baber/WOPTO huggingface dataset:
Patent CA-1296324-C (CA)
Title: Decyanation of pergolide intermediate
Inventor: MISNER JERRY W
IPC: C07D457/02
Filed: 1986-08-13
Granted: 1992-02-25
Abstract: Abstract of the Disclosure The present invention provides a process for decyanating a pergolide intermediate with an alkali metal hydroxide in an alcoholic solvent.
Patent CA-1283796-C (CA)
Title: High-strength steel for valve springs, process for producing the steel, and valve springs made of the same
Inventor: SAKA TSUTOMU
IPC: C22C38/46
Filed: 1987-01-20
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE     A  high-strength  steel  for  valve  springs,  consisting  of 0.50-0.70  wt.%  of  carbon,  1.50-2.50  wt.%  of  silicon, 0.50-1.20  wt.%  of  manganese,  1.50-2.50  wt.%  of  nickel, 0.50-1.00 wt.% of chromium, 0.20-0.50 wt.% of molybdenum, 0.15-0.25 wt.% of vanadium, and the balance being iron and inevitably included inclusions. Also disclosed is a process for producing such a high-strength steel, which includes a step of minimizing oxygen in a melt of the steel, so as to reduce the oxygen content of the steel to 15 ppm or less, and  a  step  of  adding  calcium to  the  melt  and  thereby controlling the form of the inclusions.  The process may further includes a step of minimizing titanium and nitrogen in the melt,  so as to reduce the titanium and nitrogen content of the steel to 50 ppm or less, and 60 ppm or less, respectively.
Patent CA-1280208-C (CA)
Title: Method of and device for storing and reading digital information, at option protected or not by an error correcting code
Inventor: VAN LUYT BALTHASAR A G
IPC: G11B20/18
Filed: 1987-02-19
Granted: 1991-02-12
Abstract: Abstract: Method of and device for storing and reading digital information, at option protected or not by an error correcting code.     The information stored on a medium (20) in the described system is protected by a double symbol correcting code involving interleaving between the codes. After reading and execution of the error protection, the information is organized in sectors. Subsequent to synchronization information and header information, such a sector contains sub-header information. There is provided a detector (30) for a first and a second sub-mode indication value. In the former case the sector contains further error protection information, for which purpose a special decoder (34) is activated. In the second case further user information is present in the location of this error protection information, and the latter decoder is not activated. The reliability is still further increased by repeating the sub-mode indication value.
Patent CA-1278207-C (CA)
Title: Web forming apparatus
Inventor: NORTH MERLE W
IPC: D21F1/10
Filed: 1987-03-25
Granted: 1990-12-27
Abstract: A WEB FORMING APPARATUS                 ABSTRACT OF THE DISCLOSURE    A forming apparatus (10) is disclosed for forming a web from stock.  The apparatus (10) includes a frame (14), a first and second plurality of guide rolls (16-26 and 30-34) rotatably connected to the frame (14), a first and second forming wire (28, 36) extending respectively around the first and second plurality of guide rolls, the first and second wires (28, 36) cooperating together to define therebetween, a forming section (38) having a first and second (40, 42) end.  A headbox (12) is disposed adjacent to the first end (40) of the forming section (38).  A suction shoe (44) is disposed adjacent to the first end (40) of the forming section for effecting an initial de-watering of the web.  The suction shoe (44) has a curved surface (46) which abuts against the first wire (28) for removing a first portion of the water through the first wire (28) and a second portion of the water through the second wire (36).  A vacuum slot (52) collects the second portion of water and a roll (17) is disposed between the vacuum slot (52) and the second end (42) of the forming section (38) for removing a third portion of the water from the formed web thereby resulting in a gradual increase in dewatering from the first to the second end of the forming section (38) thereby minimizing removal of fines from the stock and inhibiting two-sidedness of the resultant web.
Patent CA-1308917-C (CA)
Title: Method for manufacturing chromium-bearing pig iron
Inventor: OHNO YOTARO
IPC: C22C33/04
Filed: 1987-04-15
Granted: 1992-10-20
Abstract: Abstract of the Disclosure A method for manufacturing a chromium-bearing pig iron comprises the steps of charging cold bond pellets, iron ore and coke lumps into a blast furnace from above and blowing a gas containing more than 50 % oxygen there-in and tuyere nose flame temperature control agent into the blast furnace through the tuyere, the cold bond pel-lets being comprised of powdered chromium ore and pow-dered coke as principal feed materials.  The cold bond pellets are manufactured by performing a mixing, a pelletizing and a curing step.  The tuyere nose flame temperature control agent is a top gas, steam, water or CO2, which is used to control the flame temperature to 2000 to 2900°C.
Patent CA-1324438-C (CA)
Inventor: ANDERSON JAMES C
IPC: H02K33/18
Filed: 1987-07-16
Granted: 1993-11-16
Abstract: Abstract An   improved  rotary-type  read-write  head   actuator assembly  for  use  in a rotating disc  data  storage  device  is provided.   The  head  actuator  assembly includes  an  elongated acutator  arm  pivotally mounted at one end and  having  flexible read-write  head support arms at the other  end.   The elongated actuator  arm  includes a coil internally mounted within an  open cavity  at  the center of percussion of the actuator  arm.   The portion  of the actuator arm supporting the coil moves  within  a magnetic  field to form a voice coil motor to drive the  actuator arm.
Patent CA-1284512-C (CA)
Inventor: SLAUGH LYNN H
IPC: C07C2/34
Filed: 1987-08-13
Granted: 1991-05-28
Abstract: A B S T RA C T         PROCESS FOR DIMERIZING ALPHA-OLEFINS             Process for preparing .alpha.-olefins CH2=C(R)CH2CH2R, R being C1-30-alkyl, cycloalkyl or cycloalkenyl, by dimerizing .alpha.-olefins CH2=C(R)H, at -60 to +280 °C, with a catalyst comprising a) a metallocene (cyclopentadienyl)2MY2, M being Zr or Hf and Y being H, halogen, C1-5-alkyl or C6-20-aryl, and b) an alumoxane, using an atom ratio Al to M from 1 to 100.
Patent CA-1298828-C (CA)
Title: Catalysts for the hydrodenitrogenation of organic materials
Inventor: LAINE RICHARD M
IPC: B01J23/85
Filed: 1987-08-25
Granted: 1992-04-14
Abstract: CATALYSTS FOR THE HYDRODENITROGENATION OF   ORGANIC MATERIALS           ABSTRACT OF THE INVENTION           The present invention discloses a process for forming a catalyst for the hydrodenitrogenation of an organic feedstock, which includes (a) obtaining a precatalyst comprising cobalt and molybdenum or nickel and molybdenum; (b) adding in a non-oxidizing an atmosphere selected from hydrogen, helium, nitrogen, neon, argon, carbon monoxide or mixtures thereof to the precatalyst of step (a), a transition metal moiety selected from compounds of iridium, rhodium, iron, ruthenium, tungsten or mixtures thereof for a time and at a temperature effective to chemically combine the components: and (c) heating the chemically combined catalyst of step (b) optionally in vacuum to remove residual volatile organic materials. Preferably, a precatalyst of cobalt/molybdenum or alumina is heated between 100° and 500°C in a hydrogen atmosphere with an organometallic moiety of ruthenium, preferably ruthenium carbonyl. The invention further includes the catalysts obtained and the process of hydrodenitrogenation of organic feedstocks including a crude petroleum residue, a petroleum fraction, an oil shale fraction, a tar sands fraction, a coal derived powder, a coal derived liquid or mixtures thereof: The process reduces the amount of hydrogen usually needed to obtain hydrodenitrogenation and more selectively produces aromatic product than saturated organic product.
Patent CA-1290162-C (CA)
Title: Control of senescence in fruits, vegetables and flowers
Inventor: DUMBROFF ERWIN B
IPC: A01N43/16
Filed: 1987-10-07
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE    Senescence in perishable plant tissue is inhibited by the application thereto of an effective amount of a compound of the formula:                                wherein R1, R2, R3, R4 and R5 are each selected from the group consisting of hydrogen, -OH or -OR7, provided that at least one of R1 to R5 is a hydroxyl group, R6 is selected  from the group consisting of -OH,  -OR8 and -NHR9, R7 is a substituent group, R8 is the residue of an ester-forming compound and R9 is the residue of an amide-forming compound.   The compound may be prepared synthetically and, in some cases, can be isolated from natural  sources,  for  example,  the  glucose  ester  of ferulic acid may be isolated from carnation petals.
Patent CA-1278351-C (CA)
Title: Bidirectional analogue channel data transmission terminal with an echo canceller coupled to the receiving circuit
Inventor: MARCOS SYLVIE L
IPC: H04B3/23
Filed: 1987-12-30
Granted: 1990-12-27
Abstract: Between a transmission circuit (5) and a reception circuit (6) which are coupled to a bidirectional line (1) by a hybrid coupler (2), an echo canceller (7) synthesises an echo estimated from samples of a transmitted analogue signal (S) sampled at the same frequency (FE) as the received signal (R), the sampling frequency (FE) being controlled by the reception circuit (6), the latter not being synchronous with the transmission circuit (5). 
<??>Such a terminal does not require any interpolating filter at the input of the reception circuit (6) and allows optimal coupling between the echo canceller (7) and an equaliser. 
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Patent CA-1315285-C (CA)
Title: Ether phosphonate surfactants having branched hydrophobic tails and their use in an enhanced oil recovery process
Inventor: HOLMBERG KRISTER
IPC: C09K8/584
Filed: 1988-01-12
Granted: 1993-03-30
Abstract: A B S T R A C T      Novel ether phosphonate surfactants having a branched hydrophobic  tail  are  used  in  a process  for enhanced oil recovery from a subterranean oil reservoir. They combine a high oil-mobilizing capacity with a good tolerance against divalent  ions.   The  ether  phosphonate  surfactants  are summarized by the formula   where  R1  and  R2,  being  the  same  or  different,  are hydrocarbons containing 3-18 carbon atoms each and optionally containing functional groups such as ether and hydroxyl; X is an alkyleneoxy group derived from an alkylene oxide having 2-3 carbon atoms; Y is an alkylene group having 1-4 carbon atoms; R3 is an alkyl group having 1-4 carbon atoms; M+ is a monovalent cation; n1 and n2, being the same or different, are a number from 0 to  4;  m1 and m2,  being the same or different, are 0 or 1, both m1 and m2 not being 0 at the same time and ml being 1 when n1 is a number from 1 to 4 and m2 always being 1 when n2 is a number from 1 to 4; and p is a number from 0 to 10.
Patent CA-1298054-C (CA)
Inventor: TRUYENS HENDRIKUS M T
IPC: A47B43/00
Filed: 1988-01-28
Granted: 1992-03-31
Abstract: Abstract A collapsible structure is provided comprising pairs of parallel posts interconnected by pairs of expansion links-like connecting rods. Connecting rods of each pair have their centres pivotably connected, whereas their outer ends are pivotably connected with the corresponding posts and wherein at least one outer end of each rod is slideable along the corresponding post. The pairs of parallel posts can be superimposed while corresponding posts are at their meeting ends hingedly connected for an accordian-like collapsability in the vertical plane. Further pairs of parallel posts can be laterally positioned while adjoining posts of adjoining pairs of posts are hingedly connected for a substantial change in the angle enclosed by the planes extending through said pairs of posts.
Patent CA-1284845-C (CA)
Title: Communication system using unbalanced communication paths
Inventor: SATO YASUJI
IPC: H04M1/715
Filed: 1988-02-04
Granted: 1991-06-11
Abstract: ABSTRACT OF THE DISCLOSURE      A signal communication apparatus is used for a telephone sys-tem having a plurality of unbalanced communication paths.  A feed-back line of each unbalanced communication path is connected to a ground level and each unbalanced communication path including a phase reversing transformer.  The phase reversing transformer pro-duces two induced currents in the connected path if a speech signal is transmitted through another path.  The induced currents are can-celled due to mutual interference.
Patent CA-1302363-C (CA)
Title: Two-part mailer with return envelope
Inventor: ASHBY ROBERT E
IPC: B65D27/06
Filed: 1988-02-26
Granted: 1992-06-02
Abstract: Abstract of the Disclosure The business or other institution is provided with two complementary series of blank form parts. One of these contains one or more elements of a form of construction (multi-ple ply, window, glassine-patched window, glue spots, patches or strips) which would make it incompatable for use with today's commercially predominate non-impact printers.  The other contains none of such elements and is suited for being run through a business computer-controlled non-impact printer for the purpose of printing of variable information thereon, and of being thereafter assembled and united increment for increment with form parts from the first series, using present-ly available assembling and uniting apparatus, whereupon the united forms may be successively severed into thus individua-lized communications and dispatched to their respective addressees.
Patent CA-1324081-C (CA)
Inventor: IIDA YOSHIMITSU
IPC: A61K47/00
Filed: 1988-03-24
Granted: 1993-11-09
Abstract: SLOW-RELEASE PHARMACEUTICAL AGENT ABSTRACT:       Slow-release pharmaceutical agents which comprise at least one of adenine, cystine and tyrosine in combination with at least one pharmaceutically active substance are disclosed.  The slow-release pharmaceutical agents which may be tablet, granule, implant, capsule, troche, etc., can either slowly release their active substances over time or release the active substances a predetermined time after their administration.  And the slow-release pharmaceutical agent may be used with practically all types of drugs irrespective of whether they are water-soluble or slightly water-soluble, including hypotensives, antipyretic analgesic antiinflammatories, immunoregulators, adrenocortical hormones, antidiabetic agent, vasodilators, cardiotonics, antiarrhythmic agents, anti-arteriosclerotic agents, and antidotes.
Patent CA-1308742-C (CA)
Title: Process for the preparation of (2,2)-paracyclophane and derivatives thereof
Inventor: UNGARELLI RAFFAELE
IPC: C07C1/32
Filed: 1988-04-06
Granted: 1992-10-13
Abstract: ABSTRACT Process for the preparation of (2,2)-paracyclopha-ne or derivatives thereof by the Hofmann elimination of p-methyl-benzyl-trimethylammonium hydroxide or deriva-tives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a compound of the formula (I):                       (R)m- A - (X)n    (I) wherein A represents an aromatic group, X an electron donor group, R hydrogen or an alkyl group containing from 1 to 4 carbon atoms, n is an/integer comprised between 1 and 6 and m is zero or an integer comprised between 1 and a value such that the sum m+n be equal to the number of substi-tuable positions in the aromatic group.
Patent CA-1298353-C (CA)
Title: Device for and method of establishing joints by means of laser beams
Inventor: BEYER ECKHARD
IPC: B23K26/08
Filed: 1988-04-12
Granted: 1992-03-31
Abstract: Abstract of the disclosure A device for and a method of establishing joints by means of laser beams, especially for welding edges. The beam extends essentially parallel to the plane of the joint and perpen-dicular to the line of the joint. The object is to ensure that the energy of the beam is absorbed practically only in the vicinity of the point of junction. The laser beam is accordingly polarized preponderantly parallel to the plane of the joint gap.
Patent CA-1336942-C (CA)
Inventor: CHANCE JAMES L
IPC: D21F5/04
Filed: 1988-05-25
Granted: 1995-09-12
Abstract: A guide roll apparatus is disclosed for guiding a contiguous web and web-supporting felt through a drying section of a paper machine.  The apparatus includes a rotatable guide roll having an outer cylindrical surface defining a first and a second edge portion and a central portion disposed between the edge portions.  The first edge portion defines a first plurality of air  flow channels such that in use of the apparatus, when the web and felt are guided around the rotatable guide roll, air entrapped between the first edge portion and the felt wrapped around the first edge portion is permitted to flow through the first plurality of channels away from the felt so that fluttering of the web during guidance around the first edge portion is inhibited.  The apparatus also includes a second edge portion which defines a second plurality of air flow channels such that in use of the apparatus, when the web and the felt are guided around the rotatable guide roll, air entrapped between the second edge portion and the felt  wrapped around the second edge portion is permitted to flow through the second plurality of channels away from the felt so that fluttering of the web during guidance around the second edge portion is inhibited.
Patent CA-1301327-C (CA)
Title: Process and device for deternining the number of persons in a particular space
Inventor: FARDEAU MICHEL
IPC: H04H60/31
Filed: 1988-06-01
Granted: 1992-05-19
Abstract: PCT No. PCT/FR88/00282 Sec. 371 Date Feb. 2, 1989 Sec. 102(e) Date Feb. 2, 1989 PCT Filed Jun. 3, 1988 PCT Pub. No. WO88/09978 PCT Pub. Date Dec. 15, 1988.The invention relates to a method and to a device for determining the number of people to be found in a determined space, by means of a strip (14) of photodetectors (16) on which an objective lens (10) forms a linear image of a space including objects or people (12). The signals successively produced by the photodetectors (16) are compared by a microprocessor (22) in order to show up movement of people and to deduce the number of people present therefrom. The invention is applicable to performing surveillance of premises and to performing automatic television audience surveys.
Patent CA-1299279-C (CA)
Title: Hearing aid comprising a printed circuit film
Inventor: ERBE EHRENFRIED
IPC: H04R25/02
Filed: 1988-06-24
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE     In a hearing aid formed of a printed circuit film, the operating elements at the hearing aid housing are also utilized for holding the printed circuit film.  Given employment of a multi-layer printed circuit film, the operating elements, and particularly a switch or a potentiometer, can be arranged between the layers such that the required spacing between the layers is guaranteed.
Patent CA-1318290-C (CA)
Title: Soap drying stand
Inventor: BAETA GONCALVES
IPC: A47K5/00
Filed: 1988-07-13
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE           A soap drying stand for use in association with a bar of soap comprising a support for holding the bar of soap, and, a water absorbing sheet, attached to the support and located beneath the bar of soap for absorbing water on or dripping from the bar of soap.
Patent CA-1311254-C (CA)
Title: Personality type board game
Inventor: WRIGHT DONALD A
IPC: A63F3/00
Filed: 1988-08-03
Granted: 1992-12-08
Abstract: A B S T R A C T         This invention relates to a board game having as an objective the generation of information as to the personality type of the players.  The players establish a personality type by answering question   the answer  to which show a predisposition to one of two opposite aspects of personality.  The board game has playing squares that include Feature Squares each of which is indicative of an interest or trait associated with a personality type.  A player qualifies to gain a token corresponding to a Feature Square by landing on a Feature Square representing a particular interest or trait to which t,he player has de~onstrated a predisposition by way of the player's responses to questions which are indicative of personality interests or traits.  Preferably a Personality Type Tabulator is provided as a means for identifying personality types as a result of the tokens gained by each player.
Patent CA-1301420-C (CA)
Inventor: ROBERTS EDWARD
IPC: B29C48/12
Filed: 1988-08-15
Granted: 1992-05-26
Abstract: EXTRUSION METHOD AND APPARATUS    AND PART PRODUCED THEREBY                      ABSTRACT         Extrusion method and apparatus and part produced by the method and apparatus, such as a molding strip which includes a decorative Mylar plastic strip located between a pair of inter-bonded plastic layers.  The top plastic layer or top coat is clear so that the decorative strip can be seen therethrough.  A single die is utilized to produce the molding strip.  The plastic layers are both preferably  flexible  PVC plastic which are interbonded   by   interfusion   between   adjacent surfaces while in a molten state within a bonding chamber of the die so that the plastic layers do not separate during use of the molding strip.  The top coat is interbonded with the other plastic layer or body without requiring the clear plastic to  totally  encapsulate  the  resulting  molding strip.  Also, preferably, a reinforcement wire is embedded in the plastic body within the bonding chamber  to  give  the  molding  strip  additional strength.
Patent CA-1290426-C (CA)
Inventor: BROWN BERNARD T
IPC: G05D23/20
Filed: 1988-08-30
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE A programmable electronic thermostat is provided for controlling operation of a multistage heating apparatus comprising a heat pump and auxiliaryheat. A salient feature is a program which provides for economical recovery from a setback temperature. The program includes logic which determines, at the beginning of the recovery time, whether any or all of the auxiliary stages will be temporarily locked out and thus prevented from being energized. This determination is based on a characteristic which is dependent upon the heating demand that is presently being placed on the heating apparatus. The program alsoincludes logic which determines, near the end of the recovery time, whether any or 111 of the locked stages are to be unlocked. This determination is based on the magnitude of the difference between the temperature existing at the time of determination and the temperature desired at the end of the recovery time.
Patent CA-1303232-C (CA)
Title: Professional office system printer support for personal computers
Inventor: MITCHELL MICHAEL O
IPC: B41J2/485
Filed: 1988-09-16
Granted: 1992-06-09
Abstract: PROFESSIONAL OFFICE SYSTEM PRINTER   SUPPORT FOR PERSONAL COMPUTERS               ABSTRACT OF THE DISCLOSURE      A  printer  support  utility  provides  full support  for  all  compatible printers attached  to personal computers  operating  in a  professional office system environment.  The utility provides an interface that interprets ANSI printable data and restructures  the data  to  allow  for  improved printing of underscore, overstrike and highlight, especially in non-impact printers  such as  laser printers and ink jet printers.  The utility reads each line of printable data from an input file and tests the line for a line control indicating a new print line.   If not a new print line, the utility scans the line for underscoring overstriking and highlighting  of characters;  but  if a  new print line, the utility converts the scanned line to a personal computer printer line and writes the line to an output file.  Finally,  the converted print line in the output file is printed.