baber/WOPTO huggingface dataset:
Patent GB-320903-A (GB)
Title: Improvements in and relating to two-position non-spill galvanic cells
IPC: H01M50/367
Filed: 1928-07-25
Abstract: 320,903. Three Star Accumulators, Ltd., and Grund, F. C. July 25, 1928. Gas exits; cells.-A battery is provided with a gas exit comprising concentric tubes s, t, the latter of which depends into a chamber v having openings x which are above the level of the electrolyte, in all positions of the cell. The tubes s, tare carried by the plug q which may be provided with an external chamber y. A partition b extends parts across the cell to retain the electrolyte in contact with the plates d when the cell is stood upon its side. To ensure that the electrolyte covers the plates in both positions of the cell, the capacity of the latter is adjusted by a chamber n which may be provided with an opening o to allow for the expansion of the enclosed air.
Patent GB-1247291-A (GB)
Title: Motion picture camera with pivotally mounted handle
Inventor: DUDLEY HARVEY HARMON
IPC: G03B17/56
Filed: 1969-04-28
Abstract: 1,247,291. Cine-camera with a pivotable handle. EASTMAN KODAK CO. April 28, 1969 [April 29, 1968], No.21559/69. Heading G2E. A cine-camera has a pivotable handle containing batteries for powering an electrical device inside the camera body, and arcuate conductors which maintain contact with complementary conductors in the camera body whatever the angular position of the handle. The handle 20 pivotable between the positions shown comprises two mating members 30, 32 and contains two dry batteries 34, 36 connected in series and a mercury cell 40 for energizing a motor and an exposure meter respectively in the camera 10. The batteries 34, 36 and cell 40 are connected to arcuate strips 56, 58, 60 coaxial with the pivotal axis of the handle and contacted by radial conductors (62, 64, 66) Fig.3 (not shown) within the camera body. A trigger switch 24 is located in the circuit, Fig. 8 (not shown) between the batteries and the motor (38).
Patent GB-1398484-A (GB)
Title: Method of manufacturing a helical conveyor for a centrifuge
IPC: B04B1/20
Filed: 1973-05-07
Abstract: 1398484 Making helical conveyers PENNWALT CORP 7 May 1973 [26 July 1972] 21591/73 Heading B3A A method of making a helical conveyer 28 for a centrifuge comprises machining the inner periphery 14 of a helical coil 18 to a dimension which will decrease to the diameter of a shaft 24 when the coil is stretched on the shaft to a predetermined pitch, stretching the coil on the shaft, and welding the coil to the shaft at the predetermined pitch. Bar stock (10) is passed between two rotatably mounted rollers (12), Fig. 5 (not shown), to form a coil 18 having a thicker inner periphery 14 than the outer periphery 16. The coil is mounted against the face plate (20), Fig. 8 (not shown), of a lathe using clamps (22) and a cutting tool (24) is used to machine the inner periphery to the required dimension. The collapsed coil is placed over shaft 24 and stretched to the predetermined pitch and welded to the shaft on either one or both sides of the coil 18. The conveyer 28 so formed is then mounted on a lathe and a cutting tool 30 machines the outer periphery 16 of the coil to a predetermined dimension. The outer periphery is then faced with a wear-resistant material (32), Fig. 12 (not shown), e.g. carbide, using a torch (34) followed by grinding of the surfaced periphery in a lathe.
Patent GB-752419-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K5/132
Filed: 1954-07-23
Abstract: 752.419. Stuffing-box substitutes. GENERAL ELECTRIC CO. July 23,1954 [July 24, 1953], No. 21592/54. Addition to 751, 671. Class 122(5) [Also in Group XXXV] A submersible dynamo - electric machine rotor shaft seal 24 for preventing the ingress of the external media, e.g. well water, or the egress of the electrically insulating liquid, e.g. oil, filling of the machine, which filling is maintained at a pressure above that of the external media comprises, rotating with the machine shaft 3, an annular sealing member 63 loaded by a spring 67 to engage its sealing face 64 with a collar 60 axially slidably secured in a bushing 75 in turn non-rotatably secured in a wall not shown of the machine housing end ring; the member 63 preferably is of high quality steel and the engaging. surfaces of both this and member 60 are polished to provide an accurate seal. The seal also includes, rotatable with the shaft 3, a cylindrical member 66 upon which spring 67 acts, an annular ring 65 having at its lower end an S-shaped portion, fitting tightly on the shaft, and a resilient sealing member 72 of e.g. natural or synthetic rubber clamped against the shaft by a clamping ring 70 and of serpentine section to permit relative axial movement of its two ends 73, 74.
Patent GB-771729-A (GB)
Title: Improvements in stud chains
IPC: B21L11/14
Filed: 1955-07-26
Abstract: 771,729. Forging chains; jointing by forging. LJUSNE-WOXNA AKTIEBOLAG. July 26, 1955 [Aug. 24, 1954], No. 21600/55. Class 83 (4). [Also in Group XXV] In a stud chain comprising one or more studs 2 in each link 1, each stud 2 is formed at each of its concave ends with at least two projections 3 which are situated symmetrically on opposite sides of a central plane through the concave end surfaces of the stud and effect an automatic centring of the stud in the link. The cold stud is sealed in position by subjecting the heated sides of the link to hammering or pressing operations acting in the direction of the arrows so that the projections 3 penetrate into the sides of the link. The projections 3 may have a shape other than the rounded one shown.
Patent GB-322161-A (GB)
Title: Improvement in internal combustion engines, especially multicylinder engines
IPC: F02B75/18
Filed: 1928-07-26
Abstract: 322,161. Kjaer, V. A. July 26. 1928. Balancing moving parts by weights. - To minimize the torsional vibrations in the crank shaft of a multi-cylinder engine having more than four cylinders and to avoid resonance at critical speeds, the engine and the crank shaft are made symmetrical about a plane transverse to the axis of the engine shaft and the firing order is also symmetrical about this plane; or the engine may be constructed of parts similarly symmetrical about central planes. The engine may be divided in halves, each half being similarly symmetrical about a plane parallel to the first and passing through the second half; further subsymmetry may be arranged for these groups, a system of symmetrical arrangements about 3, 7, 15, 31 ... planes being thereby obtained. The cranks in each group may be at equal angles to each other; for a twelve-cylinder four-strokecycle engine as shown in Fig. 1 the angle between the cranks in each group is 120‹, but for a twostroke-cycle engine the angle is 60‹. The cylinders 1 and 12, 2 and 11, &c. fire together. Balance weights such as the flywheel h and electric generator rotor r are at the ends of the shaft. The angular displacement of the cranks for a fourstroke-cycle twenty cylinder engine is given; each group of ten on either side of the central plane is divided into two sets of five, each set having its cranks placed so as to produce a pentagen when viewed end on. The two pentagons so formed for each group are displaced with respect to each other. To assist in the prevention of resonance the natural frequency of vibration of the system may be either raised or lowered above the normal. As applied to an eight cylinder engine the frequency is lowered by making the central portion a, Fig. 4, of the crank shaft say four times longer than the other parts b. The frequency may be raised by concentrating the flywheel and balance weights near the central plane of the engine.
Patent GB-1279376-A (GB)
Title: Improvements in or relating to the production of semiconductor components
IPC: G03F7/004
Filed: 1971-04-19
Abstract: 1279376 Semi-conductor devices SIEMENS AG 19 April 1971 [19 Feb 1970] 21660/71 Heading H1K The conductivity and/or conductivity type of part of a semi-conductor body 1 is modified by diffusion from a layer 2 comprising an oxide of a dopant and covered by a layer 4 of SiO 2  which prevents impoverishment of the dopant from the layer 2 into the gas phase during the diffusion heating step. The layer 2, which may comprise the oxide of Sb, B, P or As for a Si body 1, and the layer 4 are formed by depositing a layer of a lacquer containing a compound of the dopant in solution, e.g. a photo-sensitive lacquer or nitrocellulose dissolved in a butyl acetateether mixture and containing SbCl 3  in solution; evaporating off the solvent, shaping the remaining layer 2 by etching, depositing a coating comprising a solution of a silicon compound; e.g. a solution of SiCl 4  or a further lacquer of the abovedescribed type but containing dimethyldichlorsilane instead of SbCl 3 ; and heating in a moist atmosphere to decompose the lacquer base and leave the oxide layers 2 and 4. After diffusion the semi-conductor body 1 is left with a coating of SiO 2  overlying a layer containing mixed oxides of the dopant and Si on the diffused areas. The invention is applicable to the manufacture of Si NPN or PNP transistors.
Patent GB-297555-A (GB)
Title: Improvements in or relating to vehicle wind screens
IPC: B60J1/04
Filed: 1927-08-18
Abstract: 297,555. Simpson, B., and Dow, W. B. Aug. 18, 1927. Windscreens. - A vehicle windscreen, more particularly for toy motor cars, comprises an inverted U- shaped frame 1 adapted to receive the glass 2 from below, the frame having the outer ends of its side members pivotally connected by trunnions 3 to side members 6 attached to the vehicle. The trunnions are adapted to engage split bearings 4 provided with locking-screws 5. The glass is secured in the channel 1 by restricting or filling in the ends of the channel.
Patent GB-1351515-A (GB)
Title: Electrical motor
IPC: H02K29/08
Filed: 1971-04-19
Abstract: 1351515 Circuit accessories for electric motors SIEMENS AG 19 April 1971 [18 Feb 1970] 21752/71 Heading H2A In an electric motor having stator windings, arranged to be supplied through controlled semi-conductor elements, and two magnetic field sensitive devices influenced by a magnet rotating with the motor rotor and arranged to control the semi-conductor elements, the magnetic field sensitive devices are both angularly adjustable and at least one of them is radially adjustable so as to eliminate the neeed for highly accurate setting of the motor components during assembly. The D.C. motor disclosed includes Hall plates 13, 14, mounted on members 6, 7, secured to a support member 1 rotatably adjustable by means of mounting slots 3. The angle of possible adjustment is at least equal to twice the pole pitch of the magnet influencing the Hall plates. In addition, the element 6 is supported on member 1 by screws 9, Fig. 1 (not shown) engaging slots in the member 1 to permit angular adjustment of Hall plate 13 through 90 electrical degrees in either direction to permit fine adjustment of the relative locations of the Hall plates. The Hall plates are radially adjustable by means of screws 15, 16. A terminal board for the Hall plates comprises a board 12 carrying conductive layers electrically connected to the Hall plate leads.
Patent GB-239704-A (GB)
Title: Improvements in and connected with locks or latches
IPC: E05B13/00
Filed: 1924-09-15
Abstract: 239,704. Stevens, A. C. Sept. 15, 1924. Night-latches and like spring locks.-In a lock of the kind which is manipulated from one side by a knob and from the other side by a key, a device which can be used to prevent rotation of the knob B when the door is closed comprises a bar D slidable through a guide d<1> pivoted to the lock casing. When disposed horizontally and moved to the left, the end d<4> of the bar D enters a hole in the stem of the knob, and the hooked end d<3> enters a recess in the lock casing, in which it is retained by the door frame &c. when the door is closed. When the door is open, the bar may be moved to the right to free the knob, and allowed to hang in the vertical disengaged position shown in dotted lines. The bar may be in two parts hinged together, and when used with mortice locks the bar is attached to the door. The knob stem may have a second hole used with the bar to retain the lock in unlocked position.
Patent GB-1057652-A (GB)
Title: Amino derivatives of amino acids
IPC: C07C227/16
Filed: 1964-01-07
Abstract: The invention comprises the compounds L-2,3-diaminoglutaric acid and racemic 2,3-diaminoglutaric acid; and the production of a g -amino derivative of an amino-acid by reacting the corresponding g -chloro derivative (see Specification 1,057,651) with ammonia.  Examples prepare racemic and L-2,3-diaminoglutaric acid from b -chloroglutamic acid, and L- and meso-2,4-diaminoglutaric acid from g -chloro-L-glutamic acid.
Patent GB-1586111-A (GB)
Title: Process and apparatus for separating from water substances dissolved therein
IPC: B01D61/36
Filed: 1977-05-24
Abstract: The invention serves to make the semipermeable membranes previously required for this process unnecessary. With the aid of a compressed gas source, in a vapour chamber (3), which is closed on two opposite sides by porous, but not semipermeable membranes (5, 6), a pressure is maintained which is elevated in comparison to that in an untreated water chamber (2) bordering on one (5) of the membranes. Furthermore, between the membranes (5, 6) a pressure gradient for the water vapour pressure is generated throughout the vapour chamber (3); as a result of this gradient, water evaporating in the untreated water-side membrane (5) migrates to the clean water-side membrane (6), condenses there and flows away through this membrane (6) into a clean water chamber (4) connected thereto. The vapour pressure gradient is ensured by a temperature gradient and/or pressure gradient between untreated water chamber (2) and clean water chamber (4). The apparatus is provided with a compressed gas source, which is connected to a vapour chamber (3) partly delimited by the membranes (5, 6). The gradient of the water vapour pressure between the membranes (5, 6) is ensured by heating and/or cooling or vacuum-generating means. <IMAGE>
Patent GB-332736-A (GB)
Title: An improved machine for opening, filling, closing and stamping envelopes
IPC: B43M5/04
Filed: 1929-07-16
Abstract: 332,736. Sague, G. July 16, 1929. Sheet-separators; p i l e tables; gripper mechanism. -In a machine for filling envelopes with sheets from different sources, the sheets are contained in a series of magazines formed by guide rods 65, Figs. 1 and 14, and guide plates 67, and rest on an intermittently rotating rubber roller 74. The roller feeds the lowermost sheet through guides 82, 83 into the grip of jaws 89, 90 on a transfer arm 85. The jaw 90 is fast upon the arm and the jaw 89 is moved with relation thereto at the appropriate times by an oscillating rod 88. The arm transfers the sheets into the path of pusher pieces 33 on a conveyer chain. A magazine is provided for each stack of different sheets, of which one of each kind is to be inserted into each envelope, and the sheets from each magazine are superposed upon those on the conveyer chain until the collection, in the example illustrated of three sheets, arrives at the inserting station on a plate 97, Fig. 1. The sheets are temporarily held beneath springs 254 against a stop 253. The envelopes are fed from a magazine 138, 141, Figs. 1 and 10, by a rubber feed roller 144. A guide plate 140 directs the leading edge downwards between curved strips 155, 156, at the further end of which it is gripped by jaws 116, 118 on a chain 115, which are turned to close upon the envelope and carry it past opening, filling, moistening, closing, and stamping devices.
Patent GB-261133-A (GB)
Title: Process for the production of arsinic acids of the aromatic series
IPC: C07F9/80
Filed: 1925-09-02
Abstract: 261,133. Ransford, A. J., (Cassella & Co., Ges., L.). Sept. 2, 1925. 2: 1-Benzoxazolone-5-arsinic acids are prepared by reducing 5-nitrobenzoxazolone or a derivative thereof and diazotizing the resulting amino compound in the presence of an arsenite. The products possess therapeutic properties. Examples are given of the production of 2 : 1-benzoxazolone- 5-arsinic acid from 5-nitro-benzoxazolone. 3-methyl-2:1-benzoxazolone-5-arsinic acid from 3-methyl-5-nitrobenzoxazolone, and 3-chlor-2:1- benzoxazolone-5-arsinic acid from 3-chlor-5-nitrobenzoxazolone. Specification 240,969 is referred to. 5-Nitrobenzoxazlone and its derivatives are obtained by the action of phosgene on 1-hydroxy- 2-amino-4-nitrobenzene and its derivatives. The preparation of 5-nitrobenzoxazolone from 4-nitro- 2-aminophenol, of 3-methyl-5-nitrobenzoxazolone from 5-nitro-3-amino-2-hydroxy-1-methylbenzene, and of 3-chlor-5-nitrobenzoxazolone from 5.nitro- 3-amino-2-hydroxy-1-chlorbenzene, is described. Monoazo dyes. - The 5-aminobenzoxazolones which result from the reduction of the 5-nitrobenzoxazolones may be diazotised and coupled with resorcinol or R-salt. Both 5-amino- and 3-methyl- 5-amino-benzoxazolones give yellow-red solutions with resorcinol and red-violet solutions with R- salt, whilst 3-chlor-5-aminobenzoxazolone gives an orange solution with resorcinol and a bluishred solution with R-salt.
Patent GB-623565-A (GB)
Title: Improvements in or relating to refractory cements, and supports or mounts for the resistance wires of electric heating elements
IPC: C04B33/13
Filed: 1946-07-24
Abstract: A refractory cement for supporting heating resistance wires comprises a mixture of 5-15 per cent of a silicon ester with a powdered refractory material having a relatively high coefficient of expansion substantially equal to that of the wire, e.g. magnesium oxide, alumina, refractory brick material, forsterite or quartz.  The wire may be embedded in the cement or held thereby in grooves on a support of substantially the same coefficient of expansion.  According to the Provisional Specification the refractory may be sillimanite.ALSO:A refractory cement for supporting heating resistance wires comprises a mixture of 5 - 15 per cent of a silicon ester with a powdered refractory material having a relatively high coefficient of expansion substantially equal to that of the wire, e.g. magnesium oxide, alumina, refractory brick material, forsterite or quartz.  The wire may be embedded in the cement, or held thereby in grooves on a support having substantially the same coefficient of expansion. According to the Provisional Specification, the refractory may be sillimanite.
Patent GB-630665-A (GB)
Title: Improvements in or relating to ironing machines
IPC: D06F65/06
Filed: 1944-11-10
Abstract: 630,665. Ironing-machines. HARRISON, E. P. Nov. 10, 1944, No. 22177. [Class 138 (ii)] An auxiliary heating shoe 20, for preventing excessive accumulation of moisture on the padded roller 12 of an ironing machine, is automatically moved up to and away from the roller when the roller reaches lower and upper limits of temperature. The shoe 20 shown is electrically heated and is carried by arms 24, 25, 26 on a rock-shaft 27, one arm 26 being connected through an adjustable link 32 to a crank 31 adapted to be turned through 180 degrees and in reverse directions upon successive energizations of a motor 30. A thermostatic switch 39 closes the motor circuit and is responsive to the temperature of a heat conducting element 40 disposed in proximity to the roller 12. Thus, when the roller surface reaches an upper temperature limit the motor is energized and lifts the auxiliary shoe 20, and when the lower temperature limit is then reached, the motor is again energized to reverse the crank 31 and return the shoe. The motor may also operate a switch so as to energize the shoe heater only when the shoe is lowered. The shoe may be heated by the circulation of a hot fluid instead of electrically.
Patent GB-272724-A (GB)
Title: An improved electrical air condenser of variable capacity
IPC: H01G5/38
Filed: 1926-09-08
Abstract: 272,724. Saushkin, V. Sept. 8, 1926. Condensers.-A variable condenser comprises a fixed plate 2 and one or more movable plates 1 pivotally mounted on a pair of parallel pivoted levers 3, 4 so that by movement of a handle 6, the capacity may be varied by simultaneous variation of the distance and amount of overlap between the plates. The points of attachment of the movable plates to the pivoted levers may be varied to vary to minimum capacity and different maximum values are obtained according to the direction of movement of the handle 6 from the vertical position in bringing the plates together, appropriate scales being provided on the pivoted levers. Corrugated plates may be employed to afford greater surface area.
Patent GB-289314-A (GB)
Title: Improvements in or relating to cooling stacks or towers
IPC: F28F25/08
Filed: 1927-08-25
Abstract: 289,314. Branczik, K. W. Aug. 25, 1927. Liquids, treating with gases.-In lath packing for cooling- towers, of the kind described in Specification 19646/14, [Class 29, Cooling &c.], the contiguous ends of adjacent laths 3, 4 are wedged between a supporting rail 2, secured to the faces of or threaded through stack posts 1, and a clamping rail 5 or 5<a>, secured to the side of a stack post, Fig 3, or transversely superposed over the rail 2, Fig. 4. By this arrangement the part of the film of water flowing down the laths 3 that meets the clamping rail is deflected on to a part of the lower lath 4 away from the rail 2 and loss is avoided. The aligned series of rails 5 may overlap at the stack posts when they are secured to the sides of the posts. In the arrangement shown in Fig. 4, the rails 5<a> are bolted to the rails 2. The laths may have notched ends, but are preferably pointed as described in Specification 289,313. The packing may be used in towers described in Specifications 282,932 and 284,018, [both in Class 29, Cooling &c.].