baber/WOPTO huggingface dataset:
Patent GB-440515-A (GB)
Title: Improvements in and relating to pneumatic percussive tools
IPC: B25D11/10
Filed: 1934-10-24
Abstract: 440,515. Percussive drills. FIGUEROA, J. M. DE TRILLO-, 17, Don Ramon de la Cruz, Madrid. Oct. 24, 1934, No. 30555. Convention date, Oct. 24, 1933. [Class 124] The hammer piston P is rotated by the shaft E and is thus raised by the fixed rollers R engaging the helical ribs H. This upward movement compresses the spring M and also the air in the space above the piston, the energy thus stored producing the downward movement of the piston. Air is admitted to the cylinder by the valves V. The shaft may be rotated by hand or by an electric motor. In modifications the helical ribs are carried by the cylinder walls, and their number is varied.
Patent GB-817365-A (GB)
Title: Improvements relating to screwed connectors for copper back boilers and similar domestic hot water apparatus
Inventor: SIMPSON ERIC
IPC: B21D19/00
Filed: 1956-10-08
Abstract: 817,365. Making hollow-ware. RANGE BOILERS Ltd. Sept. 23, 1957 [Oct. 8, 1956], No. 30562/56. Class 83 (2). A screwed connector for copper back boilers and similar domestic hot water apparatus is produced by forming in the boiler or like plate a hole a of much smaller bore than the normal bore of the screwed connector and then stamping and working up the metal around the hole to enlarge it and produce an uninterrupted surface of metal extending from the boiler body b to the tubular screwed portion c, the screw being cut in the worked-up material and having its axis at right-angles to the portion of the plate in which the screwed connector is formed, and a ring of brass e is cast in the annular gap behind the tubular threaded part of the connector.
Patent GB-787148-A (GB)
Title: Improvements in or relating to electric lamp holders
Inventor: LONGMAN CECIL WALTER
IPC: H01R33/22
Filed: 1955-10-26
Abstract: 787,148. Lamp holders. PRESSED STEEL CO., Ltd. Oct. 26, 1955, No. 30674/55. Class 38 (1). A screw-type lamp-holder comprises a unitary moulded body of flexible resilient insulating material formed with recesses 22, 19 to grip the edge of a panel 50, and with ribs 20, 21 providing recesses 23, 24 the bottoms of which are formed with slits 25, 26 which retain blades 34, 35 secured to the supply leads, the blades constituting the lamp holder contacts. A projection 36 prevents blade 35 from  swivelling in the holder and short-circuiting the supply.
Patent GB-360159-A (GB)
Title: Improvements in or relating to combing machines
IPC: D01G19/10
Filed: 1930-10-14
Abstract: 360,159. Combing-machines. HORRIDGE, H., 40, Higher Swan Lane, and DOBSON & BARLOW, Ltd., Kay Street Works, both in Bolton. Oct. 14, 1930, No. 30693. [Classes 120 (i) and 120 (iii).] In a combing machine the movement of the nipper rocking shaft 12, Fig. 1, necessary to produce a desired adjustment of the nippers is shown by an indicating device moved by or at the same time as the shaft, the top comb arm 5 having a similar indicator calibrated with reference to the nipper indicator so that by adjusting the top comb arm 5 until the indicators correspond the top comb will be set in its correct working relation to the adjusted position of the nippers, and thus corresponding variations in setting between the nippers and top comb can be easily effected without gauges according to the degree of waste percentage required. The arm 5 carrying the top comb 4 is pivoted at 6 to a link 7 pivoted at 8 to the nipper frame 9, the latter being adjustable to and from the detaching rollers 10 to vary the percentage of waste by angular movement of the arm 11 on the shaft 12. A slide bar 13 is mounted on the shaft 12 and carries a slide 14 loosely mounted on an eccentric bush 17 by which a plate 16 is mounted on a stud 18 of the index wheel 19. The slide 14 and eccentric plate 16 are connected by a screw 15 through a slot 17a. The edges of the plate 16 and index wheel 19 are graduated. By releasing the screw 15 and turning the plate 16 the eccentric 17 and slide 14 will be moved about the stud 18 and the slide bar 13 thus raised or lowered with reference to the shaft 20 such movement rotating the shaft 12 and moving the arm 11, connecting-rod 21, nipper frame 9, nippers 22, and top comb arm 5. The link 7 has an extension 23 graduated equally on each side of a zero and slotted at 24 through which passes a securing screw 24a to connect it to the arm 5. In a modification, instead of using the plate 16, the slide 14 is connected to the index wheel 19 by a screw 37 engaging a slot 38 therein, Fig. 2. The slide bar 13 and nippers 22 are adjusted by slackening the screw 41 and adjusting the setting bracket 25, the movement being shown by an indicator comprising a pointer 26 on the arm 13 moving over a graduated arc on a plate 27 secured to the bracket 25. Alternatively the indicator comprises an arm 29, Fig. 3, carried on the slide arm 13 and having a pin 31 traversing a slotted arc 32 in a plate 33, the pin 31 engaging a slot 34 in a pointer 35 adapted to move across a graduated arc 36 on the plate 33 which is secured to the setting bracket 25.
Patent GB-244746-A (GB)
Title: Manufacture of aromatic stibinic acids
IPC: C07F9/92
Filed: 1925-12-04
Abstract: Aromatic stibinic acids are prepared by treating a diazo compound with antimony oxide in the presence of a polyvalent alcohol such as glycerin or mannite.  The product is not very soluble in the alkaline solution containing the polyvalent alcohol and readily precipitates with acid; the presence of the alcohol also reduces the amount of undesirable by-products.  According to the examples, (1) a solution of antimony oxide in hydrochloric acid, to which glycerin has been added, is poured into an ice-cooled solution of diazotized aniline and caustic soda then added; the resulting phenylstibinic acid is precipitated with hydrochloric acid and purified, when a greater yield is obtained than if glycerin were absent or if tartar emetic were used instead of antimony oxide; (2) similar increase in output is obtained if glycerin be added when making p-chlorophenylstibinic acid, or m-chloro-p-acetylaminophenylstibinic acid from 2-chloro-4-amino-1-acetanilide.
Patent GB-1276745-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/528
Filed: 1969-06-17
Abstract: 1276745 Semi-conductor devices NIPPON ELECTRIC CO Ltd 17 June 1969 [17 June 1968 28 Dec 1968] 30717/69 Heading H1K [Also in Division C7] A semi-conductor substrate 101 containing at least one circuit component has on one surface a layer comprising a portion 201 of metal and a portion 404 of metal oxide, which has been formed by anodic oxidation of the metal. In the embodiment shown a Si substrate 101 with a coating of SiO 2 , either alone or covered with Si 3 N 4 , phosphosilicate glass, alumina-silicate glass or evaporated, sputtered or vapour grown alumina, is covered with a uniform coating of Al. Parts of the Al layer are masked with photoresist and the exposed parts are anodized using an ammonium borate solution saturated with ethylene glycol to produce porous alumina portions 404. An anodizing solution of 2% sulphuric acid is next used to produce a non- porous alumina portion 502 around the remaining Al portion 201. To permit contact to be made to the Al 201, either to external terminals or to the next level of a multi-level electrode structure, an aperture 503 is etched through the non-porous alumina 502. Alternatively part of the original Al layer may extend to the surface due to selective masking during the second anodizing step. In a multi-level structure additional layers of SiO 2 , ceramic, glass or metal oxide may optionally be deposited between each level of the structure. Insulating metal oxide colourants may be used to distinguish the different levels. In a modification, part of the non-porous alumina portion is formed before the porous portion 404 using selective photo-resist masking. Fig. 6 (not shown) illustrates the application of the invention to an IGFET forming part of an integrated circuit. Other anodizable metals such as Ta, Ti, Nb or Hf may be used instead of Al. Device stability may be improved by heating to 400 C. in water vapour.
Patent GB-239417-A (GB)
Title: Improvements in or relating to aprons for personal wear
IPC: A41F19/00
Filed: 1925-05-09
Abstract: 239,417. Cairns, H. C. May 9, 1925. Fastening wearing- apparel.-A spring metal band for supporting garments at the waist line and particularly applicable to aprons is bent to the shape of a hoop and provided with tapered ends which are rolled or beaded over at D. The band may be made, as shown, in sections A, A' hinged together to fold.
Patent GB-446107-A (GB)
Title: Improvements in filtering-apparatus
IPC: B01D29/09
Filed: 1934-10-29
Abstract: 446,107. Filters. MANNING CO., Ltd., F. W., 1151, South Broadway, Los Angeles, U.S.A. Oct. 29, 1934, No. 31011. Convention date, Nov. 7, 1933. [Class 46] When the active portion of a filter element becomes clogged it is automatically replaced by a fresh portion by means rendered operative by a rise in the pressure of the unfiltered liquid. A roll 35 of fabric constituting a hollow filter element is mounted on a frame comprising a bottom plate 36, a perforated cylindrical wall 43 with external longitudinal ribs and a cover plate 47. The frame is mounted on a pipe 31 which serves to discharge the filtrate, the liquid under treatment being supplied to the casing 11 through a connection 91 and filtering inward through the element. When the outer layers of the roll 35 become clogged they are drawn off on to a spool 80 on a shaft 75 supported by arms 61, 78 from a shaft 57. The spool is held in contact with the element by springs 55, 87 and rotated from a driving pulley 96 on a shaft 67, by means of bevel gearing 65, the shaft 57 and a chain drive 72. A clutch connecting the pulley 96 with the shaft 67 is normally held out of engagement by the end 120, Fig. 3, of a rod 117, but when due to clogging of the filter the pressure within the casing 11 rises, the pressure rise is communicated to a bellows device 125 which withdraws the rod 117 and allows a spring 107 to close the clutch. The spool 80 then rotates and the clogged fabric is wound from the roller 35 on to the spool, with the result that the pressure falls again and the rod 117 moves so that its end engages a spiral face 108 rotating with the shaft 67 and causes disengagement of the clutch after a few further turns of the shaft 67. The fabric may be scrim and may support a layer of loose fibrous material. The cover 14 of the casing can be lifted by means of a screw 28 and swung aside on a pivoted arm 23.
Patent GB-518807-A (GB)
Title: Improvements in and relating to rotary scraping apparatus for sedimentation tanks
IPC: B01D21/06
Filed: 1938-10-27
Abstract: 518,807. Gravity-separation apparatus. HARTLEY, C. J. Oct. 27, 1938, No. 31059. [Class 111] In apparatus comprising an upright feed pipe 10, a feed box 12 supported by columns 11 and forming a platform which has a circular rail or track for a cross-bridge 13, from which scrapers are suspended, all as described in Specification 498,239, the arms of the bridge are arranged as balanced cantilevers and the bridge is driven at the centre by means supported on the bridge itself or on the platform. As shown a circular rail 20 fixed to the bridge engages rollers 18 mounted on the platform. The bridge is rotated by pinions 25, driven by worm gearing from an electric motor on the bridge and engaging a rack 24 fixed on the platform, Tilting is prevented by rollers 32 which depend from the bridge and engage a wearing strip 33 on the side of the feed box. Alternatively, idle rollers at one or both outer ends of the bridge may rest lightly on the outer wall of the tank. There is a central toe-step bearing 21 and tie rods 17 connect the arms of the bridge to the uprights 16, A second pair of cantilever arms may be arranged at right angles to those shown.
Patent GB-340065-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G5/16
Filed: 1929-10-14
Abstract: 340,065. Driving-belts. BRAMMER, H., Vesper Mount, Vesper Road, Kirkstall, Leeds. Oct. 14, 1929, No. 31083. [Class 80 (i).] ] Leather, rubber, &c. V-driving-belts are built up of tapered links of uniform thickness, a stud 20 being riveted in the end of each link adjacent its semicircular end 2 and projecting inwards to be passed through modified key-hole slots in the adjacent t links. The slots may be formed in pairs, the head 21 of the stud entering a hole 17 and being passed through a slit 19 into a hole 18, or in sets in which the head 21 enters a hole 12 and may be passed either into a hole 15 or into a hole 16, the number of such sets or holes depending upon the number of links to be secured by each stud. Owing to the tapered form of the links, the belt is of V-form in cross-section. The holes 15, 16, 18 may be elongated so as to allow freedom of the studs while the belt is passing over the pulleys. Specification 153,712, [Class 80 (i), Gearing, Belt &c.], is referred to.
Patent GB-871229-A (GB)
Title: Contacting type drum tuner for high radio frequencies
IPC: H03J3/00
Filed: 1959-09-11
Abstract: 871,229. Inductances. ALADDIN INDUSTRIES Inc. Sept. 11, 1959 [Sept. 11, 1958], No. 31110/59. Class 38 (2). [Also in Group XL (c)] A tuner comprising a coil 14, having a plurality of taps and mounted on an insulating cylinder, is characterized in that it includes a conductive strip extending at least part way round the cylinder and connected to one end of the coil, a first stationary contact 26 engaging the conductive strip and a second one 28 engageable with each of the taps in succession so that the effective inductance of the coil between the contacts is varied by rotating the cylinder. The conductive strip 46 is divided into two segments 46a, 46b corresponding to two coil portions 44a, 44b which cover channels 2-6 and 7-13 respectively, one end of the coil portion 44a being connected to the segment 46a and one end of coil 44b connected to segment 46b. The details of the coil 14 are as shown in Fig. 2, the coil being arranged to minimize the need for cross-overs or jumpers. To provide suitable inductances for two channels 7-13, arrow-shaped ribbon conductors 50-7 up to 50-13 extending between the corresponding taps and the conductive strip 46b are used. To cover the low portion of the V.H.F. television band the coil 44a has more inductance and in this case the coils wound round the cylinders include spiral coil portions extending round the taps 48-2, 48-3, 48-4. When the contact 28 engages the tap 48-IF all of the turns 50-IF, 50-2 up to 50-6 are in the circuit between 26 and 28, and as the cylinder is rotated the coil elements are removed from the circuit as the contact 28 moves on to the taps 48-2 to 48-6. Further rotation of the cylinder will bring the tap 48-7 against the contact 28, the contact 26 then being engaged by the conductive strip 46a. All of the inductance elements 50-7 up to 50-13 will then be in the circuit between the contacts 26 and 28. By further rotation of the drum successive inductance elements are cut out as above. A number of tuners may be operated simultaneously by ganging the tuner shafts together with gears or other suitable mechanisms.
Patent GB-1175819-A (GB)
Title: Strip-Feed and Take-up Magazine
IPC: G03D13/00
Filed: 1968-06-28
Abstract: 1,175,819. Stop-feed and take-up magazine. FAIRCHILD CAMERA & INSTRUMENT CORP. June 28, 1968 [Aug.28, 1967], No.31154/68. Heading G2A. A film strip-feed and take-up magazine comprises a strip-feed unit 10 and a self-threading take-up unit 11 adapted for engagement with a strip-exposure unit 12. The film 14 emerges from the strip-feed reel 13 contained in unit 10, to pass through a guide slot 15 of unit 12, over a resilient arcuate cylindrical plate 27 performing the function of a dancer roller and thence over a strip-advancing- sprocket wheel 28 and out through a lower guide slot 16 into the take-up unit 11. In order to aid in threading the film through the processing unit there is provided a housing member 29 pivoted on the frame 30 so that it may be swung away from the film-advancing roll 28. The end of the film enters the take-up unit through the slot 17, passes into the chamber 18 and is deflected by the periphary of the chamber and by the resilient arcuate plate 21 to engage the hub 19a covered by a frictional material such as rubber. The hub is driven by a gear (20) and the film is wound thereon. The slot 17 has a shutter, normally closed, but opening on engagement of the take-up unit and the exposing unit. The shutter comprises a pair of cylindrical elements 23, 24 pivotally disposed just above and below the guide slot and biased to close the slot by means of springs 25. A pin 26 with a tapered head, upon engagement as described, acts upon pins (23a, 24a) to separate the shutter elements 23, 24.
Patent GB-311591-A (GB)
Abstract: 311,591. Berkel, C. F. M. van, Duyn, A. van, and Weenen, F. L. van. July 6, 1928. Tapping.-A tapping-machine has driving means whereby the direction of rotation of the tool is periodically and automatically reversed, one construction comprising a combination of elliptical and differential gears. A bevel wheel 12 rotating freely on the tap spindle 18' within a. differential gear housing 21 is driven at variable speed from a shaft 6 by means of elliptical pinions 7. 9 or circular pinions mounted eccentrically, the housing being driven at uniform speed in the same direction as the bevel wheel 12 by pinions 8, 13, 14. The bevel wheel 15 is splined to the tap spindle. When the wheel 12 is rotating at more than twice the speed of the housing the direction of rotation of the tap spindle is reversed. In the arrangement shown the tap 19 is stated to rotate 89‹ in one direction and then 9‹ in the reverse direction, the periodical reverse movement assisting in clearing out the cuttings. When the hole has been tapped to the required depth the tap spindle is caused to rotate continuously in reverse direction by the contact of an adjustable nut 24 at the top of the tap spindle with a lever 23 linked to a lever 29 which disengages the clutch 31, 32 of the pinion 8, a brake lever 33 carrying a brake block 35 engaging a groove 36 in. a flange on the differential housing holding the latter stationary.
Patent GB-409750-A (GB)
Title: Improvements in or relating to the treatment of raw coffee
IPC: A23F5/02
Filed: 1932-11-05
Abstract: The taste and aroma of raw coffee is improved by treating the beans before roasting with aldehyde in gaseous form.  For example, the beans may be agitated in an atmosphere consisting of damp air and formaldehyde vapour.  The process results in no substantial reduction of the caffein content of the coffee.  Specification p  408,613 is referred to.
Patent GB-663567-A (GB)
Title: Improvements in and relating to the preparation of pyrimidine compounds
Filed: 1948-12-03
Abstract: 2 - Carboxymethyl - thio - pyrimidines, substituted in 4-position by an amino or substituted amino-group, and optionally by alkyl groups in 5- and/or 6-position, the 5-position or one of the NH2-positions remaining unsubstituted, are obtained by the action of chloracetic acid on the corresponding 2-thiol-4-amino- or substituted-amino-, pyrimidine.  In examples, 2-thiol-pyrimidines having in the 4-position: tetradecylamino-, anilino-, amino-, p-methoxyanilino-, piperidino-, n-amylamino-, and methyl in 5- or 6-position in some cases, are treated with aqueous chloracetic acid to give the corresponding 2-carboxymethylthio-derivatives.  The products may further be converted into 2-amino, 2-hydroxy-(and 2-free) 4-amino- or -substituted amino-pyrimidines.
Patent GB-793975-A (GB)
Title: Refrigerator or like door fastenings
Inventor: HARMAN JULIUS
IPC: E05C3/16
Filed: 1955-11-02
Abstract: 793,975. Door fastenings. WILMOTBREEDEN. Ltd. Oct. 4, 1956 [Nov. 2, 1955], No. 31315/55. Class 44 A fastening for a refrigerator or like door comprises the combination of a body part 4 adapted to be mounted adjacent the free edge 9 of the door, a bell-crank lever pivotally mounted on the body part and one arm 6a of which is adapted to extend at the outside of the door to serve as a handle, a two-armed lever pivotally mounted on the body part 4 and one arm 8a, of which forms a catch piece adapted to. extend from the free edge of the door. for engagement with a keeper 10, and a link 7 pivotally interconnecting the other arm 8b of the two-armed lever with the other arm 6b of the bell-crank lever, the arrangement being such that in the latched position of the fastening, the link forms with the other arm 6b of the bellcrank lever an extended toggle linkage which requires to be collapsed by movement of the handle before the fastening can be unlatched, whilst in the unlatched position of the fastening the link forms with the other arm 8b of the two-armed lever an extended toggle linkage which requires to be collapsed by movement of the catch piece 8a before the fastening can be moved to the latched position. As shown, movement of the catch piece 8a to a position allowing the door. to be closed, is effected by its engagement with a link 10a of the keeper, the catch piece thereafter engaging a limb 10b and moving the handle 6a to a position parallel with the fate of the, door.
Patent GB-340656-A (GB)
Title: Improvements in and relating to the synthesis of alcohols
IPC: C07C29/32
Filed: 1929-10-16
Abstract: Ethanol and higher alcohols are produced from mixtures of carbon monoxide and hydrogen, under pressure, with or without the addition of methanol, employing as catalysts alkali salts of fatty acids mixed with porous supports, for instance, zinc oxide, pumice, magnesite, silica or such as may be employed as catalysts for the synthesis of methanol, for instance, calcined Smithsonite. Formates, acetates or propionates of potassium, rubidium or caesium, or mixtures thereof, are specified.  A temperature of 400 DEG -420 DEG  C. and pressure of 250-300 atmospheres may be used. Carbon dioxide produced is removed from the reaction gases by washing with alcohol, for instance, synthetic methanol.  An initial mixture of more than two volumes hydrogen to one volume carbon monoxide may be used, but the gases returned to the cycle after washing may contain a smaller proportion of hydrogen.  To prevent decomposition of the catalyst, the pressure is increased prior to the increase in temperature.  Specification 330,919, [Class 2 (iii), Dyes &c.], is referred to.