baber/WOPTO huggingface dataset:
Patent GB-352532-A (GB)
Title: Improvements in and connected with guards for circular saws
IPC: B27G19/02
Filed: 1930-04-10
Abstract: 352,532. Machinery guards. MAGUIRE, R., 28, St. Mungo Street, Townhead, Glasgow. April 10, 1930, No. 11372. [Class 80 (iv).] An adjustable guard for a circular saw O comprises a U-section member C with a sighting hole C<1> slidably carried on the inclined front of a bracket A, to which it is clamped by a screw D. The reverselyinclined rear face of the bracket A has a slot T and is held on the transverse support B by a clamp S, being adjusted by a screw E rotatably carried in lugs H on the part B and engaging a nut F on the bracket. The riving-knife I, which is guided below the bench Q by a slotted member (not shown), has' pivoted and sliding engagement respectively with pins K, L and is clamped by wing-nuts K<1>, L<1>, a plate M with a sighting-slot N being carried on these pins. Fig. 4 shows the parts C, I adjusted to suit a small or worn-down saw.
Patent GB-261614-A (GB)
Title: Punching-ball and upright for boxing practice
IPC: A63B69/00
Filed: 1926-04-30
Abstract: 261,614. Weiss, G., and Glisczinski, W. von Chamier-. April 30, 1926. Punching - balls. - A punching-ball 9 is slidablv connected by a ring 7 to a vertical bow 5, which is rotatable mounted on a vertical axle 3 disposed at the upper end of an upright 1. A second bow 6 may be provided on the side opposite to the bow 5 to act as a counterweight In a modification, the bows 5, 6 may be formed in one piece and attached only to the lower end of the bearing 4. The ball 9 contains a bladder 12, Fig, 5, which is partially filled with water and is free to move within the case 11.
Patent GB-1300677-A (GB)
Title: Improvements in or relating to a fluid flow control valve
Inventor: BECKETT ROBIN KEITH
IPC: F15B13/04
Filed: 1971-04-26
Abstract: 1300677 Valves ITE IMPERIAL CORP 26 April 1971 11453/71 Heading F2V A valve for controlling a fluid-actuated device M, Fig. 1, comprises a spool 14 for controlling flow from a bore 30 into either one of bores 32 and 34 and out of either one of exhaust ports 36 and 38 depending upon whether the spool is displaced to the left or to the right, the spool being maintained in its displaced position by part of the fluid flowing through bores 40, 42, 50, and into contact with one of the end faces 54 of the spool, the excess fluid permanently escaping to atmosphere through bores 60, 68 and 82, a throttle 46 controls the biasing effect. To move the spool from right to left a piston 84 on the right is moved manually, mechanically, electrically, pneumatically or hydraulically to close the bore 68, whereupon fluid passes through a restriction 62 to act on the right end face 54 of the spool. As the spool is displaced, additional fluid acts on the end face 54 when bore 52 is uncovered. Alternatively, the spool can be displaced by closing the bore 60 with the left piston 84, whereupon the back pressure acts on the right end face 54 of the spool. In another embodiment (Fig. 7, not shown) a diaphragm (104) is used to control the fluid acting on the end faces of the spool. In a modification, Fig. 8, the fluid acting to displace the spool may be supplied from a source 114 separate from that operating the device M. In another embodiment (Fig. 6, not shown) the bores 60 and 68 are connected to pipes (126) and (128) which cooperate with stops (130) and (132) to control the fluid acting on the spool end faces. The valve may move relative to the stops or vice versa to achieve this. In a similar valve, to facilitate movement of the spool, each end face may be acted upon by a piston 204, Fig. 10, which is initially acted upon by fluid flowing through bores 68 and then additionally by fluid passing through bores 218 when uncovered by displacement of the spool.
Patent GB-264051-A (GB)
Title: Improvements in alternating current rectifiers
IPC: H01L21/14
Filed: 1926-05-01
Abstract: 264,051. Gill, E. R. May 1, 1926. Converting electric currents. - Crystal rectifiers suitable for charging storage batteries from alternating current mains comprise a crystal element produced by sawing thin sheets from a crystalline mass such as pyrites, scoring intersecting lines on the sheets and fracturing along the lines to produce slabs 10 having abraded faces and unmodified fractured edges. The slabs 10 are mounted in metal holders 11 which bear on the abraded faces, and a pointed contact member 15 which may be of silver carried by metal strip 13 provided with a pressureadjusting screw 17 is brought to bear on the unmodified edges. The abrasion may be effected by grinding on an emery wheel and serves to reduce the resistance of the contact between the crystal and its holder as well as to avoid nullifying the rectifying effect on the one side by an equal effect on the other by destroying the sensitivity of the crystal at the points of contact with the holder. The rectifying effect may be further improved and stabilized by subjecting the crystal to a forming operation before use consisting in passing through the contact member 15 and crystal a higher current than that normally to be dealt with for a period of about twenty four hours. A number of rectifying couples may be connected in series as shown in Fig. 4 according to the voltage of the supply source. Fig. 6 shows an installation for charging a battery 24, the installation comprising a transformer 22, 23 and a number of rectifying units connected in parallel through fuses 21 to busbars 19, 20, each unit comprising two rectifying couples in series.
Patent GB-352539-A (GB)
Title: Method of and means for filling bottles or other containers
IPC: B67C3/26
Filed: 1930-04-11
Abstract: 352,539. Delivering measured quantities of liquid. ANGEL INTERNATIONAL CORPORATION, 230, Park Avenue, New York, U.S.A.-(Assignees of Schneider, A. M. ; 680, East 235th Street, New York, U.S.A.) April 11, 1930, No. 11576. Convention date, April 22, 1929. [Class 106 (v).] In bottling &c. apparatus the reservoir discharge tube 11, through which measured quantities of liquid are discharged by a vertically reciprocable cup which surrounds the tube, is provided with a nozzle outlet in which is situated a fluted conical member 20 the smaller end of which points inwardly. The flutes 21 are preferably of angular form, to present maximum resistance to whirling, and are formed to converge towards a vertex lying in the axis of the discharge tube. The conical member is secured to a collar 23 which is held in a recess 24 by a split retaining-ring 25 which also engages a corresponding recess in the nipple end 22.
Patent GB-1492453-A (GB)
Title: Bobbin assembly
IPC: B65H59/04
Filed: 1975-03-20
Abstract: 1492453 Braking supply bobbins ROCKWELL INTERNATIONAL CORP 20 March 1975 [16 May 1974] 11576/75 Heading D1T Between each of the bobbins 14 on the shaft 12 are friction washers 44 that are axially displaceable along the shaft 12, the washers 44 being keyed to the shaft by tonques projecting into a longitudinal groove extending along the whole of the length of the shaft. The ends of each bobbin 14 include a brake washer 22. The brake washers 22 and friction washers 44 may have a low coefficient of friction so that a large axial force is necessary to generate braking forces of a small magnitude. Such an arrangement is useful when the bobbin assemblies are mounted on a turntable and the weight of the bobbins would otherwise effect the braking action of the washers 22 and 44.  At each end of the shaft 12 are end means 32 comprising a spacing washer 34, a tension disc 36, a limit washer 38 and a spring washer 40. The spring- constant of the washer 40 is chosen such that initial compression will cause it to generate braking forces having the smallest magnitude. Further compression of the end means 32 causes the spring washer 40 to collapse. The tension disc 36 is then compressed so that braking forces of a higher magnitude will be produced.
Patent GB-327026-A (GB)
Title: Improvements in the manufacture and production of urea
IPC: C07C273/02
Filed: 1929-04-15
Abstract: 327,026. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 15, 19'29. Urea is produced by mixing carbon oxysulphide and ammonia, at least one of which is at least in part in liquid state, and heating the mixture under pressure preferably to 80-120‹ C In the examples, (1) ammonia and carbon oxysulphide are liquefied in an iron pressure vessel by cooling with liquid air and then heated to 120‹ C. in an oil bath; or the two gases may be liquefied separately by compression and cooling with water and introduced into the pressure vessel where they form ammonium thiocarbamate which is converted into urea by heating to 80-120‹ C.; (2) ammonia is liquefied in a pressure vessel, gaseous carbon oxysulphide is introduced and the apparatus is then heated to 120‹ C. It is stated that it is known that ammonia and carbon oxysulphide unite to form ammonium thiocarbamate.
Patent GB-826243-A (GB)
Title: Process for producing -e-aminocaproic acid from waste products of -e-caprolactam production
Inventor: SCHAFFLER ALFRED
Filed: 1956-04-17
Abstract: <PICT:0826243/III/1> An apparatus for separating an aqueous alcoholic solution of e -aminocaproic acid into acid and alcohol phases comprises a vaporizer 4 and a separator 5, from which alcohol vapours are fed to a rectifier column 17 and aqueous alcoholic acid is led to a second vaporizer 14.  Aqueous alcohol vapours leaving the latter are conducted to the sump of the rectifier column 7 and the aqueous acid remaining is passed from this second vaporizer to a cooling vessel 16, in which a crystal sludge is formed which may be separated from the mother liquor in the centrifuge 17.ALSO:e -Aminocaproic acid is obtained by treating waste products p  obtained from e -caprolactam production with sulphuric acid, releasing the amino acid so formed by neutralization with ammonia, precipitating and separating the ammonium sulphate formed with a water-soluble alcohol, and removing the impurities by oxidation with hydrogen peroxide or adsorption with activated carbon.  The process is particularly applicable to the distillation residues obtained as waste products in the refining of e -caprolactam, these comprising mainly lactam, amino acid and the substances used for refining.  The alcoholic e -aminocaproic acid solution formed is preferably evaporated in an apparatus which allows the recovered alcohol to be re-used directly for the precipitation of ammonium sulphate.
Patent GB-1195605-A (GB)
Title: Hydrostatic Cooker Conveyor System
Inventor: MENCACCI SAMUEL ALFRED
IPC: A23L3/04
Filed: 1968-03-11
Abstract: 1,195,605. Sterilizing apparatus. INTERNATIONAL MACHINERY CORP. S.A. 11 March, 1968 [14 April, 1967], No. 11667/68. Heading A2D. [Also in Division B8] Cans C are conveyed in multi pocketed carriers affixed to an endless chain through a sterilizing apparatus comprising a treatment chamber 38 which includes an inlet or pre-heating leg 40, a sterilizing leg 42, and a discharge or cooling leg 44. The chamber 38 is filled with water through a conduit 45 and the water in the sterilizing leg 42 is heated by steam which enters through a manifold 46. A pump P is connected 'to opposite ends of the leg 42 to circulate the water in the leg in the opposite direction to the direction of movement of the carriers. Steam and cold water respectively are added to the inlet and outlet legs 40, 44 to maintain the desired temperature gradient therein commiserate with the ambient temperature and the sterilizing temperature. (For Figure see next page.)
Patent GB-220035-A (GB)
Title: Improvements in or relating to means for raising and lowering well casings, well boring tools and the like
IPC: E21B19/06
Filed: 1923-05-01
Abstract: 220,035. Marks, E. C. R., (Dunn Manufacturing Co.). May 1, 1923. Bore-hole apparatus. - Means for lifting well boring tools, well casings &c. comprise a body member 4, a door 8 connected thereto by a pivot 9, a yoke 10 pivoted to the body and a lever 12 loosely pivoted to the door by a pin 13 and having hooks 14 engaging the yoke 10 to form a fulcrum to permit cam members 15 to close the door. Pivoted screw and nut mechanism 19, 20 may engage the lever 12 to lock the latter. On disengaging the parts 10, 14, 19, 20, the hooks 14 may be forced against a part 25 of the body to open the door.
Patent GB-167236-A (GB)
Title: Apparatus for use in drying moulds
IPC: B22C9/12
Filed: 1920-04-28
Abstract: 167,236. Keith, J., Keith, G., and Bain, D. B. April 28, 1920. Gaseous-fuel furnaces.-An apparatus for supplying a mixture of hot air and combustion products for use in drying moulds comprises a casing B having an internal gas burner D, the head C of which is in the form of a cup with radiating fins extending to the outer casing so that they are cooled by the air to be heated. The casing B is coupled to a fan A, and the burner is in the form of an injector connected to a gas supply by the pipe F and open at the end facing the fan. The relative quantities of air supplied to and around the burner can be controlled by a hit and miss damper E, or by a diaphragm having openings of predetermined size. A governor G as described in Specification 16711/15 may be used to ensure a correct mixture in the burner, and to ensure safety in lighting the gas, a jet, supplied from the same source as the governor, is employed to project a flame through the aperture I before the main gas supply is turned on.
Patent GB-570892-A (GB)
Title: Improved flexible impregnated fabric suitable as a substitute for rubber or leather and method of manufacturing same
IPC: D06M15/39
Filed: 1943-07-21
Abstract: 570,892. Coated fabrics. SNOW, H. July 21, 1943, No. 11901. Convention date, Dec. 2, 1942. [Class 140] [Also in Group XXIII] A flexible moisture and wear resistant fabric suitable as a substitute for rubber or leather is made by impregnating and coating a woven fabric with an oil-modified thermosetting synthetic resinous material hardening the resinous material, and surface-abrading the coated fabric to remove a portion of the surface coating. The resulting surface is smooth, non- glossy, has a light nap, resists skidding, and is readily glued to other surfaces. Phenol-and urea-adehyde resins modified with drying oils, may be applied from a cold or hot solution with or without vacuum. The fabric may be cotton, hemp, ramie, jute, flax, or sisal. The cured resin-treated fabric 19 is drawn from a reel 28 by a driven fluted roller 18 which presses it against a grinding wheel 17 driven by a motor 16, and is wound up on a reel 29. The roller 18 is mounted on a bed adjustable to and from and also transversely of the grinding wheel 17. Alternatively, both faces of the cured fabric may be simultaneously ground by pressing it between two closely spaced flat-faced grinding wheels, or a cylindrical grinding wheel may act on the inner or concave side of the fabric. The ground face may be cleaned by a suction nozzle and rotary brush. The product may be used as gasket material, for covering floors or decks, for shoes, luggage, or harness.
Patent GB-1493176-A (GB)
Title: Cooling tower
IPC: F28D1/04
Filed: 1975-03-21
Abstract: 1493176 Cooling towers G ERNST 21 March 1975 [23 March 1974] 11914/75 Heading F4K A cooling tower has at its upper end a crown portion 12 which is internally tapered upwardly towards the rim 11 of the upper opening of the tower, the ratio between the axial length (H) and the largest internal diameter (D) of the tapered crown portion lying between the limits and the ratio F 2 /F 1  between the smallest and largest internal cross-sectional areas of the tapered crown portion is not less than 1/2. The arrangement may include also, wind deflectors such as 14, 15, Fig. 3 (e.g. as described in Specification 1,493,177, disposed externally of the crown and substantially at the level of the tapering portion 12. The intention is to avoid penetration of cooler ambient air into the tower air-outlet opening during high wind conditions.
Patent GB-1132155-A (GB)
Title: Improvements in or relating to electro-acoustic devices
Inventor: ROBERTON JAMES SAMUEL PATERSON
IPC: H04R29/00
Filed: 1966-03-18
Abstract: 1,132,155. Testing receivers. STANDARD TELEPHONES & CABLES Ltd. 18 March, 1966, No. 11979/66. Heading H4J. A rocking armature telephone receiver is tested by applying a single-frequency audiofrequency signal to the energizing coils of the receiver, together with a biasing current to reduce the sensitivity of the receiver, and the resultant output of the receiver is used to determine the length of one or both gaps. In one arrangement, current varying about zero at approximately 5 c/s. with a maximum amplitude sufficient to bias the armature towards either of the polepieces by a distance equal to a predetermined minimum air gap length (e.g. 2À5 mils.) is applied to the energizing coils of the telephone receiver in parallel with a 1000 c/s. signal current. If the air gaps are equal and greater than the desired minimum the receiver sensitivity is reduced by equal amounts by both positive and negative bias current. If one air gap is less than the other the sensitivity is reduced at the extreme excursion of the armature and also at the point of zero bias. By these effects the air gap lengths and the state of their unbalance may be determined. If the unbalance is such that one air gap is less than the minimum desired, then the armature will strike a polepiece while the bias current is less than a maximum value, reducing the sensitivity to zero. A similar effect is produced by extraneous matter in an air gap. The receiver sensitivity is observed on an oscilloscope. Alternatively, receivers are placed one at a time in a jig (30), Fig. 3 (not shown), where there is applied to its energizing coils a 1000 c/s. signal from an oscillator (31) with a train of bias current pulses from a source (32). The pulses are square wave of alternating polarity at a frequency of 5 c/s. The receiver output is detected by a microphone (33) whose output signal is amplified and converted to a negative D.C. level in a detector (34). This D.C. level is positive going during the intervals when the receiver sensitivity is reduced. If a gap length is less than the required minimum, or the armature is sufficiently obstructed by extraneous matter, the receiver sensitivity reduces to zero and the detector output level rises to earth. The detector output is passed to a D.C. level discriminator circuit and trigger circuit (35). When the detector output level rises to earth the trigger circuit (35) is operated to light a warning lamp or to open a gate for automatic sorting of the receivers.
Patent GB-809684-A (GB)
Title: A collapsible bottle carrier
Inventor: TOMES REGINALD ARTHUR
IPC: B65D71/00
Filed: 1956-04-19
Abstract: 809,684. Cartons. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. April 18, 1957 [April 19, 1956], No. 12025/56. Class 18. A carrier carton is formed from a blank which is symmetrical about a fold line 3, panels 4 on either side providing a combined partition and handle, and panels extending from the panels 4 folding to produce tubular bottle carrying structures held erect by tongues 19 engaging in slots 15. The bottle necks protrude through apertures 14.
Patent GB-1098795-A (GB)
Title: Improvements in or relating to the felting of articles made of keratinic fibres
IPC: D04H1/4266
Filed: 1965-03-22
Abstract: Articles, e.g. berets and blankets, formed wholly or partly from keratinic fibres are felted by subjecting them to a mechanical treatment in a bath comprising a hydrocarbon or a halogenated hydrocarbon, e.g. a heavy petroleum fraction with a boiling point between 100 DEG  and 300 DEG C, trifluorotrichlorethane, trichlorethane, dichloropropane, dichloro difluoroethane, trichlorethylene, tetrachlorethylene and dichlorethylene, until the desired degree of setting is obtained, by repeatedly immersing them in the treatment bath.  The bath may also contain water in a quantity equivalent to 20-60% of the dry weight of the articles treated and an anionic surface active agent, e.g. an aliphatic alcohol sulphate, a cationic surface active agent, e.g. a quaternary ammonium derivative, or a non-ionic surface active agent, e.g. an oxyethylene derivative. The intensiveness of the applied mechanical action being varied by reducing the volume of the treatment bath thus modifying the effect of dropping the articles into it.  The articles may also be subjected to agitation while in the treatment bath.  The process may be effected in an apparatus comprising a vat for containing the treatment liquid and a rotary drum partly immersed in the treatment liquid, the drum being rotated either in a single direction or alternately first one way and then the other and being fitted with internal blades or other means which ensure that when the apparatus is in operation the articles are carried round only as far as a point near the top of the drum.  The apparatus may also comprise means for heating the bath, e.g. an electric or steam heater, means for circulating the treatment liquid, e.g. a pump and feed tank, filters to hold back any solid particles that might be carried along during the process, means for drying the treated goods, e.g. a hot-air drier, and a system for recovering the hydrocarbon or halogenated hydrocarbon.  The treatment may be carried out at 30 DEG -70 DEG C for from 30 minutes to 3 hours at a bath ratio between the weight of the articles dry (in Kg) and the volume of the treatment bath (in litres) of between 1:25 and 1:1.  This bath ratio may be varied during the treatment.  The felting process may be supplemented by one or more associated treatments, e.g. waterproofing, bleaching and softening with the aid of a substituted or unsubstituted amine, or a mothproofing, antistatic or bactericidal treatment.
Patent GB-814571-A (GB)
Title: Spark plug insulators containing zno
Inventor: SCHURECHT HARRY GEORGE
IPC: C04B35/00
Filed: 1957-04-15
Abstract: 814,571. Ceramic compositions. CHAMPION SPARK PLUG CO. April 15, 1957 No. 12196/57. Class 22. A zinc oxide-containing sintered ceramic insulators contains at least 60 per cent. of a major component having a composition within the shaded planes of Figs. 4 and 5, and up to 40 per cent. of a minor component consisting of not more than 5 per cent. of a boron oxide, or not more than 20 per cent. of one or more of the oxides of titanium, zirconium, cerium and tin, and not more than 20 per cent. of one or more of strontia, baria and calcia, and wherein in the insulator, the sum of the moles of the oxides of titanium, zirconium, cerium and tin is not more than half the sum of the moles of one or more of alumina and magnesia plus one twentieth the moles of beryllia.
Patent GB-1104493-A (GB)
Title: Time delay switching device
IPC: H01H50/88
Filed: 1966-03-21
Abstract: 1,104,493. Electromagnetic relays. SQUARE D CO. 21 March, 1966 [29 June, 1965], No. 12263/66. Heading H1N. A time delay device as disclosed in Specification 1,068,896 is modified by making the slide (6, Figs. 2, 4, 6, and 10, not shown) in a single piece of synthetic organic plastic instead of three pieces of relatively heavy metal, and by omitting two slide-return springs (13, Fig. 4, of Specification 1,068,896), and omitting the poppet valve return spring (40, Fig. 8, of said Specification), shoulders (56, Fig. 8, not shown), being provided so that the return spring (68, Fig. 1, not shown), of the switch (64) returns the valve.