baber/WOPTO huggingface dataset:
Patent GB-462637-A (GB)
Title: Improvements in and relating to the arrangement of electrode wires or threads in electrical gas purifiers and similar apparatus
IPC: B03C3/86
Filed: 1936-06-10
Abstract: 462,637. Electrical precipitation apparatus. TRIGGS, W. W. (Bolidens Gruvaktiebolag) June 10, 1936, No. 16239. [Class 39 (i)] In electrical precipitators or similar apparatus, the wire discharge electrodes 5 are freely suspended over supports 6 and are loaded at both ends by weights 7, 8 or springs so that in the event of breakage the two parts are pulled away from each other to prevent short-circuiting with the electrode 4 of opposite polarity.
Patent GB-893752-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/4805
Filed: 1959-05-12
Abstract: 893,752. Cartons. WEBSTER, R. R., and COOKS CORRUGATED CASES Ltd. May 12, 1959, No. 16244/59. Class 18. A single blank, Fig. 1, has portions forming side and end walls 2, 3, 4, 5, portions 29, 38, 11, 20 forming interengaging longitudinal and transverse partitions, portions 9, 18 which abut to form a base, and abutting lid portions 27, 36; a loose member 46 forms a central transverse partition, see Fig. 2. In an alternative construction, Fig. 4, two superimposed layers of compartments are provided and in addition to a loose member corresponding to member 46 a second loose member 51 is provided. The abutting edges of the base and lid members may be secured by an adhesive strip.
Patent GB-544496-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/02
Filed: 1940-11-09
Abstract: 544,496. Building blocks. HAUGHTON, H. P. Nov. 9, 1940, No. 16290. [Class 87 (i)] A building block a, Fig. 1, adapted to be filled with concrete and suitable for the construction of air raid shelters comprises a shell of terracotta, concrete &c. open-ended at top and bottom and formed with one or more notches d at the end or ends of one or more sides to register with a similar notch in an adjacent block so as to form a key connecting the concrete fillings of the adjacent blocks in the same course. In a modified construction, Fig. 3, the block may be provided with an inclined tubular part g to provide for ventilation.
Patent GB-932849-A (GB)
Title: Vacuum coating method and apparatus
Inventor: BINGHAM KENNETH CHARLES ARTHUR
IPC: C23C14/54
Filed: 1961-05-05
Abstract: A surface is coated with material by vacuum evaporation from a heated source according to the method and apparatus of Specification 931,941, whereby the duration of evaporation is controlled by comparing frequencies of a quartz crystal oscillator and a variable frequency oscillator, the quartz crystal being exposed to the source vapour; the frequency of the variable frequency oscillator being adjusted so that the frequency differential is at a first predetermined value, starting vapour deposition and ceasing evaporation when the frequency differential resulting from loading of the quartz crystal with condensed vapour reaches a second predetermined value.  An example of the control circuit in operation relates to the coating of a polished surface of a pre-heated aluminium plate with a thin film of ferromagnetic alloy, and the coating is carried out in a magnetic field to align the easy axis of magnetization of the film in a particular desired direction.  The apparatus provides for the coating of a plurality of surfaces in succession wherein each surface is moved in turn to the coating position, the frequency of the variable oscillator is initially adjusted for the same said first predetermined frequency differential for each surface, and evaporation continues with progressively increasing loading of the quartz crystal with the successive surfaces until the same said second predetermined frequency differential is obtained with each surface.  The frequency differential range is such that it does not include or approach zero during evaporation.
Patent GB-1237321-A (GB)
Title: Circuit arrangement for generating sawtooth currents
IPC: H03K4/64
Filed: 1969-03-28
Abstract: 1,237,321. Transistor sawtooth circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 March, 1969 [30 March, 1968], No. 16435/69. Heading H3T. In the line deflection circuit, for a cathoderay tube, forming the subject-matter of Specification 1,133,528, over-heating of the final transistor T2 due to self-oscillation in the event of failure of the driver transistor T1, is prevented by the inclusion of a capacitor 8 in the base circuit. The reactance of capacitor 8 should preferably be between one-fifth and onethird of the impedance of the secondary winding 4 whilst the turns ratio of transformer 1 should preferably be 20: 1. Inductor L B  ensures rapid turn off of T2 after a delay due to carrier storage as described in Specification 1,234,607.
Patent GB-594189-A (GB)
Title: Device for preventing rotation of sliding pieces
IPC: B64C25/00
Filed: 1945-06-27
Abstract: 594,189. Preventing relative rotation of sliding members. OLAER PATENT CO., and COMPAG- ,NIE GENERALE POUR L'EQUIPE - MENT AERONAUTIQUE. June 27, 1945, No. 16447. Convention date, June 24. 1942. [Class 80(iii)] [Also in Groups XXXII and XXXIII] To prevent relative rotation of two members 1a, 3 of an aircraft landing gear strut while permitting their relative sliding, a metal fabric sleeve formed of crossed metal wires 4, 4a is provided between the two members, each wire such as 4 passing alternately over and under the wires 4a which it crosses.
Patent GB-166801-A (GB)
Title: A process for the production of deep printing moulds or forms provided with grids
IPC: G03F5/20
Filed: 1920-06-17
Abstract: 166,801. Sauer, E. June 17, 1920. Photo-mechanical printing-surfaces. - Intaglio printing-surfaces are produced by taking a transparent plate such as cellon or celluloid, forming by stamping, moulding or other process a deep screen pattern leaving raised grid lines, filling in hollows with bichromated gelatine, printing the plate through the back from a diapositive of the picture to be reproduced, and developing with warm water.
Patent GB-1535151-A (GB)
Title: Level indicating circuit arrangement
IPC: G01R13/40
Filed: 1977-04-20
Abstract: 1535151 Analogue-to-digital conversion SANYEI ELECTRONICS CORP 20 April 1977 [21 June 1976] 16481/77 Heading H3H Voltage level is indicated by light-emitting diodes L o  ... L n  connected between chains of resistors and diodes as shown in Fig. 1.
Patent GB-203792-A (GB)
Title: Improvements in or relating to circular knitting-machines
IPC: D04B15/00
Filed: 1922-06-14
Abstract: 203,792. Selkirk, A., and Creelman, R. I. June 14, 1922. Needle-beds, needle-carriers, and the like.-The upper slotted end of a needle cylinder is bevelled off as shown and the slots not occupied by needles are filled in with blanks 5 with upper ends 6, 6<a> or 6<b> adapted to serve as yarn supports. If it is desired that all the slots shall be occupied by needles, a filler ring 10 having yarn-supporting projections 9 is substituted for the blanks 5.
Patent GB-627363-A (GB)
Title: Improvements in or relating to can opener
IPC: B67B7/46
Filed: 1947-06-23
Abstract: 627,363. Tin-openers. REGINA CORPORATION. June 23, 1947, No. 16531. Convention date, May 11, 1940. [Class 66] A traction-wheel tin-opener on a bracket 10, Fig. 2, has a lever 35 which is turned to move fingers 31 over cam surfaces 29 and also to move a cam 34 against a spring- mounted plate 37 so that a shaft 17 is moved axially against spring pressure and slightly rocked so that a cutter-wheel 25, Figs. 2 and 7, is forced towards the inside of the wall of the can 64 and downwardly into the end of the can, a surface 28 of the wheel lodging on the top of the rim of the can so that the bead is forced downwardly against a traction-wheel 56 and the side of the bead is pressed against teeth on the edge of a cupped disc 57 which is turned by a crank handle 62, with the tractionwheel 56 but can move, against spring pressure at 61, axially along the shaft 55 of the traction wheel. Rollers 54 and abutment-plates 51 guide the can during cutting. The spring mounting of working parts accommodates irregularities of the can.
Patent GB-784620-A (GB)
Title: Manufacture of aliphatic chloroepoxides
Filed: 1955-06-08
Abstract: Aliphatic chlorepoxides are manufactured by reacting an allylic chlorohydrocarbon containing the group: <FORM:0784620/IV (a)/1> with peracetic or perpropionic acid substantially free from hydrogen peroxide, water, mineral acids and salts, preferably at 25-200 DEG C.  Advantageously the allylic chlorohydrocarbon is heated to refluxing temperature and the peracetic or perpropionic acid is gradually added, if desired in admixture with acetaldehyde and/or acetone.  To prevent decomposition of the peracid by heavy metal ions during the reaction, it may be carried out in the presence of a sequestering agent (e.g. an alkali metal salt of a polyphosphate or partially esterified polyphosphate, gluconic acid, ethylenediaminetetracetic acid or sodium silicate) or of a compound which inhibits the decomposition (e.g. pyrogallol, trinitrobenzene or sodium pyrophosphate).  Preferred starting materials are compounds containing either one or two chlorine atoms in the allylic position but none attached directly to either of the olefinic carbon atoms, and having the general formula: <FORM:0784620/IV (a)/2> wherein R1, R2, R3, R4 and R5 represent hydrogen or alkyl or chloroalkyl radicals.  Examples describe the preparation, using peracetic acid, of chloroisobutylene oxide from methallyl chloride, 3 - chloro - 1 : 2 - epoxybutane from 3 - chloro - 1 - butene, 1 : 4 - dichloro - 2 : 3-epoxybutane from 1 : 4-dichloro-2-butene, epichlorhydrin from allyl chloride, 3 : 4-dichloro1 : 2-epoxybutane from 3 : 4-dichloro-1-butene and 2 : 3-epoxy-2-ethylhexyl chloride from 2-ethyl-2-hexenyl chloride; and the preparation of 1-chloro-2 : 3-epoxybutane from crotyl chloride and perpropionic acid.  Starting materials.  Peracetic and perpropionic acids of the desired degree of purity are prepared by treating acetaldehyde and propionaldehyde respectively with oxygen at a low temperature, advantageously in the presence of a catalytic amount of a heavy metal salt or under ultra-violet irradiation, thermally decomposing the resulting acetaldehyde monoperacetate or propionaldehyde monoperpropionate, and rapidly separating the resulting peracid from the simultaneously liberated aldehyde.  The preparation of each of the peracids is described in detail. 2-Ethyl-2-hexenyl chloride is prepared by treating 2-ethyl-2-hexenol with thionyl chloride in the presence of pyridine.
Patent GB-374272-A (GB)
Title: Improvements relating to the rocking contact-members of electrical switches
IPC: H01H23/12
Filed: 1931-06-06
Abstract: 374,272. Contact-members for switches. WANDSWORTH ELECTRICAL MANUFACTURING CO., Ltd., Kenyon Street, BATCHELOR, T., 67, The Avenue, and SMITH, A. B., 85, Arden Road, both in Acocks Green, both in Birmingham. June 6, 1931, No. 16566. [Class 38 (v).] A contact-member for a switch of the tumbler or plug-operated type, comprising a U-shaped rocking-member c and a U-shaped bridging- contact b, has a strip of mica a adapted to cover the head d<1> of the attachment rivet d to prevent arcing between the rivet and the fixed contacts. The mica strip is held by the rivet d passing through a. hole in one end a<1> of the strip which is then bent round between the limbs b<1> of the contact-member to cover the rivet, and the other end is held by a flexible metal tag e which is threaded on the rivet and has a lug e<1> which passes through a slot in the mica strip and is bent over.
Patent GB-372969-A (GB)
Title: Improvements in, or relating to, electrical switches of the plug-operated type
IPC: H01R13/703
Filed: 1931-06-06
Abstract: 372,969. Plug couplings. WANDSWORTH ELECTRICAL MANUFACTURING CO., Ltd., Kenyon Street, BATCHELOR, T., 67, The Avenue, and SMITH, A. B., 85, Arden Road, both in Acocks Green, both in Birmingham. June 6, 1931, No. 16568. [Class 38 (i).] Combined with electric switches.-The earthing socket a, into which a switch-operating earthing pin is inserted, is mounted on a vertical stirrup shaped frame b, the arms b<1> of which are riveted to a horizontal cradle c. One end c<2> of the cradle is bolted to the insulating base d, the other end consisting of a pair of arms c3 that carry the moving parts f of the switch. The socket a enters a hole h<1> in the cover h which is secured thereto by a collar i. The live sockets do not extend through the cover so that the socket a is the only exposed metal part and guides the plug member into the correct engaging position before the current carrying plugs enter the live sockets.
Patent GB-1083518-A (GB)
Title: A latching push-button electric switch
IPC: H01H13/02
Filed: 1966-04-15
Abstract: 1,083,518. Switches held set and freed mechanically; lampholder. CUTLER HAMMER Inc. April 15, 1966 [April 16, 1965], No. 16583/66. Headings H2B and H2E. A latching push-button switch comprises a slidably mounted hollow insulating plunger 22 carrying a disc contact 10 and a nylon latch 32, and a plastics rectangular base 2 having a central cavity 2a to receive the plunger and mounting fixed contacts 6, (8, Fig. 2), and a resilient latch hook 34. On initial depression and release of the plunger, latch 32 co-operates with hook 34 to retain the plunger in a latched position, and on further depression and release, the plunger is released for return to its original position by a helical spring 12. In Fig. 1, contact 10 slidably engages and bridges contacts 6, (8) when the plunger is in its latched position, whereas in a modification, the fixed contacts are as shown in Fig. 8, Specification 952,913, and are bridged when the plunger is unlatched. Base 2 (Fig. 4), has diametrically opposed holes 2b, (2e) containing contacts 6, (8) and further holes (2c, Fig. 2), 2d containing fixed contacts 14, 16 providing a circuit for a fixed indicator lamp 20 mounted in plunger 22 beneath a translucent disc 26. Hook 34 is held fixed in base 2 by a plug 36 (Fig. 3). Base 2 is closed by a metal cover 4 provided with a mounting bushing 4a and having integral straps bent into grooves (2g, Fig. 4) 2n in the base. Insulating retainers 28, 30 hold contacts 6, (8), (14), 16 in position, and the ends of contacts 6 (8) are inserted in slots 2f in the base. Plunger 22 (Fig. 5) comprises an upper tubular portion 22a and a lower hollow rectangular portion 22b in the base cavity 2a slotted diagonally at 22c (Fig. 2) for the clearance of contacts 14, 16 when depressed. A slot (22e, Fig. 5) in the plunger rigidly mounts latch 32 (Fig. 6), lug (32a) air latch 32 fitting in notch (22d) in plunger 22 and portions (22f) in plunger 22 fitting in grooves (32b) in latch 32 so that a cam face on the latch faces inside the plunger. On initial depression and release of the plunger, the free point of hook 34, which is normally biased against wall (32m) of cam face of latch, is guided along walls (32c, d, e, f, i, n, p, Fig. 6) of latch 32, the plunger being latched when point 34 is against wall (32p), and on repeated depression and release, the point of hook 34 is guided along walls (32n, j, k, m) of latch 32, thus completing a generally heart-shaped path. Contact 10 (Fig. 5) has a slot (10b) to provide clearance for the free point of hook 34. An internallythreaded lampholder 18 has terminals 14, 16 supporting the lampholder in a base 2 containing a switch. Terminals 14, 16 are clamped by a rivet passing through an enlarged hole in terminal 14 and an enlarged hole in the base of holder 18. Terminal 16, electrically connected to the rivet, is clamped between the rivet head and an external insulating washer; and terminal 14, electrically connected to the holder 18, is clamped between the external washer and the holder 18, an insulating internal washer also being provided.
Patent GB-298882-A (GB)
Title: Improvements in and relating to well base wheel rims
IPC: B60B21/02
Filed: 1928-06-07
Abstract: 298,882. Kronenberg, R. Dec. 15, 1927. [Convention date]. Tyre attachments to rims.-A well-base rim is formed with the groove decreasing in depth continuously from a maximum at two diametricallyopposite points b to zero at the intermediate points a where the rim-base is flat.
Patent GB-930022-A (GB)
Title: Improvements in or relating to matrix width indicators for tape perforating machines
IPC: B41B25/00
Filed: 1961-05-08
Abstract: 930,022. Strip-perforating; type-justifying. SIEMENS & HALSKE A.G. May 8, 1961 [May 9, 1960], No. 16628/61. Class 100 (3). A control device for a matrix width indicator for use in a machine which perforates a strip for controlling a type-casting machine includes a movable scanning member 10 having a scanning edge disposed at an angle to the direction of motion of the scanning device and a plurality of stop-members 4 each movable by means of an electromagnet 5 into the path of the scanning edge, the stop-members being arranged in rows spaced in the direction of motion of the scanning device and the stop members in each row being arranged in a line which is disposed at an angle to the direction of motion of the scanning device different from the angle between the scanning edge and the direction of motion. The electromagnets 5 are mounted in a block 1 of easily magnetizable material and the stop-members 4 are non-magnetic rods slidable in bores in the block 1 and secured to the armatures 2 of the electromagnets. When pressure is applied to a strip-perforating key (not shown) a switch 8 in the circuit of one of the electromagnets is closed so that the magnet is energized and the corresponding stop member 4 is protruded from the face 1a of the block 1. The scanning member 10 is then moved downwards from the position shown until its leading edge abuts against the protruded stop member which prevents the member 10 from moving further downwards. The amount of movement of the member 10 is converted to a proportionally reduced movement of the indicator of a device for indicating the sum of the matrix widths. The member 10 then returns to its starting position and the stop member 4 is retracted by a spring 9.
Patent GB-165653-A (GB)
Title: An improved floor-cramp
IPC: E04F21/22
Filed: 1920-06-21
Abstract: 165,653. Gregory, A. E. June 21, 1920. Cramps.-A floor-cramp comprises a U-shaped piece of metal A adapted to straddle a joist H, a metal double wedge B pivoted thereto by a bolt, pin, or rivet C, a wooden or fibre wedge D engaging a rabbeted edge of the wedge B at one side and the floor-boards L at the other, and a pin E passing through holes in the sides of the part A and bearing against the underside of the joist H. The cramp is operated by driving in the wedge D..
Patent GB-637988-A (GB)
Title: Improvements in conduits for electric cables
IPC: H02G3/04
Filed: 1948-06-22
Abstract: 637,988. Multiple fastenings. POWER CENTRE CO., Ltd., and STEVENS, A. H. June 22, 1948, No. 16698. [Class 44] [Also in Group XXXVI] A conduit 10 comprises a trough like base 11 having inwardly turned edges 12 and a cover 13 through which a pin 18 carrying a locking arm 15 extends, rotation of the pin causing rotation of the arm. The arm 15, which is somewhat longer than the width of the cover is spaced from the cover 13 by means of a washer 19 and preferably has obliquely shaped ends 16 and inclined surfaces to engage the underside of the flanges 12 with a cam-like action and draw the .cover down tightly on to the base part when in the locked position. Strips of rubber may be placed between the flanges 12 and cover 13, in which case the ends of the arm 15 may be cranked downwardly to engage correctly beneath the flanges. Two locking arms, disposed at a slight angle to one another, may be mounted on the pin 18.
Patent GB-1236133-A (GB)
Title: Coating of cellulosic food casing
IPC: C08J7/048
Filed: 1969-03-31
Abstract: 1,236,133. Sausage casings. TEE PAK Inc. 31 March, 1969 [3 April, 1968], No. 16704/69. Heading A2B. [Also in Divisions B2 and C3] Regenerated cellulose for sausage casings is coated with a composition comprising a vinylidene chloride polymer or copolymer, a polymeric polyisocyanate, a solvent system comprising a mixture of butyrolacton with a low-boiling ketone, ether or ester free from active hydrogen, and optionally a polyol cross-linking agent. The polyisocyanates are polyurethanes containing a plurality of isocyanate groups. Suitable polyols are simple polyols, their reaction products with ethylene oxide, propylene oxide or butylene oxide and polyglycols such as polymers of ethylene glycol, propylene glycol, glycerol or pentaerythril. The low boiling solvent is methyl ethyl ketone, tetrahydrofuran or ethyl acetate. Optional are surfactants, e.g. sorbitan esters, and epoxy compounds. In the examples a vinylidene chlorideacrylonitrile compolymer plasticized with octyl diphenyl phosphate is used. The solution is applied to regenerated cellulose, which may be fibre reinforced, in the form of a tube preferably by dip coating or spray coating followed by heat drying to form food packaging having low transmissions of oxygen and water vapour.
Patent GB-781376-A (GB)
Title: Improvements relating to precision casting by the lost wax process
Inventor: TURNBULL JOHN STRATTON
IPC: B22C1/16
Filed: 1954-06-08
Abstract: In a method of forming a mould by repeatedly dipping a wax pattern in a mixture of refractory particles and a binder as described in parent Specification the binder used is a phosphate, e.g. aluminium phosphate.
Patent GB-1195005-A (GB)
Title: Press Insert
Inventor: WHITESIDE ROGER BARTLEY
IPC: F16B37/12
Filed: 1969-04-01
Abstract: 1,195,005. Press insert. STANDARD PRESSED STEEL CO. 1 April, 1969, No. 16874/69. Addition to 1,179,037. Heading F2H. [Also in Division B3] In a modification of the press insert of the parent case. Specification 1,179,037, the volume (klmn) of the panel material displaced by the trailing flange 2 is greater than the volume (opqr) of the insert groove plus the volume (ostn) of the annular void between the panel opening and the leading flange extended to intercept the trailing flange. The volume displaced is preferably less than twice the volume of the groove plus annular void. The insert may take all the forms shown in Specification 1,179,037 comprising anchored studs and nuts and the trailing flange may have the forms disclosed therein, e.g. circular, square, elliptical or chorded circular.
Patent GB-1390209-A (GB)
Title: Bulk handling apparatus
IPC: E02F3/18
Filed: 1972-04-12
Abstract: 1390209 Endless conveyers; unloading piled material J PRADON 12 April 1972 [15 April 1971 24 March 1972] 16877/72 Headings B8A and B8E An elevator for granular material includes a slat 13 which, as the elevator moves horizontally along a side 27 of a heap of material directs the material into buckets 2 of an endless chain 1. By means of actuators 19, 21 and a pivotal mounting 17 the inclination of the slat may be varied about it longitudinal and transverse axes. The elevator is,movable vertically and can be pivoted about its vertical axis by a motor 11. The elevator, when moved horizontally in a direction 28, Fig. 2, is oriented with the axis of a lower chain wheel 3 at approximately 45 degrees to the direction 28; the top of the slat 13 leads the bottom. On the return run, the elevator is rotated about its vertical axis to operate as before, the attitude of the slat 13 also being reversed. The material is discharged into a shoot 7. When the material is initially level, e.g. at the beginning of unloading a ship's hold, a channel is formed by repeated longitudinal runs of the elevator, Fig. 3 (not shown), after which the material from the sides of the channel, using the slat (13), is moved. In a modification, Figs. 4, 5 (not shown), a trough (46) receives material from a shoot (51) which when the elevator moves in a direction (55) causes material to be pushed up the shoot from the bottom of a hold. The trough and shoot may be raised to inoperative positions when the buckets (2) are filled directly or when a slat feed member is used. In a further modification, Figs. 6, 7 (not shown), a scoop member (60), after filling, is discharged into the trough (46). A still further modification, Figs. 8, 9 (not shown), includes a pair of deflectors (70) which direct material towards the buckets (2). The deflectors may be raised out of operating position.