hydraulic pistons from the position shown, the ram 26 to allow the chamber to be charged through the spout 29, and the ram 27 to allow discharge gravitationally through the gap 63. Mixing and kneading blades 20, 21. mounted on shafts 16, 17 rotate in the chamber 22, these shafts being coaxial with the axes of the semicylinders. The ram 26 is provided with a replaceable breaker block 26a against which the blades 20, 21 mull the mix. As shown in Fig. 8, each blade is provided with two wings of unequal length provided with a helical twist. The lower semi-cylinder 24 is mounted on a bracket pivoted at 50 to the frame of the machine and may be drawn back, Fig. 3, by the hydraulic piston 52 to: allow cleaning of the mixing chamber. Heating or cooling tubes 30, 31 pass through the semicylindrical casings 26, 27, and the rams and shafts 16, 17. Replaceable hard steel linings are provided for the mixing chamber. The construction of blade is described in Specification 646,193.
Patent GB-1075347-A (GB)
Title: Slicing machine
IPC: B26D7/32
Filed: 1964-06-24
Abstract: 1,075,347. Slicing machines. J. ZAPOMEL. June 24, 1964 [June 27, 1963], No. 26027/64. Heading A4C. A meat slicing machine comprises a feed carriage 1 which is reciprocated adjacent a rotary knife 3, a plurality of conveyer belts 5 fitted with carrier pins 14 and extending perpendicularly to the cutting plane, pivotal arms 16 for removing cut slices from the conveyer belts 5 to a piling station, and an inclined guide 13 located adjacent the knife 3 and extending towards the belts 5 to direct cut slices to the pins 14. The guide 13 comprises end portions extending parallel to the cutting plane and the belts 5 respectively and an intermediate portion inclined to the cutting plane, and is adjustable mounted. Reciprocation of the belts 5 is synchronized with the carriage 1 movement by a rack 12 on the carriage 1 which operates conveyer drive gears 11, 10. The arms 16 are operated by a solenoid 17 actuated by a contact 18 at the end of the carriage 1 stroke. The guide rollers 6, 7 of the belts 5 are spring loaded to ensure even tension in the belts 5. In an alternative arrangement, the movement of the belts is non- directional.