baber/WOPTO huggingface dataset:
Patent GB-506339-A (GB)
Title: Improvements in or relating to voice conveyers for telephones
IPC: H04M1/19
Filed: 1937-11-22
Abstract: 506,339. Mouthpieces; acoustic filters. SCHOBER, H. Nov. 22, 1937, No. 32142. Convention date Feb. 13, 1937. [A Specification. was laid open to inspection under Sect. 91 of the Acts, May 23, 1938.] [Class 40 (iv)] [Also in Group XXXVIII] An attachment for the mouthpiece of a telephone transmitter comprises a tubular body incorporating an acoustic filter extending over a portion only of the tubular, body and being in the form of an annular space bounded by inner and outer walls having openings therein for connecting the space to the interior and exterior of the tubular body, the openings extending over a substantial length of each of said walls. The attachment comprises a bent tube 1 connected at one end to the transmitter 12 by means of a resilient ring 11 and at the other end to an acoustic filter 2 formed with a resilient ring 3 to fit the mouth of the speaker. The filter is constructed and dimensioned to damp sounds of low frequency and is constituted by an annular chamber of which the inner wall is formed with narrow slots 7 and the outer wall is provided with small holes 8. A helical spring 6 located in the. annular space stretches the walls of the filter element and the slots 7 are widened when the attachment is in use. The tube 1 has holes 9 covered with pads 10 of sponge rubber which muffle the sounds transmitted to the exterior of the attachment. The pads 10 may be replaced by acoustic filters. In a modification, Fig. 2, the filter is formed by a number ofrings 13 forming chambers which are connected with each other and with the interior of the attachment and the outer air by holes 16, 14, 15 respectively. The resilient ring engaging the mouth may be detachable and connected to the filter by two interfitting tapered metal sleeves which are attached to the ring and to the filter, Fig. 3 (not shown). The rounded portion of the tube 1 may be formed with elongated slots 35 covered by an apertured cap 36 enclosing a mass 10 of damping material, e.g. felt, viscose or sponge rubber. The portion of the tube between the filter and the microphone may be collapsable and formed by a rubber tube supported by a helical spring. In a modified arrangement, Fig. 7, the tube 29 between the filter 30 and the microphone incorporates an amplifier comprising a microphone 31 and receiver 32 constructed to be responsive mainly to the higher speech frequencies which are amplified before they act on the microphone of the transmitter. The operation of the amplifier is controlled by a push-button 39 and an indicating lamp may be illuminated when the amplifier is operative. The spaces in the filter 2, Fig. 1, in the rings 13, Fig. 2, or in the cap 36, Fig. 4, may contain disinfecting and/or aromatic substances, preferably in the form of pellets. Specifications 26779/09 and 30352/09, [both in Class 40 (iv)], are referred to.
Patent GB-391058-A (GB)
Title: A method of running in or smoothing metal surfaces
IPC: B23P9/00
Filed: 1932-11-14
Abstract: 391,058. Grinding and polishing metal surfaces. DAIMLER-BENZ AKT.- GES., Untert³rkheim, Stuttgart, Germany. Nov. 14, 1932, No. 32197. Convention date, Nov. 13, 1931. [Class 60.] A method of running-in, smoothing, or lapping metal surfaces, more particularly the teeth of toothed wheels, bearings, cylinders, or the like, is characterized by the use of tools made of artificial resin such as phenol resin with or without the addition of woven fabrics or fillers. The method is stated to be particularly satisfactory for toothed wheels having inclined teeth. Where a worm is to be smoothed, a worm wheel of artificial resin or the like is employed as the tool. For operating on a worm wheel, a worm of artificial resin &c. is used.
Patent GB-885223-A (GB)
Title: Improvements relating to heat exchange apparatus
IPC: F28D1/02
Filed: 1957-12-09
Abstract: 885,223. Transverse-flow fans. FIRTH CLEVELAND Ltd. Dec. 9, 1957 [Dec. 7, 1956], No. 32251/61. Divided out of 885,222. Class 110 (1). [Also in Groups XIII and XXVII] A blower having a cylindrical bladed rotor 3, Fig. 1, and guide means 9a, 9b coacting therewith to guide air twice through the rotor blades substantially transversely to the rotor axis, passes air through a heat exchange block 1 having end faces 14, 15 the projections of which on to any plane containing the rotor axis form a pair of rectangles each having a pair of sides substantially co-linear with the rotor ends as projected on to that plane. Preferably, the members 3, 9a, 9b set up a vortex V. The members 9a, 9b may be replaced by a guide body or bodies inside the rotor 3. There are guide vanes 11 and block divisions 16. Throttling means are provided in the form of perforated plates 17 relatively movable under thermostatic control. In a modification applicable to a motor vehicle and having an almost completely cylindrical block, air leaving the block can be used to heat the vehicle interior. Fig. 3 shows two blocks 30a, 30b through which air is drawn by a rotor 32, there being a central guide body 33, vanes 38, 34 and walls 35, 36. Fig. 4 shows a rotor 43 which blows or sucks air through a block 40 according as guide bodies 44 are in the full or broken line positions. In Fig. 5 (not shown) the rotor is mounted on a vertical shaft transmitting motion to an I.C. engine overhead cam-shaft and blows air through superposed oil and water coolant blocks to be delivered as thrust if the engine is that of a vehicle. Fig. 7 shows four two-part rotors 60 delivering air through a block 63 having extension vanes 65. Specifications 876,611, 876,612, 876,613 and 876,615 also are referred to.
Patent GB-275071-A (GB)
Title: Improvements in twist drill point grinding and thinning machines
IPC: B24B3/24
Filed: 1926-12-21
Abstract: 275,071. Hunt, H. W., and Hunt, P. Dec. 21, 1926. Twist drills, sharpening. - In a twist drill point grinding machine, after grinding the cutting edges of the drill, the point is thinned by a second grinding wheel without removing the drill from the holder used for the main grinding. The machine consists of a pan a on a column b, the main grinding - wheel e being carried by a spindle d in a bearing c, and having at one end a disc g faced with leather g<1>. In a bracket h on the tray is pivotally mounted, by means of a shank j, a member k carrying a hollow shaft k' in which is journaled a spindle l carrying a second grinding-wheel o, a collar m being provided on the spindle to engage the disc g' under the pressure of a spring n; normally the wheel o is raised by a spring q, as shown dotted in Fig. 1, and in that position the drive collar is disengaged by cam surfaces r and a pin j<1>, but on depression of the spindle, the drive is engaged. A screw k<4> engages a projection on the bracket h to limit the depression of the wheel o. After grinding on the wheel e the drill is moved beneath the wheel o by means of a slide v and lever w; the drill is then turned to operate on the other flute, a lever y engaging notches in a collar x to set the drill correctly. Specification 168,634 is referred to.
Patent GB-506273-A (GB)
Title: Improvements relating to small synchronous electric motors
IPC: H02K7/118
Filed: 1937-11-24
Abstract: 506,273. Alternating-current motors. CHAMBERLAIN & HOOKHAM, Ltd., and JAMES, S. Nov. 24, 1937, No. 32335. [Class 35] Correct rotation of a small synchronous motor for clocks &c. is ensured by the provision of an arm i pivoted at g and resting on a support e, co-operating with a crank pin or other actuating member f rotated by the motor, the arrangement being such that when the rotor rotates in the right direction, the arm is rocked idly by the action of the pin on one side of the arm, but if the rotor rotates in the opposite direction, the pin is arrested by contact with the other side of the arm and the rebound gives the rotor an impulse in the right direction. The support e is constituted by the spindle of a pinion d gearing with a smaller pinion a on the rotor shaft band carrying the crank pin f. The arm may consist of a bent wire coiled about the pivot spindle g and having a second arm j which serves to keep the first within the range of action of the crank pin or it may be a thin metal strip. The arm may be controlled by gravity or by a spring. A counterweighted arm k serving as an indicator may be secured to the spindle y. A single arm moving between a pair of fixed slots may be employed instead of the bifurcated form shown, and either or both the arm and the pin may be rigid. The crank pin may be arranged on the rotor.
Patent GB-1016557-A (GB)
Title: Improvements in or relating to devices for assembling in an instruction register an instruction word to be supplied to an apparatus controlled by logic-circuits,and a method of so assembling a word
IPC: G06F9/44
Filed: 1964-08-07
Abstract: 1,016,557. Selective signalling. SVENSKA AEROPLAN A.B. Aug. 7, 1964 [Aug. 8, 1963], No. 32348/64. Heading G4H. A data word is assembled in a register by a sequence of steps each comprising the selecting, by co-ordinated array of push-buttons, of one of a number of items from an optically displayed table of items, the selecting of any one item causing both an associated pattern of bits to be entered into the register and a further table associated with the item selected to be displayed, whereby the next step in the sequence may be performed. When the data word is assembled depression of a " go " push-button causes the word to be transferred to an associated data processing machine and the initial table of items to be displayed. The embodiment described is concerned with a hospital. A particular patient is selected by buttons 2 on a consol and a table of the various hospital departments is displayed on a screen 8. Selection of a particular department by buttons 9 and 10 causes, for example, a table of the main parts of the human body to be displaced. Selection of the abdominal cavity, for example, by buttons 9 and 10, may cause a new table listing the various organs therein to be displayed. Each selection of an item causes a pattern of 10 bits adjacent the item to be read photo-electrically and these bits, together with the particular buttons 9 and 10 depressed, determine both the bits to be entered into the register and the next table that is to be displayed. The tables are arranged on 32 plates, each plate carrying 16 x 32 = 512 tables. Selection of a desired table is effected by selecting a plate 13, Fig. 5, from a stack of plates and then by appropriately displacing it in two dimensions so as to bring the desired table into the optical axis of a projection system. The necessary displacements are effected by projecting an appropriate stop and driving the member concerned, e.g. rack 20, until a switch ZS on the member strikes the stop and stops the drive. Outline circuits (Figs. 8 and 9, not shown) are described.
Patent GB-160911-A (GB)
Title: Improvements in methods of and means for facing bricks with sand
IPC: B28B11/06
Filed: 1919-12-24
Abstract: 160,911. Allison, F. W., Wilkinson, A., and Eaglescliffe Bricks, Ltd. Dec. 24, 1919. Ornamenting bricks.-Bricks are faced with sand, broken stone, &c. by means of a sand blast fixed to a machine in which the bricks are severed by wire from an extruded plastic bar. Reference has been directed by the Comptroller to Specifications 6601/02 and 10524/07.
Patent GB-1311543-A (GB)
Title: Basically substituted 2,4-1h,3h-quinazolindione derivatives and processes for the production thereof
IPC: A61K31/505
Filed: 1970-07-03
Abstract: 1311543 Basically substituted 2,4(1H,3H)- quinazolindiones CASSELLA FARBWERKE MAINKUR AG 3 July 1970 [4 July 1969] 32384/70 Heading C2C Novel compounds of Formula I wherein m is 1, 2 or 3, n is 2 or 3, R 1  is C 1-4  alkoxy attached in the 6 and 7, or 6, 7 and 8 positions of the quinazoline ring, R 2  is C 1-4  alkoxy and R<SP>1</SP> is the radical of a secondary C 2-10  aliphatic, cycloaliphatic or araliphatic amine or a 5, 6 or 7 ring membered heterocyclic amine optionally containing an additional N, O or S hetero atom, the radical being attached through the nitrogen atom, R<SP>1</SP> being optionally substituted where it represents a secondary aliphatic amine by a piperidino group, or a radical otherwise within the definition of R<SP>1</SP> in which a hydroxy group is replaced by a group of formula are prepared either by cyclization of a compound of formula with phosgene or a chloroformate or by esterification of a compound of formula wherein R is as R<SP>1</SP> above with the proviso that R may contain OH substituents which will be esterified in the product. 2 - Amino - 3,4,5 - trimethoxy - N[8 - diethylamino - # - (3,4,5 -trimethoxybenzoxy)- propyl]- benzamide is prepared by reduction of the corresponding 2-nitro compound obtained by esterification of 2 - nitro - 3,4,5 - trimethoxy- N - (γ - diethylamino - # - hydroxypropyl) - benzamide prepared by action of 2-nitro-3,4,5-trimethoxybenzoyl chloride on γ-diethylamino-#- hydroxypropylamine. Pharmaceutical compositions in conventional forms and having coronary dilator activity comprise an above novel compound or pharmaceutically acceptable acid addition salt thereof and a conventional pharmaceutically acceptable diluent or carrier.
Patent GB-869337-A (GB)
Title: Improvements relating to high-frequency seam welding
Inventor: RUDD WALLACE COLLINS
IPC: B23K13/02
Filed: 1958-08-29
Abstract: 869,337. Making saws; welding by pressure. MAGNETIC HEATING CORPORATION. Aug. 29, 1958, No. 32390/60. Divided out of .833,588. Classes 83 (2) and 83 (4). In welding together opposed edges of elongated metal portions having different individual heating pattern requirements and/or welding temperatures, the portions are advanced so that their opposed edges travel past a welding point in the region of which the edges are firmly retained together and electrical current having a frequency not less than 100 kilocycles per second is applied conductively to the portions to flow therein along paths in or adjacent the opposed edges in advance of the welding point to heat the edges to welding temperature, the current being so applied as to follow paths of different lengths whereby the heating effect of the current in one portion is greater than in the other portion. In an embodiment a strip HC, Fig. 1, of high carbon steel is advanced together with a strip HS of high-speed steel with a V-shaped gap between them to a weld point w where rollers 11, 12 force the edges together. Fluid-cooled contacts 20, 21, one or both of which is adjustable longitudinally of the seam, are applied at or adjacent the edges of the strips and are supplied with current of frequency up to 300,000 or 450,000 cycles per second, the current following paths of different lengths in the respective strips to and from the weld points. A block 52 of magnetic material of high volume resistivity is mounted for vertical and longitudinal adjustment adjacent one or each of the edges to concentrate the current therein and the edges are preheated to say 1000‹ F. by a cooled induction coil 14 supplied with current at a frequency of several thousand to above 10,000 cycles per second. A large portion of the strip HS welded to the strip HC along line 60 is slit off along the dotted line 62, Fig. 3, and teeth 63 are cut on the edge of the strip HC to produce a band-saw blade with teeth having high-speed steel tips. A high carbon steel strip may be welded on each side of a narrow high-speed steel strip and the latter is slit along the median line to provide material for two composite blades. The edges of the portions may be bevelled as in Fig. 6 to predetermine the position of the weld upset as in Fig. 7, either on one side or the other. Specifications 748,528, 772,398, 851,530 and 869,336 also are referred to.
Patent GB-638766-A (GB)
Title: Improvements in machines for mixing concrete and other materials
IPC: B28C5/18
Filed: 1947-12-09
Abstract: 638,766. Concrete mixers. WINGET, Ltd., and AISBITT, E. W. BLAXLAND-. Dec. 9, 1947, No. 32518. [Class 86] A machine for mixing concrete and other materials comprises a mixing drum which has its interior divided into inner and outer inter-communicating concentric spaces and mixing elements which urge a mix to circulate in opposite directions through these two spaces. As shown in Fig. 1 a rotatable drum 1 is divided into inner and outer concentric spaces by an open ended frustro conical or cylindrically shaped separating member 17 which is fixed to the drum 1 by brackets 23 and has its inner end supported on a boss 10. The member 17 may be formed of two or more plates 17a, 17b, Fig. 2, welded together at 19, to form a complete body of revolution at its forward end and openings 18 at its inner end, or it may be formed of plates spaced apart over their full length and fixed to a frame. Each plate is bent outwardly along a line 21 to form a blade 20 which picks up the mix falling from the outer end of the separating member and returns it to the closed end of the drum by way of an opening 18 when the blade 20 approaches its highest position. In modifications the drum may rotate about a stationary separating member or the blades may rotate in a stationary drum in which case the separating member may be either stationary or rotate with the mixing blades. Discharge of the mix may be effected by an additional forward tilt of the drum 1 or by reversing the direction of the rotation of the drum.
Patent GB-341974-A (GB)
Title: Improvements in or relating to the cleaning of metals
IPC: C23G1/02
Filed: 1929-10-26
Abstract: Cleansing compositions for removing oil from metal surfaces consist of colloidal clay free from carbonates and other ingredients removable by washing with mineral acid, a solvent for oil, water, and phosphoric acid.  Solvents specified are ethers, e.g. ethylene glycol monobutyl ether, ketones such as acetone or ethyl-methyl-ketone, chlorinated hydrocarbons, esters, and alcohols such as methyl, ethyl, or butyl alcohol.  For example, a steel automobile body is prepared for painting or lacquering by spraying on a mixture of 2,50 lb. of acid-washed colloidal clay, 0,30 gallons of denatured ethyl alcohol, 0,15 gallons of butyl alcohol, 0,39 gallons of water, and 0,06 gallons of 75 per cent o-phosphoric acid, with or without 0,16 lb. of chrome green oxide for colouring purposes, allowing the coat to dry--maybe at 212 DEG  F. for about 15 mins.--and removing the powder by blowing, jarring, brushing, wiping, or a suction fan or suction brush, followed or not by wiping with a cloth moistened with alcohol or other solvent.  The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of sulphuric, hydrochloric, or other metal-etching acid in place of phosphoric acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1044755-A (GB)
Title: Method for preserving rubber latex prior to concentration
IPC: C08C1/06
Filed: 1964-08-11
Abstract: Rubber latex is preserved prior to concentration by the addition thereto of 0.025 to 0.2% of a phosphate capable of breaking down the viscous complexes present in the latex and of 0.04 to 0.4% by weight of formaldehyde added as an aqueous solution, all proportions calculated on the weight of latex. Phosphates specified are diammonium, disodium, and dipotassium hydrogen phosphates.  An artificial soap or surface active agent may also be added.
Patent GB-1248387-A (GB)
Title: Improvements in and relating to code bar assemblies for communications apparatus
Inventor: CURELLO CHARLES
IPC: H04L13/16
Filed: 1970-07-06
Abstract: 1,248,387. Keyboards. MITE CORP. 6 July, 1970 [10 Sept., 1969], No. 32727/70. Heading B6F. A communications apparatus code-bar assembly comprises an elongated bar 40 and a plurality of separate notched sections (42, 44, 46) 48, (52, 54) which are moulded around the bar.
Patent GB-911820-A (GB)
Title: Improvements in or relating to papers for use in chromatographic separations
Inventor: KNIGHT COLIN SUTHERLAND
IPC: G01N30/93
Filed: 1960-09-23
Abstract: 911,820. Paper for chromatographic separations. BALSTON Ltd., W. & R. Sept. 19, 1961 [Sept. 23, 1960], No. 32808/60. Class 96. Paper for chromatographic separations, made e.g. from bleached cotton linters, has e.g. 45 to 65% of irregular-shaped particles of at least one ion-exchange resin, e.g. cross-linked, polystyrene-sulphonic acid, polymethacrylic acid, polystyrene-quaternary ammonium, or polystyrene-tertiary amine resins, the particles of the resin being irregular in shape and having one dimension commensurate with the diameters of the cellulose fibres of the pulp, and having a degree of swelling of at least 0.08 gms. of water per milli-equivalent ion-exchange capacity of dry resin. The resin may contain less than 20 p.p.m. of iron and less than 5 p.p.m. of copper and may pass through a 500-mesh U.S. standard sieve. In addition to a cation-exchange resin, the paper may contain an anion-exchange cellulose derivative ; or an ar ioi-exchange resin paper may include a cation-exchange cellulose; or both resin and cellulose may be capable of anion or cation exchange &c. Cellulose derivatives mentioned are cellulose citrate, cellulose reacted with epichlorhydrin and triethanolamine, or phosphorylated-, carboxymethyl-, sulphethoxy, aminoethyl-, diethylamino-, or triethylaminoethyl - cellulose. Specification 814,363 is referred to.
Patent GB-194376-A (GB)
Title: Improvements in and relating to seats, chairs and the like
IPC: B60N2/20
Filed: 1921-12-07
Abstract: 194,376. Palmer, W. J. Dec. 7, 1921. Seats, arrangement of.-In a seat, more particularly for vehicles, of the type in which the seat may be displaced in a backward or forward direction, the back is pivoted to the rear legs 2 of the seat 1, and the side rails 6, of the back are extended to form bent arms 7, which are hinged to a fixture 8 on the floor. The front legs 3 have castors 4. By pushing the back, the chair rides forward about the pivot 8. To provide for adjustments, the plate 8 may have alternative fixing holes in the floor, and alternative holes may be provided for the pivot pin 5. In a modification, the pins 5 operate in slots in the arm 7, and the back legs also of the seat have castors. In another modification, the back is connected to the seat by links pivoted to the seat and back, and the back legs have castors. in these modifications the seat does not rise, as shown in the figure, but rolls forwardly on the castors.