baber/WOPTO huggingface dataset:
Patent GB-910944-A (GB)
Title: Improved method for production of acyl taurides
IPC: C07C309/15
Filed: 1961-04-05
Abstract: <PICT:0910944/IV (b)/1> Acyl taurides of formula <FORM:0910944/IV (b)/1> where R1 is an aliphatic saturated or unsaturated hydrocarbon group having 8 to 24 carbon atoms, R2 is hydrogen or an alkyl or cycloalkyl radical having 1 to 8 carbon atoms, and M is hydrogen or an alkali metal, alkaline earth metal or amine (e.g. mono-, di- or triethanolamine, cyclohexylamine or guanidine), are obtained by mixing an acyl chloride with a circulating aqueous alkaline stream of a taurine salt at such a rate that at the point of introduction of the acyl chloride there is at least a 10% molar excess of the taurine salt.  Preferably there is a 50 to 100% molar excess.  In the apparatus shown the taurine salt in aqueous alkaline solution is contained in a tank 1 and is continuously withdrawn through a pipe 2 by a pump 3 and returned to tank 1 by a pipe 4.  Acyl chloride is withdrawn from a tank 5 at an appropriate rate and mixed with the circulating solution, to form the acyl tauride.  The reaction temperature may be from 15 DEG C. to 100 DEG C.  As the reaction proceeds the rate of addition of acyl chloride is reduced to maintain an excess of unreacted taurine salt.  Finished product is removed by a pipe 8, and further taurine salt in alkaline solution may be introduced from a tank 12 by a pipe 10.  In examples acyl taurides are prepared by reacting the sodium salt of N-methyl taurine in aqueous sodium hydroxide solution with oleic acid chloride and with coconut fatty acid chloride, and by reacting the potassium salt of N-cyclo-hexyl taurine in aqueous potassium hydroxide solution with lauric acid chloride.  Other starting materials are mentioned. Specification 783,038 is referred to.
Patent GB-731669-A (GB)
Title: Automatic volume regulator
Inventor: BEVOORT CORNELIS
IPC: H04B3/06
Filed: 1951-05-24
Abstract: 731,669. Automatic gain control systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. May 24, 1951 [June 16, 1950], No. 12230/51. Class 38(4). In Fig. 1, the audio output of a radio receiver connected at 1 is fed through an attenuator R and an amplifier Vs and noise limiter GO to an output line connected at 2. To maintain the amplifier output level between predetermined limits a thermionic valve circuit NM responds to output level above or below the predetermined limits and energizes or deenergizes a relay Ma or Mi the contacts ma or mi of which close or open respectively to run a motor M in the appropriate direction to increase or decrease attenuation. A resistance automatically inserted in the field circuit (not shown) of motor M when increasing attenuation causes the motor to run faster than when decreasing attenuation. Motor M can only operate to decrease attenuation when speech input to attenuator R is above a predetermined minimum. This input is measured by a thermionic valve circuit D which, when speech input is above a predetermined minimum, operates a relay S, a contact S<SP>1</SP> of which prepares a circuit for the motor to run in the direction decreasing attenuation. Relay Mi controls the motor through a slow-to-release relay T to prevent operation of the motor just prior to operation of relay S when speech ceases. Thermionic valve circuit D includes filter circuits deriving a voltage at the syllabic frequency of speech to operate relay S, the energization of which is maintained between syllables by smoothing circuits. Diode valves included in circuit D provide automatic gain control and noise limiting therein. Closing of contact S<SP>2</SP> of relay S when speech disappears applies a blocking voltage to series connected rectifiers and a conducting voltage to shuntconnected rectifiers of noise limiter GO so as to attenuate noise in the absence of speech. Contacts (not shown) cam-operated by motor M limit the extent of operation of motor M in each direction and operate visual and other alarms. The control circuit of motor M, the thermionic valve circuits for measuring input and output levels and the noise limiter circuit are described with reference to Figs. 2a, 2b, 3, 4 and 5 (not shown). Operational levels specified in db. are given. Specification 683,726 is referred to.
Patent GB-441809-A (GB)
Title: Improvements in or relating to grits cleaning machines
IPC: B02B1/02
Filed: 1935-04-23
Abstract: 441,809. Sifting-apparatus. BUHLER BROS., Uzwil, Switzerland. April 23, 1935, No. 12244. Convention date, April 25, 1934. [Class 117] Air passing upwards through a sieve or sieves is guided by surfaces separated from the sieve surface the guiding surfaces being both above and below the sieve or sieves and distributed across the width thereof. In the form shown, blades 4, 5 are mounted above and below the screen 2 which is suspended on links 1 and has tapering outlets 3 for the rising air stream. In a modified form the upper blades have horizontally flattened tops and the lower ones are parallel sided.
Patent GB-327308-A (GB)
Title: Improvements in gas valves
IPC: F16K5/10
Filed: 1929-04-19
Abstract: 327,308. Falkner, A. J. April 19, 1929. Multiple-way valves; closure members.-In a gas valve of the kind described in Specification 311,864. [Class 75 (i), Burners &c.], having a rotary plug and a coaxially disposed injector needle acting conjointly therewith, provision is made for the simultaneous control of primary air, gas supply, and the injector needle. The primary air supply is varied by a. semicylindrical prolongation 12 on the plug 1 co-operating with a correspondingly shaped air inlet 11 in the casing 3 as the plug 1 is rotated to admit gas through a gas inlet 9. A sleeve 6 rotatably secured to, but axially slidable on, the plug 1 is secured to the injector 7 and is rotatable by a handle 4, this rotary movement rotating the plug 1 and air inlet prolongation 12, and moving the sleeve 6 and the injector 7 axially by the co-operation of a roller 16 on the casing 3 with a face cam 15 on the shank 5 of the sleeve 6. A spring-controlled telescopic gland 17, 2G, 21 prevents the leakage of gas past the spindle 18 of the injector 7.
Patent GB-881983-A (GB)
Title: Improvements in the dynamic braking of induction motors
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
IPC: H02P3/18
Filed: 1959-04-10
Abstract: 881,983. Control of motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 6, 1960 [April 10, 1959], No. 12249/59. Class 38 (3). An induction motor 1 is braked by connecting capacitors 4 across the windings by contacts 31 which close when supply contactor 3 opens, and shunting said capacitors by a rectifier 5 and a further capacitor 8 through the closure of a relay 6. When the self-excitation voltage has dropped to a pre-determined value. The capacitor 8 is preferably at least ten times larger than each capacitor 4, whose reactance at the supply frequency is equal to the shortcircuit reactance of the motor.
Patent GB-167276-A (GB)
Title: Damp-proof interlocking concrete building block
IPC: E04B2/02
Filed: 1920-05-03
Abstract: 167,276. Osgood, F. F., and West, S. H. May 3, 1920. Building-blocks, special shapes of.-A pre-cast building-block is formed by joining two slabs D, E, of equal width and thickness, but of unequal length, so that equal rabbets are formed or one side and two ends of one slab and on one side only of the other slab. Impervious layers of bitumen or other mastic are inserted between the slabs and extend to cover the rabbets, and the whole is secured by metal ties. The blocks can be laid with rabbets of each adjoining block reversed so as to interlock and form a lapped joint on all four sides.
Patent GB-793931-A (GB)
Title: Rotor for rotary power conversion machines
IPC: F01D5/30
Filed: 1954-08-10
Abstract: 793,931. Cotters. PURVIS, J. T., and SACHS, R. M. Aug. 10, 1954, No. 12293/57. Divided out of 793,930 [Group XXVI]. Class 89(2) [Also in Group XXVI] A locking or retaining pin for preventing endwise movement of blades mounted in axially-extending slots formed at the periphery of a turbine or compressor rotor disc is shown in Fig. 2 and comprises a shank portion 21, a head 25 at one end, and a part-head 26 and a deformable tab 27 at the other end. In one embodiment a groove 16 is formed in the lower surface of each blade root 17, the shank 21 of the pin engaging in the groove 16, the head 25 engaging one end face of the blade root and the part-head 26 engaging a recess 28 in the other end face of the -blade root. The blade root and pin are entered in the rotor slot 15 until the head 25 abuts against the lefthand face of the rotor disc. The tab 27 of the locking pin is then bent radially inwardly to-bear against the right-hand face of the rotor disc thereby securing the blade in position.
Patent GB-887944-A (GB)
Title: Improvements in or relating to deck chairs
IPC: A47C4/30
Filed: 1959-04-11
Abstract: 887,944. Deck chairs; tables. RAYNER, G. H., and HAMMOND, J. H. July 8, 1960 [April 11, 1959], No. 12313/59. Classes 52(2) and 52(3) A deck chair comprises two frames 1, 2 pivoted at 1B intermediate their ends, a third frame 4A pivoted at 4 to frame 1 and the lower end engaging notches 6 in the frame 2. A removable panel 5A fits into the grooves 5 in the frame 4A and forms a table surface when the frame is rotated and fixed by a screw fitting through hole 7 and into 7A. An attachment 8 that when fixed to the frame 2 forms a leg rest and when fixed to the frame 4A forms a canopy comprises arms 8E that are fixed by screws to either of the frames 2 or 4A, legs 8B that are used when acting as a leg rest and grooved side members 8A. The attachment 8 can further be used as a table with 8B, 8E as legs and the panel 5A fitting in the grooves of the side members as the top. A cover 10 fits over the attachment 8 as the shield for the canopy or the supporting surface for the leg rest with a foam rubber pad 10A at one end forming a head rest or a leg support.
Patent GB-898929-A (GB)
Title: Method of purifying olefin polymers
IPC: C08F6/02
Filed: 1961-04-06
Abstract: 898,929. Purifying olefin polymers. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. April 6, 1961 [April 11, 1960], No. 12321/61. Class 2(6) Polymers obtained by polymerization of olefins in the presence of stereospecific catalysts are purified by treatment with a lactone compound, e.g. γ-butyrolactone, γ-valerolactone, 8-valerolactone or α,#-dimethylpropiolactone. The purification may be effected with the aid of an inert solvent, such as heptane, and subsequent treatment with water or steam is optionally carried out. In examples polypropylene obtained by the use of TiCl 3 +AlEt 3  in heptane, is purified using various lactones. The purified, stereoregular polymers obtained may be formed into fibres or films. Specification 828,791 is referred to.
Patent GB-118449-A (GB)
Title: Improvements in Wire Cutters.
Inventor: LOGAN JOHN EDWARD
IPC: F41H11/11
Filed: 1917-08-28
Abstract: 118,449. Logan, J. E. Aug. 28, 1917. Cutters.-Apparatus for cutting a number of strands of wire simultaneously, particularly for use in cutting wire entanglements, consists of a framework comprising an horizontal arm 2 and a vertical member 3 provided with cross-pieces 5, 6 adapted to be secured by straps 7 to the breast and abdomen of the operator. A bar 13 provided with a series of notches 15 is secured at its middle part to a bracket 12 on the arm 2, and a second bar 14 also provided with notches 16 is slidably held against the bar 13 by clips 21. The notches 15, 16 are provided with shearing- edges, and the wires are guided into the notches by triangular guides 20 secured to the bar 13. The bars 13, 14 are slightly inclined to the vertical, as shown in Fig. 2, so that the notches 15, 16 are horizontal. Stops 22, 23 on the bar 13 limit the movement of the bar 14, and the lower stop is detachable to allow the bar 14 to be removed. The bar 14 is operated by a handlever 26 pivoted at 30 to the bracket 12 and connected by a link 28 to a lever 27 pivoted at 31, the short end of the lever 27 engaging in a bridge bracket 33 on the bar 13. The handle 26 and frame 2 are preferably made of insulating- material to protect the operator when cutting electrically charged wire.
Patent GB-1353297-A (GB)
Title: Separation apparatus using ultrafiltration
Inventor: GIGOUN C
IPC: A61M1/34
Filed: 1972-03-16
Abstract: 1353297 Ultra filtration RHONE-POULENC SA 16 March 1972 [17 March 1971] 12394/72 Heading B1X Apparatus for the purification of a liquid comprises: (a) an ultrafiltration cell divided into two compartments by an ultrafiltration membrane, the first compartment being equipped with an inlet and an outlet for the liquid to be treated and the second compartment being equipped with an outlet for the ultrafiltered liquid; (b) means for establishing in the first compartment of the ultrafiltration cell a pressure higher than that prevailing in the second compartment of the cell; and (c) a dialyser separated into two compartments by an ionic membrane, the first compartment being equipped with an inlet connected to the outlet from the second compartment of the ultrafiltration cell and with an outlet connected to the outlet of the first compartment of the ultrafilration cell, the second compartment of the dialyser being itself equipped with an inlet and an outlet. The apparatus may be used as an artificial kidney, blood being subjected to ultrafiltration and the ultrafiltrate then dialysed. before returning to the body along with that part of he blood no passing the ultrafiltration membrane. In one embodiment the dialysis fluid from the second stage is purified in a third stage and recirculated.
Patent GB-568999-A (GB)
Title: Tools for installing tubular rivets
IPC: B25B27/00
Filed: 1944-06-29
Abstract: 568,999. Setting tubular rivets. INDEPENDENT PNEUMATIC TOOL CO. June 29, 1944, No. 12404. Convention date, June 11, 1943. [Class 43] Apparatus for setting tubular rivets having an internal screw-threaded bore comprises a support in which are mounted a spindle, having a screwthreaded outer end by which the threaded portion of the rivet may be engaged and which may be rotated in either direction to engage it with and disengage it from the rivet, and an anvil or reaction member movable relatively to the support and the spindle to upset the rivet. The spindle and anvil are operated independently by two pressure fluid motors, both under the control of a single rotary valve, which is rotatable in successive steps, by a trigger device, to cause the spindle to be rotated to engage the rivet, to cause the rivet to be collapsed or upset and then to cause the spindle to be disengaged. As shown, a spindle 27 having a screw-threaded end 78 for engagement with the screw-threads of the rivet, and an anvil 13 are supported in a casing shaped to be readily held in the hand, the anvil being capable of forward movement to set the rivet under the action of a ben-crank lever 45 pivoted at 42 in lugs 43 in the casing and pivoted by engagement of rollers 52 carried by piston-rod 37 of a reciprocating motor 5 with the cam-shaped underface of the arm 45. The spindle 27 is rotated by a rotary motor 4 through sun - and - planet reducing gearing shown. A single rotary valve 7 supported in the casing is turned step-by-step by a trigger (not shown), to operate both motors 4, 5. An electric lamp 99 is lit by a cell 103, when circuit is completed by forward movement of the anvil, to indicate when the rivet is set. The anvil 13 is held against rotation during use by engagement of forward end 46 of arm 45 in a slot in its rear end, and is adjustably mounted in its support 14 to that the extent to which a rivet may be upset may be controlled. A supply of air is coupled to the tool handle 2 at 9 and lubricating oil is fed from a reservoir 10 into the air stream by a regulator mounted in a recess 11 in a wall inside the handle 2.
Patent GB-568744-A (GB)
Title: Improvements in or relating to methods of and apparatus for controlling crossed threads for warp tying and other warp preparing machines
IPC: D03J1/14
Filed: 1943-07-30
Abstract: 568,744. Warp leasing devices. ZELLWEGER AKT.-GES. APPARATE- & MASCHINENFABRIKEN USTER. July 30, 1943, No. 12413. Convention date, July 31, 1942. [Classes 142 (ii) and 142 (iv)] A leasing apparatus for a warp-tying or other warp-preparing machine is provided with means for detecting a faulty sequence of the individual threads and for stopping the machine when such sequence occurs. The threads a, b forming the lease are guided over and under a lease rod 23 additional to the usual lease cords 21 in a predetermined sequence differing from that of the lease formed about the cords 21, and in dividing out the threads above and below the lease rod 23, the threads are engaged by a detecting lever 8. On the occurrence of a faulty sequence in the threads, the lever 8 falls into a recess 7 in a control disc 5 and operates a switch 11 to stop the machine. In a machine employing a 1 : 1 lease, the threads are arranged about the lease rod in a 2: 2 lease, and two recesses 7 are provided upon the disc 5, spaced at 90 degrees apart. The disc 5, which is rotated by ratchet gearing 2, 3 makes one revolution for each four threads divided out, and the recesses 7 are so disposed that they are in alignment with a projection 9 on the lever 8 when the lever engages a thread passing over the lease rod 23. The machine is restarted by the depression of a hand button 18 which by links 15, 17 operates a pawl 14 to rotate a ratchet 13 secured to the sleeve 6 carrying the control disc 5.
Patent GB-140922-A (GB)
Title: Improvements in heat conducting joints of heated metal bodies
IPC: F01P1/00
Filed: 1919-05-17
Abstract: 140,922. Raymond, A. May 17, 1919. Joint-making packing.-The heat conducting capacity of a joint between two metal surfaces, such as the iron barrel and aluminium jacket of an internal-combustion engine cylinder, may be reduced in consequence of the unequal expansion of the parts. This is remedied by filling cavities in the joint with a metal or alloy which becomes fluid or plastic below the working temperature. A screwed joint may have the crowns of the threads removed to form a cavity.
Patent GB-1456122-A (GB)
Title: Cassette-type magnetic tape recorder and/or reproducer
IPC: G11B15/675
Filed: 1974-03-20
Abstract: 1456122 Cassette tape apparatus HITACHI Ltd 20 March 1974 [2 April 1973] 12456/74 Heading G5R A cassette-type magnetic tape recording and/or playback apparatus has a cassettereceiving location on a member 2, Fig. 1, which is movable between a cassette-loading first position and an operative second position, and a support 18 which in response to such movement rotates towards the loaded cassette to engage a record/playback head 19 on support 18 with the tape 26 and to engage a pinch roller 22 with a capstan 27 on a fixed member 1, roller 22 being mounted on an arm 23 on support 18 and the support 18 being pivoted 16 on the member 2, a member 28, Fig. 6, engaging the arm 23 so as to maintain a gap between roller 22 and capstan 27 during the movement of member 2 and there being means to release the arm 23 from member 28 automatically on member 2 reaching its operative position. The arrangement prevents damage and wear to tape 26, roller 22 and capstan 27 which might occur due to tape 26 being pinched between roller 22 and capstan 27 before the cassette reaches the operative position. Member 2 is movable in a direction perpendicular to the plane of Fig. 1. Member 28 is a ring on a shaft 30, Fig. 6, fixed in a bearing 29 in member 2 and urged downwards by a spring 32. As member 2 reaches its operative position the lower end of shaft 30 abuts the fixed member 1 to release ring 28 from arm 23. The cassette 3 is located by guides 13, 14, 15 and spring-biased pivoted arms 6, 9, 12, arm 6 being effective to push cassette outwardly on release of arm 9. Engagement between a fixed, inclined surface (25), Figs. 3, 5, 7 (not shown), and the support 18 pivots the support towards the cassette as the member 2 is lowered to the operative position.
Patent GB-1179339-A (GB)
Title: A Band Saw and File Device
Inventor: FUNAKUBO SHINNOSUKE
IPC: B23D61/12
Filed: 1967-03-17
Abstract: 1,179,339. Sawing. S. FUNAKUBO. 17 March, 1967 [17 March, 1966; 9 Dec., 1966], No. 12539/67. Addition to 1,002,543. Heading B5L. [Also in Division B3] A band saw and file device comprises a narrow saw band 1<SP>1</SP> with sawtooth projections formed on one edge and a broader supporting band 1<SP>11</SP>, the two bands being adapted to be mounted on the wheels 3, 5 of a band sawing machine such that the trailing edge of the saw band abuts the leading edge of the supporting band, the latter having filing means formed on its face.
Patent GB-216318-A (GB)
Title: Improvements in vehicle bodies
IPC: E05F11/38
Filed: 1923-05-10
Abstract: 216,318. Daimler Co., Ltd., and Bush, A. E. May 10, 1923. Fastenings for hinged windows.-In vehicle windows wherein the upper part of the main frame C is adapted to fold inwardly and downwardly the frame is secured in the erect position by means of locking-means actuated by a twisting-rod F<3> extending across the frame and provided with a handle G which, when in positions below the horizontal, is inoperative upon the locking-devices and requires to be moved into the path of the window to release them. In the construction shown in Fig. 3 the locking-device is a plunger D carried by a housing D<2> fixed to the frame C and normally thrust bv a spring D' towards the hinge axis C<2>. Concentric with the hinge axis is a lug E fixed to the door and the plunger D rides on this part until the frame is in the erect position when the plunger enters a recess E<2> in the lug. A releasing-device comprises a cam F for each plunger connected by the handle rod F<3> and arranged to operate a short tappet F<2> mounted in a recess E<2> extending into the central recess E<3>. On turning the handle rod the cams operate the tappets F<2> and push the plungers out of the recesses E<2> and thereby unlock the joint. In the construction shown in Fig. 5 the hinged channel members C<3> terminate in bosses around the pivotal axis C<2>, each of which bosses is formed with a notch C<4> and on some fixed part is pivoted a catch K acted upon by a spring fixed to the rod F<3>. These catches under the influence of the spring drop into the notches C<4> when the guides are in the erect position and can be released by operation of the rod F<3>.
Patent GB-239807-A (GB)
Title: Improvements in or relating to buffers for railway and like cars
IPC: B61G11/06
Filed: 1925-05-14
Abstract: 239,807. Mohr, H. May 14, 1925. Vibration-dampers.-A buffer gear for railway and like cars comprises solid rings c adapted to move longitudinally, intermediate split rings d adapted to be compressed or expanded by the longitudinal movement of the rings c, and one or more cylindrical or conical split rings e adapted to be compressed or expanded by the intermediate rings d whereby longitudinal forces or shocks are transmitted radially to the spring device. The end of the buffer plunger b bears on the end ring c so that in buffing the split rings d, which may be circular in cross-section, move radially to compress the cylindrical or conical split rings e. The rings e may vary in thickness and may be spaced apart so that each ring is compressed successively; the split edges of the rings e may also be arranged to overlap under load. In Fig. 10, the solid rings c are arranged on the inside and the split cylindrical or conical rings e on the outside.