baber/WOPTO huggingface dataset:
Patent GB-585127-A (GB)
Title: Improvements relating to liquid fuel supply systems for internal combustion prime movers
IPC: F02C7/22
Filed: 1945-02-07
Abstract: 585,127. Liquid fuel supply systems. LUCAS, Ltd., J., and LAWRENCE, O. N. Feb. 7, 1945, No. 3127. [Class 75 (i)] [Also in Group XXIX] In a liquid fuel supply system comprising a variable delivery pump a, one or more swirl jets i, and controlling means for automatically regulating the quantity of liquid supplied to the jets responsive to liquid fuel pressure and other conditions such as atmospheric pressure, a bye-pass 20 is provided to allow the desired amount of excess liquid to pass from the pump to the jets, and an automatic valve 25 is provided for controlling the flow in an excess-return duct 22, the valve being responsive to a pressure difference set up in the duct. The pump controlling means comprises a body part n having three chambers o, p, q, a diaphragm x dividing the chamber p into two compartments p', p<2>, connected by the bye-pass 20 with a restricted orifice 21 for controlling the flow through the bye-pass. The chamber o communicates with the compartment p<1> through a port z and with the compartment p<2> through a port 2 and a notch 3 in a piston t. Axial or rotary displacement of the piston t will vary the effective area of the port 2 and so vary the pressure difference between the compartments p<1>, p<2>, causing deflexion of the diaphragm x. This deflexion is made to operate a valve k through lever arms 6, 4, a piston b moving to increase the pump output if the valve k is closed and reduce it if the valve is open. If the liquid fuel pressure increases, the pressure in the compartment p' increases, and the diaphragm is deflected to open the valve k and decrease the pump output. If the barometric pressure increases, the device 8, which comprises a series of capsules responsive to atmospheric pressure, operates to open a release valve 13 and so allow more fuel to pass along the byepasses 10, 12. This causes a pressure difference between the two sides of the piston t which therefore moves to deflect the diaphragm x and operate the valve k. Some of the fuel may also be bye-passed to the compartment p<2> through a passage 17. The diaphragm may also be made responsive to temperature conditions by any convenient thermally responsive means. A diaphragm 28, which divides the compartment 26<2> into two parts connected by passages 31 with the excess-return duct 22 on opposite sides of a restricted orifice 24, is responsive to the pressure difference set up in the duct and acts on a stem 30 to operate the valve 25 and so control the amount of liquid fuel flowing through the compartment 26'.
Patent GB-743115-A (GB)
Title: Improvements in and relating to tubes formed by helical winding
IPC: B31C3/00
Filed: 1951-02-09
Abstract: 743,115. Cutting tubes. ROBINSON, E. B. May 9, 1952 [Feb. 9, 1951], No. 3156/51. Class 31 (1). [Also in Groups XXVIII and XL (b)] In apparatus for producing rims, i.e. lengths of tubing appropriate to form the bodies of containers by winding strip material helically on a mandrel to form a tube, and cutting the tube into lengths under the control of marks or irregularities on the strip or the tube, the control means is caused to be alternately in operative and inoperative states for such periods that the control means is operated by every mark, alternate marks only or by every third mark, and so on. The control means may be rendered operative immediately before a control mark arrives at a detecting position and inoperative immediately the cut is completed, and may remain inoperative until immediately before the next control action. Forming the tube.-A web 5, Fig. 1, bearing patterns printed at an angle with trim spacing between certain patterns is drawn off a roll 6 and over a gumming roller 2 to a detector unit 8 (see Group XL (b)) comprising a photoelectric-cell detector 12 adjustable on guides 13, 17 at right angles. The detector is influenced by marks &c. on the strip as in Specification 653,613 and controls the cutting mechanism. Cutting the tube into rims. A circular saw 24, Fig. 5, is moved up to the tube, travels along with it for the cutting operation, and is then withdrawn and returned to starting position. The saw 24 is carried by a motor 22 mounted, with provision for setting relatively to the work, on a bracket 28 carried by an arm 21 rocked about a shaft 31 by cams 42, 43, Fig. 9, engaging rollers 40, 41 on a shaft 37 carrying a frame 36 engaging a roller 34 on the end of the arm 21 which is in two parts connected in adjusted position by a bolt 44. The longitudinal movement of the saw, during which the roller 34 rides in a slot 35 in the frame 36, is effected by a cam 52 rigid with the cams 42, 43 and mounted on and rotated by a shaft 153 driven by variable-speed friction wheels 59, 58 and gears 55. The cam 52 reciprocates a slide, to which the shaft 31 is fixed, and the shaft at the end of its forward stroke engages a plunger to reset the electrical control mechanism. The shaft 153 is clutched to the cam 52 by a ratchet 64 and pawl 65, Fig. 11, whenever a spring- pressed catch 67 is withdrawn by a solenoid 75 acting through links &c. 73, 71, 70, the solenoid being energized under the control of the detector. The shock of starting the cam may be absorbed by a spring 76 situated between members 77, 78 associated with the ratchet. The cam is stopped at the end of a revolution by a pawl which drops into a notch in a ring mounted on the cam with provision for a limited rotation, an inner ring being fixed to the cam, and a spring being interposed between the rings. The pawl is released by means operated by the catch 67 when the cam is ready for another revolution. Specifications 743,123 and 743,170, [both in Group XXVIII], also are referred to.
Patent GB-342520-A (GB)
Title: Improvements in or relating to stripping mechanism for the flats of carding engines
IPC: D01G15/78
Filed: 1930-01-30
Abstract: 342,520. Stripping carding-engine flats. COOK & CO., MANCHESTER, Ltd., and CHARNOCK, C. J., 18, Exchange Street, Manchester. Jan. 30, 1930, No. 3177. [Class 120 (i).] The flats are stripped by a rotatable brush 3, Fig. 1, eccentrically mounted in rotatable b e a r - ings 5, a single driving pulley 7 being provided and the rotation of the brush 3 and of the bearings 5 co-related by gearing 9.. 12, whereby fresh surfaces of the brush bristles enter the flats at successive periods of contact, the movement of the brush also being eccentric in the clearing comb. The brush comprises hair bristles 13 and a, burnishing wire fillet 14 extending the length of the brush in one or more convolutions. The pulley 7 is secured to the bearing 5 and the brush spindle 4 is driven therefrom through the gearing 9 .. 12, the compound pinion 10, 11 being carried bv an arm 4a mounted loosely on the spindle 4. In a modification, the pulley 7 is free on the bearing 5 and rotates a member 15 on the spindle 4, Fig. 2, through a pin 17 engaging a slotted stop 16. An arm 18 carrying a pinion 19 is mounted in the member 15, the pinion 19 gearing with and preferably having one more tooth than the pinion 9, the outer end of the arm 18 being engaged by an arm 20 slotted at the top to ride on a pin 21, whereby, on rotation of the member 15, the pinion 9 is driven to rotate the eccentric bearing 5. The brush may also be traversed.
Patent GB-162772-A (GB)
Title: Improvements in and relating to holders for electric valves used in wireless telegraphy
IPC: H01R33/975
Filed: 1920-02-02
Abstract: 162,772. Macrorie, A. K., and Airey, H. Morris-. Feb. 2, 1920. Vacuum tubes.-A holder for a thermionic valve consists of two springs B carrying bosses A, into which the ends of the valve fit, and coupled together rigidly, for instance, by two adjustable wires D, E with a clip F, to prevent independent motion of the springs. The springs are preferably of flat metal with stirrup portions surrounding the bosses, which are of insulating material lined with felt. One or both springs may be adjusted by means of a slotted fixing piece C. The bosses are formed with slots for the leads which are insulated by glass tubes.
Patent GB-563235-A (GB)
Title: Improvements in cam operated snap-action electric switches
IPC: H01H5/06
Filed: 1943-02-27
Abstract: 563,235. Snap-action switches. SHARP, W. Feb. 27, 1943, No. 3263. [Class 38 (v)] A cam-actuated operating arm 2 with roller 3, is pivoted on a pin 5 upon which also turns a contact arm 4, the end of which bears a pivoted and sliding block 6 from which a rod 7 extends through a trunnion 9 bearing in the end of operating arm 2, a spring 8 being interposed. From the position shown, with contacts 12, 13 engaged, on lifting arm 2 to " break," the contact 12 first is given a sliding and tilting movement, which will break any weld, before the dead-centre links snap over to open the contacts.
Patent GB-1042385-A (GB)
Title: Improvements relating to hammers and the like
Inventor: STEPHENS WALTER RUNCIMAN
IPC: B25D1/12
Filed: 1964-01-25
Abstract: 1,042,385. Hammer handle fixings; hammers. BIRMINGHAM BELTING CO. Ltd. Jan. 25, 1965 [Jan. 25, 1964], No. 3296/64. Headings B4C and B4K.  A hammer comprises a head formed as a tube 10 and filled with a loose material such as shot 16 and a shaft 11 secured to the tube by means of a screw 29 in the end of the shaft engaging with a nut 30 located interiorly or exteriorly of the tube. The shot is retained within the tube by means of closure members 13 secured in the tube by means of screws 26 or rivets 27 and provided with screwed holes 14 for co-operation with the screwed spigots 22 of striking faces 18. The shaft which may be hollow and of plastics material, may be prevented from rotating relative to the tube 10 by means of a pin 12 or the shaft may be non-circular and engage with a correspondinglyshaped recess in the tube. The tube may be of metal such as aluminium alloy, zinc alloy or of a plastics material such as nylon or nylon reinforced with resin-bonded glass fibres. The striking faces may be of steel, copper or lead or of nylon, rawhide or rubber.
Patent GB-553528-A (GB)
Title: Improvements in and relating to sheet metal cores or reinforcements for fibrous sheets
IPC: E04C2/18
Filed: 1942-03-14
Abstract: 553,528. Compound sheet materials. COWAN, A. M. March 14, 1942, No. 3400. [Class 140] [Also in Group X] In sheet material having a sheet metal core with stamped out projections, and a covering on both sides of asbestos or other fibrous material which is secured to the sheet metal core by pressing down the projections, two projections 2, 3 are stamped out of each aperture in a metal sheet 1 and one projection is longer than the other. .Specification 557,179 is referred to.
Patent GB-725818-A (GB)
Title: Bearing alloys and process of manufacturing the same
IPC: C22C18/04
Filed: 1953-02-06
Abstract: A bearing alloy consists of Al 30-66 per cent; Cu from 1/6 -\ba1/4 of the actual Al content; Zn the remainder. The preferred range is Al 30-66 per cent; Cu 5-11 per cent; Zn the remainder.  Commercial purity Zn may be used, i.e. up to 1.5 Pb may be included.  The formed bearing may be heat-treated to 80-280 DEG  C. for at least 3 hours, preferably 24-48 hours.
Patent GB-712777-A (GB)
Title: Lip type lubricant seal for track tractor rollers or other self-contained bearing and lubrication units
IPC: B62D55/15
Filed: 1952-02-11
Abstract: 712,777. Oil seals. CARROLL, W. C. Feb. 11, 1952 [Sept. 25, 1951], No. 3487/52. Class 122(5) An oil seal for a selfcontained bearing and lubrication unit comprises a rigid annular housing 10 having, an inwardly extending radial flange 11 forming a wall at the inner or bearing side of the housing and at least two annular sealing rings 12, 19 disposed within the housing and axially spaced by a rigid annular member 20 having an inwardly extending radial flange forming a wall adjacent the outer side of the housing, the outside face of the outer wall and the inside face of the flange 11 respectively providing an abutment for the outer sealing washer 19 and the inner sealing washer 12, both washers extending beyond their respective abutments to contact the bearing shaft in the form of flexible lips axially deflected towards the outer side of the housing 10 so that they may be deflected by the lubricant pressure in the unit to permit a limited flow of lubricant past the lips to prevent ingress of dirt. A garter spring 18 surrounds the lip 13 of the sealing ring 12 and axial projections 14, 15 on the ring fit in corresponding recesses in the flange 11. When the seal is positioned in its housing the part of the outer face of the outer sealing ring 19 from its outer periphery to a groove 22 is axially supported by a radial flange of the seal housing. Specifications 699,003 and 712,778, [Group XXVIII], are referred to.
Patent GB-259448-A (GB)
Title: Display stand
IPC: A47F5/00
Filed: 1926-02-08
Abstract: 259,448. Ogburn, P. C. Feb. 8, 1926. Card stands.-A stand for supporting a photograph frame, book, card &c. at any desired inclination comprises an L- shaped member C, the horizontal limb of which is slidably received in the bent over edges D of a flat base member A with a bent up end B. One edge D may be extended and provided with a set screw E to further secure the member C. Specifications 25260/09, 194,121 and 225,230 are referred to.
Patent GB-648350-A (GB)
Title: Meat slicing and like machines
IPC: B26D7/32
Filed: 1948-02-09
Abstract: 648,350. Cutting slices in succession. METCALFE IDEAL PRODUCTS, Ltd., and McMILLAN, J. Feb. 9, 1948, No. 3689. [Class 28(ii)] A holder 22 of a meat slicing machine comprises two spiked plates 24, 25, spaced by channel members 26 through which passes a spindle 21 about which the holder rotates to bring either short or long spikes into engagement with the meat. The spindle, which passes midway between the planes containing the tips of the two spike sets, is secured to a support 20 pivoted on an arm 16 which slides by gravity, or under the action of a spring, down a pillar 14. An edge 28 of the plate 25 engages ledges 29, 31 on the support to hold the device firmly in either of its alternative positions, rotation of the holder being preceded by sliding it axially along the spindle against a spring 30 in a cap 33 to disengage the ledge. The support is held in its uppermost position by a catch 18, and may, together with the holder, be swung to the back of the feed table 12. Specification 648,349 is referred to.
Patent GB-1032922-A (GB)
Title: Polymerization of formaldehyde
IPC: C08G2/00
Filed: 1963-01-30
Abstract: Formaldehyde is polymerized by contacting its vapour with acetone in liquid form together with a formaldehyde polymerization catalyst. The liquid may be vigorously agitated, may be anhydrous or may contain up to 5% water. The formaldehyde vapour may be a mixture of anhydrous formaldehyde and an inert diluent or of formaldehyde and acetone. The catalyst may be formic or acetic acid, boron trifluoride, metal halides, metal salts of organic acids, tertiary amines, quaternary ammonium salts, quaternary phosphinium salts, phosphines, potassium hydroxide or carbon dioxide.  The unpolymerized formaldehyde vapour may be vented and returned to the polymerization.
Patent GB-590583-A (GB)
Title: Improvements relating to ceramic resistance bodies and methods of making the same
IPC: C04B35/462
Filed: 1945-02-15
Abstract: Ceramic electrical resistors having a coherent, non-porous structure, high dielectric constants, high power factors and medium to low resistivities consist of a fired mixture containing, as major ingredients, titanium oxide and one or more of the oxides of chromium, vanadium, or copper, with or without iron oxide, the molal proportion of titanium oxide to the other oxides being not more than 20 : 1. The final mass may contain single or double titanates, or one or more titanates mixed with titanium oxide. When two or more oxides in addition to titanium oxide are present, the composition is preferably formed from preformed titanates. Firing-temperatures are dependent on the compositions and the desired properties. By varying the proportions, bodies of differing characteristics can be obtained, e.g., bodies of low resistivity may be used as volume controls for radio circuits, safety valves for high-frequency circuits, dry rectifiers, or photosensitive devices; for resistors for electric furnaces; in assemblies requiring semiconducting surfaces to eliminate static interference etc.; or, due to a variation in the resistance of some compositions in proximity to the human body, as burglar and like alarms. Specification 541,750 is referred to.
Patent GB-1381302-A (GB)
Title: Tyre examination
IPC: G01N23/18
Filed: 1971-02-04
Abstract: 1381302 Testing tyres DUNLOP Ltd 26 Jan 1972 [4 Feb 1971] 3865/71 Heading B7C A method of examining the internal structure of a tyre 1 comprises inserting at least one probe 3 into the region to be examined, taking X-ray pictures of the region from spaced points 5, 6 using an X-ray stereoscope, using the pictures to produce a steresocopic image for viewing and using the probe image as a reference to determine the correct three-dimensional view. The pictures may be projected and magnified through polarizing filters on to a screen and viewed through polarizing spectacles. The probe may be a thin pointed pin notched or stepped at predetermined distances along its length, or may be a fork with prongs of different lengths, each prong forming a probe. In use, the probe or longest prong is inserted to a depth equal to the theoretical depth of the radially outermost cord layers 2, or, where a fault, e.g. an air bubble 8, discovered by preliminary investigation, is being examined, to the estimated depth of the fault.
Patent GB-1113714-A (GB)
Title: Improvements in sealing boots for ball joints
IPC: F16J15/52
Filed: 1967-01-26
Abstract: 1,113,714. Seals. V. LANGEN, [trading as A. EHRENREICH & CIE]. 26 Jan., 1967 [26 Jan., 1966], No. 3870/67. Heading F2B. [Also in Division E2] A sealing boot for use on a universal joint wherein for at least part of its length the joint pin 2 is tapered in a direction away from the housing 1 i.e. tapered section 2b comprises an open-ended sleeve 3 of elastic flexible material e.g. polyurethane, one end being mounted around the joint pin aperture by seating the beading 4 in annular groove 5 and clamping in position by ring 6, the other end being mounted on the joint pin 2 by a beading 7 having annular groove 8 and a holding ring 9 before mounting (Fig. 1) having an internal diameter greater than the external diameter of the sleeve, during mounting along tapered section 2b the sleeve is stretched elastically until the ring 9 becomes seated in the groove 8 (Fig. 2). In another embodiment the holding ring 9 is replaced by one end of an open-ended expansible cup ring arranged to surround the end of the sleeve, the other end of the cup ring being turned towards the joint pin.
Patent GB-1237564-A (GB)
Title: A relief and replenishing component for hydrostatic transmission
IPC: B62D11/18
Filed: 1968-06-14
Abstract: 1,237,564. Variable ratio hydrostatic transmission. CATERPILLAR TRACTOR CO. 14 June, 1968 [14 June, 1967], No. 3982/70. Divided out of 1,237,561. Headings F2C and F2D. In a hydrostatic transmission having ducts 33, 34 connecting an hydraulic motor and pump to form a closed loop, there is a relief unit 240 comprising a central chamber 242 in a housing 200 having ports 243 connecting the housing ends with the ducts 33, 34, the housing ends being closed by spring biased poppet valves 246, each movable to open a line 247 to the drain, and having an orifice 253 leading to a balance chamber 250, the chamber 242 being divided into two compartments 241a by a shuttle spool 242 having projections 242a and movable under the pressure difference between ducts 33, 34 to open one of the valves 246, which also open under excess pressure in one of the ducts 33, 34, the permissible maximum pressure being determined by spring biased poppet valves 252 closing openings 251 to drain in chambers 250. The housing 200 may also include a replenishing unit 201 supply fresh cooled fluid under pressure at 40 to make up fluid lost through leakage and the relief unit 240. The unit 200 only replenishes the hydraulic loop when lines 213 are pressurized, closing valves 209 to drain from balance chambers 208, preventing de-pressuring of the hydraulic loop via lines 205, 207, 208a. Line 213 is pressurized from line 40 via a unit 220 when spool 223 is correctly positioned when the hand brake 222 of a vehicle comprising the transmission is off, and by spool 229 being correctly set initially whence it retains its position so long as the system is pressurized. Spool 229 is initially set by the variable displacement pump of the transmission being set to zero displacement. The unit is dislosed in a hydrostatic transmission with the control systems claimed in copending Specification 1,237,561 and Specification 1,237,563. The valve of copending Specification 1,237,562 is also disclosed.
Patent GB-1531911-A (GB)
Title: Apparatus for and method of carrying out electrolysis
IPC: C25B15/02
Filed: 1976-02-02
Abstract: 1531911 Starting up electrolyzers SOC DE RECHERCHES TECHNIQUES ET INDUSTRIELLES 2 Feb 1976 [3 Feb 1975] 04058/76 Heading C7B An electrolyzer, made up of a stack of cells each separated by a diaphragm into two compartments in which the electrolyte respectively contains hydrogen and oxygen bubbles, is put into operation by an electrical supply circuit comprising means for increasing the current exponentially for a quick start-up. As shown the electrical supply circuit to the stack of cells 7 comprises a bridge of thyristors 2, as a rectifier connected to an A.C. source and supply D.C. to the stack, whose triggers are operated by a control circuit 3 receiving pulses from a comparator 4 emitted as the result of a comparison between a voltage proportional to the current flowing through the cells as supplied by ammeter 5 and a voltage from an exponential potentiometer 6 controlled by a clock 7. The ratio between the gas and electrolyte volumes are thus maintained constant.
Patent GB-270805-A (GB)
Title: Improvements in and relating to apparatus for superheating steam
IPC: F22G1/00
Filed: 1926-02-12
Abstract: 270,805. Croxon, W. C. Feb. 12, 1926. Steam superheater furnaces.-The steam supplied to steam-heated laundry &c. appliances is superheated in apparatus comprising a main casing 1 lined with fireclay and heated by a gas or other burner 7, and a, subsidiary heater 4 supported by flues 3 extending vertically from the casing 1. The steam piping consists of straight pipes 5 within the casing connected together by return bends 6 and a pipe 9 centrally arranged within the subsidiary heater, connected to the piping 5 by a pipe 10. Steam may be preheated in the subsidiary heater before passing to the main heater or may flow through the apparatus in the opposite direction.