baber/WOPTO huggingface dataset:
Patent GB-488247-A (GB)
Title: Improvements in the control of the tension of the endless tread of motor vehicles
IPC: B62D55/30
Filed: 1937-10-08
Abstract: 488,247. Endless-track vehicles. JACKSON, L. MELLERSH-. (Marmon-Herrington Co., Inc.) Oct. 8, 1937, No. 27425. [Class 79 (i)] In an endless-track vehicle having a water-tight body mechanism is provided operable from within the body to move a track-engaging pulley to tension the track. In the construction shown in Figs. 1 and 2, the idler pulley 13 rotates on a pin 60 carried eccentrically by a disc 61 secured to a sleeve 65 mounted in bearings 69 carried by the vehicle body 10 which is watertight up to the level of the running- board 10<1>. The sleeve 65 is fixed to a shaft 66 carrying an arm 71 within the body and connected by an adjustable link 72 to a lever 73 controlled by a spring 74, which tends to rock the arm 71 and keep the track under tension. The bearings 69 have an oil seal at 90 to keep water out. The eccentricity of the pin 60 relative to the sleeve 65 may be varied; for this purpose the sleeve 65 is formed with a circular eccentric head 64 which can be rotated in a socket in the disc 61 to any desired position, being fixed in this position by bolts 63. In the construction shown in Fig. 3, the pulley 13 rotates on a pin 100 fixed to a block 102 sliding in guides 103 on the body 10, the block being controlled by a cam 113 fixed on a shaft 112 passing through a water-tight bearing in the body and having an arm 116 loaded by an adjustable spring 117. An adjustable stop 122 limits the outward movement of the block 102.
Patent GB-1205812-A (GB)
Title: Rotary mower
Inventor: DAVISON FRANK
IPC: A01D34/82
Filed: 1967-06-14
Abstract: 1,205,812. Mowers. F. DAVISON. 12 Sept., 1968 [14 June, 1967], No. 27433/67. Heading A1F. [Also in Division F2] A rotary mower in which the wheels can be adjusted to alter the height of cut has a guard J running transversely across the machine between a pair of wheels, the guard being by the wheel axles E or bearing blocks so that it substantially prevents ingress of the operator's foot irrespective of the setting of the rotating mower blade.
Patent GB-385047-A (GB)
Title: Improvements in or relating to foot rests
IPC: B60N3/06
Filed: 1931-10-03
Abstract: 385,047. Foot-rests. TERRY, A. V., Oakenshaw, Headless Cross, Redditch, Worcestershire. Oct. 3, 1931, No. 27485. [Class 52 (ii).] A resiliently supported foot-rest comprises springs e connected at their inner ends to a central plate g, h, and radiating or diverging therefrom for anchorage, at their outer ends to a surrounding or supporting frame a, d. The cross-bars b, c may act as stops to limit the downward movement of the plate.
Patent GB-519374-A (GB)
Title: Improvements in or relating to welded rail bonds
IPC: E01B11/50
Filed: 1938-09-21
Abstract: 519,374. Rail joints.. SCHNEIDER, J. F. Sept. 21, 1938, No. 27514. [Class 104 (ii)] A welded rail joint comprises a base plate 4 under the rails and an upper plate 6 on one or both sides of the rail web 2 and extending from the rail flanges towards the web. The part 4 is welded at 5 to the rail flanges and the part 6 is welded at 8 and 9 to the web and flanges. In the form shown in Fig. 7, plate 6 comprises a vertical part 6a and an inclined part 6b. Fig. 4 shows another form in which the ends 10 of the plates 6 may be turned in towards the flange and web.
Patent GB-362036-A (GB)
Title: Improvements relating to racquets for games
IPC: A63B51/00
Filed: 1930-09-16
Abstract: 362,036. Tennis &c. rackets. NASH, R. J., 1, Nelson Passage, High Street, Birmingham. Sept. 16, 1930, Nos. 27589 and 27935. [Class 132 (ii).] The transverse stringing of a tennis, badminton or other racket is formed from two lengths of gut, wire or other material that are threaded through holes in the frame in such a manner that each alternate string is on one length and the intervening strings are all on the other length. The stringing holes g terminate at their outer ends in recesses d, e extending around the outer edges of the frame, the strings of one length of transverse stringing entering one recess and the strings of the other length entering the opposite recess. The longitudinal stringing may be formed of one length of material, or of two lengths one on each side of the longitudinal axis. In either case the strings are passed forward two holes at one end and back one hole at the other.
Patent GB-1318551-A (GB)
Title: Eddy current inspection control circuit
IPC: G01N27/90
Filed: 1970-06-08
Abstract: 1318551 Electromagnetic flow detectors USS ENGINEERS & CONSOLTANTS Inc 8 June 1970 [9 June 1969] 27674/70 Heading G1N In an eddy current flow detector, a pair of sensing coils 6 provide a defect signal upon sensing differences in the eddy currents induced by a primary coil 4 and the defect signal operates logic circuitry to energize a paint marker 192 which produces a longitudinal mark centred on the defect. Upon detection of the entry of the object P by a photo-cell 18, the defect signal resulting from sensing of the entry of the object into the coils 6 is attenuated by resistors 204 so as not to obscure a genuine defect signal for a defect occurring close to the end, and the paint marker is operated such that only the end of the object is painted, the mark being half the length of the mark being half the length of the mark produced on a genuine defect. Upon detection of the exit of the object by the photo-cell 18, the paint marker is not operated by the defect signal resulting from detection of said end by the coils 6. However, if a genuine defect is sensed before the end is sensed a mark is provided. The marker is operated such that for defects which occur within half a mark length of a previous defect, the mark of the previous defect is not extended, and for defects which occur more than half mark length but less than a full mark length away from a previous defect, the mark of the previous defect is extended to cover the subsequent defect.
Patent GB-937944-A (GB)
Title: Improvements in or relating to bolt devices
IPC: E05C1/10
Filed: 1962-07-19
Abstract: 937,944. Bolts, hinges and pivots. E. HENSEL. July 19, 1962 [Aug. 5, 1961], No. 27776/62. Classes 44, 65 (2) and 89 (1). A bolt device comprises a bolt member slidably movable in a guide member of resilient material having a slot engaged by a projection of the bolt member, the said slot having a restricted opening at the end of the guide member to allow intentional withdrawal only of the bolt and projection thereon by the yielding of the guide member wall. Such a bolt device may be used as a withdrawable hinge pin, Fig. 1, for a window, and may have notches 6, 6<SP>1</SP>, Fig. 6, in the guide member to enable the projection of the bolt to register in both bolted and unbolted positions. The bolt may be reversible, Fig. 5, so that it may be used alternatively as a latch bolt or as a dead bolt. When used as a dead bolt or hinge pin it may be used in conjunction with a socket, Fig. 11, in which the hole therein is eccentric to permit adjustment of the position thereof. When used as a hinge pin, the opposing hinge pin need not be withdrawable, and may be in the form of a screwed pin, Fig. 16, with or without an eccentric head.
Patent GB-617286-A (GB)
Title: Improvements in pumping systems for wells
IPC: F04B11/00
Filed: 1946-09-17
Abstract: 617,286. Hydraulic pumping systems. BENDIX AVIATION CORPORATION. Sept. 17, 1946, No. 27877. Convention date, Sept. 24, 1945. [Class 69 (ii)] [Also in Group XXVIII] An hydraulic pumping system for reciprocating the sucker rod of an oil well pump, which comprises a pair of hydraulic jacks 21, Fig. 5, liaving plungers 20 mechanically connected to a sucker rod 17 and supplied with pressure fluid by a conduit 35 from a reciprocating pump 36 actuated by a reciprocating hydraulic motor 39 supplied with actuating fluid from a high-pressure pump 45 through a pressure line 44 and a four-way valve 43 is provided with a fluid-pressure accumulator 70, connected at its upper end with a constant pressure air line 61 and communicating through its lower end and a conduit 71 with the conduit 35 between the pump and the jack in order to maintain a constant fluid pressure supplied to the jacks. Similarly an accumulator 57 is connected to the pressure line 44 to reduce pressure fluctuations, the air pressure being maintained by a connection 59 to the air line 61. The alternate application of highpressure fluid to alternate ends of the motor 39 actuates a lever 50 through a piston 40, piston-rod 38, cross member 54 and stops 51 and 52 on a rod 53, connected to the member 54, the lever 50 thereby actuating a cam 125, Fig. 2, to place conduits 41 and 42 alternately in communication with the pressure line 44 and the exhaust line 46 through poppet valve assemblies 100-103, each of which is provided with a slotted skirt 109 to provide a gradually increasing opening for the flow of fluid to control the deceleration of the piston 40. Should the jack plungers 20 drop below their normal lower limit due to loss of fluid, replenishment is effected by the valves 77 sealing the conduits 35, thereby causing the continued fall of the plungers 20 to effect a rapid rise of pressure in the jack 21, which is applied through conduits 81 to a pressure actuated valve 82 adapted to open under high pressure to permit fluid to flow from the pump 45 through the pressure line 44 and a conduit 86 to the conduit 35. Rapid deceleration of the motor piston 40 at the end of its stroke is produced by means of springs 132 and 133 which allow the stops 51 and 52 to slide on the rod 53. The stroke of the jack plungers 20 can be varied by adjusting the position of a collar 137 on the rod 53. The complete unit for reciprocating the sucker rod may be made readily movable between an operative position in which it is connected to the sucker rod and a servicing position to allow for pulling the pump out of the well and cleaning the well &c. The pumping speed can be controlled by adjusting a byepass valve 98.
Patent GB-603532-A (GB)
Title: Improvements in mountings for rotary card index files
IPC: A47B63/06
Filed: 1945-10-23
Abstract: 603,532. Cabinets. KRAFT, G. E. C. Oct 23, 1945, No. 27947. [Class 52(i)] [Also in Group XV] A mounting for a rotary card index file c comprises a housing a closed by a boxlike cover b pivoted inside the housing, which cover supports the pivot for the file c further inside the housing than its own pivot in the closed position so that when the cover is pivoted open, the file moves with it to a position partly outside the housing. Shown in the open position in Fig. 4 and closed in Fig. 5, the cover b consists of front walls 1 and upper and lower parallel plates 2, 3 which are pivoted at 4 between two frames 5 fixed inside the housing a, the file c being pivoted at 7 between the two plates 2, 3. A handle 6 is provided for operating the cover. The housing may form part of a case, desk, piece of furniture or inner wall of a building and may be a corner as shown, or may be frontally disposed. The mounting may be horizontally or vertically disposed.
Patent GB-223415-A (GB)
Title: Improvements in domestic wringing and mangling machines
IPC: D06F45/18
Filed: 1923-11-07
Abstract: 223,415. Woolfall, H. H., Woolfall, E., and Mercer, T. T. Nov. 7, 1923. Mangles and wringers, driving-gear for.-The lower roller spindle p is driven from a driving shaft c which carries a flywheel, not shown, through a counter shaft k and chain and sprocket gearing. The counter shaft is carried in a block m, Fig. 3, which may be made to slide in guides formed in an extension of a bracket a, which is attached to the side frame of the machine and which carries a bearing c<1> for the driving shaft. The block m is caused to slide by rotating a screwed rod n, which is provided with a handle o so that the tension on the chains g, t can be adjusted.
Patent GB-170488-A (GB)
Title: Improvements in envelopes for sending post cards and the like
IPC: B65D27/04
Filed: 1920-10-04
Abstract: 170,488. Chambon, H. Oct. 4, 1920. Envelopes.-In a paper sheet or blank of the kind adapted when folded to enclose one or more postcards &c. bearing postage stamps exposed for obliteration through openings in the blank, the openings 4 are cut away on three sides leaving integral flaps 5 behind which the postcards are positioned. The portion 3 of the blank is notched as shown at 6 so that on folding down the side flaps 2 and gummed flap 1, the latter adheres to the postcards and effectively retains them in position. The blank may be in the form of an ordinary letter-card, or it may. have tapered closing-flaps to economize paper. Instead of the openings 4 being cut in the direction of the length of the postcard, they may be cut in the direction of its width. In some cases the openings are smaller than the stamp, so that when affixing the stamp it adheres both to the postcard and to the blank. In place of the notches 6, holes may be provided. The blank may have advertisements upon it.
Patent GB-1095841-A (GB)
Title: Improvements in or relating to electric signal detecting circuits
Inventor: JONES SYDNEY
IPC: G01S3/787
Filed: 1951-11-30
Abstract: 1,095,841. Phase discriminators. MINISTER OF SUPPLY. Nov. 20, 1952 [Nov. 30, 1951], No. 28153/51. Heading H3A. The detection of a star having a background of high intensity is effected by a chopper and P.E. device associated with a phase sensitive circuit, the output of which has a variable component corresponding to the angular position of the star. The disc 17, having 9 and 5 sectors in separate halves, is used to provide the chopped illumination from the star. The resultant signals are applied to terminal 5 of the circuit, Fig. 3. The times, or phases, of the frequency changeover points produced in the chopped signals due to the different sector numbers, determine the angular position of the star. The output from 16 comprises a fixed component and a variable component corresponding to the star position. The latter may be neutralized by the rotation of the chopper disc about its centre, to measure the star position. In Fig. 3, the phase-sensitive rectifiers 6, 7 receive the star signals through terminal 5 and reference signals from the chopper-synchronized circuit 8.
Patent GB-1393675-A (GB)
Title: Alkanolamine derivatives
IPC: C07C275/34
Filed: 1971-06-16
Abstract: 1393675 #-adrenergic blocking medicines IMPERIAL CHEMICAL INDUSTRIES Ltd 26 May 1972 [16 June 1971] 28205/71 Heading ASB [Also in Division C2] Pharmaceutical compositions, in the form of tablets, capsules, orally-acceptable solutions, suspensions or emulsions, injectable solutions, suspension or emulsions, dispersible powders, sprays or aerosols, contain novel alkanolamines or pharmaceutically acceptable acid addition salts thereof of the formula: wherein R<SP>1</SP> is C 3-5  alkyl or C 3-5  hydroxyalkyl which are branched at the alphacarbon atom or C 3-5  cycloalkyl; R<SP>2</SP> is C 1-10  alkyl or C 2-6  alkenyl; and R<SP>3</SP> is H, halogen, OH, CN, C 1-6  alkyl, C 1-6  alkoxy, C 1-6  alkylthio, C 2-6  alkenyl, C 2-6  alkonyloxy or C 7-10  aralkyl; provided that when R<SP>3</SP> is H, halogen or C 1-6  alkyl, R<SP>2</SP> is C 2-6  alkenyl, in association with pharmaceutically acceptable diluents or carriers. The compositions may also contain other active ingredients selected from sedatives, for example phonobarbitone, moprobate, chlorpromazine or a benzodiazepine, vasodilators, for example glyceryl trinitrate, pentaerythritol tetranitrate or isosorbide dinitrate, diuretics, for example chlorothiazide, hypotensive agents, for example reserpine, bethanidine or quanethidine, myocardial depressants, for example quinidine, agents used in the treatment of Parkinson's disease, for example benzhexol, cardiotonic agents, for example digitalis preparations, or sympathomimetic bronchodilators, for example isoprenaline, orciprenaline, adrenaline or ephedrine. The compounds possess #-adrenergic blocking activity.
Patent GB-978828-A (GB)
Title: Power-driven dry shavers
IPC: B26B19/04
Filed: 1963-07-17
Abstract: 978,828. Dry shavers. BRAUN A.G. July 17, 1963 [July 18, 1962], No. 28234/63. Heading B4B. A dry shaver comprises a cutter block 1 mounted on a pin 7 projecting from a reciprocable slide 6 and biased towards a foil plate 4 by a spring 2, the slide being connected to a driving shaft 9 and guided in its reciprocable movement by means of balls or rollers 13, 14, carried in grooves 12, 15 formed in opposite faces 6a, 6b of the slide and in faces 11, 16 of a cap 10 and plate 17 respectively. The slide has a fork 8 into the slot 8a of which extends an eccentric pin 23 carried on the shaft 9 which is driven by motor 22 ; the pin may be replaced by a rocker arm. The cutter block is rotatably mounted on a pin 21 which is carried in the arms of a U-shaped member 20 rotatably mounted on the pin 7.
Patent GB-238109-A (GB)
Title: Improvements in or relating to shaft haulage skips
IPC: B66B17/08
Filed: 1924-11-25
Abstract: 238,109. Marks, E. C. R., (Maschinenbau- Anstalt Humboldt). Nov. 25, 1924. Shoots.- A skip a is filled at the bottom of a mine shaft from an auxiliary bunker n of the same capacity through a shoot o which is pivoted at p and is raised by the ascent of the skip to close the bunker. The shoot is provided with pivoted guides q held in the operative position by springs to engage without shock a roller t on the skip.
Patent GB-749275-A (GB)
Title: A tool for use with rotary paint applicators
IPC: B44D3/00
Filed: 1953-10-14
Abstract: 749,275. Combination tool. LENG, A. S. Oct. 13, 1954 [Oct. 14, 1953], No. 28286/53. Class 61 A tool for use with paint rollers comprises a, metal stem a having a bowed part a<SP>1</SP> forming a scraper for cleaning the fabric covering of the roller, a part a<SP>2</SP> shaped to form a lid opener, and a part a<SP>3</SP> which forms a spanner, Fig. 5, or to which is attached, e.g. by a welding, a spanner c, Fig. 1. The spanner is for actuating a nut on the spindle of the roller..
Patent GB-744954-A (GB)
Title: Process for the production of printing plates or cylinders for photogravure printing
IPC: G03F5/20
Filed: 1953-10-14
Abstract: 744,954. Producing photo-mechanical printing surfaces. KAULEN, R. Oct. 14, 1953 [Oct. 16, 1952], No. 28323/53. Drawings to Specification. Class 98 (2). Intaglio printing plates or cylinders are made by printing a diapositive half-tone original and a screen for producing doctor lands one after the other onto a light-sensitized colloidal layer lying, on a metal underlayer, to produce in the case of the screen hardened lines extending downwards into contact with the metal; subjecting the colloidal layer to prolonged treatment with water until the unhardened parts of the layer below the hardened parts and separated by the hardened screen lines are dissolved and fully washed out and the hardened parts sink down and are directly deposited on the metal, and then etching the metal through the hardened image parts.
Patent GB-1535906-A (GB)
Title: Tension indicating device
IPC: F16B31/02
Filed: 1977-07-06
Abstract: 1535906 Tension indicating EATON CORP 6 July 1977 [23 July 1976] 28330/77 Heading G1W [Also in Division F2] A device for visually indicating if tension in a bolt 12 is within a predetermined range comprises a helical spring washer 17 with its axial length at its circumference constant and greater than the axial length of the remainder of the washer and indicea marks 19, 20 on the free ends of the outer surface. The tension of mine roof bolts is within the range if the alignment of the marks is within pre-set limits. Electrical switches may be connected to the devices.
Patent GB-1300199-A (GB)
Title: Handle structure for spring mattresses and the like
Inventor: KERR EDWARD O
IPC: A47C31/08
Filed: 1971-06-17
Abstract: 1300199 Mattress handles E O KERR 17 June 1971 28338/71 Heading A4M A mattress handle comprises a hand-grip strap 22 provided with a hole through each end 24, the holes receiving grommets 20 fitted in the mattress side, elongate connecting elements 30 each having a shank 32 extending through a grommet 20 and provided at one end with a head 42 which bears on the outer end of a grommet 20, and a connecting rod 50 which engages slots 36 in the inner ends of the connecting elements 30 and passes through intermediate turns of coil springs 10 of the mattress to secure the handle to the mattress. The shank 32 carries projections 46 which engage the inner surface of a grommet 20 and resilient fingers 48 which snap into engagement with the inner end of a grommet 20 when the shank is pushed therethrough.
Patent GB-997202-A (GB)
Title: Calcium silicate product and method of preparing same
Inventor: LINDEN CARL RENE VANDER
IPC: C09C1/28
Filed: 1962-07-24
Abstract: Hydrated calcium silicate defined below, is reacted with aluminium sulphate at at least 350 DEG  F., preferably between 450 DEG  F. and 550 DEG  F. in an amount equivalent to and for a period sufficient to effect reaction with at least 5%, preferably 7 1/2 % to 60% by weight of the total CaO component of the hydrated calcium silicates.  The product is particulate.  The initial silicate is the hydrothermal reaction product formed from an aqueous suspension of lime and a reactive siliceous material at 350 DEG  F. at least.  Siliceous materials may be quartz, diatomaceous earth, or preferably, xontolite, or a synthetic composition of formula:-2CaO.3SiO2.1-2.5H2O. It is preferred to carry out the reaction in aqueous medium and the reaction according to the invention may be performed in the same reaction vessel after forming the calcium silicate by adding the necessary aluminium sulphate, and setting up the essential temperature conditions.  In the examples the formation of the calcium silicate and immediate alum after treatment are described and comparative data is presented on the effect of alum treatment at various levels on high temperature calcium silicates, as well as a low temperature calcium silicate, which latter is outside the scope of the invention.
Patent GB-319503-A (GB)
Title: Improvements in flat link chains
IPC: F16G13/06
Filed: 1928-10-03
Abstract: 319,503. Panzireff, N. K. Oct. 3, 1928. Driving-chains with separate joint pins.-A chain capable of being dismantled readily comprises link plates having two elongated holes 2 provided with wider parts 3 near the middle of the link for the insertion of the pins 5, the contracted neck portions 6, Fig. 5, of which enable them to slide to the ends of the link, and the accidental withdrawal of the pins is prevented by inserting blocking-pins 8 into central holes 4 in the links, and if necessary fitting washers 9 to the pins 8 to cover the wide parts 3 of the holes, as shown in Fig. 2. Rollers may be mounted on the pins 8 to enable these to be used, like the pins 5, for engaging sprocket teeth.
Patent GB-1082555-A (GB)
Title: Improvements in or relating to hair curlers
Inventor: HUDSON WILLIAM
IPC: A45D4/16
Filed: 1965-07-05
Abstract: 1,082,555. Heating hair curlers. GEORGE E. TAYLOR & CO. Ltd. June 27, 1966 [July 5, 1965], No. 28365/65. Heading A4V. A hair curler 31 (Fig. 2) having a generally cylindrical tubular former in combination with a heating means therefor which includes a stem 16 over which the curler is fitted, is provided with a latch 38 to retain the curler in a predetermined position on the stem against the action of a force tending to move it axially relative to the stem, the latching including or being controlled by a bimetallic element 36, the heat-induced deformation of which, when a certain temperature is reached, releases the latch and permits the curler to be displaced. The latch may be situated on the curler or on the stem. The force against which the latch acts may be a spring or may be gravitational. The curler and stem may optionally be tapered so that when the curler is displaced axially by the spring it moves clear of the stem. The heating means may comprise a base having several stems, the base being heated by an electrical element 17 which is a flat metal ribbon between sheets of mica or a similar insulating material.