baber/WOPTO huggingface dataset:
Patent GB-604030-A (GB)
Title: Improvements in photo-electric telegraph transmitters
IPC: H04L17/14
Filed: 1945-11-21
Abstract: 604,030. Automatic control systems. TELETYPE CORPORATION. Nov. 21, 1945, No. 31357. Convention date, June 15, 1944. [Class 38 (iv)] [Also in Group XL (b)] In a photo-electric telegraph transmitter, message-tape feeding mechanism and scanning mechanism therefor are automatically maintained in phase as a result of scanning control marks on the tape. Fig. 5 shows an exploded view of three concentric cylinders 42, 48, 52 of a photo-electric telegraph transmitter, similar to that described in Specification 472,728, [Group XL]. As in that Specification, a radial beam of light from a source outside cylinder 52 is directed towards the axis of the cylinders and a photo-electric cell is responsive to light reaching the inside of cylinder 42. A message tape bearing a printed five-unit code moved tangentially to cylinder 52 which is rotated so that slots 56 in it, in turn, register with successive lines of the code marks on the tape as they pass through the light beam. Cylinder 48 is geared to cylinder 52 so that it rotates once for a movement of cylinder 52 corresponding to the distance between adjacent slots 56, and slots 50 scan the individual units of the message code. Cylinder 42 is stationary and slots 46 serve to transmit, to the photocell, light resulting from the message scan. The use of light conducting rods to permit convenient location of the photocell is described. Slots 54 in cylinder 52 co-operating with slot 49 in cylinder 48 and slot 44 in cylinder 42 serve to scan starting impulses. The modification according to the invention, is the provision of equally spaced control marks near one edge of the tape and corresponding slots 57 on cylinder 52 so that when correct relative phase obtains between the tape and cylinder 52 no light is transmitted through slot 47 of cylinder 42 to a second photocell 64, Fig. 6. Transmission of light to this cell under out-of-phase conditions, however, energizes through a thermionic valve amplifier-oscillator including valves 132, 139, a relay 119, to operate a clutch 107 and disconnect a friction drive 105 to a tape feed roller 66 and, if necessary, apply friction brake 114 to slow down the feed, which would be otherwise fast, until the relative phase is corrected. In Fig. 6, photocell 63 is that influenced by the message code and operates a relay 153 through a thermionic valve amplifieroscillator to transmit the message impulses over line 157 to a printer at a distant station.
Patent GB-999899-A (GB)
Title: Spring mechanism for controlling the operation of a door of the tilting overhead type
Inventor: GREEN JAMES WILLIAM
IPC: E05D15/42
Filed: 1961-09-01
Abstract: 999,899. Door operating appliances; door stops. P. C. HENDERSON Ltd. July 16, 1962 [Sept. 1, 1961], No. 31469/61. Headings E2M and E2X. [Also in Division F2] Mechanism for counterbalancing an overhead door comprises an arm or lever 22 adapted to turn about a pivot 23 fixed to the door frame 14, the arm or lever having an integral cranked end, and an extension or compression spring 27, one end of which is adapted to be connected to the door frame and the other end of which is provided with a hook engaged in an aperture in the cranked end. The aperture may be fitted with a revolving sleeve or bush 26. The hook may be integral with the spring or may have a screw threaded shank engaged in a nut rotatably mounted in a plug fitted into the end of the spring so that the spring tension can be adjusted. A rubber stop 29 fixed to the door frame arrests the movement of the arm or lever in the fully open position of the door.
Patent GB-601934-A (GB)
Title: Improvements in or relating to devices for ascertaining the energy delivered or absorbed by a piston engine
IPC: G01L23/12
Filed: 1945-11-24
Abstract: 601,934. Indicating work done by an engine piston. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 24, 1945, No. 31758. Convention date. July 25, 1940. Drawings to Specification. [Class 40 (i)] The invention described and claimed is identical with that of Specification 550,294.
Patent GB-1090234-A (GB)
Title: Improvements in and relating to gyroplanes
Inventor: SCHERMULY WILLIAM CONRAD STEPH
IPC: B64C27/18
Filed: 1963-08-13
Abstract: 1,090,234. Rotary wing aircraft. SCHERMULY Ltd. Aug. 13, 1964 [Aug. 13, 1963], No. 31848/63. Headings B7G and B7W. [Also in Division F3] A gyroplane has at each rotor tip a rocket motor (see Division F3). As described the motor is of the solid fuel type and is either detachable, or is in the form of a fixed tube in which cartridges are inserted.
Patent GB-940933-A (GB)
Title: Adjusting device for sound heads on magnetic sound recording and reproduction apparatus
Filed: 1961-09-05
Abstract: 940,933. Adjusting magnetic recording &c. heads. L. BOLKOW, [trading as BOLKOW ENTWICKLUNGEN KOMM.-GES.]. Sept. 5, 1961, [Sept. 9, 1960], No. 31859/61. Heading G5R. The head 9 is clipped into a holder 8, which is bedded on to one or more rubber layers 3, azimuthal adjustment being provided by selective tightening of screws 5 engaging flanges 6, integral with the holder 8.
Patent GB-466025-A (GB)
Title: Improvements in or relating to machines for ornamenting boots or shoes
IPC: A43D93/00
Filed: 1935-11-19
Abstract: 466,025. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., PRATT, J. W., KEALL, F. B., WOODCOCK, R. B., and BOOTHROYD, H. Nov. 19, 1935, No. 31988. Addition to 419,363. [Class 17 (i)] Ornamenting.-The machine described in the parent Specification, or the modified machine described in Specification 449,872, wherein a weight is supported by link-work so arranged as to urge the work support against an indenting wheel with a constant pressure, is provided with mechanism by which the effect of the weight may be increased, to compensate for a sudden decrease in the thickness of the work. The weight 14 is carried by a lever 12 moving with a pivot 26 and linked to a lever 18 connected by a toggle 20, 22 with a work support lowered by a lever 56 and rod 58 connected to a treadle when work is to be charged, all as described in the later prior Specification. To the pivot 26 is secured a ratchet wheel 28 co-operating with a pawl 32 actuated by a bell-crank lever 46. This lever is actuated by a push-bar 48 having a knee pad 50 at one end and a guide link 42 at the other.- When the thickness of the work suddenly decreases, e.g. at the junction of forepart and waist, the operator may push the rod 48 endwise, causing the pawl to add to the pressure produced by the weight, and thus to compensate for the lag caused by the inertia of the weight.
Patent GB-413180-A (GB)
Title: Improvements in knitted fabric and method and means for making the same
IPC: D04B1/06
Filed: 1933-11-16
Abstract: 413,180. Knitting. SCOTT & WILLIAMS, Inc., 366, Broadway, New York, U.S.A.- (Assignees of Holt, L. B. ; Laconia, New Hampshire, U.S.A.) Nov. 16, 1933, No. 32001. Convention date, Jan. 18. [Class 74 (ii).] Relates to a plain knitted fabric in which different groups of stitch formations alternate in each wale, while like groups in adjacent wales are staggered longitudinally, in which the stitch formations comprising each course employ a plurality of yarns. According to the invention in each needle wale, tucked loops occur in certain stitch formations each repetition of one particular group. Thus m courses a, b, c and d, stitches in the left-hand wale include both the facing yarn x and the body yarn y in plating relation, while in the next wale, in corresponding courses, stitches comprise a single loop of the yarn y, with yarn x, floating at the rear of the fabric. In courses e, f, g and h, the reverse is the case. Short and long butted needles both having forwardly offset hooks, knit, wales L and H respectively. Fig. 1<x> shows the appearance of the fabric. Figs. 1 and 1<a> are developments of the cam system employed. Cam 18 has a needle depressing edge 20, which causes the long butt needles only, to move downwardly into groove 21, whilst the short butt needles are elevated by cam 18 to clearing level and delivered into groove 22. The guide M delivers facing yarn x at a point with just sufficient lead to wrap it round the short-butt needles so as to be taken by their hooks, whilst keeping it above the tops of the long-butt needles, behind which it drops. The yarn y is fed from the guide N at such a point that it wraps around both sets of needles, the float needles having been elevated by a clearing portion 23 of a cam 19. Cam sets A, B, C, and D are identical except that cam 17 of set D is cut away at 24 to deliver needle butts to cam 25 of the next set E. Here a cam slope 25<a> raises the long butt needles to be cleared in groove 26, and to take yarn x from guide M, whilst the short butt needles are not raised until they reach cam slope 27<a>. Thus the needles are now raised in reverse order and have exchanged their functions. Cam sets F, G, and H are identical with cam E, except that a riser 28 on cam 17 of set H delivers the needles at the proper elevation for cam set A. Any number of pairs of cams may be arranged around the cylinder. Certain cams may be arranged to raise the needles to tucking height only at certain of the cam sets, both yarns may be delivered at a single feed point, more than two yarns may be employed at a feed point and any number of stitches may constitute a wale group. By suitably combining all these characteristics, fabrics may be obtained in which, e.g. triple or quadruple tuck stitches occur. Various modified fabrics, and the cam sets producing them, are described.
Patent GB-1153132-A (GB)
Title: N-Silylamines, N-Silylimines and their use in Organometallic Syntheses
Inventor: WALTON DAVID RALPH MILES
IPC: C07F7/30
Filed: 1965-07-27
Abstract: 1,153,132. Para-aminophenyl-triethyl germane. UNIVERSITY OF SUSSEX. 27 July, 1966 [27 July, 1965], No. 32068/65. Heading C2J. [Also in Division C3] para-Aminophenyltriethylgermane is prepared by reacting para-bromoaniline with ethylmagnesium bromide in ether and then with Me 3 SiCl to produce para-bromo-N,N-bis-trimethylsilylaniline; adding n-butyl-lithium in ether to the latter; treating the mixture with bromotriethylgermane to give para-triethylgermyl - N,N - bis - trimethylsilylaniline, and regenerating the free amino groups with aqueous methanol. Protection of free amino or imino groups with trihydrocarbylsilyl groups can be an intermediate step in any organometallic synthesis where the starting material is an organic halide containing free amino or imino groups.
Patent GB-485990-A (GB)
Title: Improvements in or relating to amplifiers
IPC: H03F3/36
Filed: 1936-11-23
Abstract: 485,990. Valve amplifying circuits. PHILCO RADIO & TELEVISION CORPORATION. Nov. 23, 1936, No. 32154/37. Convention date, Nov. 23, 1935. Divided out of 485,924. [Class 40 (v)] Component frequencies of one range and component frequencies of a complementary range are obtained by applying a signal E3 to impedances R2, R3, C2, C3, the two components are amplified separately, and the amplified signals are combined in an output circuit R4. The lower frequencies, including the D.C. component, are derived from the condenser C3 and amplified in a valve V4. The higher frequencies are derived from the resistance R2 and are amplified in a valve V3 with a uniform gain over the higher frequency range, Fig. 3 (not shown). Each amplifier may include a plurality of stages, Fig. 2 (not shown).
Patent GB-1076257-A (GB)
Title: Improvements in or relating to flexible tube pumps
Inventor: BLACKMAN GEORGE
IPC: F04B43/12
Filed: 1963-08-14
Abstract: 1,076,257. Flexible tube pumps. MARSHALL & BLACKMAN ENGINEERING Ltd. Aug.13, 1964 [Aug. 14, 1963], No. 32180/63. Heading F1F. To interrupt the flow of pumping medium through a flexible tube pump when the pump is inoperative, a carrier member 7 supporting a flexible tube 6 is in turn resiliently supported by springs 12 on a support member 9 adjustable in an axial direction by bolts 10. As a disc 3 carrying rollers 4 is driven by an electric motor rotates the member 7 is caused to rock and when the pump stops, one of the rollers at least, will always be in a position to interrupt the flow of the fluid being pumped.
Patent GB-1486831-A (GB)
Title: Clothes pegs
IPC: D06F55/00
Filed: 1975-10-20
Abstract: 1486831 Clamps BETTERWEAR PRODUCTS Ltd 20 Oct 1975 [19 July 1974] 32191/74 Heading E2B A one-piece moulded plastics clothes peg has jaws 6, 7 which are of a looped formation to leave a space 12 adjacent the flexible hinge 3.
Patent GB-620064-A (GB)
Title: Improvements in watches
IPC: G04B3/04
Filed: 1946-10-30
Abstract: 620,064. Watches. PAGNARD, G. Oct. 30, 1946, No. 32242. Convention date, Nov. 30, 1945. [Class 139] A watch having a combined bezel 1 and movement holder 2 on which a back 4 is screwed is provided with a toothed ring 8 placed between the case band 12 and the bezel. The teeth of the ring 8 engage a pinion 10 on the winding stem 11. A ring 14 placed between the case band 12 and the back 4 carries a sloping member 20, Fig. 2, which projects between the pinion 10 and a collar 16 on the winding stem 11. The ring 14 is normally in a position in which rotation of the ring 8 causes, through the pinion 10, winding up of the mainspring. If, however, the ring 14 is rotated to its other position the projecting member 20 by reason of its slope moves the pinion 10 longitudinally into a position in which rotation of the ring 8 causes hand setting. The ring 14 may be omitted and the projection 20 carried by the case band 12, Fig. 3 (not shown), which is rotatable between two positions. Specification 620,065 is referred to.
Patent GB-452128-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K11/00
Filed: 1934-11-09
Abstract: 452,128. Electric incandescent lamps with residual gases. ALEXANDER, P., and JANOSKA, G., 93, Rue Elise, Brussels. Nov. 9, 1934, No. 32353. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 14, 1935]. [Class 39 (ii)] The bulb of an electric incandescent lamp contains, in addition to the current carrying incandescent body, a catalyst and a carbon compound which, in a cyclic process, is dissociated by the heat of the incandescent body into gaseous substances which combine on the catalyst with the accompaniment of luminous phenomena. In the example the bulb contains carbon monoxide, and the catalyst consists of the oxides of the rare earth metals, such as a mixture of thorium oxide and cerium oxide. At the operating temperature of the incandescent body the carbon monoxide is dissociated into its constituents, which at the surface of the heated catalyst combine, to form carbon monoxide. The catalyst may be supported upon a cylindrical grid or network surrounding the incandescent body and as near to the latter as is necessary for the catalyst to become heated to the temperature at which the catalytic effect occurs. Preferably the incandescent body, catalyst, and a filling of carbon-monoxide are enclosed in a hermetically sealed infusible transparent container which is enclosed within an evacuated lamp bulb of the usual type. In order to diminish the quantity of heat lost by the lamp, a selective filter, consisting in known manner of one or more layers of metal such as silver, may be provided in the path of radiation, whereby incident rays of long wave length, particularly the heat rays, are reflected back, while the rays of short wave length, particularly the light rays are transmitted. Preferably the filter is so shaped and arranged that the reflected heat is directed largely upon the catalyst, or upon the incandescent body. The filter may be arranged either on a separate supporting body surrounding the incandescent body, or directly on the wall of the container enclosing the incandescent body and catalyst. Alternatively the filter may be provided on the outer bulb. The catalyst may be provided directly on the incandescent body.
Patent GB-669024-A (GB)
Title: Improvements in or relating to electron-discharge devices
IPC: H01J25/587
Filed: 1945-12-03
Abstract: 669,024. Magnetrons. RAYTHEON MANUFACTURING CO. Dec. 3, 1945 [March 27, 1945], No. 32581/45. Class 39 (i). An anode structure 6 for a magnetron comprises a cylindrical copper body 9 having an annular boss 10 from which extends radially a plurality of anode members 11, each anode member being paired with an adjacent anode member to form, with the portion of the anode body lying between said pair of anode members, a first resonant line, and a low impedance member in the form of an arcuate conducting strap 12 connecting each member of each pair of anode members to the nearer member of each adjacent pair of anode members at points 13 intermediate the lengths thereof, portions of the connected anode members together with the low-impedance strap constituting a second resonant line of dimensions different from the first resonant line. The output wavelength is the average of the wavelengths of the two differently dimensioned resonant lines. Each anode member 11 can be provided, in their upper and lower edges, with slots 13 in which, initially, conducting rings may be secured, those portions of the rings which connect adjacent anode members 11 of alternate pairs being subsequently removed, leaving the straps 12. The cathode structure 7 which is coaxial with the anode structure .6 may include a highly electronemissive oxide-coated sleeve 17 heated by a filament having terminals 18, 19 connected to lead-in conductors 20, 21 passing through glass seals 22, 23 fused into pipes 24, 25, threadedly engaged and hermetically sealed in the body 9. Pole-pieces 26, 27 are provided. An output loop 28 projects into the space between any pair of anode members 11 forming one of the longer resonant lines and is connected to a conductor 29, embedded in a glass seal 30 fused into the outer end of a pipe 31 threadedly engaged and hermetically sealed in the body 9. Specifications 588,185, 588,916 and 590,547 are referred to.
Patent GB-1461274-A (GB)
Title: Direction indicator switches
IPC: B60Q1/42
Filed: 1973-07-09
Abstract: 1461274 Mechanical switches LUCAS ELECTRICAL Ltd 15 May 1974 [9 July 1973] 32664/73 Heading H1N [Also in Division G4] In a direction indicator switch the manual actuator lever 13, 14, Fig. 3, is supported by a pair of pins 15, 16, Fig. 4, extending through slots 17, 18 in a fixed frame 12 and yieldingly urged to the ends of the slots 17, 18 by an overcentre mechanism whereby the lever is normally restrained in its central position but after manual movement in either direction whereby it pivots on one or other of the pins 15, 16 it is yieldingly retained in its operated position. The over-centre system is restored through a cancelling pawl 22 projecting into the path of an abutment on the steering column. The overcentre system comprises a pair of slotted links 27, 28 pivoted at one end to each pin 15, 16 and coupled together by a pin 21 which is slidable in a slot 19, Fig. 3, of the switch housing. A wire spring 37, 38 acting as a tension spring is arranged to urge the pins 15, 16 and links 27, 28 towards each other so that in the central position (shown) the pins 15, 16 are urged towards the steering column to maintain the lever in its centre-stable position. On movement of the lever anticlockwise the pin 16 moves along the slot 18 until the link 28 meets a normally fixed abutment 34 on a plate 25 and pivots thereon to force the pin 21 and pawl 22 towards the steering column, the pin 21 going overcentre between the pins 15, 16 so that the spring 37, 38 urges the pawl 22 towards the column while retaining the pin 16 at the end of the slot 18 remote from the column to retain the lever in its operated position. Movement of the steering column in the signalled direction causes the pawl 22 to pivot to one side against the action of a light centring spring 23 but on a return movement an abutment 39 on the pawl 22 engages an abutment (not shown) on the lever 13, 14 which prevents the pawl 22 from pivoting to one side whereby it is pushed radially outwardlyto cause the pin 21 to return over-centre. The plate 25 carrying the abutment 34 is yieldingly supported by a strong spring 29 whereby in the event of the actuating lever 13, 14 being forcefully held in the operated position the steering column cannot be held against rotation. The switch is also arranged so that in the initial part of the actuating movement to either side the spring is still acting as a self-restoring spring when the contacts close so that the indicators can be operated and manually released as for lane crossing without taking the actuating lever over-centre.
Patent GB-1042439-A (GB)
Title: Weather-resistant zinc sulphide pigment
Inventor: KINDERVATER FRIEDRICH
IPC: C09C1/06
Filed: 1963-08-19
Abstract: In a process for stabilizing zinc sulphide pigment particles enveloped in a silicate film, zinc sulphide is suspended in an aqueous solution of sodium silicate and is flocculated with a solution containing alkaline earth metal salts or aluminium salts or mixtures of these salts, and the resulting pigment paste is mixed with an aqueous solution containing a total weight of 0.01-0.5%, preferably 0.1% (calculated on the dry pigment), of orthophosphoric acid, pyrophosphoric acid, metaphosphoric acid, boric acid, fluoboric acid, fluosilicic acid or their soluble salts which form difficultly soluble or insoluble salts with zinc ions, which solution has a pH of 4 to 9, preferably pH 6-8, adjusted with ammonia, and the resulting mixture is dried at 120-250 DEG  C. and is then ground.  The flocculating solution may be a mixture of CaCl2 and AlCl3.  The silicate film may contain 1-6% SiO2 by weight, calculated on the dry pigment. The solution which forms difficultly soluble or insoluble salts with zinc ions may be of ammonium pyrophosphate or metaphosphate. The drying temperature is preferably 180 DEG  C.